CN209800111U - Screw hidden type assembled piston - Google Patents
Screw hidden type assembled piston Download PDFInfo
- Publication number
- CN209800111U CN209800111U CN201920372167.9U CN201920372167U CN209800111U CN 209800111 U CN209800111 U CN 209800111U CN 201920372167 U CN201920372167 U CN 201920372167U CN 209800111 U CN209800111 U CN 209800111U
- Authority
- CN
- China
- Prior art keywords
- screw
- piston
- pin shaft
- hole
- installation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a hidden piston of assembling of screw, it includes: screw, piston base member and round pin axle installation cover, piston base member inner wall evagination is provided with the collar, round pin axle installation cover symmetry sets up the below at the collar, round pin axle installation cover top is provided with the fixing base with the laminating of collar bottom surface, the indent is provided with the heavy annular that subtracts who is located the collar below on the piston base member inner wall, fixing base one end is provided with the arc infill panel that extends to in the heavy annular that subtracts, be provided with the screw hole that is located the fixing base top on the collar, round pin axle mounting hole upper wall is provided with the shoulder hole with the screw hole is endocentric, the screw sets up in the shoulder hole and is connected with the screw hole. Hidden piston of assembling of screw, through the cooperation that subtracts heavy annular and arc infill panel, carry out the upper and lower spacing of round pin axle installation cover and fixing base, the screw is hidden in the shoulder hole, utilizes the round pin axle to carry on spacingly, has promoted stability in use.
Description
Technical Field
The utility model relates to a piston field especially relates to a hidden piston of assembling of screw.
Background
The piston is an indispensable important component of the engine. In recent years, the engine has been strengthened more and more, and the engine speed, the average effective pressure and the piston average speed have been improved more and more than before, so that the thermal load and the mechanical load of the engine have been increased. Due to the important function of the piston in the engine, the design and the manufacture of the piston are greatly changed and improved, so that the piston can meet the emission standard with high requirements in the real society.
A pin shaft seat for fixing a pin shaft is usually arranged in the piston, and the piston and the pin shaft seat are integrally cast with aluminum. The piston of the integrated cast aluminum overall structure is high in strength, but the pin shaft and the pin shaft seat cannot be detached for maintenance, and the later-stage use cost is high.
In addition, in order to reduce the dead weight of the piston, the skirt of the piston should be as small as possible, but the installation of the pin shaft is difficult to achieve with a small skirt of the piston.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hidden piston of assembling of screw reduces the dead weight, promotes round pin axle installation convenience.
To achieve the purpose, the utility model adopts the following technical proposal:
A screw concealed sectional piston comprising: the piston comprises a screw, a piston base body and a pin shaft installation sleeve, wherein an installation ring is arranged on the inner wall of the piston base body in an outward protruding mode, the pin shaft installation sleeve is symmetrically arranged below the installation ring, a pin shaft installation hole is transversely formed in the pin shaft installation sleeve, a fixed seat attached to the bottom surface of the installation ring is arranged at the top of the pin shaft installation sleeve, a lightening ring groove located below the installation ring is arranged on the inner wall of the piston base body in an inward concave mode, an arc-shaped filling plate extending into the lightening ring groove is arranged at one end of the fixed seat, a threaded hole located above the fixed seat is formed in the installation ring, a stepped hole concentric with the threaded hole is formed in the upper wall of the pin shaft installation hole.
And a circle of snap spring mounting grooves are respectively arranged in the pin shaft mounting holes.
And the lower wall of the pin shaft mounting hole is provided with a dismounting through hole concentric with the stepped hole.
And the thickness of the arc-shaped filling plate corresponds to the width of the weight reduction ring groove.
The fixing seat, the arc-shaped filling plate and the pin shaft mounting sleeve are of an integrated cast aluminum structure.
Wherein, the excircle of the piston base body is provided with a gas ring groove and an oil ring groove.
