CN212954084U - Buffer type hydraulic oil cylinder - Google Patents
Buffer type hydraulic oil cylinder Download PDFInfo
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- CN212954084U CN212954084U CN202021709700.5U CN202021709700U CN212954084U CN 212954084 U CN212954084 U CN 212954084U CN 202021709700 U CN202021709700 U CN 202021709700U CN 212954084 U CN212954084 U CN 212954084U
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Abstract
The utility model discloses a buffering formula hydraulic cylinder, including cylinder, piston and piston post, piston post one end and piston fixed connection, piston activity adaptation sets up inside the cylinder, the fixed bottom and the top stopper that is provided with in cylinder both ends, the piston post runs through the top stopper setting, and is provided with seal structure between top stopper and the piston post. The utility model is provided with the first spring, when the box body is lifted to a preset height, the box body can continue to move forward under the action of inertia, the piston rod drives the piston to move towards one side of the top plug, and the first spring deforms, so that the piston can be effectively buffered; under the action of gravity, when the packing box has the downward movement trend, can make the piston kick-back, hydraulic oil is extruded, and hydraulic oil promotes the movable block motion, extrudees the second spring to can play good cushioning effect, can avoid defeated oil pipe slippage or explode and split, thereby can improve the life of pneumatic cylinder.
Description
Technical Field
The utility model relates to a hydraulic cylinder technical field, in particular to buffering formula hydraulic cylinder.
Background
The oil cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and makes linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems.
The existing dump truck cargo box is lifted by adopting a traditional oil cylinder, the unbalance loading is overlarge, the cargo box can firstly continue to move upwards under the action of inertia in the process of lifting to a high position and stopping, then can move downwards under the action of gravity and finally stops at the top of the output end of the oil cylinder, and the pulling force and the pressure generated in the process are all fed back to the oil cylinder body, so that the service life of the oil cylinder is shortened.
Therefore, it is necessary to provide a cushioned hydraulic ram to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a buffering formula hydraulic cylinder to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a buffer type hydraulic oil cylinder comprises a cylinder barrel, a piston and a piston column, wherein one end of the piston column is fixedly connected with the piston, the piston is movably matched and arranged in the cylinder barrel, a bottom cover and a top plug are fixedly arranged at two ends of the cylinder barrel, the piston column penetrates through the top plug, a sealing structure is arranged between the top plug and the piston column, a first spring is fixedly arranged on one side of the top plug, one end of the first spring is fixedly connected with a buffer gasket, a plurality of through holes are formed in the side wall of the cylinder barrel, a connecting groove is formed in one side of each through hole, a current-limiting ring block is hermetically connected in the connecting groove, and a pressure reducing device is arranged on one side;
the pressure reducing device comprises a shell, the shell is in threaded sealing connection with the connecting groove, the inner portion of the shell is in threaded connection with a sealing plug, the middle of the sealing plug is provided with a groove, a second spring is fixedly arranged in the groove, one end of the second spring is fixedly connected with a movable block, and the groove and the flow limiting ring block are matched with the movable block.
Preferably, a sealing gasket is arranged between the sealing plug and the flow limiting ring block.
Preferably, the surface of the movable block is sleeved with a sealing ring.
Preferably, the pressure reducing device is annularly arranged on the surface of the cylinder barrel.
Preferably, the two ends of the cylinder barrel are both provided with oil nozzles.
The utility model discloses a technological effect and advantage: the structure is simple, the production is convenient, the first spring is arranged, when the box body is lifted to a preset height, the box body can continue to move forwards under the action of inertia, the box body pulls the piston rod to move, the piston at the tail end of the piston rod impacts the first spring, and the first spring deforms, so that the piston can be effectively buffered, the impact of the piston on the top plug is avoided, and the service life of the piston can be prolonged; under the action of gravity, when the packing box has the downward movement trend, can make the piston kick-back, hydraulic oil is extruded, and hydraulic oil promotes the movable block motion, extrudees the second spring to can play good cushioning effect, can avoid defeated oil pipe slippage or explode and split, thereby can improve the life of pneumatic cylinder.
Drawings
Fig. 1 is a schematic view of the overall front view section of the present invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.
In the figure: the piston type air compressor comprises a cylinder barrel 1, a piston 2, a piston post 3, a first spring 4, a buffer gasket 5, a connecting groove 6, a flow limiting ring block 7, an outer shell 8, a sealing plug 9, a groove 10, a second spring 11 and a movable block 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a buffering formula hydraulic cylinder as shown in fig. 1-2, including cylinder 1, piston 2 and piston post 3, piston post 3 one end and piston 2 fixed connection, piston 2 activity adaptation sets up in cylinder 1 inside, cylinder 1 both ends are fixed and are provided with bottom and top stopper, piston post 3 runs through the top stopper setting, and is provided with seal structure between top stopper and the piston post 3, top stopper one side is fixed and is provided with first spring 4, first spring 4 one end fixedly connected with buffering packing ring 5, a plurality of through-holes have been seted up to the cylinder 1 lateral wall, through-hole one side has linking groove 6, the inside sealing connection of linking groove 6 has current-limiting ring piece 7, the diameter of the inside cavity of linking groove 6 is greater than the cavity diameter at current-limiting ring piece 7 middle part, linking groove 6 one side is provided with the pressure relief device;
the pressure relief device includes shell body 8, shell body 8 and the 6 thread sealing connection in linking groove, 8 inside threaded connection of shell body have sealing plug 9, sealing plug 9 middle part begins fluted 10, the inside fixed second spring 11 that is provided with of recess 10, 11 one end fixedly connected with movable block 12 of second spring, recess 10 and current-limiting ring piece 7 all with movable block 12 looks adaptation.
Further, in the above technical solution, a sealing gasket is arranged between the sealing plug 9 and the flow-limiting ring block 7;
further, in the above technical solution, a sealing ring is sleeved on the surface of the movable block 12;
furthermore, in the technical scheme, the pressure reducing device is annularly arranged on the surface of the cylinder barrel 1, so that the appearance is attractive, and the interference on the installation of the oil cylinder can be avoided;
furthermore, in the above technical scheme, both ends of the cylinder barrel 1 are provided with oil nozzles.
This practical theory of operation:
by arranging the first spring 4, after the box body is lifted to a preset height, the box body can continue to move forwards under the action of inertia, at the moment, the box body pulls the piston 2 rod to move, the piston 2 at the tail end of the piston 2 rod impacts the first spring 4, and the first spring 4 deforms, so that the piston 2 can be effectively buffered, the impact of the piston 2 on a top plug is avoided, and the service life of the piston can be prolonged; under the action of gravity, when the packing box has the downward movement trend, can make piston 2 kick-back, hydraulic oil is extruded, and hydraulic oil promotes movable block 12 and moves, extrudees second spring 11 to can play good cushioning effect, can avoid defeated oil pipe slippage or explode and split, thereby can improve the life of pneumatic cylinder.
In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "disposed," "provided," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (5)
1. The utility model provides a buffering formula hydraulic cylinder, includes cylinder (1), piston (2) and piston post (3), piston post (3) one end and piston (2) fixed connection, piston (2) activity adaptation sets up inside cylinder (1), fixed bottom and the top stopper of being provided with in cylinder (1) both ends, piston post (3) run through the top stopper setting, and are provided with seal structure, its characterized in that between top stopper and piston post (3): a first spring (4) is fixedly arranged on one side of the top plug, one end of the first spring (4) is fixedly connected with a buffer gasket (5), a plurality of through holes are formed in the side wall of the cylinder barrel (1), a connecting groove (6) is formed in one side of each through hole, a current-limiting ring block (7) is hermetically connected in each connecting groove (6), and a pressure reducing device is arranged on one side of each connecting groove (6);
the pressure reducing device comprises an outer shell (8), the outer shell (8) is in threaded sealing connection with a connecting groove (6), the inner thread of the outer shell (8) is connected with a sealing plug (9), the middle of the sealing plug (9) is provided with a groove (10), a second spring (11) is fixedly arranged in the groove (10), one end of the second spring (11) is fixedly connected with a movable block (12), and the groove (10) and a current-limiting ring block (7) are matched with the movable block (12) in a matched mode.
2. The cushioned hydraulic ram of claim 1, wherein: and a sealing gasket is arranged between the sealing plug (9) and the flow limiting ring block (7).
3. The cushioned hydraulic ram of claim 1, wherein: the surface of the movable block (12) is sleeved with a sealing ring.
4. The cushioned hydraulic ram of claim 1, wherein: the pressure reducing device is annularly arranged on the surface of the cylinder barrel (1).
5. The cushioned hydraulic ram of claim 1, wherein: and oil nozzles are arranged at two ends of the cylinder barrel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021709700.5U CN212954084U (en) | 2020-08-17 | 2020-08-17 | Buffer type hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021709700.5U CN212954084U (en) | 2020-08-17 | 2020-08-17 | Buffer type hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212954084U true CN212954084U (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021709700.5U Active CN212954084U (en) | 2020-08-17 | 2020-08-17 | Buffer type hydraulic oil cylinder |
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| Country | Link |
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| CN (1) | CN212954084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113683004A (en) * | 2021-09-02 | 2021-11-23 | 海盐海顶汽车配件科技股份有限公司 | Vertical oil pressure slow-lowering jack |
-
2020
- 2020-08-17 CN CN202021709700.5U patent/CN212954084U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113683004A (en) * | 2021-09-02 | 2021-11-23 | 海盐海顶汽车配件科技股份有限公司 | Vertical oil pressure slow-lowering jack |
| CN113683004B (en) * | 2021-09-02 | 2023-03-10 | 海盐海顶汽车配件科技股份有限公司 | Vertical oil pressure slow-lowering jack |
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