CN202118025U - Rotation actuation device with buffering structure - Google Patents
Rotation actuation device with buffering structure Download PDFInfo
- Publication number
- CN202118025U CN202118025U CN2011202154222U CN201120215422U CN202118025U CN 202118025 U CN202118025 U CN 202118025U CN 2011202154222 U CN2011202154222 U CN 2011202154222U CN 201120215422 U CN201120215422 U CN 201120215422U CN 202118025 U CN202118025 U CN 202118025U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- gas circuit
- casing wall
- piston
- protecgulum
- 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 - Lifetime
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model discloses a rotation actuation device with a buffering structure, which comprises cylinders, a front piston and a rear piston, wherein the front piston and the rear piston are disposed inside a piston cavity of the cylinder. Racks are arranged in the middle of the front piston and the rear piston and mesh with a gear provided with a power output shaft. The number of the cylinders is two, and the cylinders are symmetrically positioned on both sides of the gear. A front cover and a rear cover are placed respectively at both ends of the cylinder, an air connection port is disposed on the front cover, and a front piston cavity of the cylinder is communicated with the air connection port through a front air channel disposed inside the front cover. A rear air channel is also connected to the air connection port, a flow control mechanism is arranged at the connecting position of the air connection port and the rear air channel, and a cylinder wall air vent which is communicated with the front piston cavity is disposed on the rear air channel close to the flow control mechanism. The rotation actuation device with the buffering structure effectively resolves the problems of poor equipment stability, severe noise pollution, fast equipment abrasion and short service life of a pneumatic rotation actuation device in the prior art due to strong force of impact, and has good social benefits and economic benefits.
Description
Technical field
The utility model relates to a kind of rotary type actuator that is used to drive various machineries, relates in particular to a kind of revolution actuator with buffer structure.
Background technique
By the power-actuated rotary type actuator of air pressure, be in cylinder, to reciprocatingly slide, thereby driven gear rotate outputting power through the piston of being with tooth bar.In this rotary type actuator of existing technology, for absorb above-mentioned piston when stroke terminal stops since impact force that inertia energy produced adopt usually outside mechanical type damping mechanism is set.But so mechanical damping mechanism exists that the wearing and tearing of sending impulsive sound when stopping, in the part of impacting, being produced by abrasion develop easily, the part of buffer etc. is projected into the outside and form the problem of obstacle.Open day is September 5 calendar year 2001; Publication number is that the patent document of CN1311399A discloses a kind of rotation actuator with damping mechanism, and it has the tooth bar that is back and forth driven by air pressure: the stroke end damping mechanism that is used to stop at just contrary at least one side with making above-mentioned tooth bar buffering; Above-mentioned damping mechanism comprises relief opening, flow regulating mechanism, cushion seal circle; This relief opening than above-mentioned oral pore more near distolateral position, chamber to pressure chamber's opening; Above-mentioned flow regulating mechanism restriction is from the flow of the exhaust of this relief opening discharge; Above-mentioned cushion seal circle is installed on the outer circumferential face of upper piston, when this piston soon arrives the stroke end, above-mentioned oral pore and pressure chamber cut off and with the air in this pressure chamber from relief opening discharge through the flow regulating mechanism.This structure adopts the gas buffer structure, promptly closes the exhaust port that is arranged on the casing wall at piston during near stroke terminal, slows down the velocity of discharge of air in the cylinder; Thereby play the effect of buffering, but this structure has adopted traditional seal ring, special-shaped seal ring; Part combinations such as buffering screw realize buffering, too complex on the structure, manufacturing difficulty; Cost of production is very high, assemble loaded down with trivial details, and accident susceptibility during adjustment buffering screw.On the other hand, because extraction flow alters a great deal at short notice, single buffering pore is owing to the length that makes progress at cylinder axis is very short when closing exhaust port for the cylinder of this structure; Therefore when piston moves in a short period of time just with its sealing; Therefore the pressure in the piston cavity sharply increases at short notice, causes the unexpected variation of piston traveling speed, and this structure changes excessive by the pressure of piston cavity at short notice and Cylinder Vibration that cause is very big; Therefore; The buffering of this structure is steady inadequately, because the stabilization of equipment performance that impact force causes by force is poor, noise pollution is serious, the problem that equipment attrition reaches the weak point in working life soon is not well solved.
The model utility content
The purpose of the utility model is the buffer structure complicacy for the pneumatic rotary actuator that solves existing technology; The manufacturing difficulty; Cost of production is very high; Assemble loaded down with trivial details, and problem such as accident susceptibility and a kind of revolution actuator of simple in structure, manufacturing is easy, cost of production is low band buffer structure is provided during adjustment buffering screw.
Another purpose of the utility model is because the stabilization of equipment performance that impact force causes by force is poor, noise pollution is serious for the pneumatic rotary actuator that solves existing technology; Equipment attrition is fast and problem that working life is short and a kind of stable working is provided, and noise is low, the revolution actuator of the band buffer structure of long service life.
The utility model is to solve the problems of the technologies described above the technological scheme that is adopted to be: a kind of revolution actuator with buffer structure; Comprise cylinder and be arranged on the sliding device in the cylinder piston chamber, the two ends of sliding device are provided with secondary piston and back piston respectively, and secondary piston and back piston fuse through the tooth bar of the middle part setting of sliding device; Tooth bar and the gear engagement that is provided with pto; Described cylinder is two, is symmetrically set in the both sides of said gear, and the two ends of cylinder are respectively equipped with protecgulum and bonnet; Protecgulum is provided with and connects gas port; The secondary piston chamber of cylinder with connect gas port and be communicated with through the preceding gas circuit that is provided with in the protecgulum, connect and also be connected with gas circuit afterwards on the gas port, back gas circuit is connected and composed by the bonnet gas circuit that is arranged on the casing wall gas circuit on the cylinder casing wall and be arranged on the bonnet; The gas port that connects of a cylinder is communicated with the back piston chamber of another cylinder through casing wall gas circuit, bonnet gas circuit; The joint that connects gas port and casing wall gas circuit is provided with flow control mechanism, is provided with the casing wall pore that is communicated with the secondary piston chamber near the casing wall gas circuit of flow control mechanism, seal ring and increasing back sealing ring before the two ends of secondary piston are respectively equipped with.At the gear bilateral symmetry setting that is provided with pto two cylinders up and down, when upper cylinder connect the gas port air inlet time, one road gas gets into the secondary piston chamber of upper cylinder through preceding gas circuit, promotes the interior piston of upper cylinder to the bonnet side shifting; Another road gas gets into the back gas circuit simultaneously, through the back piston chamber of flow control mechanism, casing wall gas circuit and bonnet gas circuit entering lower cylinder, promotes the piston forward lid side shifting in the lower cylinder.And the piston in the upper cylinder is when the bonnet side shifting; Upper cylinder back piston intracavity gas is compressed the back gas circuit that gets into lower cylinder, and this part gas is through the bonnet gas circuit and the casing wall gas circuit of lower cylinder, near the front end of lower cylinder the time; Because the casing wall gas circuit is provided with the casing wall pore that is communicated with cylinder secondary piston chamber; This part gas is divided into two-way, leads up to flow control mechanism on the casing wall gas circuit, is discharged by the gas port that connects of lower cylinder; Another road gets into the secondary piston chamber of lower cylinder through casing wall pore on the casing wall gas circuit, and discharges through gas circuit before the lower cylinder.When the secondary piston of lower cylinder moves near protecgulum; Preceding seal ring on the secondary piston is crossed the casing wall pore on the cylinder wall and is made the sealing of casing wall pore; Upper cylinder back piston intracavity gas can not be discharged and can only discharge through the throttle orifice on the flow control mechanism through the casing wall pore; Because the throttle orifice air displacement on the flow control mechanism is very little, so upper cylinder back piston intracavity gas discharge capacity significantly reduces, and the pressure upper cylinder back piston chamber in is owing to the air displacement minimizing raises; Thereby the back piston in the upper cylinder moved play inhibition, promptly piston is played buffer function during near terminal point.Piston movement direction in such two cylinders is opposite, rotates through the rack drives gear, and the gas port that connects of two cylinders takes turns air intake-exhaust, forward and reverse rotation that gear does not then stop, thereby outputting power up and down.Compare with the buffer structure of existing technology, the utility model simple in structure, manufacturing is easy, cost of production is low, has tangible economic benefit.
As preferably; Flow control mechanism comprises the buffering diaphragm that is arranged on the through flow hole on the protecgulum and is arranged on casing wall gas circuit end; Be provided with diaphragm chamber near putting of through flow hole on the casing wall gas circuit, the buffering diaphragm is arranged in the diaphragm chamber, is provided with throttle orifice in the middle of the buffering diaphragm; The buffering diaphragm is provided with air inlet duct away from the one side of protecgulum, and the diameter of said throttle orifice is less than the diameter of through flow hole.In the end of casing wall gas circuit the buffering diaphragm is set; During air inlet; Press behind the buffering diaphragm and leave through flow hole; Air-flow can pass through through flow hole and around the buffering diaphragm, reach the air inlet duct entering casing wall gas circuit that the buffering diaphragm is provided with at this moment, and the throttle orifice on the buffering diaphragm also can pass through the part air-flow, so air inflow is bigger.During exhaust, buffering compresses the subsides through flow hole before the diaphragm, and this moment, air-flow can only pass through from the throttle orifice on the buffering diaphragm, so gas output receives very big restriction, can for piston move on to breast the tape near the time enough bufferings are provided.The buffering diaphragm is done reciprocal " type piston " motion in diaphragm chamber under compressed-air actuated effect, thereby realize the unidirectional buffering of gas.This flow control mechanism has that air inlet is big, and the one-way characteristics that exhaust is little are suitable for requirement intake velocity cylinder faster, and these cylinders are applied to the application that requires the work starting speed fast usually.
Flow control mechanism also can adopt simple structure, and promptly flow control mechanism is the throttle orifice that is arranged on the protecgulum.Throttle orifice is an aperture; Throttle orifice on the buffering diaphragm of its aperture and aforementioned schemes is close; This scheme all exists throttling action, i.e. air inlet to begin can realize buffering with the exhaust end when air inlet and exhaust, and its advantage is easy to process; Cost is low, is suitable for the occasion of starting and stopping all need to cushion.
Casing wall pore on the cylinder casing wall also can adopt porous structure; Promptly adopt the metering hole structure; The casing wall pore is 3 to 5 metering holes, and metering hole is arranged in a linear on axially at the casing wall of cylinder, and secondary piston is gone forward seal distance between the increasing back sealing ring greater than the casing wall gas circuit length at metering hole place.The seal distance that secondary piston is gone forward between the increasing back sealing ring is that the secondary piston of cylinder when guaranteeing end of travel can all metering holes of complete closed greater than the casing wall gas circuit length at metering hole place.Compare with single structure casing wall pore; The structure of this programme is that original disposable casing wall pore of closing is divided into repeatedly and closes when piston is moved, and has certain time interval between closing for twice, thereby makes stepped the increasing progressively of pressure in the secondary piston chamber; Therefore; Variation in pressure in the piston cavity has a level and smooth relatively process, thereby realizes smoothing buffer, reduces owing to the pressure in the secondary piston chamber sharply increases the impact that causes with this; Reduce the vibration and the noise of cylinder, prolong the working life of equipment.And the single buffering pore of existing technology is very short owing to the length that makes progress at cylinder axis; Therefore when piston moves in a short period of time just with its sealing; Therefore the pressure of piston cavity increases at short notice fast, changes excessive at short notice and Cylinder Vibration that cause is relatively very big by the pressure of piston cavity, and the work of cylinder is steady inadequately; Noise is big, has also influenced the working life of cylinder simultaneously to a certain extent.
As the preferred version of above-mentioned porous scheme, greater than the metering hole diameter near protecgulum, the cross-section area of said metering hole is linear increment away from the metering hole diameter of protecgulum.Though metering hole also can adopt the equal aperture structure; But compare with the scheme of a plurality of equal aperture metering holes; The metering hole cross-section area of this programme covers direction backward from protecgulum and is linear increment; For example when 5 metering holes were set, the cross-section area ratio of metering hole can be 1 to 2 to 3 to 4 to 5 relation.When adopting this structure; Variation in pressure in the corresponding secondary piston chamber is first big after small stepped trend; Variation in pressure when this structure can make piston near terminal point in the secondary piston chamber is mild relatively; Help eliminating better the impact shock of cylinder, reduce noise, prolong the working life of equipment.
As preferably, the cylinder protecgulum and the bonnet of gear both sides all are integrated, and connect gas port, preceding gas circuit and the casing wall gas circuit corresponding with the both sides cylinder are symplex structure.The settings that two cylinders adopt shared integrated type protecgulum and integrated type bonnet to help gas circuit can simplified structure, and symplex structure can cut down finished cost.
The beneficial effect of the utility model is: it has solved the pneumatic rotary actuator complex structure of existing technology effectively; The manufacturing difficulty; The problem that cost of production is very high; Also solved the pneumatic rotary actuator of existing technology because the stabilization of equipment performance that impact force causes by force is poor, noise pollution is serious, equipment attrition reaches short problem in working life, the revolution actuator stable working of the utility model soon; Noise is little, long service life and simple in structure, cost of production is low, has very high social benefit and economic benefit.
Description of drawings
Fig. 1 is a kind of structural representation of the revolution actuator embodiment 1 of the utility model band buffer structure;
Fig. 2 is the partial enlarged drawing at A place among Fig. 1;
Fig. 3 is the partial enlarged drawing at B place among Fig. 2;
Fig. 4 is a kind of structural representation of the revolution actuator embodiment 2 of the utility model band buffer structure;
Fig. 5 is a kind of structural representation of the revolution actuator embodiment 3 of the utility model band buffer structure;
Fig. 6 is the partial enlarged drawing at C place among Fig. 5;
Fig. 7 is the partial enlarged drawing at D place among Fig. 6.
Among the figure: 1. secondary piston, 2. back piston, 3. tooth bar, 4. gear, 5. protecgulum, 6. bonnet; 7. connect gas port, 8. secondary piston chamber, 9. before gas circuit, 10. casing wall gas circuit, 11. bonnet gas circuits, 12. back piston chambeies; 13. flow control mechanism, 14. casing wall pores, 15. preceding seal rings, 16. increasing back sealing rings, 17. through flow holes; 18. the buffering diaphragm, 19. diaphragm chamber, 20. throttle orifices, 21. air inlet ducts, 22. metering holes.
Embodiment
Pass through embodiment below, and combine accompanying drawing that the embodiment of the utility model technological scheme is further described.
In embodiment shown in Figure 11, a kind of revolution actuator with buffer structure comprises cylinder and is arranged on the sliding device in the cylinder piston chamber; The two ends of sliding device are provided with secondary piston 1 and back piston 2 respectively; Secondary piston and back piston fuse through the tooth bar 3 of the middle part setting of sliding device, tooth bar and the gear that is provided with pto 4 engagements, and described cylinder is two; Be symmetrically set in the both sides of said gear; The plane at two cylinder-bore axis places and the axis normal of gear, the two ends of cylinder are respectively equipped with protecgulum 5 and bonnet 6, and the cylinder protecgulum and the bonnet of gear both sides all are integrated; Promptly the protecgulum of two cylinders is structure as a whole, and the bonnet of two cylinders also is structure as a whole.Protecgulum is provided with and connects gas port 7, the secondary piston chamber 8 of cylinder with connect gas port and be communicated with through the preceding gas circuit 9 that is provided with in the protecgulum, it is that straight gas circuit connects and composes that preceding gas circuit is parallel to cylinder-bore axis by one section perpendicular to the horizontal gas circuit of cylinder-bore axis and one section.Connect and also be connected with the back gas circuit on the gas port; Back gas circuit by be arranged on the cylinder casing wall, the casing wall gas circuit 10 parallel with cylinder-bore axis and the bonnet gas circuit 11 that is arranged on the bonnet connect and compose; The gas port that connects of a cylinder is communicated with the back piston chamber 12 of another cylinder through casing wall gas circuit, bonnet gas circuit, and connect gas port, preceding gas circuit and casing wall gas circuit that the both sides cylinder is corresponding are symplex structure.The joint that connects gas port and casing wall gas circuit is provided with flow control mechanism 13; Flow control mechanism comprises the through flow hole 17 that is arranged on the protecgulum and is arranged on the buffering diaphragm 18 (seeing Fig. 2, Fig. 3) of casing wall gas circuit end; Position near through flow hole on the casing wall gas circuit is provided with diaphragm chamber 19, and the buffering diaphragm is arranged in the diaphragm chamber, is provided with throttle orifice 20 in the middle of the buffering diaphragm; The buffering diaphragm is provided with air inlet duct 21 away from the one side of protecgulum, and the diameter of throttle orifice is less than the diameter of through flow hole.Casing wall gas circuit near flow control mechanism is provided with the casing wall pore 14 that is communicated with the secondary piston chamber, and the casing wall pore is one, seal ring 15 and increasing back sealing ring 16 before the two ends of secondary piston are respectively equipped with, and the end of back piston also is provided with a seal ring.This embodiment realizes the buffering of discharge end LAP.
In embodiment shown in Figure 42, flow control mechanism is throttle orifice 20 (see figure 7)s that are arranged on the protecgulum, and all the other are identical with embodiment 1.What this embodiment realized is that air inlet begins the buffering of LAP and the buffering of discharge end LAP.
In embodiment shown in Figure 53; The casing wall pore is 3 metering holes 22; Be arranged in a linear on axially at the casing wall of cylinder, greater than the metering hole diameter near protecgulum, the cross-section area of said metering hole covers direction backward from protecgulum and is linear increment away from the metering hole diameter of protecgulum; It is 1 to 2 to 3 (see figure 6); Secondary piston is gone forward distance between the increasing back sealing ring greater than the casing wall gas circuit length at metering hole place, promptly before and after seal distance between the seal ring greater than the distance between the maximum hole wall of the metering hole of both sides before and after being in, all the other are identical with embodiment 2.What this embodiment realized is that air inlet begins the buffering of LAP and the mild buffering of discharge end LAP.
When the casing wall pore adopted the scheme of a plurality of metering holes, metering hole also can adopt the equal aperture structure, promptly constituted new embodiment.
Revolution actuator when work of band buffer structure, when upper cylinder connect the gas port air inlet time, one road gas gets into the secondary piston chamber of upper cylinder through preceding gas circuit, promotes the interior piston of upper cylinder to the bonnet side shifting; Another road gas gets into the back gas circuit, through the back piston chamber of flow control mechanism, casing wall gas circuit and bonnet gas circuit entering lower cylinder, promotes the piston forward lid side shifting in the lower cylinder.And the piston in the upper cylinder is when the bonnet side shifting; Upper cylinder back piston intracavity gas is compressed the back gas circuit that gets into lower cylinder, and this part gas is through the bonnet gas circuit and the casing wall gas circuit of lower cylinder, near the front end of lower cylinder the time; Because the casing wall gas circuit is provided with the casing wall pore that is communicated with cylinder secondary piston chamber; This part gas is divided into two-way, leads up to flow control mechanism on the casing wall gas circuit, is discharged by the gas port that connects of lower cylinder; Another road gets into the secondary piston chamber of lower cylinder through casing wall pore on the casing wall gas circuit, and discharges through gas circuit before the lower cylinder.Piston movement direction in such two cylinders is opposite, rotates through the rack drives gear, and the gas port that connects of two cylinders takes turns air intake-exhaust, forward and reverse rotation that gear does not then stop, thereby outputting power up and down.
When the secondary piston of lower cylinder moves near protecgulum; Preceding seal ring on the secondary piston is crossed the casing wall pore on the cylinder wall and is made the sealing of casing wall pore; Upper cylinder back piston intracavity gas can not be discharged and can only discharge through flow control mechanism through the casing wall pore; Because the air displacement of flow control mechanism is less, so upper cylinder back piston intracavity gas discharge capacity significantly reduces, and the pressure upper cylinder back piston chamber in is owing to the air displacement minimizing raises; Thereby the back piston in the upper cylinder moved play inhibition, promptly piston is played buffer function during near terminal point.When the casing wall pore was a plurality of metering hole, because metering hole is arranged in a linear on axially at the casing wall of cylinder, and secondary piston was gone forward seal distance between the increasing back sealing ring greater than the casing wall gas circuit length at metering hole place.Compare with single casing wall pore, this structure is that original disposable casing wall pore of closing is divided into repeatedly and closes when piston is moved, and has certain time interval between closing for twice; Thereby make stepped the increasing progressively of pressure in the secondary piston chamber, therefore, the variation in pressure in the piston cavity has a level and smooth relatively process; Thereby realization smoothing buffer; Reduce owing to the pressure in the secondary piston chamber sharply increases the impact that causes with this, reduce the vibration and the noise of cylinder, prolong the working life of equipment.
Claims (7)
1. revolution actuator with buffer structure; Comprise cylinder and be arranged on the sliding device in the cylinder piston chamber; The two ends of sliding device are provided with secondary piston and back piston respectively; Secondary piston and back piston fuse through the tooth bar of the middle part setting of sliding device, tooth bar and the gear engagement that is provided with pto, and it is characterized in that: described cylinder is two; Be symmetrically set in the both sides of said gear (4); The two ends of cylinder are respectively equipped with protecgulum (5) and bonnet (6), and protecgulum is provided with and connects gas port (7), the secondary piston chamber (8) of cylinder with connect the preceding gas circuit (9) of gas port and be communicated with through the interior setting of protecgulum; Connect and also be connected with the back gas circuit on the gas port; Back gas circuit is connected and composed by the bonnet gas circuit (11) that is arranged on the casing wall gas circuit (10) on the cylinder casing wall and be arranged on the bonnet, and the gas port that connects of a cylinder is communicated with the back piston chamber (12) of another cylinder through casing wall gas circuit, bonnet gas circuit, and the joint that connects gas port and casing wall gas circuit is provided with flow control mechanism (13); Casing wall gas circuit near flow control mechanism is provided with the casing wall pore (14) that is communicated with the secondary piston chamber, and the two ends of secondary piston are respectively equipped with preceding seal ring (15) and increasing back sealing ring (16).
2. the revolution actuator of band buffer structure according to claim 1; It is characterized in that described flow control mechanism comprises through flow hole (17) that is arranged on the protecgulum and the buffering diaphragm (18) that is arranged on casing wall gas circuit end; Be provided with diaphragm chamber (19) near putting of through flow hole on the casing wall gas circuit; The buffering diaphragm is arranged in the diaphragm chamber; Be provided with throttle orifice (20) in the middle of the buffering diaphragm, the buffering diaphragm is provided with air inlet duct (21) away from the one side of protecgulum, and the diameter of said throttle orifice is less than the diameter of through flow hole.
3. the revolution actuator of band buffer structure according to claim 1 is characterized in that described flow control mechanism is the throttle orifice (20) that is arranged on the protecgulum.
4. according to the revolution actuator of claim 1 or 2 or 3 described band buffer structures; It is characterized in that the casing wall pore is 3 to 5 metering holes; Metering hole is arranged in a linear on axially at the casing wall of cylinder, and secondary piston is gone forward seal distance between the increasing back sealing ring greater than the casing wall gas circuit length at metering hole place.
5. the revolution actuator of band buffer structure according to claim 4 is characterized in that metering hole diameter away from protecgulum greater than the metering hole diameter near protecgulum, and the cross-section area of said metering hole is linear increment.
6. according to the revolution actuator of claim 1 or 2 or 3 said band buffer structures, it is characterized in that the cylinder protecgulum and the bonnet of gear both sides all is integrated, connect gas port, preceding gas circuit and the casing wall gas circuit corresponding with the both sides cylinder are symplex structure.
7. according to the revolution actuator of the said band buffer structure of claim 4, it is characterized in that the cylinder protecgulum and the bonnet of gear both sides all is integrated, connect gas port, preceding gas circuit and the casing wall gas circuit corresponding with the both sides cylinder are symplex structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202154222U CN202118025U (en) | 2011-06-23 | 2011-06-23 | Rotation actuation device with buffering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202154222U CN202118025U (en) | 2011-06-23 | 2011-06-23 | Rotation actuation device with buffering structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202118025U true CN202118025U (en) | 2012-01-18 |
Family
ID=45459094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202154222U Expired - Lifetime CN202118025U (en) | 2011-06-23 | 2011-06-23 | Rotation actuation device with buffering structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202118025U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261355A (en) * | 2011-06-23 | 2011-11-30 | 宁波亚德客自动化工业有限公司 | Rotary actuation device with buffer structure |
| CN102996564A (en) * | 2013-01-04 | 2013-03-27 | 东风汽车股份有限公司 | Swing rack cylinder with buffer |
| CN108674111A (en) * | 2018-03-23 | 2018-10-19 | 中国北方车辆研究所 | A kind of pinion and-rack rocker arm suspension |
-
2011
- 2011-06-23 CN CN2011202154222U patent/CN202118025U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261355A (en) * | 2011-06-23 | 2011-11-30 | 宁波亚德客自动化工业有限公司 | Rotary actuation device with buffer structure |
| CN102261355B (en) * | 2011-06-23 | 2014-01-08 | 宁波亚德客自动化工业有限公司 | Rotary actuation device with buffer structure |
| CN102996564A (en) * | 2013-01-04 | 2013-03-27 | 东风汽车股份有限公司 | Swing rack cylinder with buffer |
| CN102996564B (en) * | 2013-01-04 | 2015-09-23 | 东风汽车股份有限公司 | Swing rack cylinder with buffer |
| CN108674111A (en) * | 2018-03-23 | 2018-10-19 | 中国北方车辆研究所 | A kind of pinion and-rack rocker arm suspension |
| CN108674111B (en) * | 2018-03-23 | 2022-03-18 | 中国北方车辆研究所 | Rack and pinion formula rocking arm suspension |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1198062C (en) | Rotation apparatus with buffer mechanism | |
| CN202118025U (en) | Rotation actuation device with buffering structure | |
| CN102261355B (en) | Rotary actuation device with buffer structure | |
| JP6757472B2 (en) | Electronic expansion valve and freezing system equipped with it | |
| CN207122641U (en) | A kind of pneumatic actuator | |
| CN201884349U (en) | Cushioning device of revolving arm support | |
| JP3466121B2 (en) | Pneumatic cylinder with cushion mechanism | |
| CN104454710A (en) | Rotating movement control system | |
| CN103266949A (en) | Turbocharger capable of changing flowing channel through lever braking | |
| CN215486937U (en) | Adjustable buffering swing hydraulic cylinder for electro-hydraulic actuator | |
| CN107795373A (en) | A kind of turbocharger for possessing air inlet adjustment function | |
| CN210686223U (en) | Tubular silencer | |
| CN2440996Y (en) | Partly sustained pneumatic device for rotary valve | |
| CN108999833A (en) | A kind of air cylinder structure and locomotive | |
| CN113623408A (en) | Two-stage flap valve opening and closing device and operation method thereof | |
| CN209354460U (en) | A kind of air cylinder structure and locomotive | |
| CN206287183U (en) | The membrane cutting knife device that Rodless cylinder drives | |
| CN201696726U (en) | Energy-saving pneumatic actuator | |
| CN211398725U (en) | Take damping function's swing pneumatic cylinder | |
| CN111706506A (en) | Pneumatic driven liquid flowing device for pneumatic liquid conveying mechanism | |
| CN204572597U (en) | Twin channel piston valving electrohydraulic control | |
| CN216153752U (en) | Filling pressure switching device | |
| CN109057876A (en) | Low-pressure turbine air inlet guider | |
| CN203362670U (en) | Transmission device of pneumatic tool | |
| CN203570587U (en) | Disc ring crush multifunctional broad spectrum medium pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120118 Effective date of abandoning: 20140108 |
|
| RGAV | Abandon patent right to avoid regrant |