CN202673868U - Bidirectional buffer piston structure of hydraulic cylinder and bidirectional buffer hydraulic cylinder - Google Patents
Bidirectional buffer piston structure of hydraulic cylinder and bidirectional buffer hydraulic cylinder Download PDFInfo
- Publication number
- CN202673868U CN202673868U CN 201220258405 CN201220258405U CN202673868U CN 202673868 U CN202673868 U CN 202673868U CN 201220258405 CN201220258405 CN 201220258405 CN 201220258405 U CN201220258405 U CN 201220258405U CN 202673868 U CN202673868 U CN 202673868U
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- piston
- ejector rod
- push rod
- hydraulic cylinder
- hole
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Abstract
The utility model discloses a bidirectional buffer piston structure of a hydraulic cylinder. A piston is in threaded connection with an ejector rod seat along the axial direction; the ejector rod seat is provided with a first ejector rod mounting hole; a first ejector rod is arranged in the first ejector rod mounting hole; a second ejector rod hole is formed in one side of the piston opposite to the ejector rod seat; a second ejector rod is arranged in the second ejector rod hole; both the first ejector rod hole and the second ejector rod hole are communicated with an oil passage; a steel ball which is positioned between the first ejector rod and the second ejector rod and can move leftwards and rightwards is arranged in the piston; and the diameter of the steel ball is greater than the diameters of the first ejector rod hole and the second ejector rod hole. According to the bidirectional buffer piston structure, bidirectional buffer of an oil cylinder is realized, so that the harm brought by hydraulic impact is reduced; and a unilateral buffer or no-buffer structure can be constructed by simply refitting the bidirectional buffer piston structure, so that the structure is suitable for various working conditions.
Description
Technical field
The utility model relates to a kind of damping device, particularly relates to a kind of for cylinder cushion device.
Background technique
In the prior art, the hydraulic pressure cylinder cushion is realized by the mode of meter out, increase oil return resistance, is increased system power loss, acceleration system temperature rise thereby cause, and make complexity, the cost height.And the damping device of existing oil cylinder can not be realized bidirectional buffering, one-way buffer, exchange function without buffering.
So those skilled in the art are devoted to develop, and a kind of power loss is little, the adjustable cylinder cushion device of buffering direction.
The model utility content
Because the defects of prior art, technical problem to be solved in the utility model provides that a kind of power loss is little, the adjustable cylinder cushion device of buffering direction.
For achieving the above object, the utility model provides a kind of oil hydraulic cylinder bidirectional buffering piston structure, the piston tip-lever support that has been threaded vertically; Be provided with the first push rod mounting hole on the described tip-lever support; Be provided with the first push rod in described the first push rod mounting hole; Relatively described tip-lever support one side of described piston is provided with the second jogger hole; Be provided with the second push rod in described the second jogger hole; Described the first jogger hole and the second jogger hole all are communicated with oil duct; But be provided with the steel ball of the side-to-side movement between described the first push rod and the second push rod in the described piston; The diameter of described steel ball is greater than the diameter of described the first jogger hole and the second jogger hole.
Better, be provided with sealing gasket between described piston and the described tip-lever support.
Better, described piston is along circumferentially being provided with supporting ring and seal ring.
Better, for ease of the jack-up of steel ball, described the first push rod and the second push rod are the multidiameter shaft structure, and the diameter of close described steel ball one side is greater than the diameter away from described steel ball one side.
The utility model also provides a kind of bidirectional buffering oil hydraulic cylinder simultaneously, comprises cylinder barrel; Described cylinder barrel rear and front end is provided with front cover and rear end cover; The inside of described cylinder barrel is provided with piston rod and piston; Described piston adopts aforesaid piston structure; Described piston is installed on the described piston rod by locking nut.
Better, described locking nut is disposed radially the Cock screw that is connected with described piston rod.
The beneficial effects of the utility model are: the utility model has been realized the bidirectional buffering of oil cylinder, thereby reduced the harm that hydraulic shock brings, and the utility model has been carried out simple and easy repacking, can consist of one-way buffer, without buffer structure, thereby guarantee the applicable various working of this structure.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the partial enlarged drawing at I place among Fig. 1.
Fig. 3 is the partial enlarged drawing at II place among Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Such as Fig. 1, Fig. 2 and shown in Figure 3, a kind of bidirectional buffering oil hydraulic cylinder comprises cylinder barrel 3, and cylinder barrel 3 rear and front ends are provided with front cover 2 and rear end cover 5, and the inside of cylinder barrel 3 is provided with piston rod 1 and piston 4.Piston 4 is installed on the piston rod 1 by locking nut 6, and locking nut 6 is disposed radially the Cock screw 7 that is connected with piston rod 1.
Piston 4 tip-lever support 12 that has been threaded vertically is provided with sealing gasket 11 between piston 4 and the tip-lever support 12.Be provided with on the tip-lever support 12 in the first push rod mounting hole 16, the first push rod mounting holes 16 and be provided with the first push rod 14.
Piston 4 relative tip-lever support 12 1 sides are provided with in the second jogger hole 17, the second jogger holes 17 and are provided with the second push rod 8.
The first jogger hole 16 and the second jogger hole 17 all are communicated with oil duct 15.But be provided with the steel ball 13 of the side-to-side movement between the first push rod 14 and the second push rod 8 in the piston 4, the diameter of steel ball 13 is greater than the diameter of the first jogger hole 16 and the second jogger hole 17.
The first push rod 14 and the second push rod 8 are the multidiameter shaft structure, and the diameter of close steel ball 13 1 sides is greater than the diameter away from steel ball 13 1 sides.
Piston 4 is along circumferentially being provided with supporting ring 10 and seal ring 9.
During oil cylinder work, when piston 4 moved backward, high pressure oil was pushed steel ball 13 to rear side, thereby the first jogger hole 16 is blocked.Contact with rear end cover 5 when piston 4 arrives rear end cover 5, the first push rods 14, therefore, the first push rod 14 backs down steel ball 13, allows rod chamber and rodless cavity link up, and makes the rod chamber high pressure unloading, thereby realizes the cylinder buffer function.
If piston 4 travels forward, then high pressure oil is pushed steel ball 13 to front side, thereby the second jogger hole 17 is blocked.When piston 4 arrived front cover 2, the second push rod 8 contacted with front cover 2, and therefore the second push rod 8 backs down steel ball 13, allowed rodless cavity and rod chamber link up, and made the rodless cavity high pressure unloading, thereby realized the cylinder buffer function.
This bidirectional buffering structure is carried out simple and easy repacking, just can realize that bidirectional buffering repacks one-way buffer into and without the oil cylinder of pooling feature, specific practice is as follows:
1. after the first push rod being removed, realized that bidirectional buffering repacks rodless cavity into and buffering, rod chamber arranged without the oil cylinder of pooling feature;
2. after the second push rod being removed, realized that bidirectional buffering repacks rod chamber into and buffering, rodless cavity arranged without the oil cylinder of pooling feature;
3. after the two the first push rods being removed, realized that bidirectional buffering repacks oil cylinder into without the oil cylinder of pooling feature.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all in the art technician comply with design of the present utility model on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (6)
1. oil hydraulic cylinder bidirectional buffering piston structure is characterized in that: piston (4) tip-lever support (12) that has been threaded vertically; Be provided with the first push rod mounting hole (16) on the described tip-lever support (12); Be provided with the first push rod (14) in described the first push rod mounting hole (16); Relatively described tip-lever support (12) one sides of described piston (4) are provided with the second jogger hole (17); Be provided with the second push rod (8) in described the second jogger hole (17); Described the first jogger hole (16) and the second jogger hole (17) all are communicated with oil duct (15); Be provided with in the described piston (4) be positioned at described the first push rod (14) and the second push rod (8) but between the steel ball (13) of side-to-side movement; The diameter of described steel ball (13) is greater than the diameter of described the first jogger hole (16) and the second jogger hole (17).
2. oil hydraulic cylinder bidirectional buffering piston structure as claimed in claim 1 is characterized in that: be provided with sealing gasket (11) between described piston (4) and the described tip-lever support (12).
3. oil hydraulic cylinder bidirectional buffering piston structure as claimed in claim 1 or 2 is characterized in that: described piston (4) is along circumferentially being provided with supporting ring (10) and seal ring (9).
4. oil hydraulic cylinder bidirectional buffering piston structure as claimed in claim 1 or 2, it is characterized in that: described the first push rod (14) and the second push rod (8) are the multidiameter shaft structure, and the diameter of close described steel ball (13) one sides is greater than the diameter away from described steel ball (13) one sides.
5. a bidirectional buffering oil hydraulic cylinder comprises cylinder barrel (3); Described cylinder barrel (3) rear and front end is provided with front cover (2) and rear end cover (5); The inside of described cylinder barrel (3) is provided with piston rod (1) and piston (4); It is characterized in that: described piston (4) adopts such as the arbitrary described piston structure of claim 1 to 4; Described piston (4) is installed on the described piston rod (1) by locking nut (6).
6. bidirectional buffering oil hydraulic cylinder as claimed in claim 5, it is characterized in that: described locking nut (6) is disposed radially the Cock screw (7) that is connected with described piston rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220258405 CN202673868U (en) | 2012-06-04 | 2012-06-04 | Bidirectional buffer piston structure of hydraulic cylinder and bidirectional buffer hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220258405 CN202673868U (en) | 2012-06-04 | 2012-06-04 | Bidirectional buffer piston structure of hydraulic cylinder and bidirectional buffer hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673868U true CN202673868U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220258405 Expired - Lifetime CN202673868U (en) | 2012-06-04 | 2012-06-04 | Bidirectional buffer piston structure of hydraulic cylinder and bidirectional buffer hydraulic cylinder |
Country Status (1)
| Country | Link |
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| CN (1) | CN202673868U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148053A (en) * | 2013-03-04 | 2013-06-12 | 长沙理工大学 | Stroke control energy-saving buffering method of pumping oil cylinder used for concrete pump |
| CN108240370A (en) * | 2018-02-09 | 2018-07-03 | 武汉船用机械有限责任公司 | Damper piston |
| CN108844768A (en) * | 2018-08-20 | 2018-11-20 | 中机锻压江苏股份有限公司 | It is built-in can the deep-sea of drawing bidirectional buffer ram hammer |
| CN113339344A (en) * | 2020-08-05 | 2021-09-03 | 博世汽车转向系统（济南）有限公司 | Relief valve reaches hydraulic pressure power assisted steering ware including it |
-
2012
- 2012-06-04 CN CN 201220258405 patent/CN202673868U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148053A (en) * | 2013-03-04 | 2013-06-12 | 长沙理工大学 | Stroke control energy-saving buffering method of pumping oil cylinder used for concrete pump |
| CN108240370A (en) * | 2018-02-09 | 2018-07-03 | 武汉船用机械有限责任公司 | Damper piston |
| CN108844768A (en) * | 2018-08-20 | 2018-11-20 | 中机锻压江苏股份有限公司 | It is built-in can the deep-sea of drawing bidirectional buffer ram hammer |
| CN113339344A (en) * | 2020-08-05 | 2021-09-03 | 博世汽车转向系统（济南）有限公司 | Relief valve reaches hydraulic pressure power assisted steering ware including it |
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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: 20130116 |
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| CX01 | Expiry of patent term |