CN211975199U

CN211975199U - Split type piston cooling and lubricating assembly

Info

Publication number: CN211975199U
Application number: CN202020590234.7U
Authority: CN
Inventors: 王艳利; 李世清; 李新
Original assignee: Suqian Yiyou Industry And Trade Co ltd
Current assignee: Suqian Yiyou Industry And Trade Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-11-20
Anticipated expiration: 2030-04-20

Abstract

The utility model discloses a split type piston cooling and lubricating subassembly, it includes: piston base member and key seat lubricating assembly, key seat lubricating assembly includes key seat, spacer sleeve and retainer plate, the retainer plate sets up in piston base member bottom with one heart, the spacer sleeve sets up on fixed ring piece with one heart and the top upwards extends to the piston base member in, leave the clearance and form annular oil storage tank between piston base member inner wall and the spacer outer wall, be provided with the inlet port of directional annular oil storage tank in the oil ring groove, the key seat symmetry sets up in fixed ring piece bottom, be provided with the pinhole in the key seat, the key seat bottom is provided with upwards runs through the pinhole and extends to the oil drain hole in annular oil storage tank. Split type piston cooling and lubrication subassembly, production and maintenance are with low costs, through the inlet port with the leading-in oil storage tank of lubricating oil, the leading-in pinhole of rethread oil drain hole lubricates the round pin axle to take away the heat on the way, cool off.

Description

Split type piston cooling and lubricating assembly

Technical Field

The utility model relates to a piston technical field especially relates to a split type piston cooling and lubrication subassembly.

Background

The automobile piston is made of various materials, wherein the aluminum alloy piston is light in weight, is beneficial to reducing the energy consumption of an engine and is widely used. The piston of the automobile is used for bearing gas pressure in an automobile engine, a connecting rod is driven by a piston pin to drive a crankshaft to rotate, and the top of the piston is also a component of a combustion chamber, so that the piston occupies an extremely important position when the engine runs.

In order to enhance the lubrication and cooling of the pin shaft in the piston pin hole by the lubricating oil, the design of an oil storage cavity and a lubricating and cooling oil way can be performed, the oil storage cavity and the lubricating and cooling oil way are difficult to machine in the piston, the machining process is complex, the production cost is high, the whole pin shaft needs to be replaced when damaged, and the maintenance and replacement cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a split type piston cooling and lubrication subassembly realizes the lubrication and the cooling of round pin axle, reduces the cost of maintaining the change.

To achieve the purpose, the utility model adopts the following technical proposal:

a split piston cooling and lubrication assembly comprising: piston base member and key seat lubricating assembly, key seat lubricating assembly includes key seat, spacer sleeve and retainer plate, the retainer plate sets up in piston base member bottom with one heart, the spacer sleeve sets up on retainer plate with one heart and the top upwards extends to the piston base member, leave the clearance and form annular oil storage tank between piston base inner wall and the spacer outer wall, the excircle of piston base member sets up the oil ring groove, be provided with the inlet port of directional annular oil storage tank in the oil ring groove, the key seat symmetry sets up in retainer plate bottom, be provided with the pinhole in the key seat, the key seat bottom is provided with upwards runs through the pinhole and extends to the oil drain hole of annular oil storage tank.

Wherein, the fixed ring piece is provided with a screw connected with the piston base body.

And the top of the excircle of the isolating sleeve is concentrically provided with a circle of isolating convex ring which is contacted with the inner wall of the piston base body.

The pin boss, the isolation sleeve, the isolation convex ring and the fixed ring piece are of an integrated cast aluminum structure.

Wherein, the excircle of the piston base body is provided with a gas ring groove positioned above the oil ring groove.

And a clamp spring mounting groove is arranged in the pin hole.

The utility model has the advantages that: the utility model provides a split type piston cooling lubrication assembly, piston base member and key seat lubrication assembly adopt the components of a whole that can function independently structure, can change alone after damaging, and production and maintenance are with low costs, and the inlet port through in the oil ring groove is with the leading-in oil storage tank of partial lubricating oil, and the rethread oil drain hole is lubricated the round pin axle in the pinhole to take away the heat of piston base member and key seat, cool off.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the pin boss lubricating assembly of fig. 1.

Detailed Description

The technical solution of the present invention is further explained by the specific embodiment with reference to fig. 1 to fig. 2.

The split piston cooling and lubricating assembly shown in fig. 1 comprises: piston base member 1 and key seat lubricating assembly, set up oil ring groove 8 on the piston base member 1 excircle, carry out the installation of combination oil ring, during the piston motion, strike off the unnecessary lubricating oil of cylinder body inner wall through combination oil ring. And 2 gas ring grooves 9 positioned above the oil ring groove 8 are formed in the outer circle of the piston base body 1, so that the gas rings are installed, and the gas tightness is improved.

The pin boss lubricating component comprises a pin boss 5, an isolation sleeve 10 and a fixed ring piece 12, as shown in fig. 2, the fixed ring piece 12 is concentrically arranged at the bottom of the

piston base body

1, 4 screws 6 connected with the piston base body 1 are arranged on the fixed ring piece 12, the structure is firm, the disassembly and assembly are convenient, the individual replacement after the piston base body 1 or the pin boss lubricating component is damaged is facilitated, and the maintenance cost is reduced.

The separation sleeve 10 is concentrically arranged on the fixed ring sheet 12 and the top upwards extends to the piston base body 1, a gap is left between the inner wall of the piston base body 1 and the outer wall of the separation sleeve 10 to form an annular oil storage tank 2, an oil inlet hole 3 pointing to the annular oil storage tank 2 is arranged in the oil ring groove 8, and partial lubricating oil is guided into the oil storage tank 2 through the oil inlet hole 3 in the oil ring groove 8, so that temporary storage is realized.

The pin seat 5 is symmetrically arranged at the bottom of the fixed ring piece 12, and the pin hole 4 is arranged in the pin seat 5 for mounting the pin shaft. And a clamp spring mounting groove 7 is arranged in the pin hole 4, so that a clamp spring is mounted, and the limit of the end part of the pin shaft is realized.

In this embodiment, the bottom of the pin boss 5 is provided with an oil drain hole 13 which penetrates through the pin hole 4 upward and extends to the annular oil storage groove 2, lubricating oil in the annular oil storage groove 2 is guided into the pin hole 4 through the oil drain hole 13, so that lubrication and wear reduction of the pin shaft in the pin hole 4 are realized, the lubricating oil finally flows out of the pin hole 4 and falls down, and heat is taken away to realize cooling of the piston base body 1, the pin boss 5 and other components.

The top of the excircle of the isolation sleeve 10 is concentrically provided with a circle of isolation convex ring 11 which is contacted with the inner wall of the piston base body 1, so that the top of the annular oil storage tank 2 is sealed, and the structural stability of the isolation sleeve 10 is improved. The pin boss 5, the isolation sleeve 10, the isolation convex ring 11 and the fixed ring piece 12 are of an integrated cast aluminum structure, and are light in self weight, high in structural strength and good in heat conductivity.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A split piston cooling and lubrication assembly, comprising: piston base member and key seat lubricating assembly, key seat lubricating assembly includes key seat, spacer sleeve and retainer plate, the retainer plate sets up in piston base member bottom with one heart, the spacer sleeve sets up on retainer plate with one heart and the top upwards extends to the piston base member, leave the clearance and form annular oil storage tank between piston base inner wall and the spacer outer wall, the excircle of piston base member sets up the oil ring groove, be provided with the inlet port of directional annular oil storage tank in the oil ring groove, the key seat symmetry sets up in retainer plate bottom, be provided with the pinhole in the key seat, the key seat bottom is provided with upwards runs through the pinhole and extends to the oil drain hole of annular oil storage tank.

2. The split piston cooling and lubricating assembly according to claim 1, wherein the fixing ring plate is provided with a screw connected with the piston base body.

3. The split piston cooling and lubricating assembly according to claim 1, wherein a ring of isolating convex rings in contact with the inner wall of the piston base body are concentrically arranged at the top of the outer circle of the isolating sleeve.

4. The split piston cooling and lubricating assembly of claim 3, wherein the pin bosses, the isolating sleeves, the isolating collars and the retaining ring segments are of an integrated cast aluminum structure.

5. The split piston cooling and lubricating assembly of claim 1, wherein the outer circumference of the piston base body is provided with a gas ring groove above the oil ring groove.

6. The split piston cooling and lubricating assembly of claim 1, wherein a snap spring mounting groove is disposed in the pin hole.