CN209398662U - Cushion cylinder - Google Patents
Cushion cylinder Download PDFInfo
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- CN209398662U CN209398662U CN201822066569.4U CN201822066569U CN209398662U CN 209398662 U CN209398662 U CN 209398662U CN 201822066569 U CN201822066569 U CN 201822066569U CN 209398662 U CN209398662 U CN 209398662U
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Abstract
The utility model provides a kind of cushion cylinder, is related to technical field of hydraulic oil cylinder, comprising: oil cylinder main body, piston rod, left end cap and right end cap, further includes: piston main body, oil storage unit, the first valve portion, the second valve portion；By in the reciprocating motion of piston rod, when piston main body and left end cap contact, first valve portion is contacted with left end cap, first valve portion is opened, liquid oil in second oil pocket is flowed into the first oil pocket by oil storage unit plays buffer function, when piston main body and right end cap contact, second valve portion is contacted with right end cap, second valve portion is opened, liquid oil in first oil pocket enters in the second oil pocket by oil storage unit plays buffer function, alleviating traditional bumper post and cushion collar existing in the prior art has particular/special requirement to cylinder structure, the tolerance of bumper post and cushion collar is difficult to control, slightly not paying attention to regard to the technical issues of buffer loss effect, it is simple to realize in-oil cylinder buffer structure, the apparent technical effect of buffering effect.
Description
Technical field
The utility model relates to technical field of hydraulic oil cylinder, more particularly, to a kind of cushion cylinder.
Background technique
In the engineering machinery such as truck crane, high-altitude operation vehicle, many oil cylinders require band buffer structure, especially in cylinder bottom
Side, oil cylinder is in backhaul, because of bringing onto load, quickly, small cavity pressure is very high for opening speed, no matter at this time whether there is or not bufferings to need by client
It asks, in oil cylinder big chamber side, design buffer structure is all fair and sensible, this is both the protection to oil cylinder itself, and to client's complete machine
Be responsible for.
Common form cylinder bottom side buffering be nothing but by bumper post and cushion collar, both form performances be proved to be also
It is sufficiently stable reliable.
But traditional bumper post and cushion collar has particular/special requirement to cylinder structure, such as cylinder bottom side need to have sufficient space
Arrange that cushion space to accommodate bumper post and cushion collar, cannot achieve, in addition, bumper post and buffering if cylinder bottom finite thickness
The tolerance of set is difficult to control, slightly not paying attention to regard to buffer loss effect.
The information disclosed in the background technology section is intended only to deepen the understanding to the utility model general background technology,
And it is not construed as recognizing or implying in any form that the information constitutes the prior art known in those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of cushion cylinders, to alleviate existing in the prior art traditional delay
Rushing column and cushion collar has a particular/special requirement to cylinder structure, and the tolerance of bumper post and cushion collar is difficult to control, and slightly loses without paying attention to
The technical issues of buffering effect.
In order to solve the above technical problems, technical solution provided by the utility model is:
Cushion cylinder provided by the utility model, comprising: oil cylinder main body, piston rod, left end cap and right end cap, further includes:
Piston main body, oil storage unit, the first valve portion, the second valve portion；
Piston rod is extend into oil cylinder main body, and piston rod is moved back and forth along oil cylinder main body, and piston main body is stretched with piston rod
Enter to the connection of one end of oil cylinder main body, forms the first oil pocket between left end cap, piston main body and the end face of piston rod, right end cap,
The second oil pocket is formed between oil cylinder main body, piston main body and the side wall of piston rod；
The first valve mounting apertures and the second valve mounting apertures, the first valve portion and the second valve portion are offered on piston main body
Be respectively arranged in the first valve mounting apertures and the second valve mounting apertures, and the first valve portion and the second valve portion with piston master
Body connects, and is provided with oil storage unit in piston main body, and oil storage unit is connected to the first valve mounting apertures and the second valve mounting apertures respectively,
First valve portion is for being flowed into the liquid oil in the second oil pocket in the first oil pocket by oil storage unit, and the second valve portion is for making the
Liquid oil in one oil pocket is flowed into the second oil pocket by oil storage unit.
