A load lifting device and method designed for a water turbine unit lifting hole

Abstract

The application discloses a load lifting device designed for a water and electricity unit lifting hole, relates to the field of river basin power station overhauling and transferring equipment, and discloses the load lifting device designed for the water and electricity unit lifting hole, which comprises a bearing platform, a platform bearing mechanism, a telescopic top pressing support mechanism, a telescopic fixing mechanism and a turnover bearing mechanism. The telescopic top pressing support mechanism is closely combined with one side of the inner wall of the lifting hole channel, the telescopic fixing mechanism is fixed on both sides of the inner wall of the lifting hole channel, and the turnover bearing mechanism is fixed on both sides of the platform bearing mechanism. A spider crane is fixed on the other side of the bearing platform. A lifting hole channel is fixed between the bearing platform and the spider crane for transferring tools. Through cooperation of the spider crane and the bearing platform, the material can be safely and efficiently transferred, the direct participation of workers is reduced, and the work efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of river basin power station maintenance transfer equipment, in particular to a load lifting device and method designed for a water turbine unit lifting hole. BACKGROUND

[0002] In the process of water turbine unit maintenance, there are a large number of equipment and tools with large volume and significant weight, which need to be transferred from the water wheel room, spiral casing layer, generator layer, busbar layer and water turbine layer of the unit section in the plant. When these equipment and tools are lifted to the generator layer of the plant through the lifting hole, due to the limited operation space and conditions, only non-standard inclined lifting can be used, and the lifting personnel need to command and coordinate in different levels. This operation method not only has high construction risk, but also significantly reduces the work efficiency, and also causes unnecessary occupation of limited lifting resources. SUMMARY

[0003] In view of the problems existing in the load lifting device designed for the water turbine unit lifting hole, the present application is proposed.

[0004] Therefore, the problem to be solved by the present application is how to solve the problem of difficult lifting and transfer of various materials during water turbine unit maintenance.

[0005] To solve the above technical problems, the present application provides the following technical scheme: a load lifting device designed for a water turbine unit lifting hole, comprising a bearing platform, a platform bearing mechanism, a telescopic top pressure support mechanism, a telescopic fixing mechanism and a turnover bearing mechanism, the telescopic top pressure support mechanism is closely attached to one side of the inner wall of the lifting hole channel, the telescopic fixing mechanism is fixed on both sides of the inner wall of the lifting hole channel, and the turnover bearing mechanism is fixed on both sides of the platform bearing mechanism; a spider crane is fixed on the other side of the bearing platform.

[0006] As a preferred scheme of the load lifting device designed for the water turbine unit lifting hole, the bearing platform comprises a platform and a reinforcing beam, and the two ends of the reinforcing beam are fixedly connected with the bottom of the platform and the inner wall of the lifting hole channel.

[0007] As a preferred scheme of the load lifting device designed for the water turbine unit lifting hole, the telescopic top pressure support mechanism comprises a fixed installation assembly, a sliding assembly and a driving assembly, the fixed installation assembly is fixedly arranged on one side of the bearing platform, the sliding assembly is fixedly arranged on one side of the fixed installation assembly, and the driving assembly is fixedly arranged on one side of the sliding assembly.

[0008] As a preferred scheme of the load lifting device designed for the water turbine unit hoist hole, the sliding assembly comprises a sliding rail, a sliding connecting block, an adapter plate and a top pressing plate, the sliding rail is bolted with the fixed mounting assembly and the sliding connecting block respectively, the adapter plate is bolted with one end of the sliding connecting block, and the top pressing plate is bolted with one side of the adapter plate.

[0009] As a preferred scheme of the load lifting device designed for the water turbine unit hoist hole, the driving assembly comprises a front hinge base, a power cylinder, a rear hinge base, a telescopic top pressing mechanism pin shaft and a telescopic top pressing mechanism fixed pin, the front end of the power cylinder is rotationally connected with the front hinge base through the telescopic top pressing mechanism pin shaft and the telescopic top pressing mechanism fixed pin, the rear end of the power cylinder is rotationally connected with the rear hinge base through the telescopic top pressing mechanism pin shaft and the telescopic top pressing mechanism fixed pin, the front hinge base is bolted with the sliding connecting block, and the rear hinge base is bolted with the fixed mounting assembly.

[0010] As a preferred scheme of the load lifting device designed for the water turbine unit hoist hole, the telescopic fixing mechanism comprises a wall fixing block and a telescopic rod, the wall fixing block is bolted with the telescopic rod, and the telescopic rod is slidingly matched with one end of the platform.

[0011] As a preferred scheme of the load lifting device designed for the water turbine unit hoist hole, the turnover bearing mechanism comprises a front turnover mechanism, a rear turnover mechanism and a pipe passing rear turnover mechanism, and the front turnover mechanism, the rear turnover mechanism and the pipe passing rear turnover mechanism are rotationally connected through a turnover pin shaft and a turnover fixed pin for turnover.

[0012] As a preferred scheme of the load lifting device designed for the water turbine unit hoist hole, one side end surface of the platform is provided with a butt joint rail for connecting other transportation mechanisms.

[0013] As a preferred scheme of the load lifting device designed for the water turbine unit hoist hole, the spider crane comprises a track disc, a support arm fixedly arranged on the track disc and a main hoisting arm, and the support arm is provided with at least four support arms to ensure safety and stability.

[0014] To solve the above technical problems, the application further provides a method suitable for the load lifting device designed for the water turbine unit hoist hole, which comprises the following steps: connecting the telescopic top pressing support mechanism and the telescopic fixing mechanism with the hoist hole passage respectively; completely flattening the platform through the turnover bearing mechanism; moving the material to be transferred onto the platform; and lifting the material out of the hoist hole passage through the spider crane.

[0015] The present application has the beneficial effects that: through the design and reconstruction of the bearing platform, the safe and efficient transfer of materials in the maintenance process of the hydroelectric generating set is realized, the maintenance efficiency is improved, and the safety risk is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 It is a schematic diagram of the object carrying lifting device designed for the hydroelectric generating set hoisting hole.

[0018] Figure 2 It is a top view of the bearing platform.

[0019] Figure 3 It is a front view of the bearing platform.

[0020] Figure 4 It is a partial enlarged view of the telescopic top pressing support mechanism.

[0021] Figure 5 It is a bottom view of the bearing platform.

[0022] Figure 6 It is Figure 5 a partial enlarged view of the middle B. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0024] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0025] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor does it mean that the embodiment is mutually exclusive with other embodiments or is selected.

[0026] Embodiment 1

[0027] ReferenceFigure 1 For the first embodiment of the present application, the embodiment provides a load lifting device designed for the load hole of a hydroelectric generating set, comprising a bearing platform 100, a spider crane 200 and a load hole passage 300.

[0028] Specifically, the spider crane 200 is fixedly arranged above the bearing platform 100 to facilitate lifting and transferring the maintenance materials of the hydroelectric generating set, and the load hole passage 300 is a passage arranged between the bearing platform 100 and the spider crane 200. When the spider crane 200 works, the materials are lifted from the bearing platform 100 and pass through the load hole passage 300 to complete the work.

[0029] The spider crane 200 comprises a track disc 201, support arms 202 fixedly arranged on the track disc and a main lifting arm 203. The support arms 202 are arranged at least four to ensure safety and stability. The track disc 201 is fixedly arranged at the bottom of the spider crane 200 as a walking component. When the motor is driven, the track disc 201 starts to drive and continuously rotates on the ground to make the spider crane 200 advance. The support arms 202 are fixedly arranged on both sides of the track disc 201 and two are arranged on each side. When the track disc 201 advances, the four support arms 202 are responsible for enhancing the stability of the spider crane. The main lifting arm 203 is fixedly arranged at one end of the spider crane 200, and the main lifting arm 203 further comprises a connecting rope and a hook.

[0030] In use, when the spider crane 200 advances to the side of the load hole passage 300, the main lifting arm 203 adjusts the direction and angle, and after the connecting rope and the hook are aligned with the load hole passage 300, the connecting rope is released until the hook contacts the material to be transferred. After the arrangement is completed, the material placed on the bearing platform 100 is lifted through the load hole passage 300 to the target position.

[0031] In summary, through the cooperation of the bearing platform 100, the spider crane 200 and the load hole passage 300, the materials that are inconvenient to transfer can be safely lifted and transported, the safety risk is reduced, and the manpower is saved.

[0032] Embodiment 2

[0033] Reference Figure 3 and Figure 4 For the second embodiment of the present application, the embodiment is based on the previous embodiment.

[0034] Specifically, the bearing platform 100 comprises a telescopic pressing support mechanism 102 fixedly arranged at the lower part of the bearing platform 100 and close to one end of the hoisting hole passage 300, which is closely attached to one side of the inner wall of the hoisting hole passage 300. The telescopic pressing support mechanism 102 comprises a fixed installation assembly 102a, a sliding assembly 102b and a driving assembly 102c. The fixed installation assembly 102a is fixedly arranged at one side of the bearing platform 100, the sliding assembly 102b is fixedly arranged at one side of the fixed installation assembly 102a, and the driving assembly 102c is fixedly arranged at one side of the sliding assembly 102b. The fixed installation assembly 102a is fixedly arranged at the long side of the bearing platform 100, ensuring the stability and reliability of the entire mechanism during operation. The driving assembly 102c drives the sliding assembly 102b to move towards the inner wall of the hoisting hole passage 300 until it is attached, making the entire bearing platform 100 more stable.

[0035] The sliding assembly 102b comprises a sliding rail 102b-1, a sliding connecting block 102b-2, an adapter plate 102b-3 and a pressing plate 102b-4. The sliding rail 102b-1 is bolted to the fixed installation assembly 102a and the sliding connecting block 102b-2 respectively. The adapter plate 102b-3 is bolted to one end of the sliding connecting block 102b-2, and the pressing plate 102b-4 is bolted to one side of the adapter plate 102b-3. The pressing plate 102b-4 is the main working part of the telescopic pressing support mechanism 102, and its surface is specially treated to ensure good contact with the object being pressed. The sliding rail 102b-1 is stably fixed by bolt connection. When the sliding assembly 102b is driven by a pushing force, one end of the sliding connecting block 102b-2 will move in the sliding rail 102b-1 until the pressing plate 102b-4 is attached to the inner wall of the hoisting hole passage 300.

[0036] The driving assembly 102c comprises a front hinge seat 102c-1, a power cylinder 102c-2, a rear hinge seat 102c-3, a telescopic pressing mechanism pin shaft 102c-4, and a telescopic pressing mechanism fixed pin 102c-5. The front end of the power cylinder 102c-2 is rotatably connected to the front hinge seat 102c-1 through the telescopic pressing mechanism pin shaft 102c-4 and the telescopic pressing mechanism fixed pin 102c-5. The rear end of the power cylinder 102c-2 is rotatably connected to the rear hinge seat 102c-3 through the telescopic pressing mechanism pin shaft 102c-4 and the telescopic pressing mechanism fixed pin 102c-5. The front hinge seat 102c-1 is bolted to the sliding connecting block 102b-2, and the rear hinge seat 102c-3 is bolted to the fixed mounting assembly 102a. The power cylinder 102c-2 serves as a driving device to provide strong power for the sliding assembly 102b to realize the pressing operation on the wall. The front hinge seat 102c-1 and the rear hinge seat 102c-3 are two hinge points of the driving assembly 102c, allowing the driving assembly 102c to realize flexible movement. The pin shaft and the pin are fasteners for connecting various components, serving as fixing and connecting functions to ensure the structural integrity and stability of the telescopic pressing mechanism.

[0037] In use, the power cylinder 102c-2 provides power to drive the sliding connecting block 102b-2 to smoothly slide on the sliding rail 102b-1, so that the sliding assembly 102b can slide along the sliding rail 102b-1. When the sliding connecting block 102b-2 extends towards the inner wall of the hoisting hole passage 300, the pressing plate 102b-4 will come into contact with the inner wall of the hoisting hole passage 300 and be pressed until it is completely fixed to the inner wall, effectively realizing the stable support and fixation of the carrying platform 100.

[0038] Embodiment 3

[0039] Reference 2 Figure 6 This is the third embodiment of the present application, which is based on the first two embodiments.

[0040] Specifically, the carrying platform 100 further comprises a platform carrying mechanism 101, a telescopic fixing mechanism 103, and a turnover carrying mechanism 104. The telescopic fixing mechanism 103 is fixedly arranged on one side of the platform carrying mechanism 101, and the turnover carrying mechanism is fixedly arranged at both ends of the platform carrying mechanism 101.

[0041] Further, the platform carrying mechanism 101 comprises a platform 101a and a reinforcing beam 101b. The two ends of the reinforcing beam 101b are fixedly connected to the bottom of the platform 101a and the inner wall of the hoisting hole passage 300, respectively. The reinforcing beam 101b is obliquely welded to the bottom of the platform 101a, increasing the stability of the platform 101a and improving the carrying capacity of the overall structure.

[0042] The telescopic fixing mechanism 103 comprises a wall fixing block 103a and a telescopic rod 103b, the wall fixing block 103a is bolted with the telescopic rod 103b, and the telescopic rod 103b is in sliding fit with one end of the platform 101a. The telescopic rod 103b can be flexibly adjusted in position in one end of the platform 101a to ensure that the spider crane 200 can accurately hoist the materials during work, and the wall fixing block 103a is fixedly arranged at both ends of the telescopic rod 103b, when the telescopic rod 103b is extended to the wall and closely abuts the wall, the wall fixing block 103a and the wall are fixed by bolts, so that the stability and reliability of the structure are ensured.

[0043] The turnover bearing mechanism 104 comprises a front turnover mechanism 104a, a rear turnover mechanism 104b and a pipe-passing rear turnover mechanism 104c, and the front turnover mechanism 104a, the rear turnover mechanism 104b and the pipe-passing rear turnover mechanism 104c are rotationally connected with a turnover pin shaft 104d and a turnover fixing pin 104e for turnover. The turnover bearing mechanism 104 is fixed with the platform bearing structure through the stable connection of the pin shaft and the pin, and has the function of rotating within a certain angle range. The space on both sides of the bearing platform 100 and the hoisting hole passage 300 can be effectively filled to improve the stability and safety of the overall structure. After the telescopic top pressing support mechanism 102 and the telescopic fixing mechanism 103 are connected, the front turnover mechanism 104a, the rear turnover mechanism 104b and the pipe-passing rear turnover mechanism 104c will be operated to rotate until they are completely flattened.

[0044] The side end face of the platform 101a is provided with a butt joint track 101a-1 for connecting other transportation mechanisms. The other transportation mechanisms can directly transport the materials to the bearing platform 100 through the butt joint track 101a-1.

[0045] In use, the telescopic top pressing support mechanism 102 and the telescopic fixing mechanism 103 are first connected with the inner wall of the hoisting hole passage 300, the turnover bearing mechanism 104 completely unfolds the platform 101a, the materials are transferred from the butt joint track 101a-1 to the platform 101a, and the spider crane 200 accurately hoists the materials from the platform 101a and then hoists them out of the hoisting hole passage 300, so that the efficient transfer of the materials from bottom to top or from top to bottom is realized.

[0046] In summary, the beneficial effects of the present application are as follows:

[0047] 1. The present application has a rigorous design and a stable structure. During the maintenance work, if it is necessary to transfer parts or tools from each maintenance layer to the generator layer, the bearing platform 100 can be quickly built and cooperated with the spider crane 200 to realize the efficient and safe transfer of the materials. This effectively reduces the direct participation of the workers and reduces the occupancy rate of the hoisting equipment resources in the maintenance process.

[0048] 2、The device adopts modular design, aiming at realizing the convenient disassembly and folding function of the device, thereby significantly reducing the occupation of storage space. This design not only facilitates the operation in the transportation process, but also greatly facilitates the assembly process of the device, showing efficient and flexible use characteristics.

[0049] 3、The device of the present application shows wide applicability, and the design ingeniously combines the telescopic top pressing support mechanism 102 and the telescopic fixing mechanism 103, which can flexibly adapt to different sizes of the hole for hanging objects, thereby effectively meeting the maintenance needs of various types of units.

