Hydraulic lifting device for generator stator

Abstract

The utility model provides a hydraulic hoisting device for a generator stator, relates to the technical field of hoisting devices, and aims to solve the problems that the stator is easy to incline due to various factors such as installation accuracy in the actual hoisting process, the device is inconvenient to adjust the hoisted stator according to the actual situation, and the hoisting efficiency is high. The device for fixing the gradienter on the stator comprises a lifting frame and the stator. Lifting seats are fixedly installed at the two ends of the top of the lifting frame respectively, a set of connecting seats are installed at the two ends of the lifting frame respectively in a threaded mode, limiting blocks at the outer ends of side frames are installed on limiting grooves of a main frame in an inserted mode, and a gradienter is installed at the outer end of the main frame in a clamped mode. According to the utility model, the stator during hoisting can be conveniently adjusted as required, so that the hoisting and mounting safety of the device is improved, the hoisting inclination angle of the stator can be conveniently monitored in real time through the gradienter, and the functionality of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lifting devices, and more specifically, relates to a hydraulic lifting device for a generator stator. Background Art

[0002] The steam turbine generator stator, a core component, generally weighs over 300 tons and is undoubtedly a heavyweight in power facility construction, playing a vital role in the entire installation and construction process. Given its large size and crucial position, power construction engineering units generally regard its lifting operations as a major engineering task and strictly incorporate it into special major lifting plan planning. To ensure that this behemoth can be safely and accurately positioned, a hydraulic lifting device designed specifically for generator stators is required.

[0003] When using existing hydraulic lifting devices for generator stators, the stator is often prone to tilting during the actual lifting process due to various factors such as installation accuracy and the complexity of the on-site environment. The device is difficult to adjust the stator in a timely and effective manner according to the actual needs of the lifting site, and the device is not convenient for quickly fixing the spirit level on the stator. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a hydraulic lifting device for a generator stator to solve the problems that similar existing stators are easily tilted during the actual lifting process due to various factors such as installation accuracy, the device is not convenient for adjusting the stator during lifting according to actual needs, and the device is not convenient for quickly fixing the spirit level on the stator.

[0005] The hydraulic lifting device for the generator stator of the utility model is achieved by the following specific technical means:

[0006] A hydraulic lifting device for a generator stator, comprising a lifting frame and a stator;

[0007] The top two ends of the lifting frame are respectively fixed with a lifting seat, and the two ends of the lifting frame are respectively threaded with a group of connecting seats, and a group of limited sliding grooves are opened on the connecting seats. The bottom of the lifting frame is connected to a group of mounting frames through telescopic ropes, and the lifting connecting rope loops are clamped and installed in the limited sliding grooves of the connecting seats, and the bottoms of the two groups of lifting connecting rope loops are sleeved and installed on the stator. The mounting frame is clamped and installed on the outer end of the stator. The mounting frame consists of a main frame and a side frame. The main frame is clamped and installed on the outer end of the side frame. A limiting groove is opened at the inner end of the main frame. A limiting block is slidably installed on the outer end of the side frame, and the limiting block at the outer end of the side frame is plugged and installed on the limiting groove of the main frame. The outer end of the main frame is clamped and installed with a spirit level.

[0008] In at least some embodiments, a group of mounting grooves are opened at the outer end of the main frame, a mounting block is fixedly installed on the level, and the mounting block on the level is snap-fitted and installed on the mounting grooves at the outer end of the main frame, and a group of fixing screws are also threadedly installed on the outer end of the mounting grooves.

[0009] In at least some embodiments, a support plate is fixedly mounted on the side frame, a sliding hole is opened on the support plate, a connecting rod is fixedly mounted on the outer end of the limit block, and the connecting rod at the outer end of the limit block is slidably mounted on the sliding hole of the support plate.

[0010] In at least some embodiments, a group of adjustment screws are rotatably installed on the left and right ends of the lifting frame, and a group of motors are fixedly installed on the left and right ends of the lifting frame. The top of the adjustment screw is fixedly installed on the transmission shaft of the motor, and a threaded hole is opened on the connecting seat, and the threaded hole on the connecting seat is threadedly installed on the adjustment screws on the left and right ends of the lifting frame.

[0011] In at least some embodiments, a group of elastic members are sleeved and mounted on the connecting rod at the outer end of the limit block, and the outer ends of the elastic members are in contact with the inner end surfaces of the support plates on the side frames.

[0012] In at least some embodiments, two groups of plug rods are fixedly installed on the upper and lower ends of the main frame, two groups of positioning grooves are respectively opened on the upper and lower ends of the side frame, and the plug rods at the upper and lower ends of the main frame are respectively inserted into the positioning grooves of the side frame.

[0013] In at least some embodiments, three groups of fixing rods are fixedly installed on the left and right ends of the lifting frame respectively, three groups of guide holes are opened on the connecting seat, and the three groups of guide holes on the connecting seat are slidably installed on the fixing rods on the left and right ends of the lifting frame respectively.

[0014] Compared with the prior art, the hydraulic lifting device for a generator stator of the utility model has the following beneficial effects:

[0015] The setting of the spirit level in conjunction with the connecting seat is conducive to the rapid connection of the spirit level to the special mounting slot at the outer end of the main frame through its mounting block, and the firm locking is achieved with the help of the fixing screw at the outer end of the mounting slot, thereby simplifying the disassembly and assembly process of the spirit level and improving working efficiency; at the same time, the spirit level can monitor and record the inclination angle of the stator during the hoisting process in real time, providing key data support for precise control; the three sets of guide holes of the connecting seat form a sliding fit with the fixed rods at the left and right ends of the lifting frame, and its threaded hole is threadedly connected to the adjusting screw. When the motor drives the adjusting screw to rotate, the connecting seat can move vertically along the adjusting screw, thereby realizing precise control of the hoisted stator; greatly improving the adaptability and safety of the device in hoisting operations. The setting of the mounting frame is conducive to fixing the inner ends of the main frame and the side frame on the stator by means of a snap-on connection, and the connecting rod at the outer end of the limit block is slidably installed in the sliding hole of the support plate; during operation, the operator only needs to pull the limit block outward to insert the insertion rods at the upper and lower ends of the main frame into the positioning grooves of the side frame; after the main frame moves to the predetermined position, the limit block is released, and under the rebound action of the elastic part on the connecting rod, the limit block at the outer end of the side frame is automatically snapped into the limit groove of the main frame, thereby realizing rapid and accurate positioning and installation of the mounting frame and the spirit level thereon; the installation process is simplified, ensuring that the spirit level can monitor the tilt angle of the stator in real time during the lifting process, and effectively improving the overall function and operating efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front side shaft type schematic diagram of the present utility model.

[0017] Figure 2 It is a disassembly schematic diagram of the utility model.

[0018] Figure 3 It is a schematic diagram of the installation of the connecting seat of the utility model.

[0019] Figure 4 It is a schematic diagram of disassembly and assembly of the mounting bracket of the utility model.

[0020] Figure 5 It is a partial cross-sectional schematic diagram of the side frame of the present utility model.

[0021] Figure 6 It is a schematic diagram of disassembly and assembly of the level of the present utility model.

[0022] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0023] 1. Lifting frame; 101. Lifting seat; 102. Connecting seat; 1021. Limiting slide groove; 103. Fixing rod; 104. Adjusting screw; 1041. Motor; 105. Telescopic rope; 2. Lifting connecting rope sleeve; 3. Stator; 4. Mounting frame; 401. Main frame; 4011. Insert rod; 4012. Limiting groove; 4013. Mounting groove; 4014. Fixing screw; 402. Side frame; 4021. Positioning groove; 4022. Support plate; 4023. Limiting block; 4024. Connecting rod; 4025. Elastic part; 5. Level. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples.

[0025] As attached Figure 1 To the attached Figure 6 As shown:

[0026] Embodiment 1: The present invention provides a hydraulic lifting device for a generator stator, comprising a lifting frame 1 and a stator 3;

[0027] The top two ends of the lifting frame 1 are fixedly installed with a lifting seat 101, and the two ends of the lifting frame 1 are respectively threaded with a group of connecting seats 102. A group of limited sliding grooves 1021 are opened on the connecting seat 102. The bottom of the lifting frame 1 is connected to a group of mounting brackets 4 through a telescopic rope 105. The limited sliding grooves 1021 of the connecting seat 102 are clamped and installed with a lifting connecting rope loop 2, and the bottoms of the two groups of lifting connecting rope loops 2 are sleeved and installed on the stator 3. The mounting brackets 4 is snap-fitted and installed on the outer end of the stator 3. The mounting frame 4 is composed of a main frame 401 and a side frame 402. The main frame 401 is snap-fitted and installed on the outer end of the side frame 402. A limiting groove 4012 is provided at the inner end of the main frame 401. A limiting block 4023 is slidably installed on the outer end of the side frame 402, and the limiting block 4023 at the outer end of the side frame 402 is plugged and installed on the limiting groove 4012 of the main frame 401. A level 5 is snap-fitted and installed on the outer end of the main frame 401.

[0028] like Figures 2 to 6As shown, three groups of fixing rods 103 are fixedly installed on the left and right ends of the lifting frame 1, three groups of guide holes are opened on the connecting seat 102, and the three groups of guide holes on the connecting seat 102 are slidably installed on the fixing rods 103 on the left and right ends of the lifting frame 1, and a group of adjusting screws 104 are rotatably installed on the left and right ends of the lifting frame 1, and a group of motors 1041 are fixedly installed on the left and right ends of the lifting frame 1, and the top of the adjusting screw 104 is fixedly installed on the transmission shaft of the motor 1041, threaded holes are opened on the connecting seat 102, and the threaded holes on the connecting seat 102 are threadedly installed on the adjusting screws 104 on the left and right ends of the lifting frame 1, a group of mounting grooves 4013 are opened on the outer end of the main frame 401, a mounting block is fixedly installed on the spirit level 5, and the mounting block on the spirit level 5 is snap-fitted to the mounting groove 4013 at the outer end of the main frame 401, and the mounting groove 4013 The outer end is also threaded with a set of fixing screws 4014; specifically, the mounting block on the spirit level 5 is snap-fitted and mounted on the mounting slot 4013 at the outer end of the main frame 401, and is fixed by the fixing screw 4014 at the outer end of the mounting slot 4013, so that the device can facilitate quick disassembly and assembly of the spirit level 5, and the spirit level 5 can monitor the inclination angle of the stator 3 in real time, and the three sets of guide holes on the connecting seat 102 are respectively slidably mounted on the fixing rods 103 at the left and right ends of the lifting frame 1, and the threaded holes on the connecting seat 102 are threadedly mounted on the adjustment screws 104 at the left and right ends of the lifting frame 1, and the motor 1041 drives the adjustment screw 104 to rotate, so as to drive the connecting seat 102 threadedly mounted on the adjustment screw 104 to adjust the height, so that the device can be conveniently adjusted to the stator 3 during lifting as needed, thereby improving the safety of the lifting and installation of the device.

[0029] Example 2: Based on Example 1, Figure 4 and Figure 5As shown, two groups of plug rods 4011 are fixedly installed on the upper and lower ends of the main frame 401, and two groups of positioning grooves 4021 are respectively opened at the upper and lower ends of the side frame 402, and the plug rods 4011 at the upper and lower ends of the main frame 401 are respectively inserted and installed in the positioning grooves 4021 of the side frame 402, and a support plate 4022 is fixedly installed on the side frame 402, and a sliding hole is opened on the support plate 4022. The outer end of the limit block 4023 is fixedly installed with a connecting rod 4024, and the connecting rod 4024 at the outer end of the limit block 4023 is slidably installed on the sliding hole of the support plate 4022, and a group of elastic members 4025 are sleeved and installed on the connecting rod 4024 at the outer end of the limit block 4023, and the outer end of the elastic member 4025 contacts the inner end surface of the support plate 4022 on the side frame 402; the specific function is to fix the main frame 401 The inner ends of the side frames 402 are respectively snap-fitted and installed on the stator 3, and the connecting rod 4024 at the outer end of the limit block 4023 is slidably installed on the sliding hole of the support plate 4022. The limit block 4023 is pulled outward, and the insertion rods 4011 at the upper and lower ends of the main frame 401 are respectively inserted and installed in the positioning grooves 4021 of the side frames 402. After the main frame 401 moves to a fixed position, the limit block 4023 is released, and under the action of the elastic member 4025 on the connecting rod 4024, the limit block 4023 at the outer end of the side frame 402 is inserted and installed on the limit groove 4012 of the main frame 401, so that the device can quickly position and install the mounting frame 4 and the level meter 5 thereon on the stator 3, so that the level meter 5 can monitor the lifting tilt angle of the stator 3 in real time, thereby improving the functionality of the device.

