Repair device for sealing groove of guide vane shaft sleeve

Abstract

A repairing device for a guide vane shaft sleeve sealing groove comprises a supporting plate, side plates are fixedly connected to the two ends of the supporting plate, a plurality of positioning screws are connected to the side plates in a threaded mode, a shaft seat is assembled in the center of the supporting plate, a shaft rod is assembled in the shaft seat, the lower end of the shaft rod is fixedly connected to the middle of a sleeve, and oilstones are inserted into the two ends of the sleeve. The sealing groove repairing device is used for solving the problem that the size of a sealing groove is prone to deviation in an existing sealing groove repairing mode.

Description

Technical Field

[0001] The utility model relates to a repairing device for a guide vane shaft sleeve sealing groove. Background Art

[0002] When the turbine is running, river water will penetrate into the guide vane sleeve sealing groove. After the sealing groove contacts the river water, corrosion pits will form in the sealing groove due to rust. These corrosion pits will cause the sealing performance of the sealing groove to deteriorate, allowing river water to penetrate into the gap between the sleeve guide bearings, accelerating the wear of the guide bearings. Therefore, the sealing groove needs to be repaired. The current repair method is to use a boring machine to clean the rust, apply metal repair agent in the sealing groove to fill the removed material, and then use the boring machine for processing again. The above method requires the sleeve to be transported to the machining workshop. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a repair device for the sealing groove of a guide vane shaft sleeve, which is used to solve the problem that the existing sealing groove repair method requires the shaft sleeve to be transported to a machining workshop.

[0004] In order to solve the above problems, the utility model provides a repair device for the guide vane shaft sleeve sealing groove, including a support plate, side plates are fixedly connected at both ends of the support plate, a plurality of positioning screws are threadedly connected to the side plates, a shaft seat is assembled at the center of the support plate, a shaft rod is assembled in the shaft seat, the lower end of the shaft rod is fixedly connected to the middle of the sleeve, and oil stones are inserted at both ends of the sleeve.

[0005] Elastic devices are provided at both ends of the sleeve, and the elastic device includes a push rod and a spring inserted into the sleeve, and also includes a first elastic pin fixedly connected to the sleeve, the two ends of the spring respectively abut against the push rod and the first elastic pin, and a second elastic pin is provided in a slot on the sleeve, and one end of the second elastic pin is connected to the push rod.

[0006] Lifting screws are threadedly connected at both ends of the support plate.

[0007] A hexagonal socket is arranged at the upper end of the shaft rod.

[0008] The beneficial effects of the utility model are as follows: the device can limit the oilstones at both ends of the casing, allowing the oilstones to grind and repair the sealing groove according to the set trajectory, ensuring that the size of the repaired sealing groove will not deviate, and the device has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is further described below in conjunction with the accompanying drawings:

[0010] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0011] Figure 2It is a three-dimensional structural schematic diagram of the utility model.

[0012] Figure 3 This is a schematic diagram of the main structure of the utility model.

[0013] Figure 4 It is a three-dimensional structural schematic diagram of the utility model.

[0014] In the figure: positioning screw 1, side plate 2, support plate 3, shaft rod 4, shaft seat 5, lifting screw 6, first elastic pin 7, sleeve 8, second elastic pin 9, slot 10, oil stone 11, jack 12, push rod 13, spring 14, shaft sleeve 15, sealing groove 16. DETAILED DESCRIPTION

[0015] like Figures 1 to 4 As shown, a repair device for a guide vane shaft sleeve sealing groove comprises a support plate 3, both ends of the support plate 3 are fixedly connected to side plates 2, a plurality of positioning screws 1 are threadedly connected to the side plates 2, a shaft seat 5 is mounted at the center of the support plate 3, a shaft rod 4 is mounted in the shaft seat 5, the lower end of the shaft rod 4 is fixedly connected to the middle of a sleeve 8, and oilstones 11 are inserted at both ends of the sleeve 8.

[0016] Elastic devices are provided at both ends of the sleeve 8, and the elastic device includes a push rod 13 and a spring 14 inserted into the sleeve 8, and also includes a first elastic pin 7 fixedly connected to the sleeve 8. The two ends of the spring 14 respectively abut against the push rod 13 and the first elastic pin 7. A second elastic pin 9 is provided in a slot 10 on the sleeve 8, and one end of the second elastic pin 9 is connected to the push rod 13.

[0017] When in use, place the support plate 3 on the sleeve, and insert one end of the oilstone 11 into the sealing groove, and then adjust the shaft rod 4 to be coaxial with the sleeve through multiple positioning screws 1. At the same time, the oilstone 11 is pushed by the spring 14 to tightly rest against the inner wall of the sealing groove. Then, connect the shaft rod 4 to the electric drill, and drive the oilstones 11 at both ends of the sleeve 8 to rotate in the sealing groove by the electric drill. Use the rotating oilstone 11 to grind the avoidance surface in the sealing groove to remove the corrosion pitting on the inner wall of the sealing groove.

[0018] After the corrosion pits are removed, loosen the positioning screw 1 and pull the second elastic pin 9 inward to compress the spring 14. Then, push the oilstone 11 into the sleeve 8 to move it out of the sealing groove, and finally remove the repair device from the sleeve.

[0019] Then apply a layer of metal repair agent in the sealing groove. Before the metal repair agent dries, use a "convex" scraper to remove excess metal repair agent. After the metal repair agent dries, install a finer oilstone 11 on the repair device, grind the repair agent in the sealing groove according to the above method, and complete the repair of the shaft sleeve sealing groove.

[0020] Lifting screws 6 are threadedly connected at both ends of the support plate 3. The function of the lifting screws 6 is to adjust the height of the two ends of the support plate 3, so as to facilitate the support plate 3 to be adjusted to be parallel to the sealing groove, and also to adjust the upper and lower positions of the oilstone 11 so that it can grind the corners of the sealing groove.

[0021] A hexagonal jack 12 is provided at the upper end of the shaft rod 4. During use, a screw is clamped on the hand drill chuck, and then the screw head is inserted into the hexagonal jack 12 to facilitate the docking of the hand drill with the shaft rod 4.

[0022] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A repair device for a guide vane sleeve sealing groove, characterized in that: The invention comprises a support plate (3), the two ends of the support plate (3) are fixedly connected to the side plate (2), a plurality of positioning screws (1) are threadedly connected to the side plate (2), a shaft seat (5) is installed at the center of the support plate (3), a shaft rod (4) is installed in the shaft seat (5), the lower end of the shaft rod (4) is fixedly connected to the middle of the sleeve (8), and oil stones (11) are inserted into the two ends of the sleeve (8).

2. A repair device for a guide vane sleeve sealing groove according to claim 1, characterized in that: Elastic devices are provided at both ends of the sleeve (8), the elastic devices comprising a push rod (13) and a spring (14) inserted into the sleeve (8), and a first elastic pin (7) fixedly connected to the sleeve (8), the two ends of the spring (14) respectively abutting against the push rod (13) and the first elastic pin (7), a slot hole (10) on the sleeve (8), a second elastic pin (9) being provided in the slot hole (10), and one end of the second elastic pin (9) being connected to the push rod (13).

3. A repair device for a guide vane sleeve sealing groove according to claim 1 or 2, characterized in that: Lifting screws (6) are threadedly connected at both ends of the support plate (3).

4. A repair device for a guide vane sleeve sealing groove according to claim 1 or 2, characterized in that: A hexagonal socket (12) is provided at the upper end of the shaft rod (4).

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