Assembly protection fixture for sealing ring
A technology for protecting tooling and sealing rings, used in manufacturing tools, hand-held tools, etc., can solve the problems of damage to the sealing ring and the sealing ring groove, small assembly gap between the sealing ring and the sealing ring groove, and reduced press-in resistance. Ensure the integrity of the assembly, ensure the elastic effect, and the effect of simple tooling structure
Pending Publication Date: 2021-07-23
HUNAN TYEN MACHINERY
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AI Technical Summary
Problems solved by technology
However, in the process of pressing the sealing ring, as the opening of the sealing ring gradually increases, the pressing resistance increases, and when the sealing ring slides out of the taper sleeve, the pressing resistance suddenly decreases, and the assembly of the sealing ring and the sealing ring groove The gap is very small, and it is very easy for the seal ring to be punched out of the seal ring groove, resulting in damage to the seal ring and the seal ring groove
Method used
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Embodiment 1
[0017] A sealing ring assembly protection tool applied to the scroll end seal assembly, such as figure 1 and figure 2 As shown, it includes a tapered sleeve 2 adapted to the outer periphery of the turbine rotor 1 and a pressure sleeve 3 sleeved on the outer periphery of the tapered sleeve so as to press down the sealing ring 5, see figure 2 The pressure sleeve 3 includes a sleeve 31, an upper end cap 32 arranged at the end of the sleeve, a step is provided on the inner wall of the sleeve, the step surface 33 faces the direction of the upper end cap, and a limit block 34 that can move axially along the pressure sleeve is placed on the step, An elastic part 4 is provided between the stopper 34 and the upper end cover 32; the stopper 34 starts to contact and abuts against the end of the tapered sleeve 2 when the pressure sleeve 3 is pressed down until the seal ring 5 is close to the seal ring groove 11, Compress the elastic part 4, and provide a certain damping through the com...
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The invention relates to the technical field of assembly fixture design, and discloses an assembly protection fixture for a sealing ring. The assembly protection fixture for the sealing ring comprises a taper sleeve matched with the periphery of the sealing ring to be assembled and a pressing sleeve arranged on the periphery of the taper sleeve in a sleeving mode so as to press the sealing ring downwards, wherein the pressing sleeve comprises a sleeve body and an upper end cover arranged at the tail end of the sleeve body, a step is formed in the inner wall of the sleeve body, and the step face faces the direction of the upper end cover; a limiting block capable of moving in the axial direction of the pressing sleeve is placed on the step, and an elastic component is arranged between the limiting block and the upper end cover; in the pressing process of the pressing sleeve, the limiting block can abut against the end part of the taper sleeve; and when the pressing sleeve presses-fits in place, the taper sleeve pushes the limiting block to make hard contact with the upper end cover in the pressing sleeve. The fixture is simple in structure, the taper sleeve makes contact with the limiting block, certain damping is generated through deformation of the elastic component, the sealing ring is prevented from being punched out of a sealing ring groove due to too fast assembly caused by sudden change of resistance in a pressing-fitting process, and meanwhile when the sealing ring is pressed-fitted is in place, the taper sleeve pushes the limiting block to make hard contact with an upper end cover in the pressing sleeve for limiting protection, so that the assembly integrity of the sealing ring and the sealing ring groove is guaranteed.
Description
technical field [0001] The invention belongs to the technical field of assembly tool design, and in particular relates to a sealing ring assembly protection tool. Background technique [0002] The turbocharger uses the energy of the exhaust gas to drive the turbine to do work. The high-speed rotation of the turbine drives the coaxial compressor impeller to work, thereby increasing the intake pressure and increasing the intake air volume. When the turbine rotor assembly rotates at high speed, the two ends are high-pressure gas, and the middle support part is the lubrication system. Therefore, a sealing structure is required to ensure the normal operation of the turbine rotor assembly. Turbochargers are usually equipped with sealing rings at the compressor end and turbine end of the turbine rotor assembly to ensure sealing. [0003] The sealing ring is an annular elastic part with a narrow opening, which needs to be assembled in the sealing ring groove first, and then assembl...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B25B27/00B25B27/02
CPCB25B27/0028B25B27/02
Inventor 李文军刘玉峰周峥张涛闫海东
Owner HUNAN TYEN MACHINERY