Further, the first valve portion includes the first valve rod and the first check valve；
First valve rod and the first check valve are all set in the first valve mounting apertures, the first valve rod and the cooperation of the first check valve
Connection, the first valve rod stretch out the first valve mounting apertures and towards left end cap far from one end of the first check valve, and the first check valve is remote
Towards right end cap, the first valve rod can be protruded into the first check valve for one end from the first valve rod, and the first check valve is opened, with
It is flowed into the liquid oil in the second oil pocket in the first oil pocket by oil storage unit.
Further, the second valve portion includes the second valve rod and second one-way valve；
Second valve rod and second one-way valve are all set in the second valve mounting apertures, the second valve rod and second one-way valve cooperation
Connection, the second valve rod stretch out the second valve mounting apertures and towards right end cap far from one end of second one-way valve, and second one-way valve is remote
Towards left end cap, the second valve rod can protrude into second one-way valve, second one-way valve is opened for one end from the second valve rod, with
It is flowed into the liquid oil in the first oil pocket in the second oil pocket by oil storage unit.
Further, cushion cylinder further includes partition；
Partition is set as two, and two partitions are set around on the outer surface of piston main body, and two partitions and piston master
It encloses between body equipped with oil storage unit.
Further, two partitions are fixedly connected with piston main body, and welding transition seam is provided between two partitions.
Further, piston main body is provided with the first oilhole close to the side of left end cap, and the first oilhole is connected to oil storage unit,
Liquid oil in oil storage unit is entered in the first oil pocket by the first oilhole；
Piston main body is provided with the second oilhole close to the side of right end cap, and the second oilhole is connected to oil storage unit, in oil storage unit
Liquid oil entered in the second oil pocket by the second oilhole.
Further, piston main body is provided with step surface close to the side of left end cap.
Further, piston main body is provided with boss close to the side of right end cap.
Further, the diameter of the first valve rod is gradually increased from both ends to centre.
Further, the first oil inlet and the second oil inlet are provided on left end cap；
First oil inlet and the connection of the first oil pocket, liquid oil are entered in the first oil pocket by the first oil inlet；
Second oil inlet and the connection of the second oil pocket, liquid oil are entered in the second oil pocket by the second oil inlet.
In conjunction with above technical scheme, the beneficial effect that the utility model reaches is:
Cushion cylinder provided by the utility model, comprising: oil cylinder main body, piston rod, left end cap and right end cap, further includes:
Piston main body, oil storage unit, the first valve portion, the second valve portion；Piston rod is extend into oil cylinder main body, and piston rod is along oil cylinder master
Body moves back and forth, and piston main body connect with one end that piston rod extend into oil cylinder main body, left end cap, piston main body and piston rod
The first oil pocket is formed between end face, forms the second oil pocket between right end cap, oil cylinder main body, piston main body and the side wall of piston rod；
The first valve mounting apertures and the second valve mounting apertures are offered on piston main body, the first valve portion and the second valve portion are respectively set
In in the first valve mounting apertures and the second valve mounting apertures, and the first valve portion and the second valve portion are connect with piston main body,
Oil storage unit is provided in piston main body, oil storage unit is connected to the first valve mounting apertures and the second valve mounting apertures respectively, the first valve
Door portion is for being flowed into the liquid oil in the second oil pocket in the first oil pocket by oil storage unit, and the second valve portion is for making the first oil pocket
Interior liquid oil is flowed into the second oil pocket by oil storage unit.
By the way that the first valve portion and the second valve portion are arranged in piston main body, in the reciprocating motion of piston rod, work as work
When plug main body and left end cap contact, the first valve portion is contacted with left end cap, and the first valve portion is opened, the liquid oil warp in the second oil pocket
It crosses oil storage unit to be flowed into the first oil pocket, the liquid oil in the first oil pocket plays buffer function, when piston main body is contacted with right end cap
When, the second valve portion is contacted with right end cap, and the second valve portion is opened, and the liquid oil in the first oil pocket enters second by oil storage unit
In oil pocket, the liquid oil in the second oil pocket plays buffer function, alleviates traditional bumper post existing in the prior art and buffering
Set has a particular/special requirement to cylinder structure, and the tolerance of bumper post and cushion collar is difficult to control, slightly not paying attention to regard to buffer loss effect
Technical problem, it is simple to realize in-oil cylinder buffer structure, the apparent technical effect of buffering effect.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages are illustrating
Structure specifically noted by book, claims and attached drawing is achieved and obtained.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the overall structure cross-sectional view of cushion cylinder provided by the embodiment of the utility model；
Fig. 2 is the structure sectional view of the piston main body in cushion cylinder provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of the partition in cushion cylinder provided by the embodiment of the utility model；
Fig. 4 is the structural schematic diagram that cushion cylinder provided by the embodiment of the utility model is just being shown in left end cap；
Fig. 5 is the structural schematic diagram that cushion cylinder provided by the embodiment of the utility model is just being shown in piston main body.
Icon: 100- oil cylinder main body；110- piston rod；120- left end cap；The first oil inlet of 121-；The second oil inlet of 122-
Mouthful；130- right end cap；200- piston main body；The first valve mounting apertures of 210-；The second valve mounting apertures of 220-；The oil storage unit 230-；
The first oil pocket of 240-；The second oil pocket of 250-；The first oilhole of 260-；The second oilhole of 270-；280- step surface；290- boss；300-
First valve portion；The first valve rod of 310-；The first check valve of 320-；The second valve portion of 400-；The second valve rod of 410-；420- second is single
To valve；500- partition；510- welding transition seam.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that such as occur term " center ", "upper", "lower", " left side ",
" right side ", "vertical", "horizontal", "inner", "outside" etc., indicated by orientation or positional relationship be orientation based on the figure or
Positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, such as there is term " first ", " second ", " third " are used for description purposes only, be not understood to indicate or imply opposite
Importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, such as there is term
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Fig. 1 is the overall structure cross-sectional view of cushion cylinder provided in this embodiment；Fig. 2 is buffering oil provided in this embodiment
The structure sectional view of piston main body in cylinder；Fig. 3 is the structural schematic diagram of the partition in cushion cylinder provided in this embodiment；Figure
4 are just being shown in the structural schematic diagram of left end cap for cushion cylinder provided in this embodiment；Fig. 5 is cushion cylinder provided in this embodiment
Just it is being shown in the structural schematic diagram of piston main body.
As shown in Figs. 1-5, cushion cylinder provided in this embodiment, comprising: oil cylinder main body 100, piston rod 110, left end cap
120 and right end cap 130, further includes: piston main body 200, oil storage unit 230, the first valve portion 300, the second valve portion 400；Piston
Bar 110 is extend into oil cylinder main body 100, and piston rod 110 is moved back and forth along oil cylinder main body 100, piston main body 200 and piston rod
110 extend into one end connection of oil cylinder main body 100, are formed between left end cap 120, piston main body 200 and the end face of piston rod 110
First oil pocket 240 forms the second oil between right end cap 130, oil cylinder main body 100, piston main body 200 and the side wall of piston rod 110
Chamber 250；The first valve mounting apertures 210 and the second valve mounting apertures 220,300 He of the first valve portion are offered on piston main body 200
Second valve portion 400 is respectively arranged in the first valve mounting apertures 210 and the second valve mounting apertures 220, and the first valve portion 300
It is connect with piston main body 200 with the second valve portion 400, oil storage unit 230 is provided in piston main body 200, oil storage unit 230 is distinguished
It is connected to the first valve mounting apertures 210 and the second valve mounting apertures 220, the first valve portion 300 is for making in the second oil pocket 250
Liquid oil is flowed into the first oil pocket 240 by oil storage unit 230, and the second valve portion 400 is for passing through the liquid oil in the first oil pocket 240
Oil storage unit 230 is crossed to be flowed into the second oil pocket 250.
Specifically, opening up 210 He of the first valve mounting apertures on piston main body 200 in the manufacturing process of piston main body 200
First valve portion 300 and the second valve portion 400 are respectively arranged in 210 He of the first valve mounting apertures by the second valve mounting apertures 220
In second valve mounting apertures 220, piston rod 110 moves back and forth in oil cylinder main body 100, and piston rod 110 and piston main body 200 are solid
Fixed connection, piston main body 200 move together with piston rod 110.
When towards left end cap 120, mobile and piston main body 200 and left end cap 120 contact piston main body 200, the first valve
Portion 300 is contacted with left end cap 120, and the first valve portion 300 is opened by the power from left end cap 120, the first valve portion 300, the
Liquid oil in two oil pockets 250 is flowed into the first oil pocket 240 by oil storage unit 230, and the liquid oil in the first oil pocket 240 plays buffering
Effect；When piston main body 200 is mobile towards right end cap 130, but the second valve portion 400 is not contacted with right end cap 130, the first valve
Pressure of the door portion 300 by the liquid oil in the first oil pocket 240, the first valve are opened, and the liquid oil in the first oil pocket 240 enters storage
In oily portion 230, the second valve portion 400 is closed；When piston main body 200 is mobile towards right end cap 130, and the second valve portion 400 with
When right end cap 130 contacts, the second valve portion 400 is opened by the power from right end cap 130, the second valve portion 400, the first oil pocket
Liquid oil in 240 enters in the second oil pocket 250 by oil storage unit 230, and the liquid oil in the second oil pocket 250 plays buffer function；
Piston main body 200 is mobile towards left end cap 120, but when the first valve portion 300 is not mobile with left end cap 120, the second valve portion
400 are opened by the liquid oil pressure in the second oil pocket 250, the second valve portion 400, and the liquid oil in the second oil pocket 250 enters storage
In oily portion 230, the first valve portion 300 is closed.
In addition, the first valve portion 300 and the second valve portion 400 may be configured as multiple, quantity will be according to the through-flow face of hydraulic fluid port
Product is calculated, and is uniformly arranged along the circumferencial direction of piston main body 200, guarantees at least there is one group in piston main body 200
First valve portion 300 and the second valve portion 400.
Cushion cylinder provided in this embodiment, comprising: oil cylinder main body 100, piston rod 110, left end cap 120 and right end cap
130, further includes: piston main body 200, oil storage unit 230, the first valve portion 300, the second valve portion 400；Piston rod 110 is extend into
In oil cylinder main body 100, piston rod 110 is moved back and forth along oil cylinder main body 100, and piston main body 200 and piston rod 110 extend into oil
One end of cylinder main body 100 connects, and forms the first oil pocket between left end cap 120, piston main body 200 and the end face of piston rod 110
240, the second oil pocket 250 is formed between right end cap 130, oil cylinder main body 100, piston main body 200 and the side wall of piston rod 110；It is living
The first valve mounting apertures 210 and the second valve mounting apertures 220, the first valve portion 300 and the second valve are offered in plug main body 200
Portion 400 is respectively arranged in the first valve mounting apertures 210 and the second valve mounting apertures 220, and the first valve portion 300 and the second valve
Door portion 400 is connect with piston main body 200, is provided with oil storage unit 230 in piston main body 200, oil storage unit 230 respectively with the first valve
Door mounting hole 210 is connected to the second valve mounting apertures 220, and the first valve portion 300 is for passing through the liquid oil in the second oil pocket 250
Oil storage unit 230 is flowed into the first oil pocket 240, and the second valve portion 400 is for making the liquid oil in the first oil pocket 240 by oil storage unit
230 are flowed into the second oil pocket 250.By the way that the first valve portion 300 and the second valve portion 400 are arranged in piston main body 200,
In the reciprocating motion of piston rod 110, when piston main body 200 is contacted with left end cap 120, the first valve portion 300 and left end cap 120
Contact, the first valve portion 300 are opened, and the liquid oil in the second oil pocket 250 is flowed into the first oil pocket 240 by oil storage unit 230, the
Liquid oil in one oil pocket 240 plays buffer function, when piston main body 200 and right end cap 130 contact, the second valve portion 400 with
Right end cap 130 contacts, and the second valve portion 400 is opened, and the liquid oil in the first oil pocket 240 enters the second oil by oil storage unit 230
In chamber 250, the liquid oil in the second oil pocket 250 plays buffer function, alleviate traditional bumper post existing in the prior art with
Cushion collar has a particular/special requirement to cylinder structure, and the tolerance of bumper post and cushion collar is difficult to control, slightly not paying attention to imitating with regard to buffer loss
The technical issues of fruit, it is simple to realize in-oil cylinder buffer structure, the apparent technical effect of buffering effect.
On the basis of the above embodiments, further, the first valve portion 300 in cushion cylinder provided in this embodiment
Including the first valve rod 310 and the first check valve 320；First valve rod 310 and the first check valve 320 are all set in the installation of the first valve
In hole 210, the first valve rod 310 and the first check valve 320 are cooperatively connected, the one end of the first valve rod 310 far from the first check valve 320
Stretch out the first valve mounting apertures 210 and towards left end cap 120, the one end of the first check valve 320 far from the first valve rod 310 is towards right
End cap 130, the first valve rod 310 can protrude into the first check valve 320, the first check valve 320 is opened, so that the second oil pocket
Liquid oil in 250 is flowed into the first oil pocket 240 by oil storage unit 230.
Further, the second valve portion 400 includes the second valve rod 410 and second one-way valve 420；Second valve rod 410 and
Two check valves 420 are all set in the second valve mounting apertures 220, and the second valve rod 410 and second one-way valve 420 are cooperatively connected, the
One end stretching second valve mounting apertures 220 of two valve rods 410 far from second one-way valve 420 are simultaneously unidirectional towards right end cap 130, second
The one end of valve 420 far from the second valve rod 410 can be protruded into towards left end cap 120, the second valve rod 410 into second one-way valve 420, with
Second one-way valve 420 is opened, so that the liquid oil in the first oil pocket 240 is flowed into the second oil pocket 250 by oil storage unit 230.
Specifically, when piston main body 200 is mobile towards left end cap 120 and the first valve rod 310 is contacted with left end cap 120,
First valve portion 300 is contacted with left end cap 120, and the first valve rod 310 is by the power from left end cap 120, and the first valve rod 310 is by
Spring in one check valve 320 opens, and the first check valve 320 is opened, and the liquid oil in the second oil pocket 250 is flowed by oil storage unit 230
Enter into the first oil pocket 240, the liquid oil in the first oil pocket 240 plays buffer function to piston rod 110；When 200 court of piston main body
It is mobile to right end cap 130, but when the second valve rod 410 is not contacted with right end cap 130, the first check valve 320 is by from the first oil
The pressure of liquid oil in chamber 240, the first check valve 320 are opened, and the liquid oil in the first oil pocket 240 enters in oil storage unit 230, this
When, second one-way valve 420 is closed, and the liquid oil in oil storage unit 230 is avoided to enter in the second oil pocket 250；When 200 court of piston main body
It is mobile to right end cap 130, and when the second valve rod 410 is contacted with right end cap 130, the second valve rod 410 is by from right end cap 130
Power, the second valve rod 410 open the spring in second one-way valve 420, and second one-way valve 420 is opened, the liquid in the first oil pocket 240
Oil enters in the second oil pocket 250 by oil storage unit 230, and the liquid oil in the second oil pocket 250 plays buffering to piston rod 110 and makees
With；Piston main body 200 is mobile towards left end cap 120, but when the first valve rod 310 is not mobile with left end cap 120, second one-way valve
420 are opened by the liquid oil pressure in the second oil pocket 250, second one-way valve 420, and the liquid oil in the second oil pocket 250 enters
In oil storage unit 230, at this point, the first check valve 320 is closed, the liquid oil in the second oil pocket 250 is avoided to enter the first oil pocket 240
It is interior.
Cushion cylinder provided in this embodiment makes the second oil by the setting of the first valve rod 310 and the first check valve 320
Liquid oil in chamber 250 can enter in the first oil pocket 240, play buffer function to piston rod 110；Pass through 410 He of the second valve rod
The setting of second one-way valve 420 enter the liquid oil in the first oil pocket 240 can in the second oil pocket 250, rise to piston rod 110
To buffer function.
It on the basis of the above embodiments, further, further include partition 500 in cushion cylinder provided in this embodiment；
Partition 500 is set as two, and two partitions 500 are set around on the outer surface of piston main body 200, and two partitions 500 and work
It encloses between plug main body 200 equipped with oil storage unit 230.
Further, two partitions 500 are fixedly connected with piston main body 200, are provided with welding between two partitions 500
Transitional seams 510.
Specifically, being provided with partition 500 on the outer surface of piston main body 200, partition 500 seals oil storage unit 230, two
A partition 500 is welded on the outer surface of piston main body 200, and there are welding transitions to stitch 510 between two partitions 500,
During partition 500 welds, it may appear that the case where two partitions 500 contact with each other influences welding, and setting welding transition stitches 510
It avoids interacting between two partitions 500.
Further, piston main body 200 is provided with the first oilhole 260, the first oilhole 260 close to the side of left end cap 120
It is connected to oil storage unit 230, the liquid oil in oil storage unit 230 is entered in the first oil pocket 240 by the first oilhole 260；Piston main body
200 are provided with the second oilhole 270 close to the side of right end cap 130, and the second oilhole 270 is connected to oil storage unit 230, oil storage unit 230
Interior liquid oil is entered in the second oil pocket 250 by the second oilhole 270.
It is entered in the first oil pocket 240 specifically, the setting of the first oilhole 260 increases the liquid oil in oil storage unit 230
Oil inlet area, the case where avoiding the occurrence of throttling, similarly the setting of the second oilhole 270 effectively avoid the liquid oil in oil storage unit 230 into
Enter into the second oil pocket 250 the case where throttling.
Cushion cylinder provided in this embodiment is sealed oil storage unit 230 by the setting of partition 500；Pass through the first oilhole
260 and second setting of oilhole 270 the case where effectively avoiding liquid oil from throttling.
On the basis of the above embodiments, further, the piston main body 200 in cushion cylinder provided in this embodiment leans on
The side of nearly left end cap 120 is provided with step surface 280.
Further, piston main body 200 is provided with boss 290 close to the side of right end cap 130.
Specifically, being provided with step surface 280 close to the side of left end cap 120 in piston main body 200, step surface 280 is set
Setting makes piston main body 200 and when left end cap 120 contacts, there are the first oil pocket 240 between step surface 280 and left end cap 120, is convenient for
Oil inlet；The side of right end cap 130 is provided with boss 290 in piston main body 200, the setting of boss 290 makes piston main body 200
When contacting with right end cap 130, the second oil pocket 250 will not be disappeared by compression, enter in second chamber convenient for extraneous liquid oil.
Further, the diameter of the first valve rod 310 is gradually increased from both ends to centre.
It is set to that mid diameter is big, and both ends diameter is small, broad in the middle specifically, the first valve rod 310 and the second valve rod 410 are all provided with
It is fixed in piston only conducive to the first valve rod 310 and the second valve rod 410, it is small in ends to be conducive to the first valve rod 310 and the second valve rod
410 open the first check valve 320 and second one-way valve 420.
Further, the first oil inlet 121 and the second oil inlet 122 are provided on left end cap 120；First oil inlet 121
It is connected to the first oil pocket 240, liquid oil is entered in the first oil pocket 240 by the first oil inlet 121；Second oil inlet 122 and
The connection of two oil pockets 250, liquid oil are entered in the second oil pocket 250 by the second oil inlet 122.
Specifically, the first oil inlet 121 and the second oil inlet 122 are arranged on left end cap 120, liquid oil passes through the first oil inlet
Mouth 121 enters in the first oil pocket 240, and liquid oil is entered in the second oil pocket 250 by the second oil inlet 122.
Cushion cylinder provided in this embodiment enters by the setting of step surface 280 and boss 290 convenient for liquid oil
In one oil pocket 240 and the second oil pocket 250.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of cushion cylinder, comprising: oil cylinder main body, piston rod, left end cap and right end cap, which is characterized in that further include: piston
Main body, oil storage unit, the first valve portion, the second valve portion；
The piston rod is extend into the oil cylinder main body, and the piston rod is moved back and forth along the oil cylinder main body, the work
Plug main body is connect with one end that the piston rod extend into the oil cylinder main body, the left end cap, the piston main body and described
The first oil pocket, the right end cap, the oil cylinder main body, the piston main body and the piston rod are formed between the end face of piston rod
Side wall between form the second oil pocket；
The first valve mounting apertures and the second valve mounting apertures, first valve portion and described are offered on the piston main body
Two valve portions are respectively arranged in first valve mounting apertures and second valve mounting apertures, and first valve portion and
Second valve portion is connect with the piston main body, and the oil storage unit, the oil storage unit are provided in the piston main body
It is connected to respectively with first valve mounting apertures and second valve mounting apertures, first valve portion is for making described second
Liquid oil in oil pocket is flowed into first oil pocket by the oil storage unit, and second valve portion is for making first oil
Intracavitary liquid oil is flowed into second oil pocket by the oil storage unit.
2. cushion cylinder according to claim 1, which is characterized in that first valve portion includes the first valve rod and first
Check valve；
First valve rod and first check valve are all set in first valve mounting apertures, first valve rod and institute
The mating connection of the first check valve is stated, first valve rod stretches out the first valve installation far from one end of first check valve
Hole and towards the left end cap, the one end of first check valve far from first valve rod is towards the right end cap, and described
One valve rod can be protruded into first check valve, first check valve be opened, so that the liquid in second oil pocket
Oil is flowed into first oil pocket by the oil storage unit.
3. cushion cylinder according to claim 2, which is characterized in that second valve portion includes the second valve rod and second
Check valve；
Second valve rod and the second one-way valve are all set in second valve mounting apertures, second valve rod and institute
Second one-way valve mating connection is stated, second valve rod stretches out the second valve installation far from one end of the second one-way valve
Hole and towards the right end cap, the one end of the second one-way valve far from second valve rod is towards the left end cap, and described
Two valve rods can be protruded into the second one-way valve, and the second one-way valve is opened, so that the liquid in first oil pocket
Oil is flowed into second oil pocket by the oil storage unit.
4. cushion cylinder according to claim 1, which is characterized in that further include partition；
The partition is set as two, and two partitions are set around on the outer surface of the piston main body, and described in two
It is enclosed between partition and the piston main body equipped with the oil storage unit.
5. cushion cylinder according to claim 4, which is characterized in that two partitions are fixed with the piston main body
It connects, welding transition seam is provided between two partitions.
6. cushion cylinder according to claim 1, which is characterized in that the piston main body is close to the side of the left end cap
It is provided with the first oilhole, first oilhole is connected to the oil storage unit, and the liquid oil in the oil storage unit passes through first oil
Hole enters in first oil pocket；
The piston main body is provided with the second oilhole close to the side of the right end cap, and second oilhole and the oil storage unit connect
Logical, the liquid oil in the oil storage unit is entered in second oil pocket by second oilhole.
7. cushion cylinder according to claim 1, which is characterized in that the piston main body is close to the side of the left end cap
It is provided with step surface.
8. cushion cylinder according to claim 7, which is characterized in that the piston main body is close to the side of the right end cap
It is provided with boss.
9. cushion cylinder according to claim 2, which is characterized in that the diameter of first valve rod from both ends to centre by
It is cumulative big.
10. cushion cylinder according to claim 1, which is characterized in that be provided on the left end cap the first oil inlet and
Second oil inlet；
First oil inlet is connected to first oil pocket, and liquid oil enters first oil pocket by first oil inlet
In；
Second oil inlet is connected to second oil pocket, and liquid oil enters second oil pocket by second oil inlet
In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822066569.4U CN209398662U (en) | 2018-12-10 | 2018-12-10 | Cushion cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822066569.4U CN209398662U (en) | 2018-12-10 | 2018-12-10 | Cushion cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN209398662U true CN209398662U (en) | 2019-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN (1) | CN209398662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340216A (en) * | 2018-12-10 | 2019-02-15 | 江苏恒立液压股份有限公司 | Cushion cylinder |
-
2018
- 2018-12-10 CN CN201822066569.4U patent/CN209398662U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340216A (en) * | 2018-12-10 | 2019-02-15 | 江苏恒立液压股份有限公司 | Cushion cylinder |
| CN109340216B (en) * | 2018-12-10 | 2024-03-26 | 江苏恒立液压股份有限公司 | Buffer oil cylinder |
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