[0030] The specific usage and function of this embodiment are as follows:

[0031] When the present invention is in use, the mounting block on the level 5 is snap-fitted and mounted on the mounting slot 4013 at the outer end of the main frame 401, and is fixed by the fixing screw 4014 at the outer end of the mounting slot 4013, so that the device is convenient for quickly disassembling and assembling the level 5, and the level 5 can monitor the inclination angle of the stator 3 in real time, and the motor 1041 drives the adjusting screw 104 to rotate, so as to drive the connecting seat 102 threadedly mounted on the adjusting screw 104 to adjust the height, so that the device is convenient for adjusting the stator 3 during hoisting as needed, thereby improving the safety of the device hoisting installation; the inner ends of the main frame 401 and the side frames 402 are connected to each other. They are respectively snap-fitted and installed on the stator 3, and the limit block 4023 is pulled outward to insert the insertion rods 4011 at the upper and lower ends of the main frame 401 into the positioning grooves 4021 of the side frame 402 respectively. After the main frame 401 moves to a fixed position, the limit block 4023 is released. Under the action of the elastic member 4025 on the connecting rod 4024, the limit block 4023 at the outer end of the side frame 402 is inserted and installed on the limit groove 4012 of the main frame 401, so that the device can quickly position and install the mounting frame 4 and the level 5 thereon on the stator 3, so that the level 5 can monitor the lifting tilt angle of the stator 3 in real time, thereby improving the functionality of the device.

[0032] In this article, there are several points to note:

[0033] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0034] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0035] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A hydraulic lifting device for a generator stator, characterized by: It includes a lifting frame (1) and a stator (3); The top ends of the lifting frame (1) are respectively fixedly mounted with lifting seats (101), the two ends of the lifting frame (1) are respectively threadedly mounted with a set of connecting seats (102), a set of limited sliding grooves (1021) are opened on the connecting seats (102), the bottom of the lifting frame (1) is connected to a set of mounting frames (4) through a telescopic rope (105), the limited sliding grooves (1021) of the connecting seats (102) are clamped and mounted with lifting connecting rope loops (2), and the bottoms of the two sets of lifting connecting rope loops (2) are sleeved and mounted on the stator (3), and the mounting frames (4) are clamped. The mounting frame (4) is mounted on the outer end of the stator (3), and is composed of a main frame (401) and a side frame (402). The main frame (401) is mounted on the outer end of the side frame (402) by snapping. A limiting groove (4012) is provided at the inner end of the main frame (401). A limiting block (4023) is slidably mounted on the outer end of the side frame (402), and the limiting block (4023) at the outer end of the side frame (402) is plugged and mounted on the limiting groove (4012) of the main frame (401). A level (5) is mounted on the outer end of the main frame (401) by snapping.

2. The hydraulic lifting device for a generator stator according to claim 1, characterized in that: Three groups of fixing rods (103) are fixedly installed on the left and right ends of the lifting frame (1), three groups of guide holes are opened on the connecting seat (102), and the three groups of guide holes on the connecting seat (102) are slidably installed on the fixing rods (103) on the left and right ends of the lifting frame (1).

3. The hydraulic lifting device for a generator stator according to claim 1, characterized in that: A group of adjusting screws (104) are rotatably mounted on the left and right ends of the lifting frame (1), and a group of motors (1041) are fixedly mounted on the left and right ends of the lifting frame (1). The top of the adjusting screw (104) is fixedly mounted on the transmission shaft of the motor (1041). A threaded hole is provided on the connecting seat (102), and the threaded hole on the connecting seat (102) is threadedly mounted on the adjusting screws (104) on the left and right ends of the lifting frame (1).

4. The hydraulic lifting device for a generator stator according to claim 1, characterized in that: The outer end of the main frame (401) is provided with a group of mounting grooves (4013), a mounting block is fixedly mounted on the level (5), and the mounting block on the level (5) is snap-fitted and mounted on the mounting groove (4013) at the outer end of the main frame (401), and a group of fixing screws (4014) are also threadedly mounted on the outer end of the mounting groove (4013).

5. The hydraulic lifting device for a generator stator according to claim 1, characterized in that: Two groups of insertion rods (4011) are fixedly installed at the upper and lower ends of the main frame (401), and two groups of positioning grooves (4021) are respectively opened at the upper and lower ends of the side frame (402), and the insertion rods (4011) at the upper and lower ends of the main frame (401) are respectively inserted and installed in the positioning grooves (4021) of the side frame (402).

6. The hydraulic lifting device for a generator stator according to claim 1, characterized in that: A support plate (4022) is fixedly mounted on the side frame (402), a sliding hole is provided on the support plate (4022), a connecting rod (4024) is fixedly mounted on the outer end of the limit block (4023), and the connecting rod (4024) at the outer end of the limit block (4023) is slidably mounted on the sliding hole of the support plate (4022).

7. The hydraulic lifting device for a generator stator according to claim 1, characterized in that: A group of elastic members (4025) is sleeved and mounted on the connecting rod (4024) at the outer end of the limit block (4023), and the outer ends of the elastic members (4025) are in contact with the inner end surfaces of the upper support plates (4022) of the side frames (402).

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