A device for repairing the trunnion hole of a reverse arc valve of a ship lock

Abstract

The utility model provides a device for repairing the trunnion axis hole of a reverse arc valve of a ship lock. A trunnion is provided on the top of the reverse arc gate, and a trunnion axis hole is processed inside the trunnion. The trunnion is welded on the upstream water guide plate of the door leaf of the reverse arc gate. The trunnion axis hole is connected to the suspension rod through a pin shaft, and the reverse arc gate is opened and closed under the action of the hoist. An axis hole repair device for repairing the trunnion axis hole is arranged at the trunnion axis hole of the reverse arc gate. By arranging the axis hole repair device, it is ensured that the repair device and the repair axis hole have high coaxiality, and the severely damaged trunnion axis hole is repaired with high precision. The nesting and positioning pins are installed, and the nesting inner diameter is the same as the original inner diameter of the trunnion axis hole, thereby realizing high-precision and rapid repair of the damaged trunnion axis hole of the reverse arc gate, improving the stress state of the reverse arc gate opening and closing operation, and extending the service life of the reverse arc gate.

Description

Technical Field

[0001] The utility model belongs to the field of ship lock reverse arc door maintenance, in particular to a ship lock reverse arc valve trunnion hole repairing device. Background Art

[0002] The anti-arc gate is a water delivery valve for high-head ship locks. The lock chamber is filled and discharged by opening and closing the anti-arc gate. The anti-arc gate is opened and closed by dynamic water. The working conditions are relatively bad. The ship lock is operated at high load and the anti-arc gate is opened and closed frequently. If the anti-arc gate fails, the faulty anti-arc gate needs to be removed during the operation of the ship lock, and the ship lock is operated in a single-filling or single-discharging mode, which seriously affects the navigation efficiency of the ship lock and causes huge social and economic losses. If the ship lock is operated in a single-filling or single-discharging mode for a long time, there will be certain safety risks.

[0003] When the ship lock reverse arc gate is working, the contact position (stress position) between the wall of the ear shaft hole and the suspension shaft changes with the opening of the reverse arc gate, and under the action of high-speed water flow, the reverse arc gate and the suspension rod will vibrate strongly. Due to the gap between the ear shaft hole and the suspension shaft, the suspension shaft and the wall of the ear shaft hole will inevitably collide, causing the ear hole to deform. After years of frequent operation, the ear shaft hole has become larger and deformed due to continuous rust, wear and collision, and the gap between the ear shaft hole and the suspension shaft has gradually increased. The increase in the gap between the ear shaft hole and the suspension shaft reduces the constraint of the ear plate on the suspension shaft, and the collision between the suspension shaft and the ear shaft hole intensifies, causing destruction or damage to the local structure of the reverse arc gate ear, creating a safety hazard. At the same time, when the gap between the lug plate and the suspension shaft becomes larger, during the operation of the anti-arc gate, the contact position (stress position) between the lug plate and the suspension shaft not only changes with the opening of the anti-arc gate, but also the suspension shaft moves in the lug shaft hole, which affects the shaft end baffle to deform or even fail or damage it, resulting in the accident of the suspension shaft falling off. The falling off of the valve suspension shaft affects the safe operation of the ship lock, and the navigation must be stopped for inspection and replacement. If it falls off frequently, it will seriously affect the navigation efficiency of the ship lock and even cause safety accidents.

[0004] The continuous wear and deformation of the ear holes of the ear plates will inevitably affect the normal operation of the reverse arc gates. Although there are precedents for the overall replacement of the reverse arc gates, the reverse arc gates have only been in operation for more than ten years. The main structure of the reverse arc gates is generally good and there are many of them. It is a large project to replace them as a whole, which is not economical and unnecessary. It is feasible and reasonable to carry out local repair and optimization of the ear holes of the reverse arc gates. Therefore, in order to solve the serious problems of damage to the ear holes of the reverse arc gates of the ship locks and the serious enlargement of the aperture, the utility model provides a reverse arc valve ear shaft hole repair device and repair method, which can realize the reverse arc gate in the original position, repair the ear shaft hole, and eliminate equipment hidden dangers. Utility Model Content

[0005] In order to solve the problem of continuous wear and deformation of the ear holes of the ear plates of the reverse arc gates of ship locks, the utility model proposes a device and a method for repairing the ear shaft holes of the reverse arc valves of ship locks. By arranging the shaft hole repairing device, it is ensured that the repairing device and the repair shaft hole have high coaxiality, the severely damaged ear shaft holes are repaired with high precision, and the nesting and positioning pins are installed. The inner diameter of the nesting is the same as the original inner diameter of the ear shaft hole, thereby realizing high-precision and rapid repair of the damaged ear shaft holes of the reverse arc gates, improving the stress state of the reverse arc gates during opening and closing, and extending the service life of the reverse arc gates.

[0006] In order to realize the above-mentioned technical features, the purpose of the utility model is realized as follows: a device for repairing the lifting ear axis hole of a reverse arc valve of a ship lock, comprising a reverse arc gate, a lifting ear is arranged on the top of the reverse arc gate, a lifting ear axis hole is processed inside the lifting ear, the lifting ear is welded to the upstream water guide plate of the door leaf of the reverse arc gate, the lifting ear axis hole is connected to the suspension rod through a pin shaft, and the opening and closing action of the reverse arc gate is realized under the action of a hoist; an axis hole repairing device for repairing the lifting ear axis hole is arranged at the lifting ear axis hole of the reverse arc gate.

[0007] The shaft hole repair equipment includes a combined bracket, on which a boring bar is supported and installed through a sliding bearing seat. The boring bar is connected to a power device for driving its rotation, and a tool for cutting processing is installed on the boring bar; the power device is installed on a feed device for driving it to move axially along the ear shaft hole.

[0008] The combined bracket includes a bottom bracket, a U-shaped plate and a boring bar fixing plate; the bottom bracket is fixed on the upstream water guide plate of the door leaf, a transverse elliptical mounting hole is processed on the bottom bracket, the U-shaped plate is fixedly mounted on the transverse elliptical mounting hole by bolts, a longitudinal elliptical mounting hole is processed on the U-shaped plate, and the boring bar fixing plate is fixedly mounted on the longitudinal elliptical mounting hole by bolts.

[0009] The power device comprises a servo main motor, the output shaft of the servo main motor is connected to the main shaft of a planetary reducer, and the output shaft of the planetary reducer is connected to the boring bar.

[0010] The feeding device includes a power box, which is fixedly mounted on the reverse arc door. The output shaft of the power box is connected to the feed screw, and the feed screw is rotatably supported on the reverse arc door through a screw bearing seat. A feed nut seat is installed on the feed screw through a screw transmission, and the servo main motor of the power device is fixedly mounted on the outer wall of the feed nut seat.

[0011] The utility model has the following beneficial effects:

[0012] 1. The utility model arranges shaft hole repair equipment to ensure high coaxiality between the repair equipment and the repair shaft hole, repairs severely damaged hanging ear shaft holes with high precision, installs nesting and positioning pins, and the nesting inner diameter is the same as the original inner diameter of the hanging ear shaft hole, thereby realizing high-precision and rapid repair of damaged hanging ear shaft holes of the reverse arc door, improving the stress state of the reverse arc door during opening and closing operation, and extending the service life of the reverse arc door.

[0013] 2. The above-mentioned shaft hole repairing equipment can be used to repair the lug shaft hole. During the working process, the boring bar is driven by the power device, the boring bar drives the tool to cut the lug shaft hole, and the boring bar is synchronously driven by the feeding device to move axially.

[0014] 3. The above-mentioned transverse elliptical mounting holes and longitudinal elliptical mounting holes facilitate the adjustment of the mounting position of the boring bar fixing plate, thereby ensuring the coaxiality between the boring bar and the trunnion hole, thereby ensuring the repair accuracy.

[0015] 4. The above-mentioned power device can be used to provide cutting power. During the working process, the servo main motor drives the planetary reducer, the planetary reducer drives the boring bar, and then the boring bar drives the tool to achieve cutting action.

[0016] 5. The above-mentioned feeding device can be used to provide feeding action during the cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 This is the overall installation structure diagram of the utility model.

[0019] Figure 2 For this utility model Figure 1 Partial diagram of the repaired equipment.

[0020] Figure 3 It is a side view of the combined bracket of the utility model.

[0021] In the figure: anti-arc door 1, lifting ear 2, lifting ear shaft hole 3, door leaf upstream water guide plate 4, pin shaft 5, hanging rod 6, shaft hole repair equipment 7, combined bracket 8, boring rod 9, sliding bearing seat 10, servo main motor 11, planetary reducer 12, feed nut seat 13, feed screw 14, power box 15, bottom bracket 16, U-shaped plate 17, boring rod fixing plate 18, screw bearing seat 19, longitudinal elliptical mounting hole 20, transverse elliptical mounting hole 21. DETAILED DESCRIPTION

[0022] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0023] Embodiment 1:

[0024] like Figure 1-3 As shown, a device for repairing the trunnion axis hole of a reverse arc valve of a ship lock comprises a reverse arc gate 1, a trunnion 2 is arranged on the top of the reverse arc gate 1, a trunnion axis hole 3 is processed inside the trunnion 2, the trunnion 2 is welded on the upstream water guide plate 4 of the door leaf of the reverse arc gate 1, the trunnion axis hole 3 is connected to the suspension rod 6 through the pin 5, and the reverse arc gate 1 is opened and closed under the action of the hoist; the trunnion axis hole 3 of the reverse arc gate 1 is provided with an axis hole repair device 7 for repairing the trunnion axis hole. By adopting the axis hole repair device 7 of the utility model, it can be used to repair the worn trunnion axis hole 3, and after the repair, the nesting and positioning pins are installed, and the nesting inner diameter is the same as the original inner diameter of the trunnion axis hole, so as to realize the high-precision and rapid repair of the damaged trunnion axis hole of the reverse arc gate, improve the stress state of the reverse arc gate opening and closing operation, and extend the service life of the reverse arc gate.

[0025] Moreover, by adopting the shaft hole repairing equipment of the utility model, convenient and fast installation can be achieved during the repair process, and the installation and repair process will not damage the reverse arc gate body and accessories. For the first time, a repair process for the shaft hole of the reverse arc valve lifting ear of the lock was formulated, ensuring the safety and efficiency of the lifting ear hole repair construction.

[0026] Furthermore, the shaft hole repairing device 7 includes a combined bracket 8, on which a boring bar 9 is supported and installed through a sliding bearing seat 10, the boring bar 9 is connected to a power device for driving the boring bar 9 to rotate, and a tool for cutting is installed on the boring bar 9; the power device is installed on a feed device for driving the boring bar 9 to move axially along the trunnion shaft hole 3. The above-mentioned shaft hole repairing device 7 can repair the trunnion shaft hole 3. During the working process, the boring bar 9 is driven by the power device, and the boring bar 9 drives the tool to cut the trunnion shaft hole 3, and the boring bar 9 is synchronously driven by the feed device to move axially.

[0027] Furthermore, the combined bracket 8 includes a bottom bracket 16, a U-shaped plate 17 and a boring bar fixing plate 18; the bottom bracket 16 is fixed on the upstream water guide plate 4 of the door leaf, a transverse elliptical mounting hole 21 is processed on the bottom bracket 16, the U-shaped plate 17 is fixedly mounted on the transverse elliptical mounting hole 21 by bolts, a longitudinal elliptical mounting hole 20 is processed on the U-shaped plate 17, and the boring bar fixing plate 18 is fixedly mounted on the longitudinal elliptical mounting hole 20 by bolts. The transverse elliptical mounting hole 21 and the longitudinal elliptical mounting hole 20 facilitate the adjustment of the mounting position of the boring bar fixing plate 18, thereby ensuring the coaxiality between the boring bar 9 and the trunnion hole 3, thereby ensuring the repair accuracy.

[0028] Furthermore, the power device includes a servo main motor 11, the output shaft of the servo main motor 11 is connected to the main shaft of the planetary reducer 12, and the output shaft of the planetary reducer 12 is connected to the boring bar 9. The above power device can be used to provide cutting power. During the working process, the servo main motor 11 drives the planetary reducer 12, the planetary reducer 12 drives the boring bar 9, and then the boring bar 9 drives the tool to achieve the cutting action.

[0029] Furthermore, the feeding device includes a power box 15, the power box 15 is fixedly mounted on the anti-arc door 1, the output shaft of the power box 15 is connected to the feed screw 14, the feed screw 14 is rotatably supported on the anti-arc door 1 through the screw bearing seat 19, the feed screw 14 is equipped with a feed nut seat 13 through a screw transmission, and the servo main motor 11 of the power device is fixedly mounted on the outer wall of the feed nut seat 13. The above-mentioned feeding device can be used to provide a feeding action during the cutting process. During the working process, the feed screw 14 is driven by the power box 15, the feed nut seat 13 is driven by the feed screw 14, the power device is driven to move axially by the feed nut seat 13, and then the boring bar 9 is driven to move axially by the power device.

[0030] Embodiment 2:

[0031] A method for repairing a trunnion hole of a reverse arc-shaped valve of a ship lock, using the repair device for repair, comprises the following steps:

[0032] Step 1, preparation before maintenance:

[0033] Lower the inspection plate door, close all valves, and drain the valve well;

[0034] Step 2, removal of pin 5:

[0035] Remove the pin shaft 5 so that the suspension rod 6 is disengaged from the suspension ear shaft hole 3 of the reverse arc door 1;

[0036] Step 3, temporary fixation of the combined bracket 8:

[0037] Fix the combined bracket 8 on the reverse arc door 1;

[0038] Step 4, position adjustment of the combined bracket 8:

[0039] By adjusting the installation positions of the U-shaped plate 17 and the boring bar fixing plate 18, the boring bar installation hole on the boring bar fixing plate 18 is made coaxial with the axis of the trunnion hole 3;

[0040] Step 5, installation of shaft hole repair equipment 7:

[0041] Install the shaft hole repair device 7 on the combined bracket 8 accordingly, and install the power device and the feeding device at the same time;

[0042] Step 6, cutting and repair of the ear shaft hole 3:

[0043] The power device is started, the boring bar 9 is driven by the power device, the tool is driven by the boring bar 9, and the lifting ear shaft hole 3 is cut and repaired, and the feeding device is started synchronously, the boring bar 9 is driven by the feeding device to move axially, and the lifting ear shaft hole 3 is repaired with high precision;

[0044] Step 7, Disassembly of Repaired Device:

[0045] After the damaged part of the trunnion hole 3 is repaired, the entire repair equipment is disassembled;

[0046] Step 8, nested fixed installation:

[0047] After the trunnion shaft hole 3 is repaired, a nesting and a positioning pin are installed in the trunnion shaft hole 3, and the inner diameter of the nesting is the same as the original inner diameter of the trunnion shaft hole 3;

[0048] Step 9, reconnection of the anti-arc door 1:

[0049] After the nesting installation is completed, the suspension rod 6 is matched with the lifting ear 2 again, and the pin 5 is passed through the nesting inside to complete the connection between the suspension rod 6 and the reverse arc door 1;

[0050] Step 10, normal operation of the reverse arc door 1:

[0051] After the installation of the suspension rod 6 is completed, the hoist is started and the reverse arc door 1 is tested to see whether it operates normally.

[0052] Furthermore, the specific process of step 3 is as follows:

[0053] Step 3.1, welding and fixing the bottom bracket 16 to the upstream water guide plate 4 of the door leaf;

[0054] Step 3.2, fix the U-shaped plate 17 on the bottom bracket 16;

[0055] Step 3.3, fix the boring bar fixing plate 18 on the U-shaped plate 17.

[0056] Furthermore, the specific process of step 4 is as follows:

[0057] Step 4.1, adjusting the installation position between the U-shaped plate 17 and the transverse elliptical installation hole 21 according to the transverse position of the ear shaft hole 3;

[0058] Step 4.2, after the lateral position adjustment of the U-shaped plate 17 on the bottom bracket 16 is completed, the installation position between the boring bar fixing plate 18 and the longitudinal elliptical mounting hole 20 is adjusted, so that the boring bar mounting hole on the boring bar fixing plate 18 is coaxial with the axis of the lifting ear shaft hole 3.

