CN102705300A - Large-diameter buffer oil cylinder capable of adjusting buffering effect - Google Patents
Large-diameter buffer oil cylinder capable of adjusting buffering effect Download PDFInfo
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- CN102705300A CN102705300A CN2012101718123A CN201210171812A CN102705300A CN 102705300 A CN102705300 A CN 102705300A CN 2012101718123 A CN2012101718123 A CN 2012101718123A CN 201210171812 A CN201210171812 A CN 201210171812A CN 102705300 A CN102705300 A CN 102705300A
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Abstract
The invention relates to a large-diameter buffer oil cylinder capable of adjusting buffering effect. The buffer oil cylinder comprises a cylinder body, a piston rod and a piston, wherein a bottom cover is arranged at the bottom of the cylinder body, and a buffer device is arranged at one end of the piston facing the bottom cover. The buffer device comprises a hollow column body fixedly connected with the piston, wherein one end of the hollow column body, which faces to the bottom of the cylinder body, is opened; and a through hole is formed on the side surface of the hollow column body. The buffer device also comprises a buffer sliding sleeve used for enclosing the through hole of the hollow column body, and an elastic element capable of enabling the buffer sliding sleeve to reset, wherein one end of the elastic element is fixedly connected with the piston, and the hollow column body is sleeved with the buffer sliding sleeve. A groove matched with the buffer device is formed at the bottom of the cylinder body, and a blocking mechanism for limiting the traveling of the buffer sliding sleeve is arranged in the groove. Because the buffer oil cylinder provided by the invention has the adjustable buffering effect, the use reliability of the oil cylinder is increased, and the service cost is lowered. Therefore, the buffer oil cylinder can be widely applied to the oil cylinders in larger sizes. In actual debugging, the buffering effect can be adjusted by increasing or decreasing small holes.
Description
Technical field
The present invention relates to the buffering hydraulic oil cylinder technical field, particularly a kind of cushion cylinder of big cylinder diameter can regulate cushioning effect.
Background technique
The tradition cushion cylinder is to utilize the bumper post of piston base and the gap of cushion hole to come the fluid flow of control piston bottom outflow, thereby avoids piston bump cylinder bottom under at a high speed.Though this mode is simple, in a single day part is shaped, and just can't adjust cushioning effect, and the buffer gap is to be difficult to calculate accurately in advance.This has caused very big difficulty in the practice of cushion cylinder.
Summary of the invention
The technical problem that the present invention will solve is: in order to overcome in the existing technology, and the deficiency that existing cushion cylinder can not cushioning effect be adjusted, the present invention provides a kind of cushion cylinder of big cylinder diameter can regulate cushioning effect.
The technical solution adopted for the present invention to solve the technical problems is: a kind of cushion cylinder of big cylinder diameter can regulate cushioning effect; Comprise cylinder body, piston rod and piston; The bottom of cylinder body has bottom, and described piston is provided with damping device towards an end of bottom, and described damping device comprises the hollow cylinder that is fixedly connected with piston; Described hollow cylinder is an opening towards an end of bottom, and the side of hollow cylinder offers through hole; Described damping device also comprises buffering sliding sleeve that is used for through hole on the closed hollow cylinder and the elastic member that is used to the buffering sliding sleeve is resetted; Described elastic member one end is fixedly connected with piston; Described snubber slide cover is placed in outside the hollow cylinder, and buffering sliding sleeve and hollow cylinder size are complementary; Described bottom offers the groove that cooperates with damping device, and described groove and hollow cylinder size are complementary, and is provided with the countercheck mechanism that is used to limit buffering sliding sleeve stroke in the groove.
Fix with piston for ease, as preferably, described hollow cylinder is the cup of an end opening, is connected with piston thread at the bottom of the cup cup.
Damage the contact position with piston in order to prevent to cushion sliding sleeve, described piston is provided with cushion pad towards an end of bottom, and when snubber slide cover compression elastic member and an end during near piston base, cushion pad is connected with an end in contact that cushions sliding sleeve.
In order to guarantee that countercheck mechanism limits the buffering sliding sleeve, the contacted end outer surface of described buffering sliding sleeve and countercheck mechanism is provided with flange.
As a kind of optimal way, described groove comprises the bottom land part that is complementary with hollow cylinder, and with the slot-open-section that is complementary of buffering sliding sleeve, form step between described bottom land part and the slot-open-section, described step is a countercheck mechanism.
In order to prevent that cushioning sliding sleeve breaks away from hollow cylinder, a kind of mode is that described hollow cylinder is provided with the rib that is used to prevent to cushion sliding sleeve disengaging hollow cylinder towards an end outer surface of bottom; Another kind of mode is that the other end of described elastic member is fixedly connected with the buffering sliding sleeve.
The invention has the beneficial effects as follows; The cushion cylinder of the big cylinder diameter can regulate of the present invention cushioning effect; The through hole of on hollow cylinder, processing as required after snubber slide is enclosed within and runs into bottom, is progressively closed the through hole on the hollow cylinder; Thereby reach the outflow flow that progressively reduces piston base fluid, avoid the piston slap cylinder bottom; Can be widely used on the oil cylinder of big specification, the part of buffering can be processed in the standardization numerical control, and is more accurately reliable; And cushioning effect can be regulated, and increases the reliability that oil cylinder uses, and has reduced service cost, when reality is debugged, can regulate cushioning effect through increasing and reduce aperture.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the cushion cylinder embodiment's 1 of the big cylinder diameter can regulate of the present invention cushioning effect a structural representation.
Fig. 2 is the partial enlarged drawing at A place among Fig. 3.
Fig. 3 is that embodiment's 1 medi-spring of the cushion cylinder of the big cylinder diameter can regulate of the present invention cushioning effect is in the structural representation under the relaxed state.
Fig. 4 is that embodiment's 2 medi-springs of the cushion cylinder of the big cylinder diameter can regulate of the present invention cushioning effect are in the structural representation under the relaxed state.
Among the figure 1, piston, 2, bottom, 3, hollow cylinder, 3-1, rib, 3-2, through hole, 4, the buffering sliding sleeve, 5, elastic member, 6, groove, 6-1, countercheck mechanism, 7, start one-way valve, 8, cushion pad.
Embodiment
Combine accompanying drawing that the present invention is done further detailed explanation now.These accompanying drawings are the schematic representation of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
Like Fig. 1, Fig. 2 and shown in Figure 3, the cushion cylinder embodiment's 1 of the big cylinder diameter can regulate of the present invention cushioning effect structural representation.Comprise cylinder body, piston rod and piston 1; The bottom of cylinder body has bottom 2; Piston 1 is provided with damping device towards an end of bottom 2, and damping device comprises the hollow cylinder 3 that is fixedly connected with piston 1, and hollow cylinder 3 is the cup towards an end opening of bottom 2; And the side of hollow cylinder 3 offers through hole 3-2, and the cup end of hollow cylinder 3 is threaded with piston 1.
Damping device also comprises buffering sliding sleeve 4 that is used for through hole 3-2 on the closed hollow cylinder 3 and the elastic member 5 that is used to buffering sliding sleeve 4 is resetted; Elastic member 5 one ends are fixedly connected with piston 1; The other end is fixedly connected with buffering sliding sleeve 4; Buffering sliding sleeve 4 is placed in outside the hollow cylinder 3, and buffering sliding sleeve 4 is complementary with hollow cylinder 3 sizes; Bottom 2 offers the groove 6 that cooperates with damping device; Groove 6 comprises the bottom land part that is complementary with hollow cylinder 3; And with the slot-open-section that is complementary of buffering sliding sleeve 4, form step between bottom land part and the slot-open-section, step is the countercheck mechanism 6-1 that is used to limit buffering sliding sleeve stroke; Buffering sliding sleeve 4 is provided with flange 4-1 with the contacted end outer surface of countercheck mechanism 6-1.
Piston 1 is provided with cushion pad 8 towards an end of bottom 2, and when cushioning sliding sleeve 4 pressure elasticity parts 5 and an end near piston 1 bottom, cushion pad 8 is connected with an end in contact of buffering sliding sleeve 4.
The effect that starts one-way valve 7 is behind the through hole 3-2 Close All on the hollow cylinder 3, makes hydraulic oil get into oil cylinder through starting one-way valve 7.
As shown in Figure 3, hollow cylinder 3 is provided with the rib 3-1 that is used to prevent to cushion sliding sleeve 4 disengaging hollow cylinders 3 towards an end outer surface of bottom 2.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (8)
1. the cushion cylinder of one kind big cylinder diameter can regulate cushioning effect; Comprise cylinder body, piston rod and piston (1); The bottom of cylinder body has bottom (2), and described piston (1) is provided with damping device towards an end of bottom (2), it is characterized in that: described damping device comprises the hollow cylinder (3) that is fixedly connected with piston (1); Described hollow cylinder (3) is an opening towards an end of bottom (2), and the side of hollow cylinder (3) offers through hole (3-2); Described damping device comprises that also being used for buffering sliding sleeve (4) that closed hollow cylinder (3) goes up through hole (3-2) cushions the elastic member (5) that sliding sleeve (4) resets with being used to make; Described elastic member (5) one ends are fixedly connected with piston (1); Described buffering sliding sleeve (4) is placed in outside the hollow cylinder (3), and buffering sliding sleeve (4) is complementary with hollow cylinder (3) size; Described bottom (2) offers the groove (6) that cooperates with damping device, is provided with the countercheck mechanism (6-1) that is used to limit buffering sliding sleeve stroke in the groove (6).
2. the cushion cylinder of big cylinder diameter can regulate cushioning effect as claimed in claim 1 is characterized in that: described hollow cylinder (3) is the cup of an end opening.
3. the cushion cylinder of big cylinder diameter can regulate cushioning effect as claimed in claim 2 is characterized in that: the cup end of described hollow cylinder (3), be threaded with piston (1).
4. the cushion cylinder of big cylinder diameter can regulate cushioning effect as claimed in claim 1; It is characterized in that: described piston (1) is provided with cushion pad (8) towards an end of bottom (2); When cushioning sliding sleeve (4) pressure elasticity parts (5) and an end near piston (1) bottom, cushion pad (8) is connected with an end in contact of buffering sliding sleeve (4).
5. the cushion cylinder of big cylinder diameter can regulate cushioning effect as claimed in claim 1 is characterized in that: described buffering sliding sleeve (4) is provided with flange (4-1) with the contacted end outer surface of countercheck mechanism (6-1).
6. the cushion cylinder of big cylinder diameter can regulate cushioning effect as claimed in claim 1; It is characterized in that: described groove (6) comprises the bottom land part that is complementary with hollow cylinder (3); And with the slot-open-section that is complementary of buffering sliding sleeve (4); Form step between described bottom land part and the slot-open-section, described step is countercheck mechanism (6-1).
7. the cushion cylinder of big cylinder diameter can regulate cushioning effect as claimed in claim 1 is characterized in that: described hollow cylinder (3) is provided with the rib (3-1) that is used to prevent to cushion sliding sleeve (4) disengaging hollow cylinder (3) towards an end outer surface of bottom (2).
8. the cushion cylinder of big cylinder diameter can regulate cushioning effect as claimed in claim 1 is characterized in that: the other end of described elastic member (5) is fixedly connected with buffering sliding sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101718123A CN102705300A (en) | 2012-05-29 | 2012-05-29 | Large-diameter buffer oil cylinder capable of adjusting buffering effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101718123A CN102705300A (en) | 2012-05-29 | 2012-05-29 | Large-diameter buffer oil cylinder capable of adjusting buffering effect |
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| Publication Number | Publication Date |
|---|---|
| CN102705300A true CN102705300A (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101718123A Pending CN102705300A (en) | 2012-05-29 | 2012-05-29 | Large-diameter buffer oil cylinder capable of adjusting buffering effect |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711747A (en) * | 2013-11-29 | 2014-04-09 | 安徽凯信机电科技有限公司 | Hydraulic cylinder with throttling buffer mechanism |
| CN103821790A (en) * | 2013-11-29 | 2014-05-28 | 安徽凯信机电科技有限公司 | Hydraulic cylinder with buffering mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11132203A (en) * | 1997-10-28 | 1999-05-18 | Hitachi Constr Mach Co Ltd | Cushioning device for hydraulic cylinder |
| CN2498402Y (en) * | 2001-08-23 | 2002-07-03 | 赵怀文 | Fuel cylinder with piston reversing damp |
| CN201330769Y (en) * | 2008-12-05 | 2009-10-21 | 韶关液压件厂有限公司 | Surface-contact type cushioning device for hydraulic cylinder |
| CN101776104A (en) * | 2010-03-04 | 2010-07-14 | 合肥市力恒科技有限责任公司 | Single-acting plunger type buffering hydraulic oil cylinder |
| CN102108991A (en) * | 2010-07-23 | 2011-06-29 | 三一重工股份有限公司 | Hydraulic cylinder and relative device thereof, hydraulic buffer system, excavator and concrete pump truck |
| CN202560693U (en) * | 2012-05-29 | 2012-11-28 | 常州海宏液压设备有限公司 | Large-cylinder diameter cushion effect-adjustable cushion cylinder |
-
2012
- 2012-05-29 CN CN2012101718123A patent/CN102705300A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11132203A (en) * | 1997-10-28 | 1999-05-18 | Hitachi Constr Mach Co Ltd | Cushioning device for hydraulic cylinder |
| CN2498402Y (en) * | 2001-08-23 | 2002-07-03 | 赵怀文 | Fuel cylinder with piston reversing damp |
| CN201330769Y (en) * | 2008-12-05 | 2009-10-21 | 韶关液压件厂有限公司 | Surface-contact type cushioning device for hydraulic cylinder |
| CN101776104A (en) * | 2010-03-04 | 2010-07-14 | 合肥市力恒科技有限责任公司 | Single-acting plunger type buffering hydraulic oil cylinder |
| CN102108991A (en) * | 2010-07-23 | 2011-06-29 | 三一重工股份有限公司 | Hydraulic cylinder and relative device thereof, hydraulic buffer system, excavator and concrete pump truck |
| CN202560693U (en) * | 2012-05-29 | 2012-11-28 | 常州海宏液压设备有限公司 | Large-cylinder diameter cushion effect-adjustable cushion cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711747A (en) * | 2013-11-29 | 2014-04-09 | 安徽凯信机电科技有限公司 | Hydraulic cylinder with throttling buffer mechanism |
| CN103821790A (en) * | 2013-11-29 | 2014-05-28 | 安徽凯信机电科技有限公司 | Hydraulic cylinder with buffering mechanism |
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Application publication date: 20121003 |