CN204344906U - A kind of piston - Google Patents

A kind of piston Download PDF

Info

Publication number
CN204344906U
CN204344906U CN201420746592.7U CN201420746592U CN204344906U CN 204344906 U CN204344906 U CN 204344906U CN 201420746592 U CN201420746592 U CN 201420746592U CN 204344906 U CN204344906 U CN 204344906U
Authority
CN
China
Prior art keywords
piston body
hole
micro
piston
utility
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
Application number
CN201420746592.7U
Other languages
Chinese (zh)
Inventor
张建平
周国强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiangtan University
Original Assignee
Xiangtan University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xiangtan University filed Critical Xiangtan University
Priority to CN201420746592.7U priority Critical patent/CN204344906U/en
Application granted granted Critical
Publication of CN204344906U publication Critical patent/CN204344906U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model relates to a kind of piston, comprise piston body, the neutral position of described piston body offers center hole, the outer surface circumferencial direction of described piston body offers several circular grooves, the inwall of described circular groove offers micro-hole to the centerline direction of piston body, micro-hole is uniformly distributed along the circumferencial direction of piston body, and described micro-hole is blind hole; The end face of described piston body offers annular groove, and the edge of described piston body is provided with fillet.The utility model structure is simple, and stroke is stablized, function admirable; Be provided with annular groove by the end being arranged on piston body, the direction of liquid stream can be changed, streamline is stablized, improves usability; By offering micro-hole, the particle in fluid can be stored, avoiding polluting, preventing stuck.

Description

A kind of piston
Technical field
The utility model relates to piston technical field, particularly relates to a kind of piston on oil hydraulic cylinder.
Background technique
Hydraulic system has many outstanding advantages, and therefore its application widely, as the plastic processing machinery, press, lathe etc. of general industry; Engineering machinery in running mechanism, building machinery, farm machinery, automobile etc.In hydraulic system, conventional hydraulic machinery is oil hydraulic cylinder, and hydraulic energy is changed into mechanical energy, does the hydraulic actuator of straight reciprocating motion (or oscillating motion) by oil hydraulic cylinder.Its structure is simple, reliable operation.When realizing to-and-fro motion with it, can speed reducer be removed from, and there is no drive gap, stable movement, therefore be used widely in the hydraulic system of various machinery.The pressure reduction on oil hydraulic cylinder ouput force and piston effective area and both sides thereof is directly proportional; Oil hydraulic cylinder is made up of cylinder barrel and cylinder cap, piston and piston rod, seal arrangement, damping device and venting gas appliance substantially.
Existing piston in use, because liquid stream is turbulent flow, causes streamline unstable, affects the performance of whole oil hydraulic cylinder, because the particle in hydraulic oil exists, easily make piston be stuck on the inwall of oil hydraulic cylinder.
Model utility content
The utility model, in order to overcome deficiency of the prior art, provides a kind of piston.
The utility model is achieved through the following technical solutions:
A kind of piston, comprise piston body, the neutral position of described piston body offers center hole, the outer surface circumferencial direction of described piston body offers several circular grooves, the inwall of described circular groove offers micro-hole to the centerline direction of piston body, micro-hole is uniformly distributed along the circumferencial direction of piston body, and described micro-hole is blind hole; The end face of described piston body offers annular groove.
As optimal technical scheme of the present utility model, the edge of described piston body is provided with fillet.
As optimal technical scheme of the present utility model, the quantity of described circular groove is three, and the distance between adjacent circular groove is equal.
As optimal technical scheme of the present utility model, the cross section of described circular groove is semicircle.
As optimal technical scheme of the present utility model, the cross section of described annular groove is semicircle.
As optimal technical scheme of the present utility model, the diameter of described micro-hole is 0.5mm, and the degree of depth is 0.5mm.
Compared with prior art, the beneficial effects of the utility model are: the utility model structure is simple, and stroke is stablized, function admirable; Be provided with annular groove by the end being arranged on piston body, the direction of liquid stream can be changed, streamline is stablized, improves usability; By offering micro-hole, the particle in fluid can be stored, avoiding polluting, preventing stuck.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model;
Fig. 2 is plan view of the present utility model;
Fig. 3 is axonometric drawing of the present utility model.
In figure: 1-piston body; 2-center hole; 3-circular groove; 4-micro-hole; 5-annular groove; 6-fillet.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is plan view of the present utility model, and Fig. 2 is plan view of the present utility model, and Fig. 3 is axonometric drawing of the present utility model.
Described a kind of piston, comprise piston body 1, the neutral position of described piston body 1 offers center hole 2, the outer surface circumferencial direction of described piston body 1 offers several circular grooves 3, the inwall of described circular groove 3 offers micro-hole 4 to the centerline direction of piston body 1, and micro-hole 4 is uniformly distributed along the circumferencial direction of piston body 1, and described micro-hole 4 is blind hole, the diameter of described micro-hole 4 is 0.5mm, and the degree of depth is 0.5mm.The end face of described piston body 1 offers annular groove 5, and the edge of described piston body 1 is provided with fillet 6.
In the present embodiment, the quantity of described circular groove 3 is three, and the distance between adjacent circular groove 3 is equal, and the cross section of described circular groove 3 is semicircle, and the cross section of described annular groove 5 is semicircle.
Be provided with annular groove by the end being arranged on piston body, the direction of liquid stream can be changed, streamline is stablized, improves usability; By offering micro-hole, the particle in fluid can be stored, avoiding polluting, preventing stuck.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.

Claims (6)

1. a piston, comprise piston body (1), the neutral position of described piston body (1) offers center hole (2), the outer surface circumferencial direction of described piston body (1) offers several circular grooves (3), it is characterized in that: the inwall of described circular groove (3) offers micro-hole (4) to the centerline direction of piston body (1), micro-hole (4) is uniformly distributed along the circumferencial direction of piston body (1), and described micro-hole (4) is blind hole; The end face of described piston body (1) offers annular groove (5).
2. a kind of piston according to claim 1, is characterized in that: the edge of described piston body (1) is provided with fillet (6).
3. a kind of piston according to claim 1, is characterized in that: the quantity of described circular groove (3) is three, and the distance between adjacent circular groove (3) is equal.
4. a kind of piston according to claim 1, is characterized in that: the cross section of described circular groove (3) is for semicircle.
5. a kind of piston according to claim 1, is characterized in that: the cross section of described annular groove (5) is for semicircle.
6. a kind of piston according to claim 1, is characterized in that: the diameter of described micro-hole (4) is 0.5mm, and the degree of depth is 0.5mm.
CN201420746592.7U 2014-12-03 2014-12-03 A kind of piston Expired - Fee Related CN204344906U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420746592.7U CN204344906U (en) 2014-12-03 2014-12-03 A kind of piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420746592.7U CN204344906U (en) 2014-12-03 2014-12-03 A kind of piston

Publications (1)

Publication Number Publication Date
CN204344906U true CN204344906U (en) 2015-05-20

Family

ID=53228176

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420746592.7U Expired - Fee Related CN204344906U (en) 2014-12-03 2014-12-03 A kind of piston

Country Status (1)

Country Link
CN (1) CN204344906U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112780526A (en) * 2020-12-31 2021-05-11 江苏恒浩机电制造有限公司 Easily-machined piston for refrigerator compressor and manufacturing process thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112780526A (en) * 2020-12-31 2021-05-11 江苏恒浩机电制造有限公司 Easily-machined piston for refrigerator compressor and manufacturing process thereof
CN112780526B (en) * 2020-12-31 2022-03-04 江苏恒浩机电制造有限公司 Easily-machined piston for refrigerator compressor and manufacturing process thereof

Similar Documents

Publication Publication Date Title
CN204646853U (en) A kind of column oil hydraulic cylinder
CN203146480U (en) Rod-less cavity side buffer structure for hydraulic cylinder
CN204419752U (en) A kind of oil hydraulic cylinder based on Surface Texture hydrodynamic lubrication performance
CN204140858U (en) A kind of noise reduction hydraulic piston assembly
CN204344906U (en) A kind of piston
CN204900407U (en) Seal structure of pneumatic cylinder cylinder cap
CN204344567U (en) A kind of without sealing servo-cylinder
CN204140857U (en) A kind of piston being convenient to install
CN204610672U (en) Air spring piston
CN203926786U (en) Angle lip shape rubber seal
CN203926207U (en) A kind of piston assembly with surface micro-moulding structure
CN204755462U (en) Pneumatic cylinder
CN103697184B (en) A kind of through-flow structure of valve port of slide valve
CN203098817U (en) Thrust washer for half axle gear
CN205078545U (en) Bounce cylinder
CN204436946U (en) The permanent throttling buffering mechanism of a kind of oil hydraulic cylinder
CN204436939U (en) A kind of novel hydraulic cylinder piston
CN203962543U (en) A kind of oil hydraulic cylinder
CN204900388U (en) Pneumatic cylinder cylinder end
CN204061096U (en) A kind of air pump piston special-shaped seal ring
CN204312449U (en) A kind of vehicle oil hydraulic cylinder
CN205401766U (en) Cone valve formula direction valve
CN204312446U (en) A kind of Bidirectional piston type oil cylinder
CN203948370U (en) A kind of piston assembly
CN204253502U (en) Cylinder piston structure-improved

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150520

Termination date: 20171203

CF01 Termination of patent right due to non-payment of annual fee