CN201377479Y - Hydraulic cylinder buffer - Google Patents
Hydraulic cylinder buffer Download PDFInfo
- Publication number
- CN201377479Y CN201377479Y CN200920064070U CN200920064070U CN201377479Y CN 201377479 Y CN201377479 Y CN 201377479Y CN 200920064070 U CN200920064070 U CN 200920064070U CN 200920064070 U CN200920064070 U CN 200920064070U CN 201377479 Y CN201377479 Y CN 201377479Y
- Authority
- CN
- China
- Prior art keywords
- buffer
- hydraulic cylinder
- cylinder
- cylinder bottom
- damping
- 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 - Fee Related
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- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to a hydraulic cylinder buffer, which is mainly used in a hydraulic cylinder of a large-tonnage broacher and can reduce the impact between a piston and a cylinder bottom during the fast retraction of the hydraulic cylinder. In the hydraulic cylinder buffer, the cylinder bottom equipped with the buffer is mounted in the cylinder barrel; the buffer consists of the cylinder bottom, a damping plug, a spring, a buffer plunger and a gland bush; an oil passage, a buffer cavity and a damping hole are formed on the cylinder bottom; the spring and the buffer plunger are mounted in the buffer cavity and fixed through the gland bush; and the damping plug is mounted in the damping hole at the cylinder bottom. The hydraulic cylinder buffer has the benefits that the impact between the piston and the cylinder bottom during the fast retraction of the hydraulic cylinder can be reduced, the noise of the machine can be reduced, the work performance of mechanical equipment can be improved, and the service life of the machine can be prolonged. At the same time, the quick start can be facilitated when the piston rod of the hydraulic cylinder extends out, and the efficiency of the machine can be improved.
Description
Technical field
The utility model relates to a kind of oil hydraulic cylinder technology, mainly is used in the large-tonnage broacher hydraulic cylinder impact of piston and cylinder bottom when it can reduce the oil hydraulic cylinder fast retractile.
Background technique
During the oil hydraulic cylinder operation, when the piston element of driving load is done quick to-and-fro motion with bigger quality, has very big momentum.When stroke during to terminal, piston tends to take place the mechanical collision with cylinder bottom, can produce very big impact and noise.The generation of this impact phenomenon not only can influence the service behaviour of machinery, and can cause the damage of oil hydraulic cylinder itself, has very big harmfulness.For piston and bump between the end cap and noise that the inertial force that reduces because of piston element causes, as the means that relax this impact, people often take socket cap annular space damping mechanism.Though but this structure is simple, shock-absorbing capacity, effect are quite poor.Another common structure is for the flow pattern buffer mechanism plug pattern of switching political loyalty, though this structure good buffer effect is unfavorable for the quick startup of return.
The model utility content
The purpose of this utility model is to provide a kind of oil hydraulic cylinder buffer, its good buffer effect, and be beneficial to the quick startup of return.
The purpose of this utility model is achieved through the following channels: a kind of oil hydraulic cylinder buffer, the cylinder bottom of being furnished with buffer is installed in the cylinder barrel, buffer is made up of cylinder bottom, damping plug, spring, buffer plunger, gland, it is to be provided with oil duct, buffer cavity, damping hole on cylinder bottom, spring, buffer plunger are installed in the buffer cavity, fix by gland; Damping plug is installed in the damping hole of cylinder bottom.
The beneficial effect of the utility model oil hydraulic cylinder buffer is: the impact of piston and cylinder bottom in the time of reducing the hydraulic cylinder piston rod fast retractile, the noise of reduction machine, the service behaviour of raising machinery, the working life of prolongation machine.Simultaneously, can start fast when helping hydraulic cylinder piston rod and stretching out, improve the efficient of machine.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1,. a kind of oil hydraulic cylinder buffer, the cylinder bottom of being furnished with buffer is installed in the cylinder barrel, buffer is made up of cylinder bottom 1, damping plug 2, spring 3, buffer plunger 4, gland 5, it is to be provided with oil duct, buffer cavity, damping hole on cylinder bottom 1, spring 3, buffer plunger 4 are installed in the buffer cavity, and be fixing by gland 5; Damping plug 2 is installed in the damping hole of cylinder bottom 1.The cylinder bottom that will assemble buffer is then packed in the cylinder barrel, with blind nut 6 it is pushed down.
In the work, when piston rod stretched out, the hydraulic oil major part entered the oil hydraulic cylinder rodless cavity through oil duct 8, and oil hydraulic cylinder can start fast, and sub-fraction hydraulic oil enters the buffer plunger chamber through damping plug 2, buffer plunger 4 was released, for buffering is prepared.During the piston rod fast retractile, hydraulic oil enters the oil hydraulic cylinder rod chamber, hydraulic oil in the rodless cavity is through oil duct 8 oil sump tanks, at this moment, the piston rod fast retractile is when piston 7 touches buffer plunger 4, in spring force and buffering plunger cavity under the effect of hydraulic oil damping force, this active force changes from small to big, and as pressure spring, and damping force can change by regulating damping plug.Piston 7 is done retarded motion, and speed is slower when making piston 7 near cylinder bottom 1, thereby reaches buffer function.
Claims (1)
1. oil hydraulic cylinder buffer, the cylinder bottom of being furnished with buffer is installed in the cylinder barrel, it is characterized in that: buffer is made up of cylinder bottom (1), damping plug (2), spring (3), buffer plunger (4), gland (5), it is to be provided with oil duct (8), buffer cavity, damping hole on cylinder bottom (1), spring (3), buffer plunger (4) are installed in the buffer cavity, and be fixing by gland (5); Damping plug (2) is installed in the damping hole of cylinder bottom (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920064070U CN201377479Y (en) | 2009-04-15 | 2009-04-15 | Hydraulic cylinder buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920064070U CN201377479Y (en) | 2009-04-15 | 2009-04-15 | Hydraulic cylinder buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201377479Y true CN201377479Y (en) | 2010-01-06 |
Family
ID=41517587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920064070U Expired - Fee Related CN201377479Y (en) | 2009-04-15 | 2009-04-15 | Hydraulic cylinder buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201377479Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216497A (en) * | 2013-04-25 | 2013-07-24 | 长沙理工大学 | Membrane air chamber buffering slow-release cavity arranged in hinged pin shaft |
| CN115764711A (en) * | 2022-11-16 | 2023-03-07 | 济南达材信息科技有限公司 | Auxiliary installation equipment for building electromechanical construction cable |
-
2009
- 2009-04-15 CN CN200920064070U patent/CN201377479Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216497A (en) * | 2013-04-25 | 2013-07-24 | 长沙理工大学 | Membrane air chamber buffering slow-release cavity arranged in hinged pin shaft |
| CN115764711A (en) * | 2022-11-16 | 2023-03-07 | 济南达材信息科技有限公司 | Auxiliary installation equipment for building electromechanical construction cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100106 Termination date: 20160415 |