Dismounting device for lower oil groove shell of vertical water turbine

Abstract

The utility model provides a vertical water turbine lower oil groove shell disassembling device which comprises a base, a lifting push rod arranged in the middle of the base, a disassembling support arranged at the top end of the lifting push rod, a plurality of rotatable sleeves symmetrically arranged at the top of the disassembling support, a plurality of side plates arranged on the periphery of the base, and an oil collecting groove defined by the side plates. An oil discharging opening is formed in a side plate on one side of the oil collecting groove, a plurality of rolling wheels are arranged at the bottom of the base, the oil collecting groove is used for collecting dripping waste oil, when a suspension type end cover dismounting mode is used, the lower oil groove shell can be placed on the top of the lifting push rod, manual hand holding is not needed, it can be guaranteed that a suspension rod is dismounted at the same time, and the dismounting efficiency is improved. The suspension rod is prevented from deforming due to the heavy lower oil groove shell, secondary use is prevented from being affected, the maintenance convenience of the lower oil groove is improved, and the maintenance efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of water turbine overhauls, in particular to a vertical water turbine lower oil tank shell dismounting device. BACKGROUND

[0002] The lower oil tank shell is a ring structure with an internal cavity and an open upper end, which is installed in the lower wind tunnel of the vertical water turbine generator.

[0003] The outer peripheral wall of the upper end of the lower oil tank shell is integrally formed with a connecting ring, the connecting ring is provided with a mounting hole penetrating in the up-down direction, and a plurality of mounting holes are sequentially and spaced apart along the circumference of the lower oil tank shell; a mounting screw is inserted through the mounting hole from bottom to top, and the mounting screw is threadedly connected with the threaded hole on the lower surface of the lower rack of the vertical water turbine generator to fix the lower oil tank shell to the lower rack and seal the oil cavity inside the lower rack. When the lower oil tank shell needs to be dismounted, the space inside the lower wind tunnel is narrow, and it is difficult to build a lifting platform, so during the process of dismounting the screws for fixing the lower oil tank shell, multiple people need to work together to hold the lower oil tank shell; after all the screws are removed, the lower oil tank shell is slowly moved downward and placed on the prepared cushion block.

[0004] A suspension type dismounting device is designed in the Chinese patent "CN221338406U A vertical water turbine generator lower oil tank shell dismounting tool", but in actual application, it is difficult to ensure that multiple suspension rods are dismounted simultaneously through manual operation. If one of the suspension rods is dismounted first, the heavy lower oil tank shell needs to be held by the maintenance personnel while dismounting the suspension rod, and the suspension rod is prone to deformation during operation.

[0005] According to the related technology, the size and weight of the lower oil tank shell are large, which makes the dismounting or mounting operation of the lower oil tank shell more laborious, and thus needs to be improved. UTILITY MODEL CONTENTS

[0006] The main purpose of the utility model is to provide a vertical water turbine lower oil tank shell dismounting device, which solves the problem that the suspension rod cannot be dismounted synchronously and the heavy lower oil tank shell causes the suspension rod to deform in the background technology.

[0007] To solve the above technical problems, the utility model adopts the technical scheme of a vertical water turbine lower oil tank shell dismounting device, which comprises a base, a lifting push rod is arranged in the middle of the base, a dismounting bracket is arranged at the top end of the lifting push rod, a plurality of rotatable sleeves are symmetrically arranged on the top of the dismounting bracket;

[0008] A plurality of edge plates are arranged around the base, the edge plates form an oil collecting groove, an oil outlet is arranged on one side plate of the oil collecting groove, a plurality of rollers are arranged at the bottom of the base, and the oil collecting groove is used for collecting waste oil.

[0009] In a preferred embodiment, the lifting push rod is a multi-stage telescopic lifting rod.

[0010] In a preferred embodiment, the dismounting support comprises a lifting support, a rotating support is arranged above the lifting support, and a motor is arranged between the rotating support and the lifting support.

[0011] In a preferred embodiment, the output shaft end of the motor is provided with a plurality of driving wheels.

[0012] The sleeve comprises a sleeve base, the sleeve base is rotationally connected between the rotating support, and a transmission part is further arranged below the sleeve base.

[0013] In a preferred embodiment, the driving wheels of one layer are in transmission connection with the transmission part on one side, and the driving wheels of another layer are in transmission connection with the transmission part on the other side.

[0014] The transmission parts on the two sides are symmetrically arranged on the rotating support.

[0015] In a preferred embodiment, the upper edge of the sleeve base is provided with a plurality of clamping grooves.

[0016] The vertical water turbine lower oil tank shell dismounting device has the following beneficial effects: when a suspension type end cover dismounting mode is used, the device can place the lower oil tank shell on the top of the lifting push rod, manual holding is not needed, and the suspension rod can be simultaneously dismounted, so that deformation of the suspension rod caused by the heavy lower oil tank shell is avoided, secondary use is affected, the convenience of lower oil tank maintenance is improved, and the maintenance efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described in connection with the drawings and embodiments:

[0018] Figure 1 is the shaft side view of the dismounting device of the utility model;

[0019] Figure 2 is the shaft side view of the lower oil tank shell of the utility model;

[0020] Figure 3 is the operation schematic view of the dismounting device of the utility model;

[0021] Figure 4 is the partial view of the sleeve of the utility model;

[0022] Figure 5 is the front view of the dismounting lower oil tank shell of the utility model;

[0023] Figure 6 is the partial view of the connecting screw rod of the utility model;

[0024] Figure 7 is the partial sectional view of the sleeve of the utility model;

[0025] In the diagram: Base 1; Side plate 101; Handrail 102; Roller 103; Oil drain port 104; Lifting push rod 2; Disassembly bracket 3; Lifting support 301; Rotating bracket 302; Motor 303; Drive wheel 304; Sleeve 4; Slot 401; Sleeve base 402; Transmission part 403; Lower oil tank housing 5; Connecting screw 6; Limiting boss 601; Threaded part 602; Connecting screw 7; Operating lever 701. Detailed Implementation

[0026] Example 1

[0027] like Figures 1-7 As shown, a vertical turbine lower oil tank shell disassembly device includes a base 1, a lifting push rod 2 in the middle of the base 1, a disassembly bracket 3 at the top of the lifting push rod 2, and a plurality of rotatable sleeves 4 symmetrically arranged at the top of the disassembly bracket 3.

[0028] The base 1 is surrounded by multiple side plates 101, which form an oil collection trough. One side plate 101 of the oil collection trough is provided with an oil discharge port 104. The bottom of the base 1 is provided with multiple rollers 103. The oil collection trough is used to collect dripping waste oil.

[0029] In the preferred embodiment, the lifting push rod 2 is a multi-stage telescopic lifting rod.

[0030] In the preferred embodiment, the disassembly bracket 3 includes a lifting support 301, a rotating support 302 is provided above the lifting support 301, and a motor 303 is provided between the rotating support 302 and the lifting support 301.

[0031] In the preferred embodiment, the output shaft end of the motor 303 is provided with a multi-layer drive wheel 304;

[0032] The sleeve 4 includes a sleeve base 402, which is rotatably connected to the rotating bracket 302. A transmission part 403 is also provided below the sleeve base 402.

[0033] In a preferred embodiment, the driving wheel 304 of one layer is connected to the transmission part 403 on one side, and the driving wheel 304 of the other layer is connected to the transmission part 403 on the other side.

[0034] The transmission parts 403 on both sides are symmetrically arranged on the rotating bracket 302.

[0035] In the preferred embodiment, the upper edge of the sleeve base 402 is provided with multiple slots 401.

[0036] The detailed use mode of the vertical water turbine lower oil tank shell dismounting device is as follows: the maintenance personnel place the connecting screw rod 6 into the threaded hole of the lower oil tank, the upper end of the connecting screw rod 6 is provided with a threaded part 602, a limiting boss 601 is arranged below the threaded part 602, the threaded part 602 is placed into the threaded hole of the lower oil tank, the limiting boss 601 ensures that the depths of the connecting screw rod 6 inserted into the threaded holes of the lower oil tank on the two opposite sides are consistent, and also ensures that the orientations of the operating rods 701 are consistent, then the butt joint screw rod 7 is connected below the connecting screw rod 6, the operating rod 701 is arranged below the butt joint screw rod 7, and the operating rod 701 is perpendicular to the butt joint screw rod 7;

[0037] After the connection is completed in the mode of the patent CN221338406U, the maintenance personnel can start to dismount the screws of the remaining lower oil tank shell 5, the lower oil tank shell 5 slides downward after the screws are dismounted, at this time, the maintenance personnel withdraws, places the dismounting device below the lower oil tank shell 5, starts the lifting push rod 2, and makes the sleeve 4 rise upward, the clamping groove 401 on the sleeve 4 is aligned with the operating rod 701, and the operating rod 701 is clamped, the sleeve 4 is rotated by starting the motor 303, the two sleeves 4 are synchronously rotated, the connecting screw rod 6 is dismounted, when the connecting screw rod 6 is separated from the lower oil tank, the butt joint screw rod 7 abuts against the sleeve 4, the lifting push rod 2 is lowered to the lowest, the maintenance personnel moves the dismounting device to other positions and places it, in the dismounting process, the waste oil dripping is stored in the oil collecting groove, and the waste oil can be discharged from the oil discharge port 104 to the waste oil collecting device.

[0038] The above embodiment is only a preferred technical solution of the utility model, and should not be regarded as a limitation of the utility model, the protection scope of the utility model should be the technical solution recorded in the claims, and the equivalent replacement solution of the technical features recorded in the claims is the protection scope. That is, the equivalent replacement improvement in this range is also within the protection scope of the utility model.

Claims

1. A disassembly device for the lower oil tank shell of a vertical water turbine, characterized in that: Including base (1), the middle of base (1) is equipped with lifting push rod (2), the top of lifting push rod (2) is equipped with dismounting support (3), the top of dismounting support (3) is symmetrically equipped with multiple rotatable sleeves (4); The periphery of base (1) is equipped with multiple edge plates (101), and the edge plates (101) enclose an oil collecting groove, one side edge plate (101) of the oil collecting groove is equipped with an oil outlet (104), and the bottom of base (1) is equipped with multiple rollers (103), and the oil collecting groove is used for collecting waste oil.

2. The device for disassembling the oil sump shell of a vertical hydraulic turbine according to claim 1, characterized in that: Lifting push rod (2) is a multi-stage telescopic lifting rod.

3. The device according to claim 1, characterized in that it comprises: Dismounting support (3) includes lifting support (301), and the upper side of lifting support (301) is equipped with rotating support (302), and motor (303) is arranged between rotating support (302) and lifting support (301).

4. The device according to claim 3, characterized in that: The output shaft end of motor (303) is equipped with multiple driving wheels (304). Sleeve (4) includes sleeve base (402), and sleeve base (402) is rotatably connected with rotating support (302), and transmission part (403) is further arranged below sleeve base (402).

5. The device for disassembling the oil sump shell of a vertical hydraulic turbine according to claim 4, characterized in that: One layer of driving wheel (304) is in transmission connection with one side transmission part (403), and the other layer of driving wheel (304) is in transmission connection with the other side transmission part (403). The two sides transmission part (403) is symmetrically arranged on rotating support (302). The upper edge of sleeve base (402) is equipped with multiple clamping grooves (401).

6. The device for disassembling the oil sump shell of a vertical hydraulic turbine according to claim 4, characterized in that: ​

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