CN206397849U - A kind of hydraulic cylinder with buffer structure - Google Patents
A kind of hydraulic cylinder with buffer structure Download PDFInfo
- Publication number
- CN206397849U CN206397849U CN201720013928.2U CN201720013928U CN206397849U CN 206397849 U CN206397849 U CN 206397849U CN 201720013928 U CN201720013928 U CN 201720013928U CN 206397849 U CN206397849 U CN 206397849U
- Authority
- CN
- China
- Prior art keywords
- cushion collar
- cylinder
- steel
- cylinder cap
- buffer structure
- 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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- Actuator (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a kind of hydraulic cylinder with buffer structure, it belongs to technical field of engineering machinery.It mainly includes being provided with piston rod in cylinder cap and cylinder barrel assembly, cylinder barrel assembly, and the afterbody of piston rod is sequentially provided with cushion collar and piston；The inner surface contacted on the cylinder cap with cushion collar is provided with brass layer；The cylinder cap is made using 45# steel；The cushion collar is made using 45# steel or low-carbon alloy steel.The utility model is simple in construction, and wearability is good, high pressure resistant, and greatly reduces production cost.The utility model is mainly used in excavator.
Description
Technical field
The utility model belongs to technical field of engineering machinery, specifically, more particularly to a kind of hydraulic pressure with buffer structure
Cylinder.
Background technology
Piston is past in the engineering machinery hydraulic cylinders such as the development requirement excavators with engineering machinery hydraulic technology and market
Multiple motion frequency and speed are improved constantly.To avoid producing strong shock and vibrating, prevent from being driven the improper damage of parts,
Guarantee system smooth working, and then improve service behaviour and the life-span of system, while ensureing the safety of operating personnel, it is necessary at it
Motion realizes buffering before terminating.Therefore, buffer structure is set to be even more important in hydraulic cylinder rod chamber.
At present, engineering machinery hydraulic cylinder rod chamber buffer structure frequently with cylinder cap (45# steel)+cushion collar (HBsC4) and
Two kinds of combining forms of cylinder cap (QT500-700)+cushion collar (heat treatment of 45# steel surfaces).Its structure function is：In certain pressure
Under the conditions of speed operation, buffering is played a part of when hydraulic cylinder reaches end of travel.But the shortcoming of said structure is respectively：
HBsC4 material costs are higher, and matched cylinder cap processing roughness requirements are high, corresponding in cylinder cap to coordinate surface hardness higher,
Need rolling and processing；And cylinder cap (QT500-700) manufacturing cost is too high, and percent defective is higher, it is impossible to meet the demand of people.
The content of the invention
The purpose of this utility model is to overcome drawbacks described above, and there is provided a kind of hydraulic cylinder with buffer structure, the letter of its structure
Single, wearability is good, high pressure resistant, and greatly reduces production cost.
Piston rod, piston are provided with the described hydraulic cylinder with buffer structure, including cylinder cap and cylinder barrel assembly, cylinder barrel assembly
The afterbody of bar is sequentially provided with cushion collar and piston；The inner surface contacted on the cylinder cap with cushion collar is provided with brass layer.
Further, the cylinder cap is made using 45# steel.
Further, the cushion collar is made using 45# steel or low-carbon alloy steel.
Piston rod, piston are provided with the described hydraulic cylinder with buffer structure, including cylinder cap and cylinder barrel assembly, cylinder barrel assembly
The afterbody of bar is sequentially provided with cushion collar and piston；The excircle of the cushion collar is provided with brass layer.
Further, the cylinder cap is made using 45# steel.
Further, the cushion collar is made using 45# steel.
Compared with prior art, the beneficial effects of the utility model are：
1st, the utility model is used as matrix by the cylinder cap of 45# steel, after the completion of roughing, in the buffer part of cylinder cap inner surface
Position built-up welding brass layer, is then finished to as finished product；Cushion collar is heat-treated work using 45# steel or low-carbon alloy steel through high-frequency quenching
Skill makes, it is to avoid cushion collar dilatancy is caused when compensator or trimmer pressure is very high, it is ensured that the cushion collar life-span；
2nd, the purpose of hydraulic cylinder buffering had both been can be completely achieved using combinations thereof form, can by a relatively large margin reduce and be produced into again
This, and brass layer is easier to reach corresponding roughness requirements than 45# steel matter, it is cost-effective, improve production efficiency；
3rd, using the cushion collar (45# steel) of cylinder cap (45# steel)+cylindrical built-up welding brass layer, it can equally keep away cushion collar
Exempt from compensator or trimmer pressure it is very high when dilatancy, substantially prolongs the service life of cushion collar, and 45# steel costs are low, be easy to processing.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of embodiment one；
Fig. 3 is the structural representation of embodiment two.
In figure, 1, piston rod；2nd, cylinder cap；3rd, cylinder barrel assembly；4th, piston；5th, cushion collar；6th, brass layer.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
Embodiment one：As depicted in figs. 1 and 2, the hydraulic cylinder with buffer structure, including cylinder cap 2 and cylinder barrel assembly 3, cylinder barrel
Piston rod 1 is provided with assembly 3, the afterbody of piston rod 1 is sequentially provided with cushion collar 5 and piston 4；Connect on the cylinder cap 2 with cushion collar 5
Tactile inner surface is provided with brass layer 6；The cylinder cap 2 is made using 45# steel；Cushion collar 5 uses 45# steel or low-carbon alloy
Steel is made.
The utility model is when making, and cylinder cap 2 uses 45# steel for matrix, after the completion of roughing, delays in the endoporus of cylinder cap 2
Position built-up welding brass layer 6 is rushed, then finishes cylinder cap 2 for finished product, cushion collar 5 is using 45# steel or low-carbon alloy steel through height
Frequency quenching heat treatment technique is made.
Embodiment two：As shown in figure 3, the hydraulic cylinder with buffer structure, including cylinder cap 2 and cylinder barrel assembly 3, cylinder barrel assembly 3
Interior to be provided with piston rod 1, the afterbody of piston rod 1 is sequentially provided with cushion collar 5 and piston 4；The excircle of the cushion collar 5 is provided with Huang
Brazing layer 6；The cylinder cap 2 is made using 45# steel；The cushion collar 5 is made using 45# steel.
The utility model is when making, and cushion collar 5 uses 45# steel for matrix, in its cylindrical built-up welding brass layer 6, then
Cushion collar 5 is processed as finished product；Cylinder cap 2 is made using 45# steel.
Claims (6)
1. piston rod is provided with a kind of hydraulic cylinder with buffer structure, including cylinder cap (2) and cylinder barrel assembly (3), cylinder barrel assembly (3)
(1), the afterbody of piston rod (1) is sequentially provided with cushion collar (5) and piston (4)；It is characterized in that：With buffering on the cylinder cap (2)
The inner surface for covering (5) contact is provided with brass layer (6).
2. the hydraulic cylinder according to claim 1 with buffer structure, it is characterised in that：The cylinder cap (2) uses 45# steels
Form.
3. the hydraulic cylinder according to claim 1 or claim 2 with buffer structure, it is characterised in that：The cushion collar (5) uses 45#
Steel or low-carbon alloy steel are made.
4. piston rod is provided with a kind of hydraulic cylinder with buffer structure, including cylinder cap (2) and cylinder barrel assembly (3), cylinder barrel assembly (3)
(1), the afterbody of piston rod (1) is sequentially provided with cushion collar (5) and piston (4)；It is characterized in that：The cushion collar (5) it is cylindrical
Week is provided with brass layer (6).
5. the hydraulic cylinder according to claim 4 with buffer structure, it is characterised in that：The cylinder cap (2) uses 45# steels
Form.
6. the hydraulic cylinder with buffer structure according to claim 4 or 5, it is characterised in that：The cushion collar (5) uses 45#
Steel is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720013928.2U CN206397849U (en) | 2017-01-06 | 2017-01-06 | A kind of hydraulic cylinder with buffer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720013928.2U CN206397849U (en) | 2017-01-06 | 2017-01-06 | A kind of hydraulic cylinder with buffer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206397849U true CN206397849U (en) | 2017-08-11 |
Family
ID=59513690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720013928.2U Expired - Fee Related CN206397849U (en) | 2017-01-06 | 2017-01-06 | A kind of hydraulic cylinder with buffer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206397849U (en) |
-
2017
- 2017-01-06 CN CN201720013928.2U patent/CN206397849U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170811 Termination date: 20180106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |