CN104653686A - Buffer with controllable buffering force - Google Patents
Buffer with controllable buffering force Download PDFInfo
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- CN104653686A CN104653686A CN201510064714.3A CN201510064714A CN104653686A CN 104653686 A CN104653686 A CN 104653686A CN 201510064714 A CN201510064714 A CN 201510064714A CN 104653686 A CN104653686 A CN 104653686A
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- oil groove
- piston
- groove
- oil
- buffer
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- 239000000872 buffer Substances 0.000 title claims abstract description 53
- 230000003139 buffering effect Effects 0.000 title claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims description 39
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 12
- 229920003023 plastic Polymers 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 238000010923 batch production Methods 0.000 abstract description 3
- 238000013016 damping Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/006—Braking devices, e.g. checks; Stops; Buffers for hinges having a cup-shaped fixing part, e.g. for attachment to cabinets or furniture
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/21—Brakes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/252—Type of friction
- E05Y2201/254—Fluid or viscous friction
- E05Y2201/256—Fluid or viscous friction with pistons or vanes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/262—Type of motion, e.g. braking
- E05Y2201/264—Type of motion, e.g. braking linear
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/20—Application of doors, windows, wings or fittings thereof for furniture, e.g. cabinets
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
The invention relates to a buffer with controllable buffering force. The buffer comprises a piston rod, a piston, a cylinder body and a buffering liquid oil, wherein the buffering liquid oil is filled into the cylinder body, one end of the piston rod is connected with the piston, the other end of the piston rod extends out of the cylinder body, an annular groove is formed in the piston, an oil through groove and/or an oil through notch is formed in the end part of the annular groove, a sealing element movably sleeves the end part of the annular groove, a quantitative oil through groove is formed in the middle part of the piston, and is independent from the annular groove without interference, and the buffer is used for controlling the buffering force in the working process through the matching of the oil through groove and the annular groove. By improving the structure, the buffer has the characteristics that the structure is simple and reasonable, the assembly is simple, the property is reliable, the sealing property is good, the cost is low, the batch production is easy, the finished rate is high, the buffering force is uniform, and the practicality is high.
Description
Technical field
The present invention relates to a kind of buffer controlling cushion effect.
Background technique
Chinese patent literature number discloses a kind of domestic damper for CN201133439Y on October 15th, 2008, specifically comprise the piston rod be arranged in cylinder body, piston rod one end connects with piston, middle part connects with Sealing, damper also comprises and is arranged on damping fin in cylinder body and banking stop, piston, damping fin and banking stop connect successively, piston rod one end is stretched in cylinder body, after banking stop and damping fin, connect with piston, piston arranged outside has one and above axial gap, damping fin is provided with circular step towards banking stop side, banking stop is provided with location short column towards damping fin side, piston, damping fin and keep certain between banking stop and inboard wall of cylinder block and cross oil-gap, piston is provided with one and above location pilum, location pilum is provided with the less upper locating column of external diameter.Piston in this structure, owing to being difficult to guarantee to make the standard of appointing, causing the oil sealing weak effect between itself and cylinder body, thus causes the cushion effect of buffer uneven, cannot reach the effect of at the uniform velocity opening and closing, therefore, be necessary to make further improvements.
Summary of the invention
Object of the present invention aims to provide a kind of simple and reasonable, assembling is simple, reliable performance, good airproof performance, cost is low, is easy to batch production, yield rate is high, cushion effect is consistent, can require the buffer determining the controlled cushion effect that buffer buffers requires at any time, to overcome deficiency of the prior art according to user.
By a kind of buffer controlling cushion effect that this object designs, comprise piston rod, piston, cylinder body and be filled in cylinder interior buffering liquid oil, one end of piston rod connects with piston, the other end stretches out outside cylinder body, it is characterized in that: piston is provided with circular groove, the end of circular groove was provided with oil groove and/or crossed oily breach, and movable sheath is provided with seal element, the middle part of piston is also provided with quantitatively crosses oil groove, quantitative cross oil groove and circular groove relatively independent, and do not interfere with each other, buffer by quantitative cross the control work that cooperatively interacts of oil groove and circular groove time cushion effect.
Described circular groove concave is arranged on the outer surface of piston, seal element is made up of plastics or rubber material and the inner wall size of outside dimension and cylinder body is suitable, and moveable stop collar is located on circular groove, seal element was blockaded when circular groove moves at least one spacing direction oil groove and/or cross the passage of oily breach; The middle part of piston be provided with at least in axially, tortuous quantitatively cross oil groove, quantitative cross oil groove and circular groove independently on piston.
Described piston rod is fixedly installed on piston and a direction is moved wherein time, seal element wherein moves in a spacing direction to the circular groove of piston, and the oil groove and/or cross the clearance channel formed between oily breach and cylinder body substantially blockaded, buffering liquid oil crosses oil groove flowing through quantitative, cross oil mass to diminish, buffer compresses and produces cushion effect; When piston rod moves round about, seal element moves to another spacing direction of circular groove of piston, cross oil groove and/or the clearance channel excessively formed between oily breach and cylinder body and quantitative oil groove of crossing to be interconnected, buffering liquid oil is through oil groove and/or cross oily breach, quantitative oil groove of crossing flows, cross oil mass and become large, buffer resets; Buffer is by controlling the control that buffering liquid oil flows through oil groove, the uninterrupted of circular groove realizes cushion effect.
The cross section of described circular groove is U-shaped, V-type or Y type, and the moveable stop collar of seal element to be located on circular groove and to act on the sidewall of circular groove when mobile spacing; Described quantitative oil groove excessively forms by axially crossing oil groove, radial mistake oil groove and/or through hole, one end of piston rod acted on quantitatively the end of oil groove and formed the oily passage of quantitative mistake therebetween, to limit the flow of buffering liquid oil, quantitative cross oil groove and circular groove relatively independent and do not interfere with each other.
Described piston is wholely set shaping by plastics or rubber material, piston rod is made up of metallic material and one end and piston are fixedly connected, and and axis crosses oil groove, radial mistake between oil groove and/or through hole forms the oily passage of quantitative mistake, to limit the flow of buffering liquid oil, the other end of piston rod stretches out outside cylinder body; Seal element is made up of the plastics with flexible or plasticity or rubber material, and moveable stop collar is located on circular groove.
The middle part of described piston is provided with functional hole, quantitative oil groove of crossing is arranged on functional hole, quantitative oil groove excessively forms by axially crossing oil groove, radial mistake oil groove and through hole, wherein axially cross the sidewall that oil groove is arranged on functional hole, radial direction crosses the bottom that oil groove is arranged on functional hole, and through hole and radial oil groove of crossing are communicated with, and one end of piston rod is fixedly installed on functional hole, and and axis crosses oil groove, radial mistake between oil groove and through hole forms the oily passage of quantitative mistake, and the other end of piston rod stretches out outside cylinder body; The cross section of circular groove is U-shaped, and its sidewall one end was provided with oil groove, and the other end was provided with oily breach, and the bottom correspondence of circular groove is crossed oil groove and is also provided with diversion division; Described seal element is O-ring seal and is made up of the plastics or rubber material of being with flexible or plasticity, and moveable stop collar is located on circular groove.
Described buffer also comprises end cap, the first elastic component, baffle plate and Sealing, and described end cap, the first elastic component, baffle plate and Sealing are on the piston rod sheathed successively.
Described end cap is fixedly installed on the opening end of cylinder body; Baffle plate is arranged on the front end of Sealing; First elastic component is spring and is placed between end cap and baffle plate, and its one end elastic reaction is on end cap, and the other end elastic reaction, on baffle plate, makes Sealing reset movement.
The rear end of described Sealing also arranges banking stop, and banking stop is fixedly installed on the inwall of cylinder body and is provided with several breach passed through for buffering liquid oil thereon; When buffer resets, the end position-limiting action of piston is on banking stop; Described Sealing is y-type seal ring and seals the surface of piston rod and the inwall of cylinder body respectively.
Also be provided with the second elastic component in described cylinder body, the second elastic component is spring and is arranged between piston and cylinder body, its one end elastic reaction in the end of piston, the other end elastic reaction at the inner bottom part of cylinder body, for the reset of piston provides elastic acting force.
The present invention is by the improvement of said structure, piston is provided with circular groove, the end of circular groove was provided with oil groove and/or crossed oily breach and movable sheath is provided with seal element, and the middle part of piston was also provided with quantitatively crosses oil groove, quantitative cross oil groove and circular groove relatively independent and do not interfere with each other.During use, a piston rod wherein direction moves, seal element wherein moves in a spacing direction to the circular groove of piston, and the oil groove and/or cross the clearance channel formed between oily breach and cylinder body substantially blockaded, now, buffering liquid oil can only cross oil groove flowing, because the mistake oil mass in the unit time diminishes from quantitative, make buffer produce larger cushion effect, buffer compresses and produces cushion effect; When piston rod moves round about, seal element moves to another spacing direction of circular groove of piston, cross oil groove and/or the clearance channel excessively formed between oily breach and cylinder body and quantitative oil groove of crossing to be interconnected, now, buffering liquid oil can from cross oil groove and/or cross oily breach, quantitative cross oil groove flowing, because the mistake oil mass in the unit time increases, the cushion effect that buffer produces reduces, buffer resets rapidly, and buffer is by controlling the control that buffering liquid oil flows through oil groove, the uninterrupted of circular groove realizes cushion effect; Efficiently solve the buffer oil sealing weak effect of prior art, the problems such as opening and closing speed is uneven, and the cushioning effect of buffer can be determined according to the requirement of user at any time, user-friendly.It has simple and reasonable, and assembling is simple, reliable performance, good airproof performance, and cost is low, is easy to batch production, the features such as yield rate is high, and cushion effect is consistent, practical.
Accompanying drawing explanation
Fig. 1 is the decomposition texture schematic diagram of first embodiment of the invention.
Fig. 2 is the assembly structure schematic diagram of first embodiment of the invention.
Sectional view when Fig. 3 is the reset of first embodiment of the invention.
Sectional view when Fig. 4 is the compression of first embodiment of the invention.
Fig. 5, Fig. 6 are the piston structure schematic diagram of first embodiment of the invention.
Fig. 7 is first embodiment of the invention and piston sectional structure schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
See Fig. 1-Fig. 7, originally the buffer of cushion effect can be controlled, comprise piston rod 1, piston 8, cylinder body 10 and be filled in cylinder body 10 inside buffering liquid oil, one end of piston rod 1 connects with piston 8, the other end stretches out outside cylinder body 10, piston 8 is provided with circular groove 8.1, the end of circular groove 8.1 was provided with oil groove 8.3 and/or crossed oily breach 8.4, and movable sheath is provided with seal element 7, the middle part of piston 8 is also provided with quantitatively crosses oil groove 8.5, quantitative oil groove 8.5 is excessively relatively independent with circular groove 8.1, and do not interfere with each other, buffer by quantitative cross the control work that cooperatively interacts with circular groove 8.1 of oil groove 8.5 time cushion effect.
Circular groove 8.1 concave is arranged on the outer surface of piston 8, seal element 7 is made up of plastics or rubber material and the inner wall size of outside dimension and cylinder body 10 is suitable, and moveable stop collar is located on circular groove 8.1, seal element 7 was blockaded when circular groove 8.1 moves at least one spacing direction oil groove 8.3 and/or cross the passage of oily breach 8.4; The middle part of piston 8 be provided with at least in axially, tortuous quantitatively cross oil groove 8.5, quantitative cross oil groove 8.5 and circular groove 8.1 independently on piston 8.
Specifically, piston rod 1 is fixedly installed on piston 8 and a direction is moved wherein time, seal element 7 wherein moves in a spacing direction to the circular groove 8.1 of piston 8, and the oil groove 8.3 and/or cross the clearance channel formed between oily breach 8.4 and cylinder body 10 substantially blockaded, buffering liquid oil flows through quantitative oil groove 8.5 of crossing, cross oil mass to diminish, buffer compresses and produces cushion effect; When piston rod 1 moves round about, seal element 7 moves to another spacing direction of circular groove 8.1 of piston 8, cross oil groove 8.3 and/or the clearance channel excessively formed between oily breach 8.4 and cylinder body 10 and quantitative oil groove 8.5 of crossing to be interconnected, buffering liquid oil is through oil groove 8.3 and/or cross oily breach 8.4, quantitative oil groove 8.5 of crossing flows, cross oil mass and become large, buffer resets; By controlling, buffering liquid oil flows through oil groove 8.5 to buffer, the uninterrupted of circular groove 8.1 realizes the control of cushion effect.
More particularly, the cross section of circular groove 8.1 is U-shaped, V-type or Y type, and the moveable stop collar of seal element 7 to be located on circular groove 8.1 and to act on the sidewall of circular groove 8.1 when mobile spacing; Described quantitative oil groove 8.5 is excessively by axially crossing oil groove 8.51, radial oil groove 8.52 and/or through hole 8.53 excessively, one end of piston rod 1 acted on quantitatively the end of oil groove 8.5 and formed the oily passage of quantitative mistake therebetween, to limit the flow of buffering liquid oil, quantitative to cross oil groove 8.5 relatively independent and do not interfere with each other with circular groove 8.1.
Piston 8 is wholely set shaping by plastics or rubber material, piston rod 1 is made up of metallic material and one end and piston 8 are fixedly connected, and and axis crosses oil groove 8.51, radial mistake between oil groove 8.52 and/or through hole 8.53 forms the oily passage of quantitative mistake, to limit the flow of buffering liquid oil, the other end of piston rod 1 stretches out outside cylinder body 10; Seal element 7 is made up of the plastics or rubber material being with flexible or plasticity, and moveable stop collar is located on circular groove 8.1.
The middle part of piston 8 is provided with functional hole 8.7, quantitative oil groove 8.5 of crossing is arranged on functional hole 8.7, quantitative oil groove 8.5 of crossing is by axially crossing oil groove 8.51, radial direction crosses oil groove 8.52 and through hole 8.53 forms, wherein axially cross the sidewall that oil groove 8.51 is arranged on functional hole 8.7, radial direction crosses the bottom that oil groove 8.52 is arranged on functional hole 8.7, through hole 8.53 is communicated with radial oil groove 8.52 of crossing, one end of piston rod 1 is fixedly installed on functional hole 8.7, and cross oil groove 8.51 with axial, radial mistake between oil groove 8.52 and through hole 8.53 forms the oily passage of quantitative mistake, the other end of piston rod 1 stretches out outside cylinder body 10, the cross section of circular groove 8.1 is U-shaped, and its sidewall one end was provided with oil groove 8.3, and the other end was provided with oily breach 8.4, and the bottom correspondence of circular groove 8.1 is crossed oil groove 8.3 and is also provided with diversion division 8.2, described seal element 7 is O-ring seal and is made up of the plastics or rubber material of being with flexible or plasticity, and moveable stop collar is located on circular groove 8.1.
During use, see Fig. 3, Fig. 4, when piston rod 1 the right to Fig. 3 is moved, seal element 7 moves to the spacing direction, left side of the circular groove 8.1 of piston 8, and the oil groove 8.3 and cross the clearance channel formed between oily breach 8.4 and cylinder body 10 substantially blockaded, now, buffering liquid oil can only flow from quantitative oil groove 8.5 of crossing, and because the mistake oil mass in the unit time diminishes, makes buffer produce larger cushion effect, buffer compresses and produces cushion effect, and its working procedure is see the change procedure of Fig. 3 to Fig. 4.When piston rod 1 moves to the left side of Fig. 4, seal element 7 moves to the spacing direction, right side of the circular groove 8.1 of piston 8, cross oil groove 8.3 and the clearance channel excessively formed between oily breach 8.4 and cylinder body 10 and quantitative oil groove 8.5 of crossing to be interconnected, now, buffering liquid oil can from oil groove 8.3, excessively oily breach 8.4, quantitative oil groove 8.5 of crossing flow excessively, because the mistake oil mass in the unit time increases, the cushion effect that buffer produces reduces, buffer resets rapidly, and its working procedure is see the change procedure of Fig. 4 to Fig. 3.By controlling, buffering liquid oil flows through oil groove 8.5 to buffer, the uninterrupted of circular groove 8.1 realizes the control of cushion effect.
In said structure, buffer also comprises end cap 2, first elastic component 3, baffle plate 4 and Sealing 5, and described end cap 2, first elastic component 3, baffle plate 4 and Sealing 5 are set on piston rod 1 successively.End cap 2 is fixedly installed on the opening end of cylinder body 10; Baffle plate 4 is arranged on the front end of Sealing 5; First elastic component 3 is spring and is placed between end cap 2 and baffle plate 4, and its one end elastic reaction is on end cap 2, and the other end elastic reaction, on baffle plate 4, makes Sealing 5 reset movement.The rear end of Sealing 5 also arranges banking stop 6, and banking stop 6 is fixedly installed on the inwall of cylinder body 10 and is provided with several breach passed through for buffering liquid oil thereon; When buffer resets, the end position-limiting action of piston 8 is on banking stop 6; Described Sealing 5 is y-type seal ring and seals the surface of piston rod 1 and the inwall of cylinder body 10 respectively.
The second elastic component 9 is also provided with in cylinder body 10, second elastic component 9 is spring and is arranged between piston 8 and cylinder body 10, its one end elastic reaction in the end of piston 8, the other end elastic reaction at the inner bottom part of cylinder body 10, for the reset of piston 8 provides elastic acting force.
Above-mentioned is preferred version of the present invention, and those of ordinary skill in the art, to its simple modification or transformation, all drop within protection scope of the present invention.
Claims (10)
1. one kind can control the buffer of cushion effect, comprise piston rod (1), piston (8), cylinder body (10) and be filled in the inner buffering liquid oil of cylinder body (10), one end of piston rod (1) connects with piston (8), the other end stretches out cylinder body (10) outward, it is characterized in that: piston (8) is provided with circular groove (8.1), the end of circular groove (8.1) was provided with oil groove (8.3) and/or crossed oily breach (8.4), and movable sheath is provided with seal element (7), the middle part of piston (8) is also provided with quantitatively crosses oil groove (8.5), quantitative oil groove (8.5) is excessively relatively independent with circular groove (8.1), and do not interfere with each other, buffer crosses oil groove (8.5) and the cushion effect during control work that cooperatively interacts of circular groove (8.1) by quantitative.
2. can control the buffer of cushion effect according to claim 1, it is characterized in that described circular groove (8.1) concave is arranged on the outer surface of piston (8), seal element (7) is made up of plastics or rubber material and the inner wall size of outside dimension and cylinder body (10) is suitable, and moveable stop collar is located on circular groove (8.1), seal element (7) was blockaded when circular groove (8.1) moves at least one spacing direction oil groove (8.3) and/or cross the passage of oily breach (8.4); The middle part of piston (8) be provided with at least in axially, tortuous quantitatively cross oil groove (8.5), quantitative cross oil groove (8.5) and circular groove (8.1) independently on piston (8).
3. can control the buffer of cushion effect according to claim 2, it is characterized in that described piston rod (1) be fixedly installed on piston (8) upper and a direction is moved wherein time, seal element (7) wherein moves in a spacing direction to the circular groove (8.1) of piston (8), and the oil groove (8.3) and/or cross the clearance channel that formed between oily breach (8.4) and cylinder body (10) substantially blockaded, buffering liquid oil crosses oil groove (8.5) flowing through quantitative, cross oil mass to diminish, buffer compresses and produces cushion effect; When piston rod (1) moves round about, seal element (7) moves to another spacing direction of circular groove (8.1) of piston (8), cross oil groove (8.3) and/or the clearance channel excessively formed between oily breach (8.4) and cylinder body (10) and quantitative oil groove (8.5) of crossing to be interconnected, buffering liquid oil is through oil groove (8.3) and/or cross oily breach (8.4), quantitative oil groove (8.5) of crossing flows, cross oil mass and become large, buffer resets; By controlling, buffering liquid oil flows through oil groove (8.5) to buffer, the uninterrupted of circular groove (8.1) realizes the control of cushion effect.
4. can control the buffer of cushion effect according to claim 3, it is characterized in that the cross section of described circular groove (8.1) is U-shaped, V-type or Y type, it is upper and act on the sidewall of circular groove (8.1) when mobile spacing that the moveable stop collar of seal element (7) is located at circular groove (8.1); Described quantitative oil groove (8.5) excessively forms by axially crossing oil groove (8.51), radial mistake oil groove (8.52) and/or through hole (8.53), one end of piston rod (1) acted on quantitatively the end of oil groove (8.5) and formed the oily passage of quantitative mistake therebetween, to limit the flow of buffering liquid oil, quantitative to cross oil groove (8.5) relatively independent and do not interfere with each other with circular groove (8.1).
5. can control the buffer of cushion effect according to claim 4, it is characterized in that described piston (8) is wholely set shaping by plastics or rubber material, piston rod (1) is made up of metallic material and one end and piston (8) are fixedly connected, and and axis crosses oil groove (8.51), radial mistake between oil groove (8.52) and/or through hole (8.53) forms the oily passage of quantitative mistake, to limit the flow of buffering liquid oil, the other end of piston rod (1) stretches out cylinder body (10) outward; Seal element (7) is made up of the plastics or rubber material being with flexible or plasticity, and moveable stop collar is located on circular groove (8.1).
6. can control the buffer of cushion effect according to claim 5, it is characterized in that the middle part of described piston (8) is provided with functional hole (8.7), quantitative oil groove (8.5) of crossing is arranged on functional hole (8.7), quantitative oil groove (8.5) of crossing is by axially crossing oil groove (8.51), radial direction crosses oil groove (8.52) and through hole (8.53) composition, wherein axially cross the sidewall that oil groove (8.51) is arranged on functional hole (8.7), radial direction crosses the bottom that oil groove (8.52) is arranged on functional hole (8.7), through hole (8.53) is communicated with radial oil groove (8.52) of crossing, one end of piston rod (1) is fixedly installed on functional hole (8.7), and cross oil groove (8.51) with axial, radial mistake between oil groove (8.52) and through hole (8.53) forms the oily passage of quantitative mistake, the other end of piston rod (1) stretches out cylinder body (10) outward, the cross section of circular groove (8.1) is U-shaped, its sidewall one end was provided with oil groove (8.3), the other end was provided with oily breach (8.4), and the bottom correspondence of circular groove (8.1) is crossed oil groove (8.3) and is also provided with diversion division (8.2), described seal element (7) is for O-ring seal and be made up of the plastics of the flexible or plasticity of band or rubber material, and moveable stop collar is located on circular groove (8.1).
7. the buffer of cushion effect can be controlled according to any one of claim 1-6, it is characterized in that described buffer also comprises end cap (2), the first elastic component (3), baffle plate (4) and Sealing (5), described end cap (2), the first elastic component (3), baffle plate (4) and Sealing (5) are set on piston rod (1) successively.
8. can control the buffer of cushion effect according to claim 7, it is characterized in that described end cap (2) is fixedly installed on the opening end of cylinder body (10); Baffle plate (4) is arranged on the front end of Sealing (5); First elastic component (3) is for spring and be placed between end cap (2) and baffle plate (4), its one end elastic reaction is on end cap (2), the other end elastic reaction, on baffle plate (4), makes Sealing (5) reset movement.
9. can control the buffer of cushion effect according to claim 8, it is characterized in that the rear end of described Sealing (5) also arranges banking stop (6), banking stop (6) is fixedly installed on the inwall of cylinder body (10) and is provided with several breach passed through for buffering liquid oil thereon; When buffer resets, the end position-limiting action of piston (8) is on banking stop (6); Described Sealing (5) is for y-type seal ring and seal the surface of piston rod (1) and the inwall of cylinder body (10) respectively.
10. the buffer of cushion effect can be controlled according to claim 6 or 9, it is characterized in that also being provided with the second elastic component (9) in described cylinder body (10), second elastic component (9) is for spring and be arranged between piston (8) and cylinder body (10), its one end elastic reaction is in the end of piston (8), the other end elastic reaction at the inner bottom part of cylinder body (10), for the reset of piston (8) provides elastic acting force.
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| CN201510064714.3A CN104653686B (en) | 2015-02-06 | 2015-02-06 | Buffer with controllable buffering force |
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| CN201510064714.3A CN104653686B (en) | 2015-02-06 | 2015-02-06 | Buffer with controllable buffering force |
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| CN107165967A (en) * | 2016-03-08 | 2017-09-15 | 川湖科技股份有限公司 | Buffer unit |
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| Publication number | Publication date |
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| CN104653686B (en) | 2017-02-01 |
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