Non-destructive quick dismounting device for oil seal of RV reducer based on gas driving

Abstract

This utility model relates to a gas-driven, non-destructive, rapid disassembly device for RV reducer oil seals. Its features include: an upper sealing unit comprising an upper cover plate, an upper sealing rubber gasket, and a sealing ring; a lower sealing unit comprising a lower base and a lower sealing rubber gasket; an air inlet passage at the upper end of the vent screw; a sealing contact between the lower end of the sealing ring and the upper end of the RV reducer housing; the upper cover plate is press-fitted onto the upper end of the sealing ring, with the screw through-hole on the upper cover plate aligned with the center hole of the RV reducer; the upper sealing rubber gasket is coaxially positioned on the upper end of the upper cover plate; the lower sealing rubber gasket is positioned at the upper end of the lower base with center alignment, and makes sealing contact with the lower end of the RV reducer housing; the vent screw passes through the screw through-holes of the upper sealing rubber gasket, the upper cover plate, the center hole of the RV reducer, and the lower sealing rubber gasket from top to bottom, and connects to the threaded hole on the lower base. This device enables non-destructive, rapid disassembly of the oil seal through venting.

Description

Technical Field

[0001] This utility model belongs to the field of speed reducer technology, and in particular relates to a gas-driven RV speed reducer oil seal non-destructive quick disassembly device. Background Technology

[0002] RV reducers are characterized by high transmission ratio, low output speed, and high load capacity, and are widely used in industrial robots, aerospace equipment, and medical equipment. In RV reducers, the oil seal is a critical sealing component, used to prevent lubricating oil leakage and to prevent external impurities from entering the reducer. During the assembly and adjustment of RV reducers, the oil seal needs to be removed. However, traditional disassembly methods typically involve using pry bars or clamps to forcibly remove the seal, which can lead to problems such as oil seal deformation and damage, scratches on the reducer's machined surfaces, low efficiency, and high skill requirements for the disassembly personnel. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model proposes a gas-driven, non-destructive, and rapid disassembly device for RV reducer oil seals, which can meet the requirements for rapid and non-destructive disassembly of the oil seals at the output end of RV reducers.

[0004] The above-mentioned objective of this utility model is achieved through the following technical solution:

[0005] A gas-driven, non-destructive, quick-release device for RV reducer oil seals, characterized in that it includes an upper sealing unit, a lower sealing unit, and a vent screw;

[0006] The upper sealing unit includes an upper cover plate, an upper sealing rubber gasket, and a sealing ring; screw through holes are provided at the center of the upper cover plate and the center of the upper sealing rubber gasket; the sealing ring consists of an outer ring, an inner ring, and a rubber ring sandwiched between the inner and outer rings, with the upper end of the rubber ring extending from the upper ends of the inner and outer rings, and the lower end of the rubber ring extending from the lower ends of the inner and outer rings; the lower sealing unit includes a lower base and a lower sealing rubber gasket, with a screw through hole at the center of the lower sealing rubber gasket and a threaded hole at the center of the upper end of the lower base; an air inlet passage is provided at the upper part of the vent screw;

[0007] The sealing ring is placed at the upper end of the RV reducer, and its lower end is in sealing contact with the upper end of the RV reducer housing. The upper cover plate is press-fitted onto the upper end of the sealing ring, and the screw through hole on the upper cover plate is aligned with the center hole of the RV reducer. The upper sealing rubber gasket is coaxially placed at the upper end of the upper cover plate. The lower sealing rubber gasket is placed at the upper end of the lower base in a center-aligned manner, and the lower sealing rubber gasket is in sealing contact with the lower end of the RV reducer housing. The vent screw passes through the screw through hole of the upper sealing rubber gasket, the screw through hole of the upper cover plate, the center hole of the RV reducer, and the screw through hole of the lower sealing rubber gasket from top to bottom, and forms a threaded fastening connection with the threaded hole on the lower base.

[0008] Furthermore, the air intake passage consists of an axial ventilation blind hole and two radial ventilation holes arranged vertically and vertically that connect the axial ventilation blind hole.

[0009] The advantages and positive effects of this utility model are as follows:

[0010] This invention achieves sealed contact with the upper end of the RV reducer through the upper sealing unit and sealed contact with the lower end of the RV reducer through the lower sealing unit. The RV reducer is clamped and fixed between the upper and lower sealing units by the vent screw. Gas can be introduced into the RV reducer through the air intake passage of the vent screw, thereby achieving non-destructive and quick disassembly of the RV reducer oil seal through the pressure difference between the inside and outside. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of the non-destructive quick disassembly device of this utility model in use;

[0012] Figure 2 This is an appearance diagram of the non-destructive quick disassembly device of this utility model in use;

[0013] Figure 3 This is a perspective view of the sealing ring of this utility model;

[0014] Figure 4 This is a partially enlarged view of the sealing ring of this utility model;

[0015] Figure 5 This is an installation structure diagram of the oil seal to be removed using this non-destructive quick disassembly device;

[0016] Figure 6 This is a schematic diagram of the vent screw in the non-destructive quick disassembly device of this utility model. Detailed Implementation

[0017] The structure of this utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that these embodiments are descriptive and not limiting.

[0018] A gas-driven, non-destructive, quick-release device for RV reducer oil seals; please refer to [link / reference]. Figures 1-2 The invention comprises an upper sealing unit, a lower sealing unit, and a vent screw 3.

[0019] The upper sealing unit is used to seal and press the upper end of the RV reducer 5. The lower sealing unit is used to seal and press the lower end of the RV reducer. The vent screw is used to axially connect and fix the upper and lower sealing units, and to provide a passage for gas to enter the RV reducer.

[0020] The upper sealing unit includes an upper cover plate 1, an upper sealing rubber gasket 2, and a sealing ring 4. Screw through holes are provided at the center of both the upper cover plate and the upper sealing rubber gasket. The sealing ring consists of an outer ring 41, an inner ring 43, and a rubber ring 42 sandwiched between the inner and outer rings. The outer and inner rings are made of steel and act as a skeleton. The upper and lower ends of the outer and inner rings are flush. The upper end of the rubber ring extends from the upper ends of the inner and outer rings, and the lower end extends from the lower ends of the inner and outer rings, allowing for elastic deformation at both the upper and lower ends of the rubber ring.

[0021] The lower sealing unit includes a lower base 6 and a lower sealing rubber gasket 7. The outer diameter of the lower sealing rubber gasket is the same as the outer diameter of the lower base. A screw through hole is provided in the center of the lower sealing rubber gasket, and a threaded hole is provided in the center of the upper end of the lower base.

[0022] The upper part of the vent screw is provided with an air intake passage, which is composed of an axial vent blind hole 31 and a radial vent hole 32 that connects to the axial vent blind hole. In this utility model, the vent screw is provided with two radial vent holes, which can realize the rapid and uniform input of gas.

[0023] The sealing ring is positioned at the upper end of the RV reducer, with its lower end in sealing contact with the upper end of the RV reducer housing. The upper cover plate is press-fitted onto the upper end of the sealing ring, with its center hole aligned with the center hole of the RV reducer. The upper sealing rubber gasket is coaxially positioned at the upper end of the upper cover plate. The lower sealing rubber gasket is positioned at the upper end of the lower base with its center aligned, and it is in sealing contact with the lower end of the RV reducer housing. The vent screw passes through the screw holes of the upper sealing rubber gasket, the upper cover plate, the center hole of the RV reducer, and the lower sealing rubber gasket from top to bottom, forming a threaded fastening connection with the threaded hole on the lower base. Under the pressure of the vent screw, the upper sealing rubber gasket undergoes elastic deformation, ensuring the sealing performance of the vent screw and the upper cover plate fitting together.

[0024] By introducing gas into the upper end of the axial vent hole of the vent screw, the gas enters the interior of the RV reducer through the radial vent hole on the vent screw. When the internal pressure of the RV reducer is greater than the atmospheric pressure, the reducer oil seal is pushed out by the gas, thus achieving non-destructive and rapid disassembly of the RV reducer oil seal 51.

[0025] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A gas-driven, non-destructive, rapid disassembly device for RV reducer oil seals, characterized in that: Includes an upper sealing unit, a lower sealing unit, and a vent screw; The upper sealing unit includes an upper cover plate, an upper sealing rubber gasket, and a sealing ring; screw through holes are provided at the center of the upper cover plate and the center of the upper sealing rubber gasket; the sealing ring consists of an outer ring, an inner ring, and a rubber ring sandwiched between the inner and outer rings, with the upper end of the rubber ring extending from the upper ends of the inner and outer rings, and the lower end of the rubber ring extending from the lower ends of the inner and outer rings; the lower sealing unit includes a lower base and a lower sealing rubber gasket, with a screw through hole at the center of the lower sealing rubber gasket and a threaded hole at the center of the upper end of the lower base; an air inlet passage is provided at the upper part of the vent screw; The sealing ring is placed at the upper end of the RV reducer, and its lower end is in sealing contact with the upper end of the RV reducer housing. The upper cover plate is press-fitted onto the upper end of the sealing ring, and the screw through hole on the upper cover plate is aligned with the center hole of the RV reducer. The upper sealing rubber gasket is coaxially placed at the upper end of the upper cover plate. The lower sealing rubber gasket is placed at the upper end of the lower base in a center-aligned manner, and the lower sealing rubber gasket is in sealing contact with the lower end of the RV reducer housing. The vent screw passes through the screw through hole of the upper sealing rubber gasket, the screw through hole of the upper cover plate, the center hole of the RV reducer, and the screw through hole of the lower sealing rubber gasket from top to bottom, and forms a threaded fastening connection with the threaded hole on the lower base.

2. The gas-driven RV reducer oil seal non-destructive quick disassembly device according to claim 1, characterized in that: The air intake passage consists of an axial ventilation blind hole and two radial ventilation holes arranged above and below the axial ventilation blind hole.

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