Bulb tubular unit block type radial tile dismounting tool

Abstract

The utility model discloses a block type radial tile dismounting tool for a bulb tubular unit. The radial tile dismounting tool is arranged on a tube base of the unit. The radial tile disassembling and assembling tool comprises a fixing screw rod, a fixing frame structure, a rotating mechanism, a supporting plate, a push-pull screw rod and a connecting screw rod. A plurality of fixing screws are fixedly connected with the pipe seat, the fixing frame structure is connected with the fixing screws, the supporting plate is connected with the fixing frame structure, and the push-pull screws and the connecting screws are arranged on the supporting plate. One side of the supporting plate is fixedly connected with the mounting structure, the push-pull screw is in threaded connection with the mounting structure, the rotating mechanism is rotationally connected to one end of the push-pull screw, and the connecting screw is fixedly connected with the rotating mechanism. By means of the design, the block type radial tile can be rapidly disassembled and assembled, and the disassembling and assembling efficiency of the block type radial tile is improved. The fixed frame structure and the supporting plate provide stable supporting, the blocking type radial tile is prevented from falling off, and therefore the safety of disassembling and assembling the blocking type radial tile is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of combined bearing disassembly and assembly tools for hydro-generator sets, in particular to a block-type radial bearing disassembly and assembly tool for bulb-type tubular sets. Background Art

[0002] The main functions of the segmented radial bearings of the bulb-type tubular unit are: 1. Fixing the axis of the unit, ensuring that the rotation center line of the unit rotates within the specified bearing clearance range, helping to maintain stable operation of the unit and avoid mechanical failures caused by axis deviation; 2. Withstanding radial forces, the segmented radial bearings can withstand radial forces of the unit, which may come from the rotating parts of the unit and the force of water flow, ensuring that the unit can balance these forces and maintain stability during operation; 3. Supporting the rotating parts, the radial bearings are also responsible for supporting the rotating parts of the unit, including the generator rotor, etc., to ensure that these parts can operate smoothly and efficiently.

[0003] Given the three important aspects of radial bearings in unit operation, the quality and condition of the block radial bearing pads affect the normal and stable operation of the unit. However, oil contamination, insufficient oil supply, abnormal shutdowns, and other reasons will cause the radial pad temperature to rise abnormally, resulting in the burning of the babbitt alloy on the pad surface. Therefore, the block radial pads must be disassembled immediately for inspection and treatment. The bulb-type cross-flow unit is a horizontal unit with a horizontal structure. When removing the block radial pads, they cannot be lifted vertically using a hoist and must be removed horizontally. Furthermore, a single radial pad weighs approximately 240 kg. During horizontal movement, the space is small and there are no dedicated support tools. The disassembly and assembly process is cumbersome, and there is a risk of it falling, damaging equipment, and injuring personnel.

[0004] Patent publication number CN111946530B discloses a bulb-type cross-flow unit bearing burnout warning monitoring and protection system. This system uses an automatic oil level detection unit in the bearing oil supply level monitoring and protection subsystem to monitor the oil levels of the lubricating oil in the high and low oil tanks in real time. If the oil level is detected to be too low, remedial measures are taken to raise the oil level to prevent the occurrence of bulb-type cross-flow unit bearing burnout accidents due to bearing oil supply interruptions. This structure can effectively protect the bearings and prevent them from burning out. However, damage to the working surface of the bearings can seriously affect the normal operation of the unit and the judgment of the monitoring and protection system. Therefore, the bearings still need to be removed for maintenance or replacement. Utility Model Content

[0005] The purpose of this utility model is to provide a modular radial tile disassembly and assembly device for a bulb tubular unit to solve the following technical problems raised in the background art:

[0006] There is no special disassembly and assembly tool for the segmented radial bush in the prior art, which results in cumbersome operation during the disassembly and assembly of the segmented radial bush and low safety.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A modular radial shoe disassembly and assembly tool for a bulb-type tubular unit, the radial shoe disassembly and assembly tool being arranged on the tube seat of the unit; the radial shoe disassembly and assembly tool comprising a fixed screw, a fixed frame structure, a rotating mechanism, a support plate, a push-pull screw and a connecting screw; a plurality of fixed screws are fixedly connected to the tube seat, the fixed frame structure is connected to the fixed screw, the support plate is connected to the fixed frame structure, the push-pull screw and the connecting screw are arranged on the support plate; one side of the support plate is fixedly connected to the mounting structure, the push-pull screw is threadedly connected to the mounting structure, the rotating mechanism is rotatably connected to one end of the push-pull screw, and the connecting screw is fixed to the rotating mechanism.

[0009] Furthermore, the fixed frame structure includes end plates, a fixed plate and a connecting sleeve; the end plates are fixed to both ends of the fixed plate, the connecting sleeve is fixed to the end plates, and the connecting sleeve is sleeved on the outside of the fixing screw.

[0010] Furthermore, an intermediate plate is fixedly connected between the end plates, a plurality of support rods are fixedly connected to the intermediate plate, and a support roller is connected to one end of the support rod close to the support plate.

[0011] Furthermore, a plurality of support rods are evenly spaced apart on both sides of the middle plate, and a rubber layer is provided on the outer side of the support roller.

[0012] Furthermore, the mounting structure includes a mounting seat and a nut, the mounting seat is fixedly connected to the support plate, the nut is fixedly connected to the mounting seat, and the push-pull screw rod is threadedly connected to the nut.

[0013] Furthermore, a one-way thrust bearing is connected to the mounting seat, and the push-pull screw is connected to the one-way thrust bearing.

[0014] Furthermore, a rib plate is provided between the mounting seat and the support plate, the rib plate is fixedly connected to the mounting seat and the support plate respectively, and at least two rib plates are provided.

[0015] Furthermore, a rotating rod is fixedly connected to one end of the push-pull screw rod away from the connecting screw rod.

[0016] Furthermore, the rotating mechanism includes a connecting plate and a rotating connecting head, the rotating connecting head is rotationally connected to the push-pull screw, the connecting plate is fixed to the rotating connecting head, and the connecting screw is threadedly connected to the connecting plate.

[0017] Furthermore, connecting screws are symmetrically arranged on both sides of the connecting plate.

[0018] Furthermore, two connecting nuts are threadedly connected to the connecting screw, and the two connecting nuts are respectively located on both sides of the connecting plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the present invention, the fixed screw provides a stable support point, the fixed frame structure provides a stable support base, and the support plate can support the disassembled segmented radial pad to prevent it from falling. The push-pull screw can achieve axial movement by rotating the push-pull screw, and the connecting screw is connected to the segmented radial pad, thereby facilitating the pull-out or push-in operation. Through this design of the present invention, the segmented radial pad can be quickly disassembled and assembled, thereby improving the efficiency of disassembly and assembly of the segmented radial pad. The fixed frame structure and the support plate provide stable support to prevent the segmented radial pad from falling, thereby improving the safety of disassembly and assembly of the segmented radial pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is one of the overall structural diagrams of the utility model;

[0022] Figure 2 This is the second schematic diagram of the overall structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the connection relationship between the push-pull screw and the rotating connector of the utility model;

[0024] Figure 4 This is the third schematic diagram of the overall structure of the present utility model.

[0025] Markings in the figure: 1-end plate, 2-nut, 3-rotating rod, 4-push-pull screw, 5-one-way thrust bearing, 6-mounting seat, 7-support plate, 8-support roller, 9-connecting screw, 10-connecting plate, 11-rotating connector, 12-block radial pad, 13-connecting nut, 14-middle plate, 15-support rod, 16-fixing plate, 17-connecting sleeve, 18-fixing screw, 19-rib plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example:

[0028] A tool for disassembling and assembling radial tiles of a bulb tubular unit. Figure 1as well as Figure 2 As shown, the radial shoe disassembly and assembly tool is arranged on the pipe seat of the unit; the radial shoe disassembly and assembly tool includes a fixed screw 18, a fixed frame structure, a rotating mechanism, a support plate 7, a push-pull screw 4 and a connecting screw 9; several fixed screws 18 are fixedly connected to the pipe seat, the fixed frame structure is connected to the fixed screw 18, the support plate 7 is connected to the fixed frame structure, the push-pull screw 4 and the connecting screw 9 are arranged on the support plate 7; one side of the support plate 7 is fixedly connected to the mounting structure, the push-pull screw 4 is threadedly connected to the mounting structure, the rotating mechanism is rotatably connected to one end of the push-pull screw 4, and the connecting screw 9 is fixed to the rotating mechanism.

[0029] Among them, the tube base refers to the structure in the bulb cross-flow unit, and the block radial pad 12 that needs to be disassembled is located in the tube base. The tube base is an existing device structure in the prior art, and the specific structure of the tube base will not be described one by one. The end of the block radial pad 12 has a bolt hole, and the connecting screw 9 cooperates with the bolt hole on the block radial pad 12. The fixed screw 18 is used to provide a support point. After the fixed frame structure is connected to the fixed screw 18, it is close to the tube base, which facilitates the disassembly and assembly of the block radial pad 12 in the tube base. It should be noted that in order to ensure the stability of the fixed frame structure, multiple fixed screws 18 need to be set. In this embodiment, two fixed screws 18 are provided. The support plate 7 is used to support the disassembled block radial pad 12 to prevent the block radial pad 12 from falling. The push-pull screw 4 is connected to the block radial pad 12 through the connecting screw 9. Since the push-pull screw rod 4 is threadedly connected to the mounting structure, rotating the push-pull screw rod 4 will cause the push-pull screw rod 4 to move axially, and the push-pull screw rod 4 drives the connecting screw rod 9 to move together, thereby pulling out or pushing in the segmented radial bushing 12.

[0030] Specifically, when in use, first fix the fixed screw 18 to the pipe seat, install the fixed frame structure on the fixed screw 18 and fix it to ensure that the fixed frame will not move or shake. Then rotate the push-pull screw 4 so that the push-pull screw 4 produces axial displacement, and send the connecting screw 9 into the pipe seat through the push-pull screw 4. Thread the connecting screw 9 with the block-type radial pad 12. Rotate the push-pull screw 4 to pull out the connecting screw 9 and the block-type radial pad 12 together. After being pulled out, the block-type radial pad 12 is located on the support plate 7. At the same time, the connecting screw 9 will have a restrictive effect on the block-type radial pad 12, which can effectively prevent the block-type radial pad 12 from falling from the support plate 7. When installing the block-type radial pad 12, first place the block-type radial pad 12 on the support plate 7, connect the connecting screw 9 to the block-type radial pad 12, and send the connecting screw 9 and the block-type radial pad 12 into the pipe seat by rotating the push-pull screw 4. This design can improve the efficiency of disassembly and assembly, and enhance the safety of disassembly and assembly of the segmented radial bush 12.

[0031] In a preferred embodiment, Figure 1As shown, the fixed frame structure includes end plates 1, fixed plates 16, and connecting sleeves 17; end plates 1 are fixedly connected to both ends of fixed plates 16, and connecting sleeves 17 are fixedly connected to end plates 1. Connecting sleeves 17 are sleeved on the outside of fixed screws 18. Specifically, end plates 1 are located at both ends of the fixed frame and fixedly connected to fixed plates 16, forming a stable rectangular frame structure. The rectangular structure is sleeved on fixed screws 18 via connecting sleeves 17, and a nut can be tightened on the outside of fixed screws 18 to increase the stability of the fixed frame structure. This design provides stable support and ensures safety during the disassembly and assembly of the segmented radial pads 12.

[0032] In a preferred embodiment, Figure 1 as well as Figure 2 As shown, an intermediate plate 14 is fixed between the end plates 1, and a number of support rods 15 are fixed to the intermediate plate 14. The support rod 15 is connected to a support roller 8 at one end close to the support plate 7. The support roller 8 is used to guide the segmented radial pad 12. The support roller 8 can help guide the movement of the segmented radial pad 12 during the disassembly and assembly process, ensuring that it maintains correct alignment when entering and exiting the pipe seat. This guiding effect can prevent the segmented radial pad 12 from getting stuck due to deflection, making the entire operation smoother. In addition, the presence of the support roller 8 can reduce the friction of the segmented radial pad 12 during disassembly and installation, providing it with a smooth movement path, thereby reducing physical resistance and wear during the disassembly and assembly process. Less friction means easier operation, which helps to improve overall work efficiency. The support roller 8 can also provide support for the segmented radial pad 12, further improving safety.

[0033] In a preferred embodiment, Figure 4 As shown, a number of support rods 15 are evenly spaced on both sides of the middle plate 14, and a rubber layer is provided on the outside of the support roller 8. The evenly spaced configuration of the support rods 15 on both sides of the middle plate 14 ensures comprehensive support for the segmented radial pads 12, reducing deformation or damage caused by unbalanced loads. This uniform distribution helps to better balance the weight of the segmented radial pads 12, thereby maintaining its stability during the disassembly and assembly process. Due to the presence of the rubber layer, the wear caused by direct contact between the support roller 8 and the segmented radial pads 12 can be reduced, thereby protecting the outer surface of the segmented radial pads 12. The softness and deformability of the rubber layer enable the support roller 8 to better fit the surface of the segmented radial pads 12, and can still provide good support and guidance even in the case of unevenness or slight bumps.

[0034] The mounting structure includes a mounting seat 6 and a nut 2, the mounting seat 6 is fixedly connected to a support plate 7, the nut 2 is fixedly connected to the mounting seat 6, and the push-pull screw 4 is threadedly connected to the nut 2. Furthermore, a one-way thrust bearing 5 is also connected to the mounting seat 6, and the push-pull screw 4 is connected to the one-way thrust bearing 5. Among them, the fixed connection between the mounting seat 6 and the support plate 7 ensures that the entire mounting structure remains stable during operation. The provision of the one-way thrust bearing 5 enables the mounting structure to withstand the thrust from the push-pull screw 4 while only allowing axial one-way movement. This one-way thrust design ensures the accuracy of the operation and avoids potential failures caused by reverse thrust.

[0035] In a preferred embodiment, Figure 2 As shown, ribs 19 are provided between the mounting base 6 and the support plate 7. Ribs 19 are fixedly connected to the mounting base 6 and the support plate 7, respectively. At least two ribs 19 are provided. The provision of ribs 19 effectively distributes the load applied to the mounting base 6 and the support plate 7, enabling the entire structure to better withstand external forces and preventing deformation or damage caused by excessive force at a single point. The presence of multiple ribs 19 further enhances the overall structure's resistance to bending and shearing.

[0036] In a preferred embodiment, Figure 1 As shown, a rotating rod 3 is fixedly connected to the end of the push-pull screw 4, away from the connecting screw 9. The rotating rod 3 is used to facilitate the rotation of the connecting screw 9. The provision of the rotating rod 3 enables the operator to rotate the connecting screw 9 with a simple manual rotation operation, greatly improving the convenience of operation. This design effectively reduces the difficulty of operation and can quickly adapt to different working environments and operational requirements.

[0037] In a preferred embodiment, as shown in the figure, the rotating mechanism includes a connecting plate 10 and a rotating connector 11, and the rotating connector 11 is rotatably connected to the push-pull screw 4. Figure 3 As shown, the connecting plate 10 is fixedly connected to the rotating connector 11, and the connecting screw 9 is threadedly connected to the connecting plate 10. The setting of the rotating mechanism facilitates the rotational connection between the connecting screw 9 and the push-pull screw 4. At the same time, the screw connection between the connecting screw 9 and the connecting plate 10 realizes a detachable connection, which is convenient for selecting the screw according to different segmented radial pads 12. Further optimized, the connecting screws 9 are symmetrically arranged on both sides of the connecting plate 10. In other words, there are two connecting screws 9, and the stability of the segmented radial pads 12 can be ensured by setting two connecting screws 9. Further optimized, two connecting nuts 13 are threadedly connected to the connecting screw 9, and the two connecting nuts 13 are respectively located on both sides of the connecting plate 10. The connecting screw 9 is fixed to the connecting plate 10 by the two connecting nuts 13.

[0038] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A modular radial shoe disassembly and assembly tool for a bulb tubular unit, the radial shoe disassembly and assembly tool being mounted on the tube base of the unit; characterized in that: The radial shoe disassembly and assembly tool comprises a fixed screw (18), a fixed frame structure, a rotating mechanism, a support plate (7), a push-pull screw (4) and a connecting screw (9); A plurality of fixed screw rods (18) are fixedly connected to the pipe seat, the fixed frame structure is connected to the fixed screw rods (18), the support plate (7) is connected to the fixed frame structure, and the push-pull screw rods (4) and the connecting screw rods (9) are arranged on the support plate (7); One side of the support plate (7) is fixedly connected to the mounting structure, the push-pull screw rod (4) is threadedly connected to the mounting structure, the rotating mechanism is rotatably connected to one end of the push-pull screw rod (4), and the connecting screw rod (9) is fixedly connected to the rotating mechanism.

2. The modular radial shoe disassembly and assembly tool for a bulb tubular unit according to claim 1, characterized in that: The fixed frame structure comprises an end plate (1), a fixed plate (16) and a connecting sleeve (17); the end plate (1) is fixedly connected to both ends of the fixed plate (16), the connecting sleeve (17) is fixedly connected to the end plate (1), and the connecting sleeve (17) is sleeved on the outside of the fixing screw (18).

3. The modular radial shoe disassembly and assembly tool for a bulb tubular unit according to claim 2, characterized in that: An intermediate plate (14) is fixedly connected between the end plates (1), a plurality of support rods (15) are fixedly connected to the intermediate plate (14), and a support roller (8) is connected to one end of the support rod (15) close to the support plate (7).

4. The modular radial shoe disassembly and assembly tool for a bulb tubular unit according to claim 3, characterized in that: A plurality of support rods (15) are evenly spaced apart on both sides of the middle plate (14), and a rubber layer is provided on the outer side of the support roller (8).

5. The modular radial shoe disassembly and assembly tool for a bulb tubular unit according to claim 1, characterized in that: The mounting structure comprises a mounting seat (6) and a nut (2), the mounting seat (6) is fixedly connected to a support plate (7), the nut (2) is fixedly connected to the mounting seat (6), and the push-pull screw rod (4) is threadedly connected to the nut (2).

6. The modular radial shoe disassembly and assembly tool for a bulb tubular unit according to claim 5, characterized in that: The mounting seat (6) is also connected to a one-way thrust bearing (5), and the push-pull screw (4) is connected to the one-way thrust bearing (5).

7. The modular radial shoe disassembly and assembly tool for a bulb tubular unit according to claim 5, characterized in that: A rib plate (19) is provided between the mounting seat (6) and the support plate (7), and the rib plate (19) is fixedly connected to the mounting seat (6) and the support plate (7) respectively, and at least two rib plates (19) are provided.

8. The modular radial shoe disassembly and assembly tool for a bulb tubular unit according to claim 1, characterized in that: A rotating rod (3) is fixedly connected to one end of the push-pull screw rod (4) away from the connecting screw rod (9).

9. The modular radial shoe disassembly and assembly tool for a bulb tubular unit according to claim 1, characterized in that: The rotating mechanism comprises a connecting plate (10) and a rotating connecting head (11), the rotating connecting head (11) is rotatably connected to the push-pull screw (4), the connecting plate (10) and the rotating connecting head (11) are fixedly connected, and the connecting screw (9) is threadedly connected to the connecting plate (10).

10. The modular radial shoe disassembly and assembly tool for a bulb tubular unit according to claim 9, characterized in that: Connecting screw rods (9) are symmetrically arranged on both sides of the connecting plate (10), and two connecting nuts (13) are threadedly connected to the connecting screw rods (9). The two connecting nuts (13) are respectively located on both sides of the connecting plate (10).

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