CN212683835U - Quick mounting auxiliary tool for piston ring - Google Patents

Abstract

The utility model discloses a piston ring installs appurtenance fast, including piston snap ring, regulation pole and fastening nut, be provided with the through-hole on two lugs of piston snap ring opening part respectively, adjust the pole and pass through-hole and both ends on two lugs and connect fastening nut. The utility model discloses a quick installation appurtenance of piston ring has effectively improved installation effectiveness and installation quality to simple structure, convenient to use have fine economy and social.

Description

Quick mounting auxiliary tool for piston ring

Technical Field

The utility model relates to a piston ring installation technique, especially a quick installation appurtenance of piston ring.

Background

Piston rings are widely used in various power machines such as steam engines, diesel engines, gasoline engines, compressors, hydraulic machines, and the like. The piston ring is installed in the ring groove of piston, and it, piston, cylinder sleeve and cylinder cover are formed into a cavity chamber to do work, and because the piston is slightly less than the internal diameter of cylinder, if it has no piston ring, the piston is not stable in the cylinder, and can not freely move, at the same time, the piston ring also can prevent the piston from directly contacting with cylinder, and can play the supporting role. Therefore, the piston ring moves up and down in the cylinder, the sliding surface of the piston ring is born by the full bearing of the ring, the working surface of the piston ring is required not to have nicks, scratches and peeling, the outer cylindrical surface and the upper and lower end surfaces have certain smoothness, and the elasticity and the clearance of the piston ring meet the requirements. In addition, the light leakage of the piston ring should be checked to ensure good contact between the piston ring and the cylinder wall.

The piston ring is an elastic ring with great outward expansion deformation, and hard objects such as a spanner, a crowbar and the like are often used for pressing the piston ring in the process of installing the piston ring, so that the piston ring is embedded into a piston groove of the piston body, and the excircle of the piston ring is ensured to be smaller than the cylinder, so that the piston ring can be installed. However, in the installation process, a hard object is often scratched or the working surface of the piston ring is scratched, so that the use effect and the service life of the piston ring are affected, or the piston ring needs to be disassembled and replaced and installed again, the operation time is greatly prolonged, and the inspection and maintenance cost is increased; if the piston ring is pressed by hands or soft objects, the hands are easily injured or the soft objects are easily brought into the cylinder by the piston ring.

SUMMERY OF THE UTILITY MODEL

The utility model provides an above-mentioned technical problem, provide a piston ring installs appurtenance fast, have fast, convenient characteristics in installing the piston ring groove with the piston ring.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the utility model provides a piston ring installs appurtenance fast, includes piston snap ring, adjusts pole and fastening nut, is provided with the through-hole on two lugs of piston snap ring opening part respectively, adjusts the pole and passes through-hole and both ends connection fastening nut on two lugs.

Compared with the prior art, the beneficial effects of the utility model are that:

1) after the auxiliary tool for rapidly installing the piston ring is used, the problem that the piston ring is easily scratched and damaged in the installation process can be solved, and the installation efficiency and the installation quality are effectively improved. In addition, according to the difference of piston ring model, change corresponding piston snap ring, can adapt to the installation demand to the piston ring of different diameters.

2) The auxiliary tool for quickly installing the piston ring is simple in structure and convenient to use, effectively shortens the operation time, reduces the workload and the maintenance cost, and has good economic and social benefits.

Furthermore, the adjusting rod is a full-thread screw rod, and the fastening nut is provided with an internal thread matched with the adjusting rod.

Further, the inner diameter of the piston snap ring in a natural state is larger than the outer diameter of the piston ring in the natural state.

Further, when the two lifting lugs of the piston clamping ring are completely closed, the inner diameter of the piston clamping ring is smaller than the outer diameter of the piston ring groove on the piston.

Furthermore, the piston snap ring is made of flat steel.

Drawings

Fig. 1 is a schematic structural view of the auxiliary tool for rapidly installing the middle piston ring.

Fig. 2 is a schematic view of the working state of the auxiliary tool for rapidly installing the middle piston ring.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, an auxiliary tool for quickly mounting a piston ring includes a piston snap ring 1, an adjusting rod 2 and a fastening nut 3, through holes are respectively formed on two lifting lugs at an opening of the piston snap ring 1, the adjusting rod 2 passes through the through holes formed in the two lifting lugs, and two ends of the adjusting rod are connected with the fastening nut 3. The aperture of the through hole at the lifting lug of the piston clamping ring 1 is slightly larger than the outer diameter of the adjusting rod 2, and is also smaller than the outer diameter of the fastening nut 3.

The adjusting rod 2 is a full-thread screw rod, and the fastening nut 3 is provided with an internal thread matched with the adjusting rod 2.

The inner diameter of the piston snap ring 1 in a natural state is larger than the outer diameter of the piston ring 4 in the natural state, the piston snap ring 1 in the natural state means that the piston snap ring 1 is free from external acting force, the inner diameter keeps the natural state unchanged, the piston ring 4 in the natural state means that the piston ring 4 is free from external force, and the inner diameter keeps the natural state unchanged.

When the two lifting lugs of the piston clamping ring 1 are completely closed, the inner diameter of the piston clamping ring 1 is smaller than the outer diameter of a piston ring groove on the piston 5, so that the piston ring 4 is completely embedded into the piston ring groove on the piston 5.

The piston snap ring 1 is made of flat steel.

The working principle is as follows: adjust fastening nut 3 and make the internal diameter of piston snap ring 1 be in suitable size, set piston ring 4 to piston 5 on, set piston snap ring 1 to the 4 outsides of piston ring, adjust two fastening nut 3 toward the motion of relative direction, drive two lugs of piston snap ring 1 and produce the displacement, make piston snap ring 1's internal diameter diminish, it contracts to the piston ring inslot that gets into on the piston 5 to drive piston ring 4, make piston ring 4 external diameter be less than the cylinder internal diameter, promote piston 5 to drive piston ring 4 and remove toward the cylinder direction, piston snap ring 1 can not get into in the cylinder because reasons such as thickness and regulation pole, make piston ring 4 and piston snap ring 1 produce relative displacement, until piston ring 4 does not sink into the cylinder completely, piston ring 4 installs the completion promptly. And continuously pushing the piston 5 to move continuously into the cylinder until the piston 5 is completely immersed into the cylinder, and taking down the auxiliary tool.

The utility model provides an appurtenance of installation piston ring can make different specifications according to the model size of the piston ring of job site, selects the appurtenance of corresponding specification according to the difference of the piston ring model of needs operation, installs the piston ring fast under the prerequisite of guaranteeing safety and installation quality.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (5)

1. The utility model provides a quick installation appurtenance of piston ring which characterized in that, includes the piston snap ring, adjusts pole and fastening nut, is provided with the through-hole on two lugs of piston snap ring opening part respectively, adjusts the pole and passes through-hole and both ends connection fastening nut on two lugs.

2. The piston ring quick installation auxiliary tool of claim 1, wherein the adjusting rod is a full-thread lead screw, and the fastening nut is provided with an internal thread matched with the adjusting rod.

3. The piston ring quick installation aid of claim 1, wherein the piston ring has a natural inner diameter greater than an outer diameter of the piston ring.

4. The piston ring quick installation auxiliary tool as claimed in claim 1, wherein the piston ring has an inner diameter smaller than an outer diameter of the piston ring groove of the piston when the two lifting lugs of the piston ring are completely closed.

5. An auxiliary tool for rapidly installing a piston ring as claimed in any one of claims 1 to 4, wherein the piston ring is made of flat steel.

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