CN209494785U - A kind of tandem type hydraulic cylinder - Google Patents
A kind of tandem type hydraulic cylinder Download PDFInfo
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- CN209494785U CN209494785U CN201822191440.6U CN201822191440U CN209494785U CN 209494785 U CN209494785 U CN 209494785U CN 201822191440 U CN201822191440 U CN 201822191440U CN 209494785 U CN209494785 U CN 209494785U
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Abstract
The utility model discloses a kind of tandem type hydraulic cylinder, including cylinder body firm banking, hydraulic cylinder is fastenedly connected on the firm banking, on hydraulic cylinder, one end of oil nozzle is equipped with and the oil circuit that is connected to inside hydraulic cylinder, one end in the hydraulic cylinder, close to firm banking is equipped with buffering plate, buffering plate is circular ring type structure, annular groove is equipped in buffering plate, the elastic component fixed block of array distribution is equipped in annular groove, the notch position of annular groove is equipped with limited block, and limited block is equipped with looping pit；Piston rod is equipped in the hydraulic cylinder.The utility model hydraulic cylinder increases the load capacity of oil cylinder by the series connection of oil circuit, improves the stability of oil cylinder；Buffer unit is arranged in the inside of cylinder body in the utility model hydraulic cylinder, improves the damping effect of oil cylinder, effectively protects cylinder body, improves the service life of cylinder body.
Description
Technical field
The utility model relates to a kind of tandem type hydraulic cylinder, specifically a kind of tandem type hydraulic cylinder.
Background technique
Hydraulic cylinder is the hydraulic actuator that hydraulic energy is changed into mechanical energy, does straight reciprocating motion.The letter of its structure
Single, reliable operation.Deceleration device when realizing reciprocating motion, can be removed from it, and do not have drive gap, movement is steady, because
This is used widely in the hydraulic system of various machinery.Hydraulic cylinder power output and piston effective area and its pressure difference on both sides
It is directly proportional；Hydraulic cylinder is substantially made of cylinder barrel and cylinder cap, piston and piston rod, sealing device, buffer unit and exhaust apparatus.
Depending on concrete application occasion, other devices are then essential for buffer unit and exhaust apparatus.
The series connection of hydraulic cylinder refers to that the oil inlet of latter way reversing valve is supplied by preceding oil return all the way, and each road valve is without individual oil return
Road is connected with oil return.
Utility model content
The purpose of this utility model is to provide a kind of tandem type hydraulic cylinder, oil of the hydraulic oil from close firm banking end
Mouth enters in the intracorporal the fourth region of hydraulic cylinder, while elastic component generates elastic force to first piston by buffer stopper and pushes, so that
Piston rod is mobile, while the hydraulic oil in third region is entered in second area by oil pipe in hydraulic cylinder, while squeezing second
It is mobile to make piston rod for piston, while cylinder body, during piston rod backhaul, buffer stopper is discharged in the hydraulic oil in first area
Piston rod is buffered；By the series connection of oil circuit, the load of oil cylinder is increased, improves the stability of oil cylinder；In cylinder body
Inside setting buffer unit, improves the damping effect of oil cylinder, effectively protects cylinder body, improve the service life of cylinder body.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of tandem type hydraulic cylinder, including cylinder body firm banking are fastenedly connected with hydraulic cylinder on the firm banking,
On hydraulic cylinder, one end of oil nozzle be equipped with the oil circuit that be connected to inside hydraulic cylinder, in the hydraulic cylinder, close firm banking
One end be equipped with buffering plate, buffering plate is circular ring type structure, and annular groove is equipped in buffering plate, is equipped with array in annular groove
The elastic component fixed block of distribution, the notch position of annular groove are equipped with limited block, and limited block is equipped with looping pit.
The elastic component fixed block is equipped with elastic component, and one end and the elastic component fixed block of elastic component are fastenedly connected, another
End is equipped with buffer stopper, and buffer stopper includes contact block, and the lower section of contact block is equipped with movable block, and it is fixed that the lower section of movable block is equipped with second
Block, buffer stopper are fastenedly connected by the second fixed block with elastic component, and contact block, movable block and the second fixed block are ring junction
Structure, movable block, which is located in looping pit, to be moved.
The hydraulic cylinder is equipped with symmetrical oilhole, and two oilholes are respectively communicated with two chambers separated by sealing block
Body, oil pipe is connected in oilhole, and oil pipe is connected to two cavitys separated by sealing block.
Piston rod is equipped in the hydraulic cylinder.
Further, the hydraulic cylinder both ends are equipped with oil nozzle.
Further, the middle position of the hydraulic cylinder is equipped with sealing block, and sealing block is equipped with connecting hole, in connecting hole
Equipped with the first seal groove, sealing ring is equipped in the first seal groove.
Further, the piston rod includes connecting rod, and connecting rod, which is located in connecting hole, to be moved, and the both ends of connecting rod are equipped with
First piston and second piston, first piston and second piston are located at by two separated cavitys of sealing block.
Further, the first piston is equipped with the second seal groove, is equipped with sealing ring, first piston in the second seal groove
Identical with the structure of second piston, difference is that one end and the connecting rod of second piston are fastenedly connected, and the other end is fastenedly connected
There is drive rod, one end that drive rod extends to the outside of hydraulic cylinder is equipped with connection unit.
Further, the cavity of hydraulic cylinder is divided into four regions by the first piston, second piston and sealing block, point
It Wei not first area, second area, third region, the fourth region.
The utility model has the beneficial effects that
1, the utility model hydraulic cylinder increases the load capacity of oil cylinder, improves oil cylinder by the series connection of oil circuit
Stability；
2, buffer unit is arranged in the inside of cylinder body in the utility model hydraulic cylinder, improves the damping effect of oil cylinder, has
Effect protects cylinder body, improves the service life of cylinder body.
Detailed description of the invention
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the utility model hydraulic cylinder cross-sectional view；
Fig. 2 is the utility model oil cylinder structure of hydraulic schematic diagram；
Fig. 3 is enlarged structure schematic diagram at A in the utility model Fig. 1；
Fig. 4 is the utility model buffer block structure schematic diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " aperture ", "upper", "lower", " thickness ", "top",
" in ", " length ", "inner", indicating positions or the positional relationship such as " surrounding ", be merely for convenience of description the utility model and simplification
Description, rather than the component or element of indication or suggestion meaning must have a particular orientation, and are constructed and grasped with specific orientation
Make, therefore should not be understood as limiting the present invention.
A kind of tandem type hydraulic cylinder, including cylinder body firm banking 1, as shown in Figure 1 and Figure 2, firm banking 1, which tightens, to be connected
It is connected to hydraulic cylinder 2,2 both ends of hydraulic cylinder are equipped with oil nozzle 21.
On hydraulic cylinder 2, one end of oil nozzle 21 be equipped with the oil circuit 22 that is connected to inside hydraulic cylinder 2, in hydraulic cylinder 2,
It is equipped with buffering plate 23 close to one end of firm banking 1, as shown in figure 3, buffering plate 23 is circular ring type structure, buffering plate 23
It is interior to be equipped with annular groove 231, the elastic component fixed block 232 of array distribution, the notch position of annular groove 231 are equipped in annular groove 231
Equipped with limited block 233, limited block 233 is equipped with looping pit 234.
Elastic component fixed block 232 is equipped with elastic component 24, and one end of elastic component 24 and the fastening of elastic component fixed block 232 connect
It connects, the other end is equipped with buffer stopper 5, and as shown in Figure 3, Figure 4, buffer stopper 5 includes contact block 51, and the lower section of contact block 51 is equipped with movement
Block 52, the lower section of movable block 52 are equipped with the second fixed block 53, and buffer stopper 5 is connected by the second fixed block 53 and the fastening of elastic component 24
It connects, contact block 51, movable block 52 and the second fixed block 53 are ring structure, and movable block 52, which is located in looping pit 234, to be moved.
The middle position of hydraulic cylinder 2 is equipped with sealing block 25, and sealing block 25 is equipped with connecting hole 251, sets in connecting hole 251
There is the first seal groove 252, is equipped with sealing ring in the first seal groove 252.
Hydraulic cylinder 2 is divided into two cavitys by sealing block 25, and hydraulic cylinder 2 is equipped with symmetrical oilhole 26, and two
Oilhole 26 is respectively communicated with two cavitys separated by sealing block 25, and oil pipe 4 is connected in oilhole 26, and oil pipe 4 is connected to by sealing block
25 two separated cavitys.
Piston rod 3 is equipped in hydraulic cylinder 2, piston rod 3 includes connecting rod 31, and connecting rod 31, which is located in connecting hole 251, moves
Dynamic, the both ends of connecting rod 31 are equipped with first piston 32 and second piston 33, first piston 32 and second piston 33 be located at by
In two separated cavitys of sealing block 25.
First piston 32 is equipped with the second seal groove 321, is equipped with sealing ring, 32 He of first piston in the second seal groove 321
The structure of second piston 33 is identical, and difference is that one end and the connecting rod 31 of second piston 33 are fastenedly connected, other end fastening
It is connected with drive rod 34, one end that drive rod 34 extends to the outside of hydraulic cylinder 2 is equipped with connection unit 341.
The cavity of hydraulic cylinder 2 is divided into four regions by first piston 32, second piston 33 and sealing block 25, and respectively
One region 2-1, second area 2-2, third region 2-3, the fourth region 2-4.
In use, hydraulic oil enters in the fourth region 2-4 in hydraulic cylinder 2 from close to the oil nozzle 21 at 1 end of firm banking,
Elastic component 24 generates elastic force to first piston 32 by buffer stopper 5 and pushes simultaneously, so that piston rod 3 is mobile, while hydraulic cylinder 2
The hydraulic oil of interior third region 2-3 is entered in second area 2-2 by oil pipe 4, while squeezing second piston 33, makes piston rod 3
It is mobile, while cylinder body is discharged in the hydraulic oil in the 2-1 of first area, during 3 backhaul of piston rod, buffer stopper 5 is to piston rod 3
It is buffered.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.
Claims (6)
1. a kind of tandem type hydraulic cylinder, including cylinder body firm banking (1), it is fastenedly connected on the firm banking (1) hydraulic
Cylinder body (2), on hydraulic cylinder (2), one end of oil nozzle (21) be equipped with and hydraulic cylinder (2) inside the oil circuit (22) that be connected to, spy
Sign is that one end in the hydraulic cylinder (2), close to firm banking (1) is equipped with buffering plate (23), and buffering plate (23) is
Circular ring type structure, buffering plate (23) is interior to be equipped with annular groove (231), and the elastic component in annular groove (231) equipped with array distribution is solid
Determine block (232), the notch position of annular groove (231) is equipped with limited block (233), and limited block (233) is equipped with looping pit (234)；
The elastic component fixed block (232) is equipped with elastic component (24), one end and elastic component fixed block (232) of elastic component (24)
It is fastenedly connected, the other end is equipped with buffer stopper (5), and buffer stopper (5) includes contact block (51), and the lower section of contact block (51) is equipped with movement
The lower section of block (52), movable block (52) is equipped with the second fixed block (53), and buffer stopper (5) passes through the second fixed block (53) and elastic component
(24) it is fastenedly connected, contact block (51), movable block (52) and the second fixed block (53) are ring structure, and movable block (52) is located at
Looping pit moves in (234)；
The hydraulic cylinder (2) is equipped with symmetrical oilhole (26), and two oilholes (26) are respectively communicated with by sealing block (25)
Two separated cavitys, oilhole (26) is interior to be connected with oil pipe (4), and oil pipe (4) is connected to two cavitys separated by sealing block (25)；
Piston rod (3) are equipped in the hydraulic cylinder (2).
2. a kind of tandem type hydraulic cylinder according to claim 1, which is characterized in that hydraulic cylinder (2) both ends are equal
Equipped with oil nozzle (21).
3. a kind of tandem type hydraulic cylinder according to claim 1, which is characterized in that the centre of the hydraulic cylinder (2)
Position is equipped with sealing block (25), and sealing block (25) is equipped with connecting hole (251), and the first seal groove is equipped in connecting hole (251)
(252), sealing ring is equipped in the first seal groove (252).
4. a kind of tandem type hydraulic cylinder according to claim 1, which is characterized in that the piston rod (3) includes connection
Bar (31), connecting rod (31), which is located in connecting hole (251), to be moved, and the both ends of connecting rod (31) are equipped with first piston (32) and second
Piston (33), first piston (32) and second piston (33) are located at by two separated cavitys of sealing block (25).
5. a kind of tandem type hydraulic cylinder according to claim 4, which is characterized in that the first piston (32) is equipped with
Second seal groove (321), the second seal groove (321) is interior to be equipped with sealing ring, the structure of first piston (32) and second piston (33)
Identical, difference is that one end and the connecting rod (31) of second piston (33) are fastenedly connected, and the other end is fastenedly connected with drive rod
(34), one end that drive rod (34) extends to the outside of hydraulic cylinder (2) is equipped with connection unit (341).
6. a kind of tandem type hydraulic cylinder according to claim 4, which is characterized in that the first piston (32), second
The cavity of hydraulic cylinder (2) is divided into four regions, respectively first area (2-1), second by piston (33) and sealing block (25)
Region (2-2), third region (2-3), the fourth region (2-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822191440.6U CN209494785U (en) | 2018-12-25 | 2018-12-25 | A kind of tandem type hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822191440.6U CN209494785U (en) | 2018-12-25 | 2018-12-25 | A kind of tandem type hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209494785U true CN209494785U (en) | 2019-10-15 |
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ID=68153765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822191440.6U Active CN209494785U (en) | 2018-12-25 | 2018-12-25 | A kind of tandem type hydraulic cylinder |
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| Country | Link |
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| CN (1) | CN209494785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963513A (en) * | 2020-09-01 | 2020-11-20 | 王佩姿 | Hydraulic cylinder gland opening and closing device with reinforcing structure for automobile |
-
2018
- 2018-12-25 CN CN201822191440.6U patent/CN209494785U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963513A (en) * | 2020-09-01 | 2020-11-20 | 王佩姿 | Hydraulic cylinder gland opening and closing device with reinforcing structure for automobile |
| CN111963513B (en) * | 2020-09-01 | 2022-06-14 | 常德市佳鸿机械有限责任公司 | Hydraulic cylinder gland opening and closing device with reinforcing structure for automobile |
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