CN204985694U - High temperature resistant, cold -resistant just wear resistant pneumatic cylinder composite piston device - Google Patents
High temperature resistant, cold -resistant just wear resistant pneumatic cylinder composite piston device Download PDFInfo
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- CN204985694U CN204985694U CN201520731107.3U CN201520731107U CN204985694U CN 204985694 U CN204985694 U CN 204985694U CN 201520731107 U CN201520731107 U CN 201520731107U CN 204985694 U CN204985694 U CN 204985694U
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- piston
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- elastic sleeve
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Abstract
The utility model provides a high temperature resistant, cold -resistant just wear resistant pneumatic cylinder composite piston device includes mainly that piston rod, piston, elastic sleeve, ceramic cover, elastic ring, sealing washer, spring washers and lock nut constitute, and the piston comprises protruding dish in a left side and the butt joint of right protruding dish, and the elastic sleeve divide into left elastic sleeve and right elastic sleeve, and elastic ring and sealing washer are installed in proper order in pottery cover recess. Its characteristics are that the high temperature resistant, cold -resistant and wear -resisting of piston is realized to pottery cover and the sealed with silicone rubber circle on the piston. The utility model discloses a high temperature resistant, cold -resistant and wear -resisting of piston when reducing the whole weight of piston, is realized to composite piston and pottery cover, realize strengthening piston sealing in high temperature, low cold purgation through inverted trapezoid structure's sealed with silicone rubber circle, through elastic ring under the sealing washer and clearance oil storage district, the automatically regulated of realization sealing washer seals and reaches keeping in of oil leak.
Description
Technical field
The utility model relates to a kind of high temperature resistant, cold-resistant and wear-resisting hydraulic cylinder combined piston device, particularly relates to a kind of by combined piston and ceramic jacket, while reduction piston overall weight, realize piston high temperature resistant, cold-resistant and wear-resisting; Realize strengthening the sealing of piston in high temperature, low cold purgation by the silicone rubber O-ring of inverted trapezoidal structure; By the elastic ring under seal ring and reserve, gap, realize the automatic adjustment sealing of seal ring and the temporary of leakage of oil, belong to the technical research field of oil hydraulic cylinder.
Background technique
Oil hydraulic cylinder utilizes the straight reciprocating motion of piston to change hydraulic energy into mechanical energy.But due to the monotony of current piston structure and connection set, easily cause following problem: one is high temperature card cylinder, as at high temperature, by the restriction of piston material self character, easily piston thermal expansion occur and cause card cylinder phenomenon; Two is that low temperature seal lost efficacy, and as in low cold purgation, easily piston shrinkage occurs and causes seal failure; Three is that wear resistance is poor, causes ring wear to lose efficacy.
Therefore, the high temperature card cylinder in use existed for existing section hydraulic cylinder piston, low temperature seal lost efficacy and the problem such as to wear no resistance, should consider from the structure of hydraulic cylinder piston and connection set, design a kind of high temperature resistant, low cold and wear-resisting hydraulic cylinder piston device.
Summary of the invention
The high temperature card cylinder that the utility model in use exists for existing section hydraulic cylinder piston, low temperature seal lost efficacy and the problem such as to wear no resistance, and provided a kind of a kind of high temperature resistant, cold-resistant and wear-resisting hydraulic cylinder combined piston device that can effectively solve the problem.
A kind of high temperature resistant, cold-resistant and wear-resisting hydraulic cylinder combined piston device of the present utility model is by the following technical solutions:
A kind of high temperature resistant, cold-resistant and wear-resisting hydraulic cylinder combined piston device, mainly comprise piston rod, piston, elastic sleeve, ceramic jacket, elastic ring, seal ring, elastic washer and locking nut composition, piston is made up of the convex dish docking of the convex dish in a left side and the right side, elastic sleeve is divided into left elastic sleeve and right elastic sleeve, and elastic ring and seal ring are arranged in ceramic jacket groove successively; The head end of described piston rod is provided with the outside thread of two places' connection locking nuts, and piston rod head end is provided with locking nut, elastic washer, left convex dish, right convex dish, elastic washer and locking nut from inside to outside successively; The convex dish of the convex dish in a described left side and the right side adopts mild steel material, and its structure is the stepped cylindrical shape of hollow, and the convex dish of left convex dish and the right side is docked by small cylindrical surface, and interface place is provided with left elastic sleeve and right elastic sleeve; Described left elastic sleeve and right elastic sleeve adopt rubber material, and its structure is the stepped cylindrical shape of hollow; Described elastic washer adopts rubber material; Described ceramic jacket adopts stupalith, and it is tubular construction, and cylinder two ends are provided with the concave station blocking left convex dish and the right side convex dish great circle cylinder, and it is the circular groove of inverted trapezoidal that ceramic jacket outer side surface place is provided with 2 cross sections; Described elastic ring is rubber material and cross section is rectangle, and seal ring is silicone rubber material and cross section is inverted trapezoidal, and seal ring is arranged on the elastic ring of rubber material, and leaves reserve, gap between elastic ring and ceramic jacket groove.
The utility model is provided with two place's outside threads at piston rod head end, realizes piston two ends and fixes in the mode of locking nut, and facilitate the fastening adjustment of piston by locking nut by this design.
Plunger designs is by the structure of the convex dish in a left side for stepped cylindrical shape and the right side convex dish docking combination by the utility model, both can have been facilitated the installation of ceramic jacket, and can reduce again the weight of piston by this design.
The joint of the utility model convex dish of convex dish and the right side on a left side is provided with left elastic sleeve and right elastic sleeve, both can prevent the convex dish direct collision of left convex dish and the right side by this design and damage, the contact-impact of the convex dish of ceramic jacket and a left side, right convex dish can be eliminated again, namely by the friction between the interior molecules of left elastic sleeve and right elastic sleeve and resiliently deformable, by impact kinetic energy with heat energy and elasticity can form consumption.
The utility model installs the ceramic jacket of stupalith outward at piston, by this design realize piston high temperature resistant, cold-resistant and wear-resisting, namely stupalith is utilized to be affected by thermal expansion and contraction little feature, and in the comparatively violent environment of temperature variation the advantage of endure, realizing piston can work under high temperature, low cold environment; On-deformable feature when utilizing the Young's modulus of stupalith high, stressed, on the basis of improving piston movement speed, can realize the wear-resisting of piston, increase the service life; In addition, utilize the feature that stupalith density is lower, reduce the weight of piston.
The utility model is designed to by seal ring adopt silicone rubber material and cross section is inverted trapezoidal structure, both can realize high temperature resistant, cold-resistant piston seal by this design, again can enhanced leaktightness effect.Namely the excellent heat resistance utilizing silicone rubber to have and low temperature elasticity feature, if its Applicable temperature scope is-60 DEG C ~ 225 DEG C, realize the sealing of high temperature, low cold purgation; Utilize inverted trapezoidal and cylinder barrel compared with the design of large contact surface to strengthen the sealing of piston.
The utility model installs rubber material elastic ring under seal ring, realizes, to the automatic adjustment sealing of seal ring, namely being come dilatancy amount or the contour projector of supplementary seal ring by the resiliently deformable of elastic ring by this design.
The utility model leaves reserve, gap between elastic ring and ceramic jacket groove, realizes the temporary of seal ring leakage of oil.
The beneficial effects of the utility model are: by combined piston and ceramic jacket, while reduction piston overall weight, realize piston high temperature resistant, cold-resistant and wear-resisting; Realize strengthening the sealing of piston in high temperature, low cold purgation by the silicone rubber O-ring of inverted trapezoidal structure; By the elastic ring under seal ring and reserve, gap, realize the automatic adjustment sealing of seal ring and the temporary of leakage of oil.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is the close-up schematic view of the utility model piston and ceramic jacket joint.
Fig. 3 is the close-up schematic view of the utility model elastic ring and seal ring joint.
Wherein: 1, right convex dish, 2, right elastic sleeve, 3, ceramic jacket, 4, left elastic sleeve, 5, left convex dish, 6, elastic washer, 7, locking nut, 8, piston rod, 9, elastic ring, 10, seal ring, 11, cylinder barrel, 12, reserve, gap.
Embodiment
Embodiment:
As shown in Figure 1, a kind of high temperature resistant, cold-resistant and wear-resisting hydraulic cylinder combined piston device of the present utility model, mainly comprise piston rod 8, piston, elastic sleeve, ceramic jacket 3, elastic ring 9, seal ring 10, elastic washer 6 and locking nut 7 to form, piston is docked by the convex dish 1 of the convex dish in a left side 5 and the right side and forms, elastic sleeve is divided into left elastic sleeve 4 and right elastic sleeve 2, and elastic ring 9 and seal ring 10 are arranged in ceramic jacket 3 groove successively.
The head end of piston rod 8 is provided with the outside thread of two places' connection locking nuts 7, and piston rod 8 head end is provided with locking nut 7, elastic washer 6, left convex dish 5, right convex dish 1, elastic washer 6 and locking nut 7 from inside to outside successively, and elastic washer 6 adopts rubber material.This design can realize piston two ends and fix in the mode of locking nut 7, and facilitates the fastening adjustment of piston by locking nut 7.
Shown in composition graphs 2, the convex dish 1 of left convex dish 5 and the right side adopts mild steel material, and its structure is the stepped cylindrical shape of hollow, and the convex dish 1 of left convex dish 5 and the right side is docked by small cylindrical surface, and this design both can facilitate the installation of ceramic jacket 3, can reduce again the weight of piston.
On a left side, the interface place of the convex dish of convex dish 5 and the right side 1 is provided with left elastic sleeve 4 and right elastic sleeve 2, left elastic sleeve 4 and right elastic sleeve 2 adopt rubber material, its structure is the stepped cylindrical shape of hollow, during work, this design both can prevent left convex dish 5 and the right side convex dish 1 direct collision and damage, the contact-impact of ceramic jacket 3 and the convex dish in a left side 5, right convex dish 1 can be eliminated again, namely by the friction between the interior molecules of left elastic sleeve 4 and right elastic sleeve 2 and resiliently deformable, by impact kinetic energy with heat energy and elasticity can form consumption.
Ceramic jacket 3 adopts stupalith, it is tubular construction, and cylinder two ends are provided with the concave station blocking left convex dish 5 and the right side convex dish 1 great circle cylinder, it is the circular groove of inverted trapezoidal that ceramic jacket 3 outer side surface place is provided with 2 cross sections, during work, this design realize piston high temperature resistant, cold-resistant and wear-resisting, namely utilize stupalith to be affected by thermal expansion and contraction little feature, and in the comparatively violent environment of temperature variation the advantage of endure, realizing piston can work under high temperature, low cold environment; On-deformable feature when utilizing the Young's modulus of stupalith high, stressed, on the basis of improving piston movement speed, can realize the wear-resisting of piston, increase the service life; In addition, utilize the feature that stupalith density is lower, reduce the weight of piston.
Shown in composition graphs 3, seal ring 10 is for silicone rubber material and cross section is inverted trapezoidal, and this design both can realize high temperature resistant, cold-resistant piston seal, again can enhanced leaktightness effect.Namely the excellent heat resistance utilizing silicone rubber to have and low temperature elasticity feature, if its Applicable temperature scope is-60 DEG C ~ 225 DEG C, realize the sealing of high temperature, low cold purgation; Utilize inverted trapezoidal and cylinder barrel 11 compared with the design of large contact surface to strengthen the sealing of piston.
Seal ring 10 is arranged on the elastic ring 9 of rubber material, elastic ring 9 is for rubber material and cross section is rectangle, 10 times elastic ring 9 is installed at seal ring, this design can realize, to the automatic adjustment sealing of seal ring 10, namely being come dilatancy amount or the contour projector of supplementary seal ring 10 by the resiliently deformable of elastic ring 9.Between elastic ring 9 and ceramic jacket 3 groove, leave reserve, gap 12, the temporary of seal ring 10 leakage of oil can be realized.
Claims (1)
1. high temperature resistant, a cold-resistant and wear-resisting hydraulic cylinder combined piston device, mainly comprise piston rod, piston, elastic sleeve, ceramic jacket, elastic ring, seal ring, elastic washer and locking nut composition, piston is made up of the convex dish docking of the convex dish in a left side and the right side, elastic sleeve is divided into left elastic sleeve and right elastic sleeve, and elastic ring and seal ring are arranged in ceramic jacket groove successively; It is characterized in that: the head end of described piston rod is provided with the outside thread of two places' connection locking nuts, and piston rod head end is provided with locking nut, elastic washer, left convex dish, right convex dish, elastic washer and locking nut from inside to outside successively; The convex dish of the convex dish in a described left side and the right side adopts mild steel material, and its structure is the stepped cylindrical shape of hollow, and the convex dish of left convex dish and the right side is docked by small cylindrical surface, and interface place is provided with left elastic sleeve and right elastic sleeve; Described left elastic sleeve and right elastic sleeve adopt rubber material, and its structure is the stepped cylindrical shape of hollow; Described elastic washer adopts rubber material; Described ceramic jacket adopts stupalith, and it is tubular construction, and cylinder two ends are provided with the concave station blocking left convex dish and the right side convex dish great circle cylinder, and it is the circular groove of inverted trapezoidal that ceramic jacket outer side surface place is provided with 2 cross sections; Described elastic ring is rubber material and cross section is rectangle, and seal ring is silicone rubber material and cross section is inverted trapezoidal, and seal ring is arranged on the elastic ring of rubber material, and leaves reserve, gap between elastic ring and ceramic jacket groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520731107.3U CN204985694U (en) | 2015-09-21 | 2015-09-21 | High temperature resistant, cold -resistant just wear resistant pneumatic cylinder composite piston device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520731107.3U CN204985694U (en) | 2015-09-21 | 2015-09-21 | High temperature resistant, cold -resistant just wear resistant pneumatic cylinder composite piston device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985694U true CN204985694U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520731107.3U Withdrawn - After Issue CN204985694U (en) | 2015-09-21 | 2015-09-21 | High temperature resistant, cold -resistant just wear resistant pneumatic cylinder composite piston device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985694U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202182A (en) * | 2015-09-21 | 2015-12-30 | 济南大学 | Composite piston device with high temperature resistance, cold resistance and wear resistance for hydraulic cylinder |
| CN114192751A (en) * | 2020-09-18 | 2022-03-18 | 丰田自动车株式会社 | Plunger head and sliding method |
-
2015
- 2015-09-21 CN CN201520731107.3U patent/CN204985694U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202182A (en) * | 2015-09-21 | 2015-12-30 | 济南大学 | Composite piston device with high temperature resistance, cold resistance and wear resistance for hydraulic cylinder |
| CN105202182B (en) * | 2015-09-21 | 2017-04-19 | 济南大学 | Composite piston device with high temperature resistance, cold resistance and wear resistance for hydraulic cylinder |
| CN114192751A (en) * | 2020-09-18 | 2022-03-18 | 丰田自动车株式会社 | Plunger head and sliding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160120 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160120 Effective date of abandoning: 20171114 |