CN204512278U - A kind of sealed mode hydraulic damper - Google Patents
A kind of sealed mode hydraulic damper Download PDFInfo
- Publication number
- CN204512278U CN204512278U CN201520139618.6U CN201520139618U CN204512278U CN 204512278 U CN204512278 U CN 204512278U CN 201520139618 U CN201520139618 U CN 201520139618U CN 204512278 U CN204512278 U CN 204512278U
- Authority
- CN
- China
- Prior art keywords
- piston
- grease chamber
- oil cylinder
- orifice valve
- valve block
- 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
Links
Abstract
The utility model relates to a kind of sealed mode hydraulic damper, comprise oil cylinder, piston rod and piston, described piston is movably connected in oil cylinder, the inner space of described oil cylinder is divided into front grease chamber and rear grease chamber by piston, described oil cylinder is positioned at cylindrical shell, described oil cylinder and the rear and front end of cylindrical shell are fixedly connected with front end housing and back cylinder cover respectively, the front end of described cylindrical shell is movably connected in containment vessel, one end of described piston rod is connected with piston through front end housing, the other end of described piston rod is connected with spherical plain bearing rod end through containment vessel, the first orifice valve block and the second orifice valve block is respectively equipped with in described piston and back cylinder cover, the first described orifice valve block is connected with rear grease chamber with front grease chamber respectively, also compensation device is provided with in described cylindrical shell, described rear grease chamber is connected with compensation device by the second orifice valve block.The design provides damping force by two orifice valve blocks, improves its damping vibration attenuation effect.
Description
Technical field
The utility model relates to damping vibration attenuation field, particularly a kind of sealed mode hydraulic damper.
Background technique
Hydraulic damper is the damping machinery carrying out constant motion need deceleration under high-speed motion state after.Existing damper adopts air-damped form mostly, during the work of this type of air damper, there is the compression ratio of an air, and cause initial stage damping inadequate, damping constant is unstable; And due to the impact of installing space, damper there will be some and connects the problems such as long or too short; And the damping vibration attenuation effect of this kind of damper is also poor, the industrial needs of modernization cannot be met.
Summary of the invention
The utility model technical issues that need to address provide damping force by two orifice valve blocks, improves its damping vibration attenuation effect; A kind of sealed mode hydraulic damper is provided.
For solving above-mentioned technical problem, structure of the present utility model comprises oil cylinder, piston rod and piston, described piston is movably connected in oil cylinder, the inner space of described oil cylinder is divided into front grease chamber and rear grease chamber by piston, described oil cylinder is positioned at cylindrical shell, described oil cylinder and the rear and front end of cylindrical shell are fixedly connected with front end housing and back cylinder cover respectively, the front end of described cylindrical shell is movably connected in containment vessel, one end of described piston rod is connected with piston through front end housing, the other end of described piston rod is connected with spherical plain bearing rod end through containment vessel, the first orifice valve block and the second orifice valve block is respectively equipped with in described piston and back cylinder cover, the first described orifice valve block is connected with rear grease chamber with front grease chamber respectively, also compensation device is provided with in described cylindrical shell, described rear grease chamber is connected with compensation device by the second orifice valve block, described back cylinder cover is connected with engaging lug seat by extending device.
Further: described compensation device comprises compensated chamber and rubber pneumatic bag, described compensated chamber is arranged between oil cylinder and cylindrical shell, and described rubber pneumatic bag is positioned at compensated chamber, and described rear grease chamber is connected with compensated chamber by the second orifice valve block.
Further again: described rubber pneumatic bag has three.
Further again: described extending device comprises bolt, cannulated sleeve and nut, one end of described cannulated sleeve is fixedly connected on back cylinder cover, the other end of described cannulated sleeve offers tapped through hole, described engaging lug seat is bolted in the tapped through hole of cannulated sleeve, and the bolt outside described cannulated sleeve has also been rotatably connected nut.
After adopting said structure, the utility model can not only provide damping force by two orifice valve blocks, improves its damping vibration attenuation effect; And rubber pneumatic bag can be utilized to compensate, the restoring force provided by rubber pneumatic bag plays the effect of accelerating to reply; And the design can regulate the connecting length of hydraulic damper according to the size of installing space, add its practicability.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of extending device.
Embodiment
A kind of sealed mode hydraulic damper as shown in Figure 1, comprise oil cylinder 1, piston rod 2 and piston 3, described piston 3 is movably connected in oil cylinder 1, the inner space of described oil cylinder 1 is divided into front grease chamber 4 and rear grease chamber 5 by piston 3, described oil cylinder 1 is positioned at cylindrical shell 6, described oil cylinder 1 and the rear and front end of cylindrical shell 6 are fixedly connected with front end housing 7 and back cylinder cover 8 respectively, the front end of described cylindrical shell 6 is movably connected in containment vessel 9, one end of described piston rod 2 is connected with piston 3 through front end housing 7, the other end of described piston rod 2 is connected with spherical plain bearing rod end 10 through containment vessel 9, the first orifice valve block 11 and the second orifice valve block 12 is respectively equipped with in described piston 3 and back cylinder cover 8, the first described orifice valve block 11 is connected with rear grease chamber 5 with front grease chamber 4 respectively, also compensation device is provided with in described cylindrical shell 6, described rear grease chamber 5 is connected with compensation device by the second orifice valve block 12, described back cylinder cover 8 is connected with engaging lug seat 13 by extending device.Before work, the first space size according to installation environment regulates the connecting length of hydraulic damper by extending device, then engaging lug seat 13 is installed on fixed support, spherical plain bearing rod end 10 is connected with needing the object of vibration damping, when object is subject to vibrating inside extruding hydraulic damper, piston rod 2 can push piston 3 and move to back cylinder cover 8 under the effect of spherical plain bearing rod end 10, damp liquid after piston 3 can extrude in the process of motion in grease chamber 5, along with the volume of rear grease chamber 5 reduces, damp liquid after a part in grease chamber 5 can flow in front grease chamber 4 by the first orifice valve block 11, damp liquid after a part in grease chamber 5 can flow in compensation device by the second orifice valve block 12, damp liquid can produce damping force when flowing through the first orifice valve block 11 and the second orifice valve block 12, the design plays the effect of lowering speed of moving body and consuming impact energy by two damping forces produced.When object be subject to impact pull out hydraulic damper time, piston rod 2 can haul piston 3 and move to front end housing 7 under the effect of spherical plain bearing rod end 10, piston 3 can extrude the damp liquid in front grease chamber 4 in the process of motion, along with the volume of front grease chamber 4 reduces, damp liquid in front grease chamber 4 can flow in rear grease chamber 5 by the first orifice valve block 11, damp liquid in rear grease chamber 5 also can flow in compensation device by the second orifice valve block 12 under the effect of impact energy, damp liquid can produce damping force when flowing through the first orifice valve block 11 and the second orifice valve block 12, the design plays the effect of lowering speed of moving body and consuming impact energy by two damping forces produced.The utility model can not only provide damping force by two orifice valve blocks, improves its damping vibration attenuation effect; And compensation device can be utilized to compensate, the restoring force provided by compensation device plays the effect of accelerating to reply; And the design can regulate the connecting length of hydraulic damper according to the size of installing space, add its practicability.
Compensation device as shown in Figure 1 comprises compensated chamber 14 and rubber pneumatic bag 15, described compensated chamber 14 is arranged between oil cylinder 1 and cylindrical shell 6, described rubber pneumatic bag 15 is positioned at compensated chamber 14, described rear grease chamber 5 is connected with compensated chamber 14 by the second orifice valve block 12, and described rubber pneumatic bag 15 has three.When object is subject to impacting inside extruding hydraulic damper, piston rod 2 can push piston 3 and move to back cylinder cover 8, piston 3 is utilized to extrude damp liquid in rear grease chamber 5, part damp liquid in rear grease chamber 5 can flow into extruding rubber pneumatic bag 15 in compensated chamber 14 by the second orifice valve block 12, utilizes rubber pneumatic bag 15 to compensate; The rubber pneumatic bag 15 be squeezed after impact energy is exhausted can provide a reaction force, pushes damp liquid dynamic to backflow.When object be subject to impact pull out hydraulic damper time, piston rod 2 can push piston 3 and move to front end housing 7, piston 3 can extrude the damp liquid in front grease chamber 4 in the process of motion, damp liquid in front grease chamber 4 can flow in rear grease chamber 5 by the first orifice valve block 11, damp liquid in rear grease chamber 5 also can flow in compensated chamber 14 by the second orifice valve block 12 under the effect of impact energy, extruding rubber pneumatic bag 15, rubber pneumatic bag 15 is utilized to compensate, the rubber pneumatic bag 15 be squeezed after impact energy is exhausted can provide a reaction force, push damp liquid dynamic to backflow.The design utilizes rubber pneumatic bag to compensate, and the restoring force provided by rubber pneumatic bag plays the effect of accelerating to reply.
Extending device as shown in Figure 2 comprises bolt 16, cannulated sleeve 17 and nut 18, one end of described cannulated sleeve 17 is fixedly connected on back cylinder cover 8, the other end of described cannulated sleeve 17 offers tapped through hole, described engaging lug seat 13 is connected to by bolt 16 in the tapped through hole of cannulated sleeve 17, and the bolt 16 outside described cannulated sleeve 17 has also been rotatably connected nut 18.When needing the connecting length according to as installed space size adjustment hydraulic damper, rotating nut 18 makes it be separated with cannulated sleeve 17, then rotating bolt 16 changes it and stretches into length in cannulated sleeve 17, after the length adjustment that bolt 16 stretches in cannulated sleeve 17, counterrotating nut 18 makes it be connected with cannulated sleeve 17, thus completes fixing hydraulic damper connecting length.The design can regulate the connecting length of hydraulic damper according to the size of installing space, add its practicability; And it also has the advantage that structure is simple, be easy to manufacture and practicality and high efficiency.
Claims (4)
1. a sealed mode hydraulic damper, comprise oil cylinder (1), piston rod (2) and piston (3), described piston (3) is movably connected in oil cylinder (1), the inner space of described oil cylinder (1) is divided into front grease chamber (4) and rear grease chamber (5) by piston (3), it is characterized in that: described oil cylinder (1) is positioned at cylindrical shell (6), described oil cylinder (1) and the rear and front end of cylindrical shell (6) are fixedly connected with front end housing (7) and back cylinder cover (8) respectively, the front end of described cylindrical shell (6) is movably connected in containment vessel (9), one end of described piston rod (2) is connected with piston (3) through front end housing (7), the other end of described piston rod (2) is connected with spherical plain bearing rod end (10) through containment vessel (9), the first orifice valve block (11) and the second orifice valve block (12) is respectively equipped with in described piston (3) and back cylinder cover (8), the first described orifice valve block (11) is connected with rear grease chamber (5) with front grease chamber (4) respectively, also compensation device is provided with in described cylindrical shell (6), described rear grease chamber (5) is connected with compensation device by the second orifice valve block (12), described back cylinder cover (8) is connected with engaging lug seat (13) by extending device.
2. a kind of sealed mode hydraulic damper according to claim 1, it is characterized in that: described compensation device comprises compensated chamber (14) and rubber pneumatic bag (15), described compensated chamber (14) is arranged between oil cylinder (1) and cylindrical shell (6), described rubber pneumatic bag (15) is positioned at compensated chamber (14), and described rear grease chamber (5) is connected with compensated chamber (14) by the second orifice valve block (12).
3. a kind of sealed mode hydraulic damper according to claim 2, is characterized in that: described rubber pneumatic bag (15) has three.
4. a kind of sealed mode hydraulic damper according to claim 1, it is characterized in that: described extending device comprises bolt (16), cannulated sleeve (17) and nut (18), one end of described cannulated sleeve (17) is fixedly connected on back cylinder cover (8), the other end of described cannulated sleeve (17) offers tapped through hole, described engaging lug seat (13) is connected in the tapped through hole of cannulated sleeve (17) by bolt (16), the bolt (16) in described cannulated sleeve (17) outside has also been rotatably connected nut (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520139618.6U CN204512278U (en) | 2015-03-11 | 2015-03-11 | A kind of sealed mode hydraulic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520139618.6U CN204512278U (en) | 2015-03-11 | 2015-03-11 | A kind of sealed mode hydraulic damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204512278U true CN204512278U (en) | 2015-07-29 |
Family
ID=53710259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520139618.6U Expired - Fee Related CN204512278U (en) | 2015-03-11 | 2015-03-11 | A kind of sealed mode hydraulic damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204512278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105963059A (en) * | 2016-07-01 | 2016-09-28 | 王鼎兴 | Damping type fixing device for wrist joints |
-
2015
- 2015-03-11 CN CN201520139618.6U patent/CN204512278U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105963059A (en) * | 2016-07-01 | 2016-09-28 | 王鼎兴 | Damping type fixing device for wrist joints |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203189596U (en) | Controllable reset damping oil cylinder | |
| CN106801716B (en) | A kind of Mechanical molecular spring vibration isolation buffer unit | |
| CN103836107B (en) | Electrorheological buffer | |
| CN104632990A (en) | Solid particle damper device | |
| CN104564908A (en) | Buffer hydraulic cylinder | |
| CN2806880Y (en) | Double-rod clearance type damping liquid and spring composite vibration damper | |
| CN203670578U (en) | Constant force viscous damper | |
| CN106884922B (en) | A kind of hydraulic damper compensated automatically with oil pocket | |
| CN204512278U (en) | A kind of sealed mode hydraulic damper | |
| CN205278209U (en) | Damping adjustable damping ware | |
| CN204327840U (en) | A kind of Multi-stage pressure limiting regulating hydraulic buffer | |
| CN204512282U (en) | A kind of two rod hydraulic damper | |
| CN203442039U (en) | Novel spring shock absorber | |
| CN104948632A (en) | Shock absorber | |
| CN204419758U (en) | A kind of buffering hydraulic cylinder | |
| CN202673868U (en) | Bidirectional buffer piston structure of hydraulic cylinder and bidirectional buffer hydraulic cylinder | |
| CN101749354B (en) | Automobile generating shock absorber | |
| CN204512276U (en) | A kind of unidirectional tension hydraulic damper | |
| CN108150582B (en) | Oil return valve system of guide cover of anti-meandering oil pressure shock absorber for high-speed motor train | |
| CN204512277U (en) | A kind of unidirectional pressurised hydraulic damper | |
| CN201391511Y (en) | Hydraulic cylinder cushioning device | |
| CN104455172B (en) | Multistage pressure-limiting adjusting hydraulic buffer | |
| CN204664153U (en) | A kind of bearing support with damping device | |
| CN203948552U (en) | City railway vehicle current collection device damping cylinder | |
| CN106151167A (en) | Hydraulic Double bumper post plug cylinder |
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: 20150729 Termination date: 20190311 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |