CN205117886U - Thrust is floated and is cushioned industrial furnace hydraulic cylinder - Google Patents
Thrust is floated and is cushioned industrial furnace hydraulic cylinder Download PDFInfo
- Publication number
- CN205117886U CN205117886U CN201520934240.9U CN201520934240U CN205117886U CN 205117886 U CN205117886 U CN 205117886U CN 201520934240 U CN201520934240 U CN 201520934240U CN 205117886 U CN205117886 U CN 205117886U
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Abstract
The utility model relates to a hydraulic cylinder technical field especially relates to a thrust is floated and is cushioned industrial furnace hydraulic cylinder, cylinder body including vertical installation, the bottom of cylinder body is the cylinder bottom, the cylinder body is internally provided with the piston, fixedly connected with piston rod on the piston, the cover is equipped with the cylinder cap on the piston rod, cylinder cap fixed mounting is in the upper end of cylinder body, the internal diameter of piston rod is less than the internal diameter of cylinder body, the piston is divided into in with the cylinder body has pole chamber and no pole chamber, there is the pole intracavity still to be provided with the unsteady buffering piston assembly who is used for restricting the piston upward movement, the buffering of floating piston assembly suit is on the piston rod, sealing connection between the buffering of floating piston assembly's the outer lane and the inner wall of cylinder body. The utility model discloses a thrust is floated and is cushioned industrial furnace hydraulic cylinder, there being the pole intracavity to increase a set of unsteady buffering piston assembly, when hydro -cylinder decline check, the speed of having slowed down no pole chamber overpressure, realization furnace body and molten steel soft landing.
Description
Technical field
The utility model relates to technical field of hydraulic oil cylinder, particularly relates to a kind of thrust floating buffer industrial furnace hydraulic jack.
Background technique
Hydraulic jack is the actuator in hydraulic system, hydraulic energy is converted to the energy conversion device of the mechanical energy of linear reciprocating motion, is generally made up of cylinder body, piston, piston rod and cylinder cap etc.Industrial furnace oil cylinder is all at right angle setting, is that rodless cavity is stressed all the time, and quality of loads is comparatively large, and therefore can rise rapidly in stopping impulsive load, excessive impact can damage cylinder seal, cylinder body, hydraulic system and whole mechanical structure.
Model utility content
The technical problems to be solved in the utility model is: can damage technical problem to cylinder seal, cylinder body, hydraulic system and whole mechanical structure to solve impact excessive in prior art, the utility model provides a kind of thrust floating buffer industrial furnace hydraulic jack.
The utility model solves the technological scheme that its technical problem adopts: a kind of thrust floating buffer industrial furnace hydraulic jack, comprise the cylinder body vertically installed, the bottom of described cylinder body is cylinder bottom, piston is provided with in cylinder body, piston is fixedly connected with piston rod, upper cover of piston rod is equipped with cylinder cap, cylinder cap is fixedly mounted on the upper end of cylinder body, the internal diameter of described piston rod is less than the internal diameter of cylinder body, piston will be divided into rod chamber and rodless cavity in cylinder body, the floating buffer piston assembly moved upward for limited piston is also provided with in described rod chamber, floating buffer piston assembly suit on the piston rod, be tightly connected between the outer ring of floating buffer piston assembly and the inwall of cylinder body.
In order to the structure of matching thrust oil cylinder, as preferably, described floating buffer piston assembly comprises suit lower floating piston on the piston rod, disc spring and upper floating piston, surface of contact between the inner ring of lower floating piston and upper floating piston and piston rod is also provided with seal ring, the lower end surface inner ring of lower floating piston offers limited step, described limited step is connected on piston, the outer ring of piston rod offers the chuck for limiting upper floating piston upwards, described disc spring is arranged between lower floating piston and upper floating piston, air flue is offered in piston rod, the suction port be connected with air flue is offered outside the upper end of piston rod, the lower end outside of piston rod offers towards the air outlet of disc spring, described air outlet is connected with air flue.
In order to ensure that floating buffer piston assembly normally works, as preferably, between described lower floating piston and upper floating piston, be filled with the gas identical with rod chamber working pressure.
Further, particularly, described cylinder bottom offers the filler opening be connected with rodless cavity, cylinder body offers the oil outlet be connected with rod chamber.
The beneficial effects of the utility model are, thrust floating buffer industrial furnace hydraulic jack of the present utility model, in rod chamber, increase by one group of floating buffer piston assembly, between floating piston, have disc spring, and between floating piston, be full of the gas identical with rod chamber working pressure.Suddenly stop when oil cylinder declines, the filler opening of rodless cavity is closed, the movement inertia of body of heater and molten steel can produce to rodless cavity the impact exceeding working pressure, rodless cavity oil pressure is raised rapidly, the safety valve of hydraulic system can not respond rapidly, now floating buffer piston can move up, slow down the speed of rodless cavity pressure increase, realize body of heater and molten steel soft landing, the oil cylinder operation total travel that is buffered in of this structure has effect, after stopping during oil cylinder is risen, the motion of body of heater molten steel falls after rise and also has cushioning effect, disc spring can when air cavity air pressure be not enough, still certain protective role is played.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the optimum embodiment of the utility model.
In figure: 1, cylinder body, 11, rod chamber, 12, rodless cavity, 13, oil outlet, 2, cylinder bottom, 21, filler opening, 3, piston, 4, piston rod, 41, chuck, 42, air flue, 43, suction port, 44, air outlet, 5, cylinder cap, 61, lower floating piston, 611, limited step, 62, disc spring, 63, upper floating piston.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, the optimum embodiment of the utility model, a kind of thrust floating buffer industrial furnace hydraulic jack, comprise the cylinder body 1 vertically installed, the bottom of cylinder body 1 is cylinder bottom 2, piston 3 is provided with in cylinder body 1, piston 3 is fixedly connected with piston rod 4, piston rod 4 is set with cylinder cap 5, cylinder cap 5 is fixedly mounted on the upper end of cylinder body 1, the internal diameter of piston rod 4 is less than the internal diameter of cylinder body 1, piston 3 will be divided into rod chamber 11 and rodless cavity 12 in cylinder body 1, the floating buffer piston assembly moved upward for limited piston 3 is also provided with in rod chamber 11, floating buffer piston assembly is sleeved on piston rod 4, be tightly connected between the outer ring of floating buffer piston assembly and the inwall of cylinder body 1.Cylinder bottom 2 offers the filler opening 21 be connected with rodless cavity 12, cylinder body 1 offers the oil outlet 13 be connected with rod chamber 11.
Floating buffer piston assembly comprises the lower floating piston 61 be sleeved on piston rod 4, disc spring 62 and upper floating piston 63, surface of contact between the inner ring of lower floating piston 61 and upper floating piston 63 and piston rod 4 is also provided with seal ring, the lower end surface inner ring of lower floating piston 61 offers limited step 611, limited step 611 is connected on piston 3, the outer ring of piston rod 4 offers the chuck 41 moved upward for limiting upper floating piston 63, disc spring 62 is arranged between lower floating piston 61 and upper floating piston 63, air flue 42 is offered in piston rod 4, the suction port 43 be connected with air flue 42 is offered outside the upper end of piston rod 4, the lower end outside of piston rod 4 offers towards the air outlet 44 of disc spring 62, air outlet 44 is connected with air flue 42.The nitrogen identical with rod chamber 11 working pressure is filled with between lower floating piston 61 and upper floating piston 63.
Floating buffer piston assembly can only move in restriction stroke, namely move between piston 3 to chuck 41, there is disc spring 62 between lower floating piston 61 and upper floating piston 63, and be full of the nitrogen identical with rod chamber working pressure between lower floating piston 61 with upper floating piston 63.When oil cylinder normally works, lower floating piston 61 is relatively away from upper floating piston 63, and the air cavity volume between lower floating piston 61 and upper floating piston 63 is maximum.Suddenly stop when oil cylinder declines, rodless cavity 12 filler opening 21 is closed, the movement inertia of body of heater and molten steel can produce to rodless cavity the impact exceeding working pressure, rodless cavity 12 oil pressure is raised rapidly, the safety valve of hydraulic system can not respond rapidly, now descend floating piston 61 and upper floating piston 63 can move up (actual is that piston rod 4 continues downwards to move), slow down the speed of rodless cavity 12 pressure increase, realize body of heater and molten steel soft landing.The oil cylinder operation total travel that is buffered in of this structure has effect; after stopping in rising for oil cylinder, the motion of body of heater molten steel falls after rise and also has cushioning effect, and disc spring 62 can when air cavity air pressure be not enough; the impact between two-piston can be avoided, still play certain protective role.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (4)
1. a thrust floating buffer industrial furnace hydraulic jack, it is characterized in that: comprise the cylinder body (1) vertically installed, the bottom of described cylinder body (1) is cylinder bottom (2), piston (3) is provided with in cylinder body (1), piston (3) is fixedly connected with piston rod (4), piston rod (4) is set with cylinder cap (5), cylinder cap (5) is fixedly mounted on the upper end of cylinder body (1), the internal diameter of described piston rod (4) is less than the internal diameter of cylinder body (1), piston (3) will be divided into rod chamber (11) and rodless cavity (12) in cylinder body (1), the floating buffer piston assembly moved upward for limited piston (3) is also provided with in described rod chamber (11), floating buffer piston assembly is sleeved on piston rod (4), be tightly connected between the inwall of the outer ring of floating buffer piston assembly and cylinder body (1).
2. thrust floating buffer industrial furnace hydraulic jack as claimed in claim 1, it is characterized in that: described floating buffer piston assembly comprises the lower floating piston (61) be sleeved on piston rod (4), disc spring (62) and upper floating piston (63), surface of contact between the inner ring of lower floating piston (61) and upper floating piston (63) and piston rod (4) is also provided with seal ring, the lower end surface inner ring of lower floating piston (61) offers limited step (611), described limited step (611) is connected on piston (3), the outer ring of piston rod (4) offers the chuck (41) moved upward for limiting upper floating piston (63), described disc spring (62) is arranged between lower floating piston (61) and upper floating piston (63), air flue (42) is offered in piston rod (4), the suction port (43) be connected with air flue (42) is offered outside the upper end of piston rod (4), the lower end outside of piston rod (4) offers towards the air outlet of disc spring (62) (44), described air outlet (44) is connected with air flue (42).
3. thrust floating buffer industrial furnace hydraulic jack as claimed in claim 2, is characterized in that: be filled with the gas identical with rod chamber (11) working pressure between described lower floating piston (61) and upper floating piston (63).
4. thrust floating buffer industrial furnace hydraulic jack as claimed in claim 1, it is characterized in that: described cylinder bottom (2) offers the filler opening (21) be connected with rodless cavity (12), cylinder body (1) offers the oil outlet (13) be connected with rod chamber (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520934240.9U CN205117886U (en) | 2015-11-20 | 2015-11-20 | Thrust is floated and is cushioned industrial furnace hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520934240.9U CN205117886U (en) | 2015-11-20 | 2015-11-20 | Thrust is floated and is cushioned industrial furnace hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205117886U true CN205117886U (en) | 2016-03-30 |
Family
ID=55573501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520934240.9U Withdrawn - After Issue CN205117886U (en) | 2015-11-20 | 2015-11-20 | Thrust is floated and is cushioned industrial furnace hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205117886U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240341A (en) * | 2015-11-20 | 2016-01-13 | 常州海宏液压设备有限公司 | Hydraulic oil cylinder of thrust floating buffer industrial furnace |
| CN110817714A (en) * | 2019-12-07 | 2020-02-21 | 荆门市佰思机械科技有限公司 | Hydraulic system of creeping formwork device |
-
2015
- 2015-11-20 CN CN201520934240.9U patent/CN205117886U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240341A (en) * | 2015-11-20 | 2016-01-13 | 常州海宏液压设备有限公司 | Hydraulic oil cylinder of thrust floating buffer industrial furnace |
| CN110817714A (en) * | 2019-12-07 | 2020-02-21 | 荆门市佰思机械科技有限公司 | Hydraulic system of creeping formwork device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160330 Effective date of abandoning: 20170606 |