CN204985144U - Starting characteristic is linear pneumatic cylinder - Google Patents
Starting characteristic is linear pneumatic cylinder Download PDFInfo
- Publication number
- CN204985144U CN204985144U CN201520659533.0U CN201520659533U CN204985144U CN 204985144 U CN204985144 U CN 204985144U CN 201520659533 U CN201520659533 U CN 201520659533U CN 204985144 U CN204985144 U CN 204985144U
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- China
- Prior art keywords
- cushion collar
- piston
- ring
- end cap
- internal thread
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- Expired - Fee Related
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Abstract
The utility model provides a starting characteristic is linear pneumatic cylinder mainly includes end cover A, end cover B, cylinder, uide bushing, piston rod, piston, scrapes the sediment ring, sealing washer, elasticity ring, cushion collar A and cushion collar B. Its characteristics are that the cushion collar of frustum shape and ball top surface makes the pneumatic cylinder present characteristic at the uniform velocity when starting. The utility model discloses a cushion collar A and the cushion collar B of frustum shape and ball top surface realize that the pneumatic cylinder presents uniform motion's linear characteristic when starting, prevent dregs of fat wearing and tearing piston through scraping the sediment ring, realize that the self -adaptation of sealing washer is sealed under placing the elasticity ring in the sealing washer.
Description
Technical field
It is linear oil hydraulic cylinder that the utility model relates to a kind of starting characteristic, particularly relates to a kind of by taper type and the cushion collar A of ball end face and cushion collar B, realizes oil hydraulic cylinder presents uniform motion linear characteristic when starting; Dregs of fat worn piston is prevented by scraping slag ring; By realizing the self-adapting seal of seal ring under elastic ring being placed in seal ring, belong to the technical research field of oil hydraulic cylinder.
Background technique
Under some operating mode of engineering machinery, needing equipment can gently at the uniform velocity when starting, to be reduced to minimum to the impact of equipment when will start, but due to the monotony of current hydraulic cylinder structure, making its effect under such conditions not be fine.
Therefore, what in use exist for existing oil hydraulic cylinder cannot reach the problem at the uniform velocity started gently, should consider from the overall structure of oil hydraulic cylinder, designs a kind of oil hydraulic cylinder meeting and at the uniform velocity start.
Summary of the invention
What the utility model in use existed for existing oil hydraulic cylinder cannot reach the problem at the uniform velocity started gently, and providing a kind of a kind of starting characteristic that can effectively solve the problem is linear oil hydraulic cylinder.
A kind of starting characteristic of the present utility model be linear oil hydraulic cylinder by the following technical solutions:
A kind of starting characteristic is linear oil hydraulic cylinder, mainly comprise end cap A, end cap B, cylinder barrel, guide sleeve, piston rod, piston, scrape slag ring, seal ring, elastic ring, cushion collar A and cushion collar B, described end cap A is provided with outside thread, end cap B is provided with internal thread and middle part has through hole, cylinder barrel one end has internal thread, one end has outside thread and homonymy has hydraulic fluid port A and hydraulic fluid port B, and end cap A and end cap B is threaded connection and is arranged on cylinder barrel; Described piston rod one end has outside thread, the other end is stretched out by end cap B through hole by guide sleeve, dust ring; Described piston has the through hole containing internal thread, piston is threaded connection installation on the piston rod, and two ends, piston side are provided with scrapes slag ring and its cross section is circular arc, and piston side Middle face has circular groove, be provided with elastic ring and seal ring in circular groove, seal ring is pressed on elastic ring; Described cushion collar A has the blind hole containing internal thread, cushion collar B has the through hole containing internal thread, cushion collar A and cushion collar B is threaded connection symmetrical installation on the piston rod centered by piston, and the taper type structure of to be end face be in the termination of cushion collar A and cushion collar B Surface of Sphere, its spherical radius is
r, the tilt angle of the conical surface is
aand the figure of merit
a=30 °.
The utility model is installed at two ends, piston side and is scraped slag ring, by this design to strike off the dregs of fat of cylinder barrel wall, prevent the dregs of fat from entering between piston and cylinder barrel wall, cause the fretting wear of piston and cylinder barrel when piston movement, and abradable seal circle and cause leakage.
The seal ring of piston is pressed on elastic ring by the utility model, is realized the self-adapting seal of seal ring by this design, namely when ring wear, by the resiliently deformable of elastic ring, by seal ring jack-up, make up the wear extent of seal ring with this, reach the effect of adjustment sealing automatically.
The termination of cushion collar A and cushion collar B is designed to the taper type structure that end face is Surface of Sphere by the utility model, realizes oil hydraulic cylinder present straight line type characteristic when starting, namely by ball end face and conical inclination by this design
adesign, make cushion collar A or cushion collar B start up period, when namely leaving buffering block set in cylinder barrel, the flow through cushion collar A or cushion collar B presents the feature at the uniform velocity increased progressively, namely when aperture is 20%, it is by flow about 20%, and when aperture is 90%, it is also about 90% by flow, whole is 45 ° of bias types by flow and aperture, realize at the uniform velocity increasing progressively of flow by the increase of aperture, the pressure acting on piston is at the uniform velocity increased, realize the at the uniform velocity startup of hydraulic cylinder piston rod with this.
The beneficial effects of the utility model are: by taper type and the cushion collar A of ball end face and cushion collar B, realize oil hydraulic cylinder presents uniform motion linear characteristic when starting; Dregs of fat worn piston is prevented by scraping slag ring; By realizing the self-adapting seal of seal ring under elastic ring being placed in seal ring.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is the close-up schematic view at the utility model piston seal place.
Fig. 3 is the structural representation of the utility model cushion collar.
Fig. 4 is the linear starting characteristic schematic diagram of the utility model oil hydraulic cylinder.
Wherein: 1, end cap A, 2, cylinder barrel, 3, cushion collar A, 4, scrape slag ring, 5, seal ring, 6, elastic ring, 7, piston, 8, cushion collar B, 9, piston rod, 10, guide sleeve, 11, end cap B, 12, dust ring, 13, hydraulic fluid port B, 14, hydraulic fluid port A, 15, buffering block set.
Embodiment
Embodiment:
As shown in Figure 1, a kind of starting characteristic of the present utility model is linear oil hydraulic cylinder, mainly comprises end cap A1, end cap B11, cylinder barrel 2, guide sleeve 10, piston rod 9, piston 7, scrapes slag ring 4, seal ring 5, elastic ring 6, cushion collar A3 and cushion collar B8.End cap A1 is provided with outside thread, and end cap B11 is provided with internal thread and middle part has through hole, and cylinder barrel 2 one end has internal thread, one end has outside thread and homonymy has hydraulic fluid port A14 and hydraulic fluid port B13, and end cap A1 and end cap B11 is threaded connection and is arranged on cylinder barrel 2.Piston rod 9 one end has outside thread, the other end is stretched out by end cap B11 through hole by guide sleeve 10, dust ring 12.
Shown in composition graphs 2, piston 7 has the through hole containing internal thread, and piston 7 is threaded connection and is arranged on piston rod 9.Two ends, piston 7 side are provided with scrapes slag ring 4 and its cross section is circular arc, during work, the dregs of fat of this design scraped cylinder barrel 2 wall, prevent the dregs of fat from entering between piston 7 and cylinder barrel 2 wall, the fretting wear of piston 7 and cylinder barrel 2 is caused when piston 7 moves, and abradable seal circle 5 and cause leakage.
Piston 7 has circular groove in the middle part of side, elastic ring 6 and seal ring 5 are installed in circular groove, seal ring 5 is pressed on elastic ring 6, this design realizes the self-adapting seal of seal ring 5, namely when seal ring 5 weares and teares, by the resiliently deformable of elastic ring 6, by seal ring 5 jack-up, make up the wear extent of seal ring 5 with this, reach the effect of adjustment sealing automatically.
Shown in composition graphs 3, Fig. 4, cushion collar A3 has the blind hole containing internal thread, and cushion collar B8 has the through hole containing internal thread, and cushion collar A1 and cushion collar B8 is threaded connection symmetry and is arranged on piston rod 9 centered by piston 7.The taper type structure of to be end face be in the termination of cushion collar A3 and cushion collar B8 Surface of Sphere, its spherical radius is
r, the tilt angle of the conical surface is
aand the figure of merit
a=30 °, during work, this structural design realizes oil hydraulic cylinder and presents straight line type characteristic when starting, namely by ball end face and conical inclination
adesign, make cushion collar A3 or cushion collar B8 start up period, when namely leaving buffering block set 15 in cylinder barrel 2, flow through cushion collar A3 or cushion collar B8 presents the feature at the uniform velocity increased progressively, namely when aperture is 20%, it is by flow about 20%, and aperture is when being 90%, it is also about 90% by flow, whole is 45 ° of bias types by flow and aperture, realize at the uniform velocity increasing progressively of flow by the increase of aperture, the pressure acting on piston 7 is at the uniform velocity increased, realize the at the uniform velocity startup of hydraulic cylinder piston rod 9 with this.
Claims (1)
1. a starting characteristic is linear oil hydraulic cylinder, mainly comprise end cap A, end cap B, cylinder barrel, guide sleeve, piston rod, piston, scrape slag ring, seal ring, elastic ring, cushion collar A and cushion collar B, described end cap A is provided with outside thread, end cap B is provided with internal thread and middle part has through hole, cylinder barrel one end has internal thread, one end has outside thread and homonymy has hydraulic fluid port A and hydraulic fluid port B, and end cap A and end cap B is threaded connection and is arranged on cylinder barrel; It is characterized in that: described piston rod one end has outside thread, the other end is stretched out by end cap B through hole by guide sleeve, dust ring; Described piston has the through hole containing internal thread, piston is threaded connection installation on the piston rod, and two ends, piston side are provided with scrapes slag ring and its cross section is circular arc, and piston side Middle face has circular groove, be provided with elastic ring and seal ring in circular groove, seal ring is pressed on elastic ring; Described cushion collar A has the blind hole containing internal thread, cushion collar B has the through hole containing internal thread, cushion collar A and cushion collar B is threaded connection symmetrical installation on the piston rod centered by piston, and the taper type structure of to be end face be in the termination of cushion collar A and cushion collar B Surface of Sphere, its spherical radius is
r, the tilt angle of the conical surface is
aand the figure of merit
a=30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520659533.0U CN204985144U (en) | 2015-08-29 | 2015-08-29 | Starting characteristic is linear pneumatic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520659533.0U CN204985144U (en) | 2015-08-29 | 2015-08-29 | Starting characteristic is linear pneumatic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985144U true CN204985144U (en) | 2016-01-20 |
Family
ID=55119517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520659533.0U Expired - Fee Related CN204985144U (en) | 2015-08-29 | 2015-08-29 | Starting characteristic is linear pneumatic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985144U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041771A (en) * | 2015-08-29 | 2015-11-11 | 济南大学 | Hydraulic cylinder of which starting characteristic is straight |
| CN110067786A (en) * | 2019-03-28 | 2019-07-30 | 河海大学常州校区 | A kind of built-in buffer unit |
-
2015
- 2015-08-29 CN CN201520659533.0U patent/CN204985144U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041771A (en) * | 2015-08-29 | 2015-11-11 | 济南大学 | Hydraulic cylinder of which starting characteristic is straight |
| CN110067786A (en) * | 2019-03-28 | 2019-07-30 | 河海大学常州校区 | A kind of built-in buffer unit |
| CN110067786B (en) * | 2019-03-28 | 2020-09-22 | 河海大学常州校区 | Built-in buffer device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20180829 |