CN202301726U - Hydraulic buffer - Google Patents
Hydraulic buffer Download PDFInfo
- Publication number
- CN202301726U CN202301726U CN2011204300810U CN201120430081U CN202301726U CN 202301726 U CN202301726 U CN 202301726U CN 2011204300810 U CN2011204300810 U CN 2011204300810U CN 201120430081 U CN201120430081 U CN 201120430081U CN 202301726 U CN202301726 U CN 202301726U
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- piston rod
- hydraulic buffer
- sleeved
- barrel
- 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 - Lifetime
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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a hydraulic buffer, which belongs to mechanical device accessories. For solving the problem that processing of a sliding barrel and other parts of an existing hydraulic buffer is complicated, an oil cylinder and an outer cylinder barrel are arranged on a base plate of the hydraulic buffer, several rows of stepped throttle holes are arranged on the wall of the oil cylinder, one end of a piston rod is sleeved in the oil cylinder, a press head is fixed at the other end of the piston rod, return springs are sleeved on the periphery of the piston rod and the periphery of the oil cylinder, and the sliding barrel is sleeved in the outer cylinder barrel and connected with a large press plate. The hydraulic buffer is good in buffering performance, stable in work, large in strength, safe, reliable, quick in recovery stroke, simple in outer barrel processing and easy to maintain, prolongs the service life, reduces the cost, improves the efficiency and is mainly used for easily damaged parts of steel rolling devices imported from overseas.
Description
Technical field
The utility model relates to a kind of machinery accessory, is specifically related to a kind of hydraulic bjuffer.
Background technique
In the New Times of economic globalization, increasing from automobile, the machinery of external import, the production domesticization of component production is an inexorable trend, and this helps reducing cost, and enhances competitiveness.Various vibration dampers in automobile, the machinery, buffer, buffer generally all are to utilize hydraulic damping and pressure spring or air cushion to be complementary and constitute.With the pressure spring buffering, rigidity is bigger as only, and shock-absorbing capacity is poor, and it is not steady to work; Only use hydraulic bjuffer, though shock-absorbing capacity is good, stable working, damping force is big, and the recovery stroke is slower.
Chinese patent ZL200520050478.1 discloses a kind of novel hydraulic buffer of the design people's research and development; This buffer adopts the mode of two-layer spring and three grades of bufferings of hydraulic pressure, good buffer effect, but find in the practice that little spring is fragile; Big spring top stress surface is little; Be prone to exist nonuniformity, and element precision such as slide cartridge require high, the processing more complicated.
The model utility content
In order to overcome the complicated deficiency of part processing such as existing hydraulic bjuffer slide cartridge, the utility model aims to provide a kind of hydraulic bjuffer, and this buffer buffers performance is good, stable working, intensity are big, safe and reliable, it is fast to restore stroke; And cancelled little spring; Increased block, made that slide cartridge processing is simpler, spring stress is also more even; Can prolong slide cartridge and spring working life, reduce cost and raise the efficiency and working stability.
To achieve these goals, the technological scheme that the utility model adopted is: said hydraulic bjuffer comprises oil cylinder and the outer cylinder that is fixedly connected on the base plate, and this oil cylinder places in the outer cylinder; Have many cribbings discharge orifice on the wall of said oil cylinder from top to bottom; One end of one piston rod is sleeved in the oil cylinder, and the other end is fixedly connected a pressure head, and said oil cylinder and piston rod periphery are set with Returnning spring; One end of one slide cartridge is sleeved in the said outer cylinder; The other end is fixedly connected a large plate, and its structural feature is to be provided with block between said Returnning spring and the slide cartridge.
By said structure, when weight contacted decline with the large plate of buffer, Returnning spring bore prefabricating load.The piston rod of buffer is also started working.When weight continuation decline, Returnning spring carries progressively and strengthens, and the throttle hole area on the buffer oil cylinder gradually reduces, and resistance to compression pression progressively increases.When weight dropped to last 20mm, the throttle orifice of the oil cylinder of buffer was closed entirely, only depended on the gap overflow between part, made weight steadily drop to preposition.When weight unloads.Returnning spring lifts block, large plate through piston rod simultaneously, resets together.
Buffer in the course of the work, spring has born the load of 30-40%, hydraulic bjuffer then bears the load of 60-70%.The utility model adopts pressure spring and hydraulic bjuffer to unite buffering, has both obtained the desired compression resistance, and shock-absorbing capacity is good, and stable working has satisfied again and restored the required performance of stroke, restores fast.The structural design of oil cylinder has the stepped shaft throttle orifice, and under piston action, the area of throttle orifice descends with arithmetic series, and damping force descends along with weight and progressively increases, and shows the stationarity of work.Simultaneously, the utility model adopts the quality structure steel, and machining accuracy is high, and intensity is big, and is safe and reliable.
Compared with prior art, the beneficial effect of the utility model is: the utility model shock-absorbing capacity is good, stable working, intensity are big, safe and reliable, it is fast to restore stroke, has cancelled little spring; Increase block, made that part processing such as slide cartridge are simpler, prolonged working life; Be easier to maintenance; Reduce cost, improved efficient and working stability, be mainly used in the rapid wear accessory of external import steel rolling equipment.
Below in conjunction with accompanying drawing and embodiment the utility model is done further to set forth.
Description of drawings
Fig. 1 is a kind of embodiment's of the utility model a structure sectional view.
In the drawings:
The 1-large plate; The 2-slide cartridge; The 3-pressure head; The 4-piston rod;
The 5-oil cylinder; The 6-outer cylinder; The 7-base plate; The 8-Returnning spring;
The 9-block; The 10-throttle orifice.
Embodiment
A kind of hydraulic bjuffer referring to Fig. 1, comprises the oil cylinder 5 and outer cylinder 6 that are fixedly connected on the base plate 7; This oil cylinder 5 places in the outer cylinder 6, and an end that has four cribbing discharge orifices, 10, one piston rods 4 on the wall of said oil cylinder 5 from top to bottom is sleeved in the oil cylinder 5; The other end is fixedly connected pressure head 3, and an end of said oil cylinder 5 and piston rod 4 periphery suits one Returnning spring 8, one slide cartridges 2 is sleeved in the said outer cylinder 6; The other end is fixedly connected a large plate 1; Be provided with block 9 between said Returnning spring 8 and the slide cartridge 2, an end of spring 8 contacts with base plate 7, and the other end contacts with block 9.
The content that the foregoing description is illustrated is to be understood that to these embodiments and only is used to be illustrated more clearly in the utility model; And be not used in the restriction the utility model scope; After having read the utility model, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the utility model.
Claims (2)
1. a hydraulic bjuffer comprises the oil cylinder (5) and the outer cylinder (6) that are fixedly connected on the base plate (7), and this oil cylinder (5) places in the outer cylinder (6); Have many cribbings discharge orifice (10) on the wall of said oil cylinder (5) from top to bottom; One end of one piston rod (4) is sleeved in the oil cylinder (5), and the other end is fixedly connected a pressure head (3), and said oil cylinder (5) and piston rod (4) periphery are set with Returnning spring (8); One end of one slide cartridge (2) is sleeved in the said outer cylinder (6); The other end is fixedly connected a large plate (1), it is characterized in that, is provided with block (9) between said Returnning spring (8) and the slide cartridge (2).
2. hydraulic bjuffer according to claim 1 is characterized in that, said throttle orifice (10) has four rows from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204300810U CN202301726U (en) | 2011-11-03 | 2011-11-03 | Hydraulic buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204300810U CN202301726U (en) | 2011-11-03 | 2011-11-03 | Hydraulic buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301726U true CN202301726U (en) | 2012-07-04 |
Family
ID=46370631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204300810U Expired - Lifetime CN202301726U (en) | 2011-11-03 | 2011-11-03 | Hydraulic buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301726U (en) |
-
2011
- 2011-11-03 CN CN2011204300810U patent/CN202301726U/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: 20120704 |
|
| CX01 | Expiry of patent term |