[0050] It should be noted that the above examples are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A load hoisting device designed for a water turbine hoistway, characterized in that: The utility model relates to a spider hoist (200) fixedly arranged on the other side of the bearing platform (100). The bearing platform (100) comprises a platform bearing mechanism (101), a telescopic top pressing support mechanism (102), a telescopic fixing mechanism (103) and a turnover bearing mechanism (104), the telescopic top pressing support mechanism (102) is closely combined with the inner wall of one side of the hoist hole channel (300), the telescopic fixing mechanism (103) is fixed on both sides of the inner wall of the hoist hole channel (300), and the turnover bearing mechanism (104) is fixedly arranged on both sides of the platform bearing mechanism (101). The platform bearing mechanism (101) comprises a platform (101a) and a reinforcing beam (101b), both ends of the reinforcing beam (101b) are fixedly connected with the bottom of the platform (101a) and the inner wall of the hoist hole channel (300) respectively. The telescopic top pressing support mechanism (102) comprises a fixed mounting assembly (102a), a sliding assembly (102b) and a driving assembly (102c), the fixed mounting assembly (102a) is fixedly arranged on one side of the bearing platform (100), the sliding assembly (102b) is fixedly arranged on one side of the fixed mounting assembly (102a), and the driving assembly (102c) is fixedly arranged on one side of the sliding assembly (102b). The sliding assembly (102b) comprises a sliding rail (102b-1), a sliding connecting block (102b-2), an adapter plate (102b-3) and a top pressing plate (102b-4), the sliding rail (102b-1) is screw-connected with the fixed mounting assembly (102a) and the sliding connecting block (102b-2) respectively, one end of the adapter plate (102b-3) is screw-connected with the sliding connecting block (102b-2), and one side of the top pressing plate (102b-4) is screw-connected with the adapter plate (102b-3). The spider hoist (200) is fixedly arranged on the other side of the bearing platform (100).

2. The load lifting device designed for the hoistway of a hydroelectric generating unit according to claim 1, characterized in that: The driving assembly (102c) comprises a front hinge base (102c-1), a power cylinder (102c-2), a rear hinge base (102c-3), a telescopic top pressing mechanism pin shaft (102c-4) and a telescopic top pressing mechanism fixed pin (102c-5), the front end of the power cylinder (102c-2) is rotationally connected with the front hinge base (102c-1) through the telescopic top pressing mechanism pin shaft (102c-4) and the telescopic top pressing mechanism fixed pin (102c-5), the rear end of the power cylinder (102c-2) is rotationally connected with the rear hinge base (102c-3) through the telescopic top pressing mechanism pin shaft (102c-4) and the telescopic top pressing mechanism fixed pin (102c-5), the front hinge base (102c-1) is screw-connected with the sliding connecting block (102b-2), and the rear hinge base (102c-3) is screw-connected with the fixed mounting assembly (102a).

3. The load hoisting arrangement designed for the hoistway of a hydroelectric generating unit as claimed in claim 2, characterized in that: The telescopic fixing mechanism (103) comprises a wall fixing block (103a) and a telescopic rod (103b), the wall fixing block (103a) is bolted with the telescopic rod (103b), and the telescopic rod (103b) is slidingly matched with one end of the platform (101a).

4. The load lifting device designed for the hoistway of a hydroelectric generating unit according to claim 3, characterized in that: The turnover bearing mechanism (104) comprises a front turnover mechanism (104a), a rear turnover mechanism (104b) and a pipe-passing rear turnover mechanism (104c), and the front turnover mechanism (104a), the rear turnover mechanism (104b) and the pipe-passing rear turnover mechanism (104c) are rotationally connected through a turnover pin shaft (104d) and a turnover fixing pin (104e) to be turned over.

5. The load lifting device designed for the hoistway of a hydroelectric generating unit according to claim 4, characterized in that: One side end surface of the platform (101a) is provided with a butt joint track (101a-1) for connecting other transportation mechanisms.

6. The load lifting device designed for the hoistway of a hydroelectric generating unit according to claim 5, characterized in that: The spider crane (200) comprises a track disc (201), a support arm (202) and a main hoist arm (203) fixedly arranged on the track disc (201), and the support arm (202) is provided with at least four support arms to ensure safety and stability.

7. A method of designing a load hoisting device for a water turbine hoistway, characterized by: The method is suitable for the object lifting device designed for the object lifting hole of the hydroelectric generating set as claimed in any one of claims 1-6, and the method comprises: Connecting the telescopic top pressing support mechanism (102) and the telescopic fixing mechanism (103) with the object lifting hole channel (300) respectively; Flattening the platform (101a) completely through the turnover bearing mechanism (104); Moving the material to be transferred onto the platform (101a); Using the spider crane (200) to lift the material out of the object lifting hole channel (300).

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