CN208503141U - A kind of power cylinder - Google Patents
A kind of power cylinder Download PDFInfo
- Publication number
- CN208503141U CN208503141U CN201821172100.2U CN201821172100U CN208503141U CN 208503141 U CN208503141 U CN 208503141U CN 201821172100 U CN201821172100 U CN 201821172100U CN 208503141 U CN208503141 U CN 208503141U
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- cylinder sleeve
- piston
- cylinder
- push rod
- bearing bracket
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Abstract
The utility model discloses a kind of power cylinders, including the first cylinder sleeve, rear end cap set on first cylinder sleeve one end, set on the first drive end bearing bracket of the first cylinder sleeve other end, first piston in the first cylinder sleeve, first passage on rear end cap, second channel on the first drive end bearing bracket, one end it is fixed be set on first piston and the second cylinder sleeve for being arranged in the first cylinder sleeve, set on the second cylinder sleeve other end and stretch out the first cylinder sleeve the second drive end bearing bracket, second piston in the second cylinder sleeve, third channel on the second drive end bearing bracket, the fourth lane being connected to first passage being opened on first piston, the movable push rod being set in the second cylinder sleeve, one end of push rod is set in second piston.The stroke of push rod greatly improved in a kind of power cylinder of the utility model, that is, improves push rod with respect to the distance that the first cylinder sleeve stretches out, and solves the problems, such as to cause push rod outreach inadequate since space is smaller, and power cylinder is made to have bigger application range.
Description
Technical field
The utility model relates to a kind of power cylinders.
Background technique
Power cylinder is that hydraulic energy or air pressure are changed into mechanical energy, do holding for straight reciprocating motion (or pendulum motion)
Units generally comprise hydraulic cylinder and pneumatic cylinder.
In some machining tools, since its inner space is limited, the size of the cylinder body for the power cylinder being put into also has
Limit, this directly influences the length dimension of push rod in cylinder body.When machine tooling needs to use longer push rod, then need replacing
Lathe improves the structure of lathe, higher cost, and production and processing efficiency is lower.
Summary of the invention
The purpose of the utility model is to provide a kind of power cylinders, and under identical cylinder size, the stroke ratio of push rod is conventional
Power cylinder in push rod stroke it is longer, solving the problems, such as that space is smaller causes push rod outreach inadequate.
In order to achieve the above objectives, the technical solution adopted in the utility model is:
A kind of power cylinder, including the first cylinder sleeve, set on first cylinder sleeve one end rear end cap, be set to first cylinder sleeve
First drive end bearing bracket of the other end, movable first in first cylinder sleeve of length extending direction along first cylinder sleeve
Piston, is set to institute at the first passage for being passed through pass-out flow media into first cylinder sleeve on the rear end cap
State the second channel for being used to be passed through pass-out flow media into first cylinder sleeve on the first drive end bearing bracket；
The power cylinder further include one end it is fixed be set on the first piston and be arranged in first cylinder sleeve
The second cylinder sleeve, the second drive end bearing bracket set on the second cylinder sleeve other end, the length extending direction along second cylinder sleeve it is living
The dynamic second piston being set in second cylinder sleeve, on second drive end bearing bracket for leading into second cylinder sleeve
Enter the third channel of pass-out flow media, is offered on the first piston for guiding flow media from the first passage
It is passed through the fourth lane of the second cylinder sleeve described in pass-out；The other end of second cylinder sleeve stretches out first cylinder sleeve；
The power cylinder further include along second cylinder sleeve length extending direction it is movable be set to second cylinder sleeve in
Push rod, one end of the push rod is set in the second piston.
Preferably, the power cylinder further include set between first cylinder sleeve and the rear end cap the first sealing ring,
The second sealing ring between first cylinder sleeve and first drive end bearing bracket is set to first cylinder sleeve and described first living
Third sealing ring between plug, is set to described the at the 4th sealing ring between second cylinder sleeve and the first piston
The 5th sealing ring between two cylinder sleeves and second drive end bearing bracket, between second cylinder sleeve and the second piston
Six sealing rings, the 7th sealing ring between the second piston and the push rod.
Preferably, the power cylinder further includes first for being locked at second cylinder sleeve on first drive end bearing bracket
Locking nut, the second locking nut for being locked at the push rod on second drive end bearing bracket.
Preferably, the power cylinder further includes dust-proof set on first between first drive end bearing bracket and second cylinder sleeve
Circle, the second dustband between second drive end bearing bracket and the push rod.
Preferably, the power cylinder further include the fixed outside circumference for being sheathed on the first piston and ring be butted on it is described
First wear ring of the inside circumference of the first cylinder sleeve, the outside circumference for being sheathed on the second piston of fixation and ring are butted on described
Second wear ring of the inside circumference of the second cylinder sleeve.
Preferably, the power cylinder further includes that fixed ring is butted on the inside circumference of first drive end bearing bracket and is sheathed on institute
The ring of the first oilless bearing, fixation of stating the outside circumference of the second cylinder sleeve is butted on the inside circumference of second drive end bearing bracket and is arranged
In the second oilless bearing of the outside circumference of the push rod.
Preferably, the power cylinder further includes between being located at the top of the second piston bottom and the first piston
First cushion.
Preferably, the power cylinder further includes the second cushion at the top of the second piston, second buffering
Pad includes being opened in the first sawtooth arranged in a ring therein, multilayer loop be set to circumference on the outside of the push rod with described first
The second sawtooth that sawtooth is meshed.
Preferably, the push rod is hollow structure, and the push rod offers spray hole far from one end of the second piston,
The Five-channel for being connected to the fourth lane and the push rod is offered in the second piston, the power cylinder further includes
The fixing bolt for being fixed on the push rod in the second piston being arranged in the Five-channel and the push rod,
The fixing bolt is also used to separate the push rod and the fourth lane.
Preferably, first cylinder sleeve, the rear end cap, first drive end bearing bracket, the first piston, second cylinder
Set, second drive end bearing bracket, the second piston, the push rod coaxially extend.
Due to the application of the above technical scheme, the utility model has the advantage that this is practical new compared with prior art
A kind of power cylinder of type is arranged in the second cylinder sleeve by the way that the second cylinder sleeve is arranged in the first cylinder sleeve, and by push rod, greatly improved
The stroke of push rod improves push rod with respect to the distance that the first cylinder sleeve stretches out, solve causes push rod to stretch out since space is smaller
Apart from inadequate problem, make power cylinder that there is bigger application range.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the utility model power cylinder；
Attached drawing 2 is the enlarged diagram of A in attached drawing 1；
Attached drawing 3 is the enlarged diagram of B in attached drawing 1.
Wherein: 1, the first cylinder sleeve；2, rear end cap；3, the first drive end bearing bracket；4, first piston；5, first passage；6, second is logical
Road；7, the second cylinder sleeve；8, the second drive end bearing bracket；9, second piston；10, third channel；11, fourth lane；12, push rod；13, first
Sealing ring；14, the second sealing ring；15, third sealing ring；16, the 4th sealing ring；17, the 5th sealing ring；18, the 6th sealing ring；
19, the 7th sealing ring；20, the first locking nut；21, the second locking nut；22, the first dustband；23, the second dustband；24,
First wear ring；25, the second wear ring；26, the first oilless bearing；27, the second oilless bearing；28, the first cushion；29,
Two cushions；30, the first sawtooth；31, the second sawtooth；32, fixing bolt.
Specific embodiment
The technical solution of the utility model is further elaborated with reference to the accompanying drawing.
Join as shown in figure 1 to 3, above-mentioned a kind of power cylinder, including the first cylinder sleeve 1, the rear end cap set on 1 lower end of the first cylinder sleeve
2, the first drive end bearing bracket 3 set on 1 upper end of the first cylinder sleeve, the length extending direction along the first cylinder sleeve 1 are movable is set to the first cylinder sleeve 1
In first piston 4, on rear end cap 2 for be passed through into the first cylinder sleeve 1 pass-out flow media first passage 5, set
In the second channel 6 for being used to be passed through pass-out flow media into the first cylinder sleeve 1 on the first drive end bearing bracket 3.When from first passage 5 to
Flow media is passed through in first cylinder sleeve 1 and when from second channel 6 to the first 1 outer pass-out flow media of cylinder sleeve, first piston 4 is
Rise in one cylinder sleeve 1；When flow media being passed through into the first cylinder sleeve 1 from second channel 6 and from first passage 5 to the first cylinder sleeve 1
When outer pass-out flow media, first piston 4 declines in the first cylinder sleeve 1.
Above-mentioned power cylinder further includes that fixed being sheathed on 4 upper end of first piston and movable in lower end is arranged in the first cylinder sleeve
The second cylinder sleeve 7 in 1, the second drive end bearing bracket 8 set on 7 upper end of the second cylinder sleeve, the length extending direction along the second cylinder sleeve 7 are movable
Second piston 9 in the second cylinder sleeve 7, being situated between on the second drive end bearing bracket 8 for being passed through pass-out flowing into the second cylinder sleeve 7
The third channel 10 of matter is offered for guiding flow media to be passed through the second cylinder sleeve of pass-out from first passage 5 on first piston 4
7 fourth lane 11；The upper end of the first cylinder sleeve 1 is stretched out in the upper end of second cylinder sleeve 7.When successively from first passage 5 and fourth lane
11 are passed through flow media into the second cylinder sleeve 7 and when from third channel 10 to the second 7 outer pass-out flow media of cylinder sleeve, second piston
9 rise in the second cylinder sleeve 7；When flow media being passed through into the second cylinder sleeve 7 from third channel 10 and successively from fourth lane 11
When with first passage 5 to the second 7 outer pass-out flow media of cylinder sleeve, second piston 9 declines in the second cylinder sleeve 7.
Above-mentioned power cylinder further includes the movable push rod being set in the second cylinder sleeve 7 of length extending direction along the second cylinder sleeve 7
12, the lower end of push rod 12 is connected in second piston 9.
In the present embodiment, before the first cylinder sleeve 1, rear end cap 2, the first drive end bearing bracket 3, first piston 4, the second cylinder sleeve 7, second
End cap 8, second piston 9, push rod 12 are coaxial to be extended, and axial line extends along the vertical direction.
In above-mentioned power cylinder, flow media can be the low corrosions media such as gas, lightweight water, oil.
Above-mentioned power cylinder further includes the first sealing ring 13 being set between the first cylinder sleeve 1 and rear end cap 2, is set to the first cylinder sleeve
1 and first the second sealing ring 14 between drive end bearing bracket 3, the third sealing ring 15 between the first cylinder sleeve 1 and first piston 4.
The first cylinder sleeve 1 is sealed from lower end and upper end respectively by the first sealing ring 13 of setting and the second sealing ring 14, can guarantee first
The sealing performance of cylinder sleeve 1；By the way that third sealing ring 15 is arranged, it can guarantee that first piston 4 will be divided into up and down inside first cylinder sleeve 1
Two mutual disconnected cavitys.
Above-mentioned power cylinder further includes the 4th sealing ring 16 being set between the second cylinder sleeve 7 and first piston 4, is set to the second cylinder
The 5th sealing ring 17 between set 7 and the second drive end bearing bracket 8, the 6th sealing ring between the second cylinder sleeve 7 and second piston 9
18, the 7th sealing ring 19 between second piston 9 and push rod 12.Pass through the 4th sealing ring 16 of setting and the 5th sealing ring 17
The second cylinder sleeve 7 is sealed from lower end and upper end respectively, can guarantee the sealing performance of the second cylinder sleeve 7；By the way that the 6th sealing ring is arranged
18, it can guarantee that second piston 9 will be divided into two mutual disconnected cavitys up and down inside second cylinder sleeve 7；It is close by setting the 7th
Seal 19 can guarantee the air-tightness between second piston 9 and push rod 12.
Above-mentioned power cylinder further includes the first locking nut 20 for being locked at the second cylinder sleeve 7 on first drive end bearing bracket 3, uses
In the second locking nut 21 being locked at push rod 12 on second drive end bearing bracket 8.Pass through the first locking nut of setting 20 and the second lock
Tight nut 21, when power cylinder is extended to the height of needs, the lock that can be cooperated the second cylinder sleeve 7 by the first locking nut 20
Tightly on the first drive end bearing bracket 3, it is locked on the second drive end bearing bracket 8 by the second locking nut 21 by what push rod 12 cooperated, effectively
It ensure that stability of the power cylinder in elongation state.
Above-mentioned power cylinder further includes the first dustband 22 being set between the first drive end bearing bracket 3 and the second cylinder sleeve 7, is set to second
The second dustband 23 between drive end bearing bracket 8 and push rod 12.It, can be effective by the first dustband 22 of setting and the second dustband 23
Prevent dust from top enter the first drive end bearing bracket 3 and the second drive end bearing bracket 8 in.
Above-mentioned power cylinder further includes the fixed outside circumference for being sheathed on first piston 4 and ring is butted on the interior of the first cylinder sleeve 1
First wear ring 24 of side circumference, the fixed outside circumference for being sheathed on second piston 9 and ring are butted on the inside week of the second cylinder sleeve 7
Second wear ring 25 in portion.By the first wear ring 24 of setting and the second wear ring 25, first piston 4 and second piston are reduced
9 wear rate extends the service life of first piston 4 and second piston 9.
Above-mentioned power cylinder further includes that fixed ring is butted on the inside circumference of the first drive end bearing bracket 3 and is sheathed on the second cylinder sleeve 7
First oilless bearing 26 of outside circumference, fixed ring are butted on the inside circumference of the second drive end bearing bracket 8 and are sheathed on the outer of push rod 12
Second oilless bearing 27 of side circumference.By the first oilless bearing 26 of setting and the second oilless bearing 27, moving power cylinder
When can reduce certain longitudinal frictional resistance, and bear certain lateral resistance, extend the service life of power cylinder.
Above-mentioned power cylinder further include the first cushion 28 being located between 9 bottom of second piston and the top of first piston 4,
The second cushion 29 set on 9 top of second piston.Second cushion 29 includes being opened in therein arranged in a ring first
Sawtooth 30, multilayer loop are set to the second sawtooth 31 of the outside circumference of push rod 12 being meshed with the first sawtooth 30, and push rod 12 is along it
Length extending direction is arranged in the second cushion 29.By the first cushion 28 of setting and the second cushion 29, reduce dynamic
The impact force that the movement of power cylinder generates, extends the service life of power cylinder.
In the present embodiment, above-mentioned push rod 12 is hollow structure, and the upper end of push rod 12 offers spray hole and (do not show in figure
Out).It is offered in second piston 9 for being connected to fourth lane 11 and the Five-channel of the push rod 12 with hollow cavity.It is above-mentioned
Power cylinder further includes the fixing bolt for being fixed on push rod 12 in second piston 9 being arranged in Five-channel and push rod 12
32, which is also used to separate push rod 12 and fourth lane 11, prevents power cylinder in normal work, flow media into
Enter in push rod 12.When needing to spray cleaning inside lathe, it is only necessary to push rod 12 be extend out to the height of needs, then by the
One locking nut 20 and the second locking nut 21 lock the second cylinder sleeve 7 and push rod 12 respectively, fixing bolt 32 are then removed, from rear
Cleansing medium is passed through in end cap 2, cleansing medium successively enters from first passage 5, fourth lane 11, Five-channel with hollow cavity
In the push rod 12 of body, finally sprayed from the spray hole at 12 top of push rod.
In the present embodiment, power cylinder is cylinder, and overall length is 620mm after power cylinder is shunk, and 1 internal diameter of the first cylinder sleeve is
32mm, 7 internal diameter of the second cylinder sleeve are 20mm, and the diameter of push rod 12 is 12mm, stroke 415mm, and air pressure is 0.4Mpa in air accumulator.
In the case where no compressed air supplement, the intake valve of cylinder is opened by PLC control unit, cylinder quickly stretches out in place,
Time inside cylinder overall length at 1 second can extend to 1445mm.The power cylinder light weight, small in size, the extension elongation of push rod 12 is more
It is long.Compared with the cylinder of common same volume, the extension elongation of push rod 12 is 2-3 times or more of common cylinder.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (10)
1. a kind of power cylinder, it is characterised in that: including the first cylinder sleeve, set on first cylinder sleeve one end rear end cap, be set to institute
State the first cylinder sleeve other end the first drive end bearing bracket, along first cylinder sleeve length extending direction it is movable be set to first cylinder
First piston in set, first for being passed through pass-out flow media into first cylinder sleeve on the rear end cap are logical
Road, the second channel for being used to be passed through pass-out flow media into first cylinder sleeve on first drive end bearing bracket；
The power cylinder further include one end it is fixed be set on the first piston and be arranged in first cylinder sleeve the
Two cylinder sleeves, the second drive end bearing bracket set on the second cylinder sleeve other end, the length extending direction along second cylinder sleeve are movable
It is second piston in second cylinder sleeve, logical for being passed through into second cylinder sleeve on second drive end bearing bracket
The third channel of flow media out is offered for guiding flow media to be passed through from the first passage on the first piston
The fourth lane of second cylinder sleeve described in pass-out；The other end of second cylinder sleeve stretches out first cylinder sleeve；
The power cylinder further includes movable the pushing away in second cylinder sleeve of length extending direction along second cylinder sleeve
One end of bar, the push rod is set in the second piston.
2. a kind of power cylinder according to claim 1, it is characterised in that: the power cylinder further includes being set to first cylinder
The first sealing ring between set and the rear end cap, the second sealing between first cylinder sleeve and first drive