CN203430907U - Variable-position hydraulic cylinder buffer device - Google Patents
Variable-position hydraulic cylinder buffer device Download PDFInfo
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- CN203430907U CN203430907U CN201320524707.3U CN201320524707U CN203430907U CN 203430907 U CN203430907 U CN 203430907U CN 201320524707 U CN201320524707 U CN 201320524707U CN 203430907 U CN203430907 U CN 203430907U
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- cylinder
- cylinder body
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- hydraulic cylinder
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Abstract
Provided is a variable-position hydraulic cylinder buffer device. The variable-position hydraulic cylinder buffer device comprises a cylinder body, wherein an axial through hole is formed in the cylinder body, a piston and a connecting rod of the piston extend into the through hole, and are movably connected with the cylinder body, a cylinder cover is arranged on the cylinder body, an adjusting rod which extends into the cylinder body is arranged in the cylinder cover, an oil passing cavity is defined by the adjusting rod and the inner wall of the cylinder cover, and the oil passing cavity and the through hole formed in the cylinder body are arranged in a separated mode. An assembling hole is formed in one end, extending into the cylinder body, of the adjusting rod, and is communicated with the oil passing cavity. The position, corresponding to the assembling hole, of the piston extends to form a protruding column, the protruding column is arranged in the assembling hole in a sliding mode, a buffer cavity is defined by the adjusting rod, the protruding column, the piston and the cylinder body, and a gap is formed between the protruding column and the assembling hole. The variable-position hydraulic cylinder buffer device can achieve buffering at any position within the range of the stroke of a hydraulic cylinder, and has the advantages of being simple and reasonable in structure, good in buffering effect and convenient to process and produce.
Description
Technical field
The utility model relates to the cylinder cushion device of a kind of oil hydraulic cylinder, particularly a kind of variable position.
Background technique
Oil hydraulic cylinder is conventional power plant, and when the stroke of oil hydraulic cylinder is at the end, the piston of oil hydraulic cylinder can collide with cylinder cap, produces and impacts.In order to reduce to impact, conventionally can on the cylinder cap of oil hydraulic cylinder, damping mechanism be set.But, due to the intrinsic reason of hydraulic system, when a certain accurate position that requires oil hydraulic cylinder in design runlength stops, often need in oil hydraulic cylinder, add mechanical trip controlling device.
Damping mechanism of the prior art is fixedly installed on the two ends cylinder cap of oil hydraulic cylinder conventionally, ineffective after oil hydraulic cylinder adds mechanical trip to regulate.Therefore, be necessary to be further improved and perfect.
Chinese patent literature CN1584349A discloses a kind of single rod double-action face near symmetrical oil hydraulic cylinder on 02 23rd, 2005.One end of cylinder bottom and inner piston rod is connected, one end of piston and piston rod is connected, be arranged between cylinder barrel and inner piston rod, the other end and the inner carrier of inner piston rod are connected, being slidably matched for sealing between inner carrier and piston rod endoporus, between piston and cylinder barrel, be being slidably matched of sealing, piston rod and cylinder cap are slidably matched for sealing; The a chamber that cylinder barrel, piston, inner piston rod, inner carrier and cylinder bottom form is communicated with outside oil circuit through A mouth; The b chamber being formed by cylinder barrel, piston, piston rod and cylinder cap is communicated with outside oil circuit through B mouth; The t chamber being formed by inner carrier and piston rod is through the logical outside atmosphere of T mouth.
Model utility content
The purpose of this utility model aims to provide a kind of simple and reasonable, good buffer effect, is convenient to the cylinder cushion device of the variable position of processing, to overcome deficiency of the prior art.
By the cylinder cushion device of a kind of variable position of this object design, comprise cylinder body, cylinder body is provided with axial reach through hole, piston and connecting rod thereof stretch in reach through hole and with cylinder body and form and be flexibly connected, on cylinder body, be provided with cylinder cap, its structure characteristic is in cylinder cap, to be provided with the adjustable lever stretching in cylinder body, and the inwall of this adjustable lever and cylinder cap surrounded oil pocket jointly, and this reach through hole isolation of crossing on oil pocket and cylinder body arranges.
Further, one end that described adjustable lever stretches into cylinder body is provided with pilot hole, and this pilot hole communicates with mistake oil pocket.
Further, projection is extended in the position of the corresponding pilot hole of described piston, and what this projection slided is arranged in pilot hole, and adjustable lever, projection, piston and cylinder body surround buffer cavity jointly.
Further, between described projection and pilot hole, be provided with gap.
The utility model adopts after above-mentioned technological scheme, and adjustable lever can regulate arbitrarily fixing by the axial direction along cylinder body in the stroke range of oil hydraulic cylinder; When the projection on piston enters the pilot hole on adjustable lever, the oil in buffer cavity is drained to crossing oil pocket by the gap between projection and pilot hole, thereby realizes cushioning effect.
Buffering can be realized in the arbitrary position of the utility model in the stroke range of oil hydraulic cylinder, has simple and reasonable, good buffer effect, is convenient to the feature of processing.
Accompanying drawing explanation
Fig. 1 is the utility model one embodiment's biopsy cavity marker devices structural representation.
Fig. 2 is the A place enlarged diagram in Fig. 1.
Biopsy cavity marker devices schematic diagram when Fig. 3 is the utility model use.
In figure: 1 is adjustable lever, 2 was oil pocket, and 3 is pilot hole, and 4 is cylinder cap, and 5 is buffer cavity, and 6 is projection, and 7 is cylinder body, and 8 is piston.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Referring to Fig. 1-Fig. 3, the cylinder cushion device of this variable position, comprise cylinder body 7, cylinder body 7 is provided with axial reach through hole, piston 8 and connecting rod thereof stretch in reach through hole and with cylinder body 7 and form and be flexibly connected, and are provided with cylinder cap 4 on cylinder body 7, are provided with the adjustable lever 1 stretching in cylinder body 7 in cylinder cap 4, this adjustable lever 1 surrounded oil pocket 2 jointly with the inwall of cylinder cap 4, and this is crossed oil pocket 2 and arranges with the reach through hole isolation on cylinder body 7.
In the present embodiment, one end that adjustable lever 1 stretches into cylinder body 7 is provided with pilot hole 3, and this pilot hole 3 communicates with mistake oil pocket 2.
Between projection 6 and pilot hole 3, be provided with gap.
Claims (4)
1. the cylinder cushion device of a variable position, comprise cylinder body (7), cylinder body (7) is provided with axial reach through hole, piston (8) and connecting rod thereof stretch in reach through hole and with cylinder body (7) and form and be flexibly connected, on cylinder body (7), be provided with cylinder cap (4), it is characterized in that being provided with and stretching into the interior adjustable lever (1) of cylinder body (7) in cylinder cap (4), this adjustable lever (1) surrounded oil pocket (2) jointly with the inwall of cylinder cap (4), and this is crossed oil pocket (2) and arranges with the reach through hole isolation on cylinder body (7).
2. the cylinder cushion device of variable position according to claim 1, is characterized in that one end that described adjustable lever (1) stretches into cylinder body (7) is provided with pilot hole (3), this pilot hole (3) with cross oil pocket (2) and communicate.
3. the cylinder cushion device of variable position according to claim 2, projection (6) is extended in the position that it is characterized in that the corresponding pilot hole of described piston (8) (3), what this projection (6) slided is arranged in pilot hole (3), and adjustable lever (1), projection (6), piston (8) and cylinder body (7) surround buffer cavity (5) jointly.
4. the cylinder cushion device of variable position according to claim 3, is characterized in that being provided with gap between described projection (6) and pilot hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320524707.3U CN203430907U (en) | 2013-08-26 | 2013-08-26 | Variable-position hydraulic cylinder buffer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320524707.3U CN203430907U (en) | 2013-08-26 | 2013-08-26 | Variable-position hydraulic cylinder buffer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430907U true CN203430907U (en) | 2014-02-12 |
Family
ID=50059950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320524707.3U Expired - Lifetime CN203430907U (en) | 2013-08-26 | 2013-08-26 | Variable-position hydraulic cylinder buffer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203430907U (en) |
-
2013
- 2013-08-26 CN CN201320524707.3U patent/CN203430907U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |
|
| CX01 | Expiry of patent term |