CN205207518U - Gas spring assembly - Google Patents
Gas spring assembly Download PDFInfo
- Publication number
- CN205207518U CN205207518U CN201520854020.5U CN201520854020U CN205207518U CN 205207518 U CN205207518 U CN 205207518U CN 201520854020 U CN201520854020 U CN 201520854020U CN 205207518 U CN205207518 U CN 205207518U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- dust removal
- removal piece
- pressure cylinder
- piston
- 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
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- Fluid-Damping Devices (AREA)
Abstract
The application discloses a gas spring assembly, including pressure cylinder, piston rod, piston and sealed uide bushing, piston packaging connects in the pressure cylinder, piston rod one end and hinge joint, the inside in pressure cylinder one end is connected to sealed uide bushing, the piston rod runs through sealed uide bushing, still includes the dust removal structure, and the structure of should removing dust includes that mount pad and at least two can dismantle the dust removal piece of connection on the mount pad, the mount pad is connected on the pressure cylinder stretches out the terminal surface of piston rod one end, a plurality of dusting hole that formation supplied the piston rod to pass that remove dust, this dusting hole and the laminating of piston rod surface. Use the scheme of this patent application can avoid the dust to get into between piston rod and the sealed uide bushing.
Description
Technical field
The utility model relates to one and comprises on-fluid type spring and vibration damper, is specifically related to a kind of gas spring device.
Background technique
Air spring (gasspring) is a kind of industry accessories that can play support, buffering, braking, the highly function such as adjustment and angle adjustment.It is made up of following a few part: pressure cylinder, piston rod, piston, seal guide sleeve, packing (inert gas or gas mixture), control unit and cylinder outer control unit (referring to controllable gas spring) and joint etc. in cylinder.Principle is filled with inert gas or gas mixture in airtight pressure cylinder, make the pressure in cavity higher than atmospheric several times or tens times, utilize the cross-section area of piston rod be less than piston cross-section area thus produce pressure difference to realize the motion of piston rod.Due to the fundamental difference in principle, air spring has very significant advantage than common spring: speed relatively slowly, dynamic force change little (generally within 1:1.2), easily to control.
Air spring in existing use, its piston rod one end is inserted in pressure cylinder, the other end is outside exposed, there is following shortcoming in such structure: exposed piston rod can not be protected, have in the production environment of more dust at some, exposed piston rod is very easy to long-pending full dust, and surface be stained with the piston rod of dust can frequent and seal guide sleeve friction, owing to there being the existence of dust, friction factor in friction process is large, piston rod and seal guide sleeve is easily caused to damage, so need often to check and keep in repair, during maintenance, carry out after also pressure cylinder will being dismantled, maintenance bothers very much, and decrease the working life of air spring.
Model utility content
The purpose of this utility model is to provide a kind of dust of avoiding to enter gas spring device between piston rod and seal guide sleeve.
For achieving the above object, base case of the present utility model is as follows:
Gas spring device, comprise pressure cylinder, piston rod, piston and seal guide sleeve, described piston seal is connected in pressure cylinder, described piston rod one end is connected with piston, described seal guide sleeve is connected to the inside of pressure cylinder one end, described piston rod runs through seal guide sleeve, also comprise dedusting structure, this dedusting structure comprises fitting seat and at least two dust removal piece be detachably connected on fitting seat, described fitting seat is connected to pressure cylinder and stretches out on the end face of piston rod one end, multiple dust removal piece forms the dedusting hole passed for piston rod, this dedusting hole and piston rod outer surface are fitted.
The principle of this programme: before use, multiple dust removal piece is arranged on fitting seat, because multiple dust removal piece forms the dedusting hole passed for piston rod, this dedusting hole and piston rod outer surface are fitted, so after piston rod stretches out from pressure cylinder, dust is attached to piston rod surface, when piston rod retraction pressure cylinder, piston rod is first through dedusting hole, now, dust removal piece can by piston rod surface adhere to dust scrape substantially completely, piston rod retraction pressure cylinder time, surface has not had dust to adhere to, thus avoids dust to enter between piston rod and seal guide sleeve.In addition, after dust removal piece is worn, only dust removal piece need be dismantled, the dust removal piece then more renewed, compared with dismantling pressure cylinder with background technique, obviously simpler, convenient.
Optimized project 1, to the further optimization of base case, described dust removal piece arranges two, and each dust removal piece is connected by screw on fitting seat, and dust removal piece is provided with semicircular opening slot.Two dust removal piece are set, and when being connected by screw, do not need dismounting piston rod just can install or dismantle dust removal piece.
Optimized project 2, to the further optimization of base case, the one side of described dedusting hole and plunger rod contacts is provided with polyurethane elastomer layer.Polyurethane elastomer is wear-resisting, and possesses good elasticity and pliability, in using process, polyurethane elastomer layer and piston rod surface are fitted, and the dust being attached to piston rod surface can be scraped, polyurethane elastomer wear-resisting property is good, so can use the longer time.
Optimized project 3, to the further optimization of base case or optimized project 2, described dust removal piece arranges two, and described fitting seat is provided with two draw-in grooves in L-type, two dust removal piece is equipped with the flange coordinating and insert draw-in groove.When installing dust removal piece, first by two dust removal piece splits, then the flange in two dust removal piece being aligned with two draw-in grooves respectively, after insertion, rotating dust removal piece, can dust removal piece be stuck in fitting seat, by the more convenient installation and removal of the mode of this clamping.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model gas spring device embodiment;
Fig. 2 is the enlarged view at A place in Fig. 1;
Fig. 3 is the structural representation of the utility model gas spring device embodiment;
Fig. 4 is the enlarged view at B place in Fig. 3.
Embodiment
Below by embodiment, the utility model is described in further detail:
Reference character in Figure of description comprises: pneumatic cylinder 10, piston 20, piston rod 30, seal guide sleeve 40, dedusting structure 50, fitting seat 51, dust removal piece 52, polyurethane elastomer layer 53, L-type draw-in groove 511, flange 521.
Embodiment 1
Embodiment is substantially as shown in figure 1 and 2: a kind of gas spring device, comprise pressure cylinder, piston rod, piston and seal guide sleeve, piston seal is connected in pressure cylinder, piston rod one end is connected with piston, seal guide sleeve is connected to the inside of pressure cylinder one end, piston rod runs through seal guide sleeve, the present embodiment also comprises dedusting structure, this dedusting structure comprises fitting seat and two dust removal piece be connected on fitting seat, fitting seat is connected by screw on the end face that pressure cylinder stretches out piston rod one end, two dust removal piece form the dedusting hole passed for piston rod, in the present embodiment, the polyurethane elastomer layer that dedusting hole one deck 3mm bonding with in the one side of plunger rod contacts is thick.Polyurethane elastomer is wear-resisting, and possesses good elasticity and pliability, in using process, polyurethane elastomer layer and piston rod surface are fitted, and the dust being attached to piston rod surface can be scraped, polyurethane elastomer wear-resisting property is good, so can use the longer time.
In the present embodiment, each dust removal piece is connected by screw on fitting seat, and dust removal piece is provided with semicircular opening slot.Two dust removal piece are set, and when being connected by screw, do not need dismounting piston rod just can install or dismantle dust removal piece.
Embodiment 2
As shown in Figures 3 and 4, be: dust removal piece arranges two with the difference part of embodiment 1, fitting seat is provided with two draw-in grooves in L-type, two dust removal piece is equipped with the flange coordinating and insert draw-in groove.When installing dust removal piece, first by two dust removal piece splits, then the flange in two dust removal piece being aligned with two draw-in grooves respectively, after insertion, rotating dust removal piece, can dust removal piece be stuck in fitting seat, by the more convenient installation and removal of the mode of this clamping.
Specific works principle:
Be specifically described for embodiment 1 below: as illustrated in fig. 1 and 2, before using, two dust removal piece are arranged on fitting seat, because two dust removal piece form the dedusting hole passed for piston rod, polyurethane elastomer layer bonding in this dedusting hole and piston rod outer surface are fitted, after piston rod stretches out from pressure cylinder, dust is attached to piston rod surface, when piston rod retraction pressure cylinder, piston rod is first through dedusting hole, now, the dust that piston rod surface adheres to can scrape by polyurethane elastomer layer in dust removal piece substantially completely, piston rod retraction pressure cylinder time, surface has not had dust to adhere to, thus avoid dust to enter between piston rod and seal guide sleeve.In addition, after dust removal piece is worn, only dust removal piece need be dismantled, the dust removal piece then more renewed, compared with dismantling pressure cylinder with background technique, obviously simpler, convenient.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification etc. record the content that may be used for explaining claim.
Claims (4)
1. gas spring device, comprise pressure cylinder, piston rod, piston and seal guide sleeve, described piston seal is connected in pressure cylinder, described piston rod one end is connected with piston, described seal guide sleeve is connected to the inside of pressure cylinder one end, described piston rod runs through seal guide sleeve, it is characterized in that, also comprise dedusting structure, this dedusting structure comprises fitting seat and at least two dust removal piece be detachably connected on fitting seat, described fitting seat is connected to pressure cylinder and stretches out on the end face of piston rod one end, multiple dust removal piece forms the dedusting hole passed for piston rod, this dedusting hole and piston rod outer surface are fitted.
2. gas spring device according to claim 1, is characterized in that, described dust removal piece arranges two, and each dust removal piece is connected by screw on fitting seat, and dust removal piece is provided with semicircular opening slot.
3. gas spring device according to claim 1, is characterized in that, the one side of described dust removal piece and plunger rod contacts is provided with polyurethane elastomer layer.
4. the gas spring device according to claim 1 or 3, is characterized in that, described dust removal piece arranges two, and described fitting seat is provided with two draw-in grooves in L-type, two dust removal piece is equipped with the flange coordinating and insert draw-in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520854020.5U CN205207518U (en) | 2015-10-31 | 2015-10-31 | Gas spring assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520854020.5U CN205207518U (en) | 2015-10-31 | 2015-10-31 | Gas spring assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205207518U true CN205207518U (en) | 2016-05-04 |
Family
ID=55845237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520854020.5U Expired - Fee Related CN205207518U (en) | 2015-10-31 | 2015-10-31 | Gas spring assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205207518U (en) |
-
2015
- 2015-10-31 CN CN201520854020.5U patent/CN205207518U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20160504 Termination date: 20201031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |