CN205578403U - Butter type hydraulic oil cylinder - Google Patents

Butter type hydraulic oil cylinder Download PDF

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Publication number
CN205578403U
CN205578403U CN201620330231.3U CN201620330231U CN205578403U CN 205578403 U CN205578403 U CN 205578403U CN 201620330231 U CN201620330231 U CN 201620330231U CN 205578403 U CN205578403 U CN 205578403U
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CN
China
Prior art keywords
cylinder
piston
piston rod
head
buffer
Prior art date
Application number
CN201620330231.3U
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Chinese (zh)
Inventor
文彬
Original Assignee
湖南协力液压有限公司
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Publication date
Application filed by 湖南协力液压有限公司 filed Critical 湖南协力液压有限公司
Priority to CN201620330231.3U priority Critical patent/CN205578403U/en
Application granted granted Critical
Publication of CN205578403U publication Critical patent/CN205578403U/en

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Abstract

The utility model discloses a butter type hydraulic oil cylinder, comprising a cylinder body, a piston rod, piston and cylinder bottom head, cylinder bottom head is being installed through welded fastening to the end of cylinder body, the piston suit is at the end of piston rod, and and piston rod fixed, be equipped with no pole chamber in the cylinder body inner sealing, front end in the no pole chamber is equipped with piston and piston rod, be equipped with the inlet port in the cylinder bottom head, be equipped with the flange between the front end of cylinder body and the piston rod, the end of flange is through bolt and mounting and receive buffer block fixed connection, receive to be equipped with on the buffer block semicircular groove, the front end of piston is equipped with the first buffer block with semicircular groove matched with, the end of piston is equipped with the second buffer block, cylinder bottom head is last be equipped with with second buffer block matched with rectangle dashpot, the end of piston rod is equipped with the plunger, cylinder bottom head is last be equipped with with plunger matched with plunger hole. The utility model discloses simple structure, cost are lower, reasonable in design, simple, the easy assembly of processing, processing low cost, are fit for large -scale production.

Description

A kind of buffer type hydraulic oil cylinder

Technical field

This utility model relates to technical field of hydraulic oil cylinder, is specially a kind of buffer type hydraulic oil cylinder.

Background technology

Hydraulic energy is changed into mechanical energy, does the hydraulic actuator of straight reciprocating motion (or oscillating motion) by hydraulic jack.Its simple in construction, reliable operation.When realizing moving back and forth with it, deceleration device can be removed from, and there is no drive gap, stable movement, therefore it is used widely in the hydraulic system of various machineries.The pressure reduction on hydraulic cylinder power output and piston effective area and both sides thereof is directly proportional;Hydraulic cylinder is substantially made up of with exhaust apparatus cylinder barrel and cylinder cap, piston and piston rod, sealing device, buffer unit.Buffer unit and exhaust apparatus are depending on concrete application scenario, and other devices are the most essential.

Hydraulic piston rod cylinder is the executive component that hydraulic system is conventional, and when hydraulic cylinder travel is at the end, piston can collide with front end housing and produce impact.In order to reduce impact, it will usually use and arrange buffer unit on front end housing.The generally buffer structure used by hydraulic jack is usually and arranges a plunger on the piston rod, but the quality of its buffering effect is determined by the gap length between plunger and plunger hole, this buffering hydraulic cylinder, owing to piston rod is made the biggest change by needs, requirement to precision is high, and cost expenses is relatively big, and once piston rod damages, it is difficult to find the piston rod matched therewith to replace, uses inconvenience.

Utility model content

The purpose of this utility model is to provide a kind of buffer type hydraulic oil cylinder, with the problem solving to propose in above-mentioned background technology.

nullFor achieving the above object,This utility model following technical scheme of offer: a kind of buffer type hydraulic oil cylinder,Including cylinder body、Piston rod、Piston and cylinder bottom head,The end of described cylinder body is installed with described cylinder bottom head by being welded and fixed,Described piston bush is contained in the end of piston rod,And fixing with piston rod be connected,Described cylinder interior is provided with rodless cavity in sealing,Front end in described rodless cavity is provided with described piston and piston rod,It is provided with fuel feed hole in described cylinder bottom head,It is provided with flange between front end and the piston rod of described cylinder body,The end of described flange is connected with being fixed by buffer stopper by bolt and fixture,Described it is provided with semi-circular recesses by buffer stopper,The front end of described piston is provided with the first buffer stopper matched with semi-circular recesses,The end of described piston is provided with the second buffer stopper,Described cylinder bottom head is provided with the rectangle dashpot matched with the second buffer stopper,The end of described piston rod is provided with plunger,Described cylinder bottom head is provided with the plunger hole matched with described plunger.

Preferably, being provided with spill port in described cylinder body, described spill port is positioned at the top of fixture.

Preferably, it is provided with rod chamber between described piston and flange.

Preferably, described second buffer stopper is provided with buffer gasket.

Preferably, described semi-circular recesses is provided with elastic buffer band.

Preferably, it is threadably secured between described piston and piston rod and is connected.

Preferably, described piston rod is one-body molded with plunger.

Compared with prior art, the beneficial effects of the utility model are: this utility model simple in construction, cost are relatively low, reasonable in design, processing is simple, easily assembling, low processing cost, applicable large-scale production;Use by the cooperation between buffer stopper and the first buffer stopper and rectangle dashpot and the second buffer stopper, it is possible to when making piston rod operate, automatically reduce buffer gap, there is preferable buffering effect, the impingement phenomenon of generation when being possible to prevent oil cylinder piston retraction cylinder bottom;The buffer gasket used and elastic buffer band can clash into pressure by environment further, improve service life;Use is arranged on flange by bolt and fixture by buffer stopper, convenient maintenance and replacing.

Accompanying drawing explanation

Fig. 1 is this utility model structural representation;

Fig. 2 is the enlarged drawing of A in Fig. 1.

In figure: 1 cylinder body, 2 piston rods, 3 pistons, 4 cylinder bottom heads, 5 rodless cavities, 6 fuel feed holes, 7 flanges, 8 bolts, 9 fixtures, 10 by buffer stopper, 11 semi-circular recesses, 12 first buffer stoppers, 13 second buffer stoppers, 14 rectangle dashpots, 15 plungers, 16 plunger holes, 17 spill ports, 18 rod chambers, 19 buffer gaskets, 20 elastic buffer bands.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.

nullRefer to Fig. 1-2,A kind of technical scheme of this utility model offer: a kind of buffer type hydraulic oil cylinder,Including cylinder body 1、Piston rod 2、Piston 3 and cylinder bottom head 4,The rear end of described cylinder body 1 fixedly mounts described cylinder bottom head 4,Described piston 3 is sleeved on the end of piston rod 2,And fixing with piston rod 2 be connected,Described cylinder body 1 inner sealing is provided with rodless cavity 5,Front end in described rodless cavity 5 is provided with described piston 3 and piston rod 2,It is provided with fuel feed hole 6 in described cylinder bottom head 4,It is provided with flange 7 between front end and the piston rod 2 of described cylinder body 1,The end of described flange 7 is connected with being fixed by buffer stopper 10 by bolt 8 and fixture 9,Described it is provided with semi-circular recesses 11 by buffer stopper 10,The front end of described piston 3 is provided with the first buffer stopper 12 matched with semi-circular recesses 11,The end of described piston 3 is provided with the second buffer stopper 13,Described cylinder bottom head 4 is provided with the rectangle dashpot 14 matched with the second buffer stopper 13,The end of described piston rod 2 is provided with plunger 15,Described cylinder bottom head 4 is provided with the plunger hole 16 matched with described plunger 15;Being provided with spill port 17 in described cylinder body 1, it is other that described spill port 17 is positioned at flange 7;It is provided with rod chamber 18 between described piston 3 and flange 7;Described second buffer stopper 13 is provided with buffer gasket 19;Described semi-circular recesses 11 is provided with elastic buffer band 20;It is threadably secured between described piston 3 and piston rod 2 and is connected;Described piston rod 2 is one-body molded with plunger 15.

Use by coordinating between buffer stopper 10 with the first buffer stopper 12 and rectangle dashpot 14 with the second buffer stopper 13, when piston rod 2 can be made to operate, automatically reduce buffer gap, there is preferable buffering effect, be possible to prevent oil cylinder piston 3 retract cylinder bottom time produce impingement phenomenon;The buffer gasket 19 used and elastic buffer band 20 can clash into pressure by environment further, improve service life;Use is arranged on flange 7 by bolt 8 and fixture 9 by buffer stopper 10, convenient maintenance and replacing.

Embodiment the most of the present utility model, for the ordinary skill in the art, being appreciated that in the case of without departing from principle of the present utility model and spirit and these embodiments can carry out multiple change, revise, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims (7)

  1. null1. a buffer type hydraulic oil cylinder,Including cylinder body (1)、Piston rod (2)、Piston (3) and cylinder bottom head (4),The end of described cylinder body (1) is installed with described cylinder bottom head (4) by being welded and fixed,Described piston (3) is sleeved on the end of piston rod (2),And fixing with piston rod (2) be connected,Described cylinder body (1) inner sealing is provided with rodless cavity (5),Front end in described rodless cavity (5) is provided with described piston (3) and piston rod (2),Fuel feed hole (6) it is provided with in described cylinder bottom head (4),It is characterized in that: between front end and the piston rod (2) of described cylinder body (1), be provided with flange (7),The end of described flange (7) is connected with being fixed by buffer stopper (10) by bolt (8) and fixture (9),Described it is provided with semi-circular recesses (11) by buffer stopper (10),The front end of described piston (3) is provided with the first buffer stopper (12) matched with semi-circular recesses (11),The end of described piston (3) is provided with the second buffer stopper (13),Described cylinder bottom head (4) is provided with the rectangle dashpot (14) matched with the second buffer stopper (13),The end of described piston rod (2) is provided with plunger (15),Described cylinder bottom head (4) is provided with the plunger hole (16) matched with described plunger (15).
  2. A kind of buffer type hydraulic oil cylinder the most according to claim 1, it is characterised in that: being provided with spill port (17) in described cylinder body (1), described spill port (17) is positioned at the top of fixture (9).
  3. A kind of buffer type hydraulic oil cylinder the most according to claim 1, it is characterised in that: it is provided with rod chamber (18) between described piston (3) and flange (7).
  4. A kind of buffer type hydraulic oil cylinder the most according to claim 1, it is characterised in that: described second buffer stopper (13) is provided with buffer gasket (19).
  5. A kind of buffer type hydraulic oil cylinder the most according to claim 1, it is characterised in that: described semi-circular recesses (11) is provided with elastic buffer band (20).
  6. A kind of buffer type hydraulic oil cylinder the most according to claim 1, it is characterised in that: it is threadably secured between described piston (3) with piston rod (2) and is connected.
  7. A kind of buffer type hydraulic oil cylinder the most according to claim 1, it is characterised in that: described piston rod (2) is one-body molded with plunger (15).
CN201620330231.3U 2016-04-19 2016-04-19 Butter type hydraulic oil cylinder CN205578403U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620330231.3U CN205578403U (en) 2016-04-19 2016-04-19 Butter type hydraulic oil cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620330231.3U CN205578403U (en) 2016-04-19 2016-04-19 Butter type hydraulic oil cylinder

Publications (1)

Publication Number Publication Date
CN205578403U true CN205578403U (en) 2016-09-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620330231.3U CN205578403U (en) 2016-04-19 2016-04-19 Butter type hydraulic oil cylinder

Country Status (1)

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CN (1) CN205578403U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106440936A (en) * 2016-11-10 2017-02-22 北京理工大学 Piston retreater of light-gas cannon
CN107882806A (en) * 2017-09-30 2018-04-06 重庆维庆液压机械有限公司 The method of work of anti-tamper hydraulic cylinder
CN108757626A (en) * 2018-05-30 2018-11-06 徐州永佳液压设备有限公司 Low voltage starting buffer type hydraulic oil cylinder
CN109983238A (en) * 2016-11-22 2019-07-05 Smc 株式会社 Supercharging device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106440936A (en) * 2016-11-10 2017-02-22 北京理工大学 Piston retreater of light-gas cannon
CN109983238A (en) * 2016-11-22 2019-07-05 Smc 株式会社 Supercharging device
CN107882806A (en) * 2017-09-30 2018-04-06 重庆维庆液压机械有限公司 The method of work of anti-tamper hydraulic cylinder
CN107882806B (en) * 2017-09-30 2019-07-30 重庆维庆液压机械有限公司 The working method of anti-tamper hydraulic cylinder
CN108757626A (en) * 2018-05-30 2018-11-06 徐州永佳液压设备有限公司 Low voltage starting buffer type hydraulic oil cylinder

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