The utility model has the advantages that: the utility model provides a hidden piston of assembling of screw, the round pin axle installation cover of hoist and mount below the collar has been adopted very much, be favorable to reducing the structure of piston skirt portion, reduce the dead weight, utilize the structural strength of collar reinforcing piston base body, through the cooperation that subtracts heavy annular and arc infill panel, it is spacing from top to bottom to carry out round pin axle installation cover and fixing base, and utilize the screw to fasten, avoid the problem of the horizontal roll-off of fixing base, and the screw is hidden in the shoulder hole, it is spacing to utilize the round pin axle, only take off the round pin axle and just can dismantle, the problem that the screw drops in the use has been avoided, and the use stability is promoted.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the specific embodiment with reference to fig. 1.
The screw concealed type split piston shown in fig. 1 comprises: the piston comprises a screw 8, a piston base body 1 and a pin shaft mounting sleeve 2, wherein a mounting ring 7 is convexly arranged on the inner wall of the piston base body 1, the piston base body 1 and the mounting ring 7 are of an integrated cast aluminum structure, the structural strength of the piston base body 1 is enhanced by the mounting ring 7, the weight is light, and the whole structure is firm.
The pin shaft mounting sleeve 2 is symmetrically arranged below the mounting ring 7, and the bottom of the pin shaft mounting sleeve 2 is located below the piston base body 1, so that the skirt structure of the piston base body 1 is reduced, and the dead weight is reduced. An air ring groove 5 and an oil ring groove 4 are arranged on the outer circle of the piston base body 1, the air ring and the oil ring are installed respectively, and the air tightness of the piston motion is improved.
The hinge pin mounting sleeve 2 is internally and transversely provided with a hinge pin mounting hole 13, the hinge pin mounting hole 13 is internally and respectively provided with a circle of clamp spring mounting grooves 3, and after the two ends of the hinge pin extend into the hinge pin mounting hole 13, clamp springs are respectively mounted in the clamp spring mounting grooves 3, so that the two ends of the hinge pin are limited, and axial sliding is avoided.
The top of the pin shaft mounting sleeve 2 is provided with a fixed seat 14 attached to the bottom surface of the mounting ring 7, a weight reduction ring groove 12 located below the mounting ring 7 is concavely arranged on the inner wall of the piston base body 1, one end of the fixed seat 14 is provided with an arc-shaped filling plate 9 extending into the weight reduction ring groove 12, the thickness of the arc-shaped filling plate 9 corresponds to the groove width of the weight reduction ring groove 12, the matching is tight, the upper and lower limiting of the fixed seat 14 and the pin shaft mounting sleeve 2 is realized, and the stability of the piston during movement is improved.
The fixing seat 14, the arc-shaped filling plate 9 and the pin shaft mounting sleeve 2 are of an integrated cast aluminum structure, are made of the same material as the piston base body 1, have good thermal expansion uniformity, and can be replaced during maintenance respectively by adopting a split structure with the piston base body 1, so that the cost is reduced.
Be provided with the screw hole 6 that is located the fixing base 14 top on the collar 7, round pin axle mounting hole 13 upper wall is provided with the concentric shoulder hole 11 with screw hole 6, screw 8 sets up in shoulder hole 11 and is connected with screw hole 6, and the installation back, screw 8 is hidden nature good to utilize the round pin axle to carry on spacingly, only take off the round pin axle in round pin axle mounting hole 13 and just can carry out screw 8's dismantlement, avoided the problem that screw 8 drops in the use, promoted stability in use.
The lower wall of the pin shaft mounting hole 13 is provided with a dismounting through hole 10 concentric with the stepped hole 11, the dismounting through hole 10 is positioned at the bottom, the operation is convenient, and after the pin shaft is taken down, a screwdriver is used for mounting and dismounting the screw 8 through the dismounting through hole 10.
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 (6)
1. The utility model provides a piston is assembled to screw is hidden which characterized in that includes: the piston comprises a screw, a piston base body and a pin shaft installation sleeve, wherein an installation ring is arranged on the inner wall of the piston base body in an outward protruding mode, the pin shaft installation sleeve is symmetrically arranged below the installation ring, a pin shaft installation hole is transversely formed in the pin shaft installation sleeve, a fixed seat attached to the bottom surface of the installation ring is arranged at the top of the pin shaft installation sleeve, a lightening ring groove located below the installation ring is arranged on the inner wall of the piston base body in an inward concave mode, an arc-shaped filling plate extending into the lightening ring groove is arranged at one end of the fixed seat, a threaded hole located above the fixed seat is formed in the installation ring, a stepped hole concentric with the threaded hole is formed in the upper wall of the pin shaft installation hole.
2. The screw-concealed type assembled piston according to claim 1, wherein a circle of snap spring mounting grooves are respectively arranged in the pin shaft mounting holes.
3. The screw-concealed type assembled piston according to claim 1, wherein a mounting and dismounting through hole concentric with the stepped hole is formed in the lower wall of the pin shaft mounting hole.
4. The screw-concealed type segment piston according to claim 1, wherein the thickness of the arc-shaped packing plate corresponds to a groove width of the weight-reduction ring groove.
5. The screw-concealed type assembled piston according to claim 1, wherein the fixing seat, the arc-shaped filling plate and the pin shaft mounting sleeve are of an integrated cast aluminum structure.
6. The screw-concealed type assembled piston according to claim 1, wherein a gas ring groove and an oil ring groove are provided on an outer circumference of the piston base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920372167.9U CN209800111U (en) | 2019-03-22 | 2019-03-22 | Screw hidden type assembled piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920372167.9U CN209800111U (en) | 2019-03-22 | 2019-03-22 | Screw hidden type assembled piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209800111U true CN209800111U (en) | 2019-12-17 |
Family
ID=68826075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920372167.9U Expired - Fee Related CN209800111U (en) | 2019-03-22 | 2019-03-22 | Screw hidden type assembled piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209800111U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645798A (en) * | 2022-03-14 | 2022-06-21 | 北京理工大学 | Piston pin hole bush structure |
-
2019
- 2019-03-22 CN CN201920372167.9U patent/CN209800111U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645798A (en) * | 2022-03-14 | 2022-06-21 | 北京理工大学 | Piston pin hole bush structure |
| CN114645798B (en) * | 2022-03-14 | 2023-02-28 | 北京理工大学 | Piston pin hole bush structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209800111U (en) | Screw hidden type assembled piston | |
| CN210003407U (en) | split pulling-fixing expansion-resisting piston | |
| CN207747669U (en) | A kind of one wheel | |
| CN209800105U (en) | Pin shaft seat split assembled piston | |
| CN209800106U (en) | Weight-reduction split piston with low maintenance cost | |
| CN209781059U (en) | Split piston with conveniently-disassembled pin shaft | |
| CN210003415U (en) | expansion-resistant pistons with enhanced heat dissipation | |
| CN212959510U (en) | Ball head assembly | |
| CN212177288U (en) | Assembly piston based on shaft sleeve | |
| CN209800109U (en) | Piston with detachable friction reducing plate | |
| CN212337471U (en) | Cylinder hole continuous casting integrated composite cylinder cover structure | |
| CN209800107U (en) | Pin-connected panel lightweight antifriction piston | |
| CN211174365U (en) | Cylinder body structure capable of reducing S deformation of cylinder sleeve | |
| CN209800108U (en) | Piston with arc-shaped antifriction plate | |
| CN209855917U (en) | Piston capable of avoiding pin shaft from sliding | |
| CN212202269U (en) | Assembled piston beneficial to oil ring disassembly and assembly | |
| CN212202274U (en) | Assembly piston based on clamp spring | |
| CN216200431U (en) | Cold extrusion high accuracy gasoline engine gudgeon pin | |
| CN209855920U (en) | Assembled piston based on movable anti-expansion ring | |
| CN206694129U (en) | A kind of Separated rapid packaged piston | |
| CN210003412U (en) | stereo anti-expansion cast aluminum piston | |
| CN217401023U (en) | High-sealing-performance light energy-saving piston | |
| CN211975199U (en) | Split type piston cooling and lubricating assembly | |
| CN212202275U (en) | Assembled piston convenient for oil ring disassembly and assembly | |
| CN217999716U (en) | Crank connecting rod assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191217 Termination date: 20200322 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |