CN104373411A - Diaphragm-type one-way air cylinder - Google Patents
Diaphragm-type one-way air cylinder Download PDFInfo
- Publication number
- CN104373411A CN104373411A CN201410624560.4A CN201410624560A CN104373411A CN 104373411 A CN104373411 A CN 104373411A CN 201410624560 A CN201410624560 A CN 201410624560A CN 104373411 A CN104373411 A CN 104373411A
- Authority
- CN
- China
- Prior art keywords
- push rod
- shell
- diaphragm
- cap
- spring
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/10—Characterised by the construction of the motor unit the motor being of diaphragm type
Abstract
The invention relates to the technical field of machine tool fixtures, in particular to a diaphragm-type one-way air cylinder. A shell and a shell cover are connected through a plurality of fixing bolts evenly distributed on an outer rotating face, an elastic diaphragm is fixedly clamped between the shell and the shell cover, and a pipe joint penetrating through the shell cover is arranged in the center of the front end of the shell cover; a sealing sleeve is arranged on a through hole in the tail end of the shell and provided with a push rod; one end of the push rod stretches into a cavity formed by the shell and the elastic diaphragm, and the other end of the push rod stretches out of the sealing sleeve; an annular thickening part is arranged at the end, making contact with the push rod, of the elastic diaphragm; a spring base is arranged at the end, making contact with the annular thickening part, of the push rod and is spherical; at least one spring is arranged between the spring base and the inner wall of the shell in a sleeved mode; exhaust through holes are formed in the wall face of the cavity formed by the shell and the elastic diaphragm; gas leakage is reduced, and the service life of the air cylinder is prolonged.
Description
Technical field
The present invention relates to machine tool fixture technical field, particularly relate to a kind of diaphragm-type one-way cylinder.
Background technique
Due to traditional piston type cylinder, gas easily leaks from air chamber working portion, and the seal ring of piston-type actuator is shorter for working life, and under poor environment, such as: malaria or lubricant oil undersupply, seal ring and cylinder wall in transmission device can be caused to wear and tear faster.
Summary of the invention
The object of this invention is to provide a kind of reduction Leakage Gas, improve a kind of diaphragm-type one-way cylinder in cylinder working life.
Technological scheme of the present invention is as follows:
A kind of diaphragm-type one-way cylinder, comprise housing and cap, described housing is connected by several fixing bolts uniform on outer turning surface with cap; Admittedly accompany flexible sheet between described housing and cap, described cap front center is provided with the pipe joint running through cap; The through hole of described shell end is provided with stuffing box gland, is provided with push rod in sealing cover; One end of described push rod is stretched in the cavity that housing and flexible sheet formed, and the other end stretches out outside stuffing box gland; The end that described flexible sheet contacts with push rod is provided with annular thickening part; Described push rod and annular thickening part contact jaw are provided with spring seat, and this spring seat is ball-type; At least one spring is arranged with between described spring seat and inner walls; The cavity wall that described housing and flexible sheet are formed is provided with exhaust hole.
Described spring has two; And two spring cross sections are concentric circles.Increase spring reaction force, accelerate the speed that spring seat and diaphragm get back to home position.
The invention has the beneficial effects as follows: effectively eliminate the leakage of air from air chamber working portion, and structure is simpler, cheap, lightweight, strengthen diaphragm longer service life.
Accompanying drawing explanation
By the detailed description below in conjunction with accompanying drawing, aforesaid and other object, the feature and advantage of the present invention will become apparent.
Wherein: Fig. 1 is structural representation of the present invention;
In accompanying drawing, 1 is housing, and 2 is cap, and 3 is fixing bolt, and 4 is flexible sheet, and 5 is pipe joint, and 6 is through hole, and 7 is stuffing box gland, and 8 is push rod, and 9 is annular thickening part, and 10 is spring seat, and 11 is exhaust hole.
Embodiment
As shown in Figure 1, a kind of diaphragm-type one-way cylinder, comprises pot shape housing 1 and basin shape cap 2, and described housing 1 is connected by several fixing bolts 3 uniform on cylindrical border with cap 2; Admittedly accompany flexible sheet 4 between described housing 1 and cap 2, described cap front center is provided with the pipe joint 5 running through cap; The through hole 6 of described shell end is provided with stuffing box gland 7, is provided with push rod 8 in sealing cover; One end of described push rod 8 is inserted in the cavity that housing and flexible sheet formed, and the other end stretches out outside stuffing box gland; The end that described flexible sheet contacts with push rod is provided with annular thickening part 9; Described push rod and annular thickening part 9 contact jaw are provided with spring seat 10, and this spring seat is ball-type; At least one spring is arranged with between described spring seat and inner walls; The cavity wall that described housing and flexible sheet are formed is provided with exhaust hole 11.
During use, pressurized air is sent in the air chamber that is made up of lid and diaphragm by pipe joint, promote diaphragm, and spring seat is moved together with push rod; When pressurized air enters air, push rod, under the effect of two springs, gets back to original position with spring seat and diaphragm.
Due to the straight line motion back and forth adopting the distortion of diaphragm to drive push rod, diaphragm and push rod end be frequent stressed friction in pushing course, causes diaphragm easily to damage; When being contacted with push rod by diaphragm, spherical spring seat snaps in annular thickening part, and active force when spring seat and film contact all acts on annular thickening part, reduces the direct strength of diaphragm, thus makes diaphragm be not easy to damage.
Preferably, described spring has two; And two spring cross sections are concentric circles.Increase spring reaction force, accelerate the speed that spring seat and diaphragm get back to home position.
Claims (2)
1. a diaphragm-type one-way cylinder, is characterized in that, comprises housing and cap, and described housing is connected by several fixing bolts uniform on outer turning surface with cap; Admittedly accompany flexible sheet between described housing and cap, described cap front center is provided with the pipe joint running through cap; The through hole of described shell end is provided with stuffing box gland, is provided with push rod in sealing cover; One end of described push rod is stretched in the cavity that housing and flexible sheet formed, and the other end stretches out outside stuffing box gland; The end that described flexible sheet contacts with push rod is provided with annular thickening part; Described push rod and annular thickening part contact jaw are provided with spring seat, and this spring seat is ball-type; At least one spring is arranged with between described spring seat and inner walls; The cavity wall that described housing and flexible sheet are formed is provided with exhaust hole.
2. a kind of diaphragm-type one-way cylinder according to claim 1, is characterized in that, described spring has two; And two spring cross sections are concentric circles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624560.4A CN104373411A (en) | 2014-11-07 | 2014-11-07 | Diaphragm-type one-way air cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624560.4A CN104373411A (en) | 2014-11-07 | 2014-11-07 | Diaphragm-type one-way air cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104373411A true CN104373411A (en) | 2015-02-25 |
Family
ID=52552513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410624560.4A Pending CN104373411A (en) | 2014-11-07 | 2014-11-07 | Diaphragm-type one-way air cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104373411A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016205548A (en) * | 2015-04-24 | 2016-12-08 | 株式会社Ihi | Diaphragm type actuator |
| CN110439874A (en) * | 2019-08-23 | 2019-11-12 | 江苏神通阀门股份有限公司 | A kind of rubber diaphragm life test air cylinder device |
| CN113507810A (en) * | 2021-09-09 | 2021-10-15 | 凯瑞电子(诸城)有限公司 | Combined electronic element shell |
-
2014
- 2014-11-07 CN CN201410624560.4A patent/CN104373411A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016205548A (en) * | 2015-04-24 | 2016-12-08 | 株式会社Ihi | Diaphragm type actuator |
| US10415461B2 (en) | 2015-04-24 | 2019-09-17 | Ihi Corporation | Diaphragm type actuator |
| CN110439874A (en) * | 2019-08-23 | 2019-11-12 | 江苏神通阀门股份有限公司 | A kind of rubber diaphragm life test air cylinder device |
| CN113507810A (en) * | 2021-09-09 | 2021-10-15 | 凯瑞电子(诸城)有限公司 | Combined electronic element shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |