A sealing ring quick assembly auxiliary device

Abstract

The utility model relates to sealing ring assembly technical field, and disclose a kind of sealing ring quick assembly auxiliary device, including assembly body, and one end of assembly body is fixedly connected with knock plate, and the one end of assembly body away from knock plate is provided with installation assembly and auxiliary pressing plate, and the inner wall of installation groove is threadedly connected with mounting post, and the inner wall of mounting post is slidably connected with movable post, and the outer wall of movable post is fixedly connected with sleeving plate, sealing ring is sleeved in the outer wall of sleeving plate, and the adaptation size design of sleeving plate lets sealing ring keep stretch without extrusion, then device is aligned with the sealing ring installation position of speed reducer, ensure coaxial alignment, staff knock knock plate with tool, make external force steady transmission to assembly body, then through the auxiliary pressing plate of fixed connection, force is evenly dispersed to the entire circumferential end surface of sealing ring, sealing ring can be steadily embedded in installation groove, in the whole process, each component is cooperated through thread cooperation, clearance fit and positioning limiting structure, which replaces traditional manual partial force mode.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring assembly technology, and in particular to a quick sealing ring assembly auxiliary device. Background Technology

[0002] In power plant production sites, air preheater reducers and air-cooled island reducers are key rotating equipment, and their sealing performance directly affects the stable operation of the equipment and the power plant's production efficiency. Sealing rings are core wear parts that ensure the sealing performance of the equipment; their material, structure, and assembly quality directly determine the equipment's operational stability. These sealing rings are mostly made of oil-resistant, temperature-resistant, and wear-resistant elastic materials such as nitrile rubber, fluororubber, and polyurethane. In some special operating conditions, modified rubber or composite materials are also used to adapt to the complex environment of power plants, characterized by high temperatures, high dust levels, continuous vibration, and oil immersion. Structurally, the sealing rings commonly used in power plant reducers are mostly O-rings. Their dimensions must be precisely matched with the reducer shaft diameter, the inner diameter of the mounting groove, and its depth. The sealing principle relies on the elasticity of the sealing ring itself and the clamping force on the mounting surface after assembly to form a sealed space to prevent lubricating oil leakage. The elastic characteristics of these sealing rings are both the core of the sealing process and a challenge in assembly. Because the equipment is exposed to complex conditions of high temperature, dust, vibration and oil, the sealing ring is prone to aging, wear and deformation, and needs to be inspected and replaced regularly. The existing assembly method is to place the sealing ring in the installation position and then tap it locally by the staff. During the assembly process, the sealing ring is easily deformed due to excessive or uneven force concentration, which may cause varying degrees of damage and directly increase the risk of oil leakage from the reducer. Utility Model Content

[0003] The technical problem to be solved by this utility model is that in the existing technology, the sealing ring is easily deformed due to excessive or uneven stress concentration during the assembly process, which may cause damage of varying degrees and directly increase the risk of oil leakage in the reducer. To address this, we propose a quick assembly auxiliary device for the sealing ring.

[0004] To achieve the above objectives, this application adopts the following technical solution: a quick assembly auxiliary device for sealing rings, comprising an assembly body, one end of which is fixedly connected to a striking plate, and an installation component and an auxiliary pressure plate provided at the end of the assembly body away from the striking plate. The auxiliary pressure plate is fixedly connected to the assembly body. The installation component includes an installation groove formed on the end face of the assembly body away from the striking plate. An installation column is threadedly connected to the inner wall of the installation groove. A movable column is slidably connected to the inner wall of the installation column. A sleeve plate is fixedly connected to the outer wall of the movable column. The sleeve plate is used to fit the sealing ring to be assembled onto the outer wall. The fitting size design of the sleeve plate allows the sealing ring to remain stretched without compression. The device is then aligned with the sealing ring mounting position of the reducer to ensure coaxial alignment. The operator uses a tool to strike the striking plate to smoothly transmit external force to the assembly body. Then, through the fixedly connected auxiliary pressure plate, the force is evenly distributed to the entire circumferential end face of the sealing ring.

[0005] Furthermore, the auxiliary pressure plate has a circular ring structure, and the inner diameter of the auxiliary pressure plate is larger than the diameter of the mounting plate, forming an interference-free assembly fit and providing space for the pushing of the sealing ring.

[0006] Furthermore, a limit block is fixedly connected to the outer wall of the end of the movable column away from the mounting plate, which not only limits the sliding stroke of the movable column and prevents it from slipping out of the mounting column, but also provides an installation base for the positioning structure.

[0007] Furthermore, the limiting blocks are provided in two sets, and the two sets of limiting blocks are symmetrically distributed about the center of the movable column.

[0008] Furthermore, a positioning rod is fixedly connected to the lower end of the limiting block, and a positioning hole is opened at the end of the mounting column away from the mounting plate. The positioning rod matches the positioning hole, and the positioning rod and the positioning hole are in clearance fit, so that when the positioning rod is fully inserted into the positioning hole, it not only forms a radial limit on the mounting column, but also effectively prevents it from shifting or shaking during rotation adjustment, ensuring the stability and adjustment accuracy of the adjustment process.

[0009] Furthermore, when the positioning rod is on the inner wall of the positioning hole, the sleeve plate protrudes completely from the auxiliary pressure plate, ensuring that the sealing ring can be accurately aligned with the reducer installation position after being fitted, without the need for repeated manual calibration.

[0010] The technical effects and advantages of this utility model are as follows: In this invention, the sealing ring is fitted onto the outer wall of the mounting plate. The fitting size design of the mounting plate ensures that the sealing ring remains relaxed and uncompressed. The device is then aligned with the sealing ring mounting position of the reducer to ensure coaxial alignment. The operator taps the tapping plate with a tool to smoothly transmit the external force to the assembly. Then, through the fixedly connected auxiliary pressure plate, the force is evenly distributed to the entire circumferential end face of the sealing ring, allowing the sealing ring to be smoothly embedded into the mounting groove. Throughout the process, the various components work together through threaded fit, clearance fit, and positioning and limiting structure, which replaces the traditional manual localized force application method and solves the problem that the sealing ring is easily deformed due to excessive or uneven force concentration during assembly, which may lead to varying degrees of damage and directly increase the risk of oil leakage from the reducer. Attached Figure Description

[0011] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective; Figure 3 This is a schematic diagram of the overall planar structure of the present invention; Figure 4 For the present utility model Figure 3 A magnified structural diagram at point A.

[0012] Legend: 1. Assembly; 2. Striking plate; 3. Mounting component; 31. Mounting slot; 32. Mounting column; 33. Movable column; 34. Set plate; 35. Limiting block; 36. Positioning rod; 37. Positioning hole; 4. Auxiliary pressure plate. Detailed Implementation

[0013] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0014] Reference Figures 1-4 As shown, in order to solve the problem that the sealing ring is easily deformed due to excessive or uneven stress during assembly, which may lead to varying degrees of damage and directly increase the risk of oil leakage from the reducer, the following preferred technical solution is provided: A quick assembly auxiliary device for a sealing ring includes an assembly body 1, one end of which is fixedly connected to a striking plate 2 by welding or bolting, allowing the external force during subsequent striking to be transmitted more smoothly to the entire device. The end of the assembly body 1 furthest from the striking plate 2 is fixedly connected to an auxiliary pressure plate 4 with a circular structure by integrated machining or bolting. This end is also equipped with an installation component 3, which is the core module for pre-positioning and guiding the sealing ring during assembly. The installation component 3 consists of an installation groove 31, an installation column 32, a movable column 33, and a mounting plate 34 arranged sequentially. The installation groove 31 is directly formed on the assembly body 1 furthest from the striking plate. One end face of 2 has a precision internal thread machined on its inner wall, and the outer wall of the mounting column 32 has a matching external thread machined accordingly. The two are detachably fixedly connected by thread engagement. The axial extension length can be adjusted by rotating the mounting column 32. The movable column 33 is a cylindrical structure and is in a clearance fit with the inner wall of the mounting column 32. It can slide freely along the axial direction of the mounting column 32 to ensure smooth movement. The sleeve plate 34 is a disc-shaped structure and is fixedly connected to the outer wall of the movable column 33 facing the auxiliary pressure plate 4 by welding. Its outer diameter is precisely designed according to the inner diameter of the sealing ring of the commonly used reducer in power plants, and is specially used to fit the sealing ring to be assembled. It is worth noting that the inner diameter of the auxiliary pressure plate 4 is larger than the outer diameter of the mounting plate 34. Although the two are not directly connected, they can form an interference-free assembly fit, providing space for the sealing ring to be pushed. The sealing ring is fitted onto the outer wall of the mounting plate 34. The fitting size design of the mounting plate 34 allows the sealing ring to remain stretched without compression. Then, the device is aligned with the sealing ring mounting position of the reducer to ensure coaxial alignment. The operator uses a tool to tap the tapping plate 2 to smoothly transmit the external force to the assembly 1. Then, through the fixedly connected auxiliary pressure plate 4, the force is evenly distributed to the entire circumferential end face of the sealing ring, and the sealing ring can be smoothly embedded into the mounting groove.

[0015] To ensure assembly accuracy and structural stability, two sets of limiting blocks 35 are symmetrically fixed to the outer wall of the end of the movable column 33 away from the mounting plate 34. The two sets of limiting blocks 35 are evenly distributed with the central axis of the movable column 33 as the center of symmetry. They not only limit the sliding stroke of the movable column 33 to prevent it from slipping out of the mounting column 32, but also provide an installation base for the positioning structure. A positioning rod 36 is vertically welded to the lower end face of each set of limiting blocks 35. On the end face of the mounting column 32 away from the mounting plate 34, a positioning hole 37 is opened, which is precisely matched with the outer diameter of the positioning rod 36. The positioning rod 36 and the positioning hole 37 are in clearance fit. When the positioning rod 36 is fully inserted into the positioning hole 37, it not only forms a radial limit on the mounting column 32, effectively preventing it from shifting or shaking during rotation and adjustment, ensuring the stability and accuracy of the adjustment process, but also ensures that the mounting plate 34 can be completely protruded from the end face of the auxiliary pressure plate 4, ensuring that the sealing ring can be accurately aligned with the reducer installation position after being fitted, without the need for repeated manual calibration.

[0016] Specifically, during operation, first, according to the model of the sealing ring to be installed and the required assembly depth, rotate the mounting column 32. Utilize its threaded engagement with the mounting groove 31 on the assembly body 1 to adjust the axial position of the mounting column 32. At this time, the tight clearance fit between the positioning rod 36 and the positioning hole 37 can form a radial limit on the mounting column 32, preventing offset and shaking during adjustment and ensuring accurate and stable position adjustment. Subsequently, slide the movable column 33 to fully insert the two sets of positioning rods 36 into the corresponding positioning holes 37. At this time, the sleeve plate 34 is exactly fully protruding from the end face of the auxiliary pressure plate 4. With the limiting action of the limiting block 35, the movable column 33 will not slip out of the mounting column 32, while simultaneously achieving standardized fixing of the protrusion length of the sleeve plate 34.

[0017] Next, the sealing ring is fitted onto the outer wall of the mounting plate 34. The fitting size design of the mounting plate 34 ensures that the sealing ring remains relaxed and without compression. Then, the device is aligned with the sealing ring mounting position of the reducer to ensure coaxial alignment. The worker uses a tool to tap the tapping plate 2 to smoothly transmit the external force to the assembly 1. Then, through the fixedly connected auxiliary pressure plate 4, the force is evenly distributed to the entire circumferential end face of the sealing ring, so that the sealing ring can be smoothly embedded into the mounting groove. Throughout the process, the various components, through the synergy of threaded fit, clearance fit and positioning and limiting structure, not only replace the traditional manual local force application method, but also solve the problem that the sealing ring is easily deformed due to excessive or uneven force concentration during the assembly process, which may cause varying degrees of damage and directly increase the risk of oil leakage from the reducer.

[0018] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A quick assembly auxiliary device for sealing rings, characterized in that, The assembly includes an assembly with a striking plate fixedly connected to one end. An installation component and an auxiliary pressure plate are provided at the end of the assembly away from the striking plate. The auxiliary pressure plate is fixedly connected to the assembly. The installation component includes an installation groove formed on the end face of the assembly away from the striking plate. An installation post is threadedly connected to the inner wall of the installation groove. A movable post is slidably connected to the inner wall of the installation post. A sleeve plate is fixedly connected to the outer wall of the movable post. The sleeve plate is used to fit the sealing ring to be assembled onto the outer wall.

2. The quick assembly auxiliary device for sealing rings according to claim 1, characterized in that: The auxiliary pressure plate has a circular ring structure, and the inner diameter of the ring of the auxiliary pressure plate is larger than the diameter of the mounting plate.

3. The quick assembly auxiliary device for sealing rings according to claim 1, characterized in that: A limit block is fixedly connected to the outer wall of the end of the movable column away from the mounting plate.

4. The quick assembly auxiliary device for sealing rings according to claim 3, characterized in that: The limiting blocks are provided in two sets, and the two sets of limiting blocks are symmetrically distributed about the center of the movable column.

5. The quick assembly auxiliary device for sealing rings according to claim 4, characterized in that: The lower end of the limiting block is fixedly connected to a positioning rod, and the end of the mounting column away from the mounting plate is provided with a positioning hole, and the positioning rod matches the positioning hole.

6. The quick assembly auxiliary device for sealing rings according to claim 5, characterized in that: When the positioning rod is inside the positioning hole, the sleeve plate protrudes completely from the auxiliary pressure plate.

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