[0059] Furthermore, the specific process of step 5 is as follows:

[0060] Step 5.1, pass the boring bar 9 through the trunnion hole 3, and support the boring bar 9 on the boring bar fixing plate 18 through the sliding bearing 10, so that the boring bar 9 can realize both axial rotation and axial feeding;

[0061] Step 5.2, connecting the boring bar 9 to the output shaft of the servo main motor 11 of the power device;

[0062] Step 5.3, fixedly connect the servo main motor 11 to the nut seat 13 of the feeding device.

[0063] Furthermore, the specific process of step 6 is as follows:

[0064] Step 6.1, start the servo main motor 11, drive the planetary reducer 12 through the servo main motor 11, drive the boring bar 9 through the planetary reducer 12, drive the tool through the boring bar 9, and then cut and repair the damaged trunnion hole 3;

[0065] Step 6.2, synchronously start the feeding device, drive the feeding screw 14 through the power box 15, and drive the entire power device to feed along the axial direction of the lifting ear shaft hole 3 through the feeding screw 14, thereby realizing the cutting repair of the inner wall of the entire lifting ear shaft hole 3.

[0066] After adopting the utility model, after draining the valve well, the high-precision positioning ear hole repair equipment 7 is coaxial with the ear shaft hole 3, thereby realizing high-precision and rapid repair of the damaged ear shaft hole 3 of the reverse arc door 1, and the nesting and positioning pins are installed after the repair, which improves the stress state of the opening and closing operation of the reverse arc door 1 and extends the service life of the reverse arc door 1.

Claims

1. A ship lock reverse arc valve trunnion hole repair device, characterized in that: The invention comprises an anti-arc door (1), wherein a lifting ear (2) is arranged at the top of the anti-arc door (1), and a lifting ear shaft hole (3) is processed inside the lifting ear (2), the lifting ear (2) is welded to an upstream water guide plate (4) of a door leaf of the anti-arc door (1), the lifting ear shaft hole (3) is connected to a suspension rod (6) via a pin shaft (5), and the opening and closing action of the anti-arc door (1) is realized under the action of a hoist; and a shaft hole repairing device (7) for repairing the lifting ear shaft hole is arranged at the lifting ear shaft hole (3) of the anti-arc door (1).

2. According to claim 1, a ship lock reverse arc valve trunnion hole repairing device is characterized in that: The shaft hole repairing device (7) comprises a combined bracket (8), on which a boring bar (9) is supported and mounted via a sliding bearing seat (10), the boring bar (9) being connected to a power device for driving the boring bar to rotate, and a tool for cutting machining being mounted on the boring bar (9); the power device being mounted on a feed device for driving the boring bar to move axially along the trunnion shaft hole (3).

3. The device for repairing the trunnion hole of a reverse arc valve of a ship lock according to claim 2, characterized in that: The combined bracket (8) comprises a bottom bracket (16), a U-shaped plate (17) and a boring bar fixing plate (18); the bottom bracket (16) is fixed to the upstream water guide plate (4) of the door leaf, a transverse elliptical mounting hole (21) is machined on the bottom bracket (16), the U-shaped plate (17) is fixedly mounted on the transverse elliptical mounting hole (21) by means of bolts, a longitudinal elliptical mounting hole (20) is machined on the U-shaped plate (17), and the boring bar fixing plate (18) is fixedly mounted on the longitudinal elliptical mounting hole (20) by means of bolts.

4. The device for repairing the trunnion hole of a reverse arc valve of a ship lock according to claim 3, characterized in that: The power device comprises a servo main motor (11), the output shaft of the servo main motor (11) is connected to the main shaft of a planetary reducer (12), and the output shaft of the planetary reducer (12) is connected to the boring bar (9).

5. A ship lock reverse arc valve trunnion hole repairing device according to claim 4, characterized in that: The feeding device comprises a power box (15), the power box (15) is fixedly mounted on the anti-arc door (1), the output shaft of the power box (15) is connected to a feed screw (14), the feed screw (14) is rotatably supported on the anti-arc door (1) via a screw bearing seat (19), a feed nut seat (13) is mounted on the feed screw (14) via a screw transmission, and a servo main motor (11) of the power device is fixedly mounted on the outer wall of the feed nut seat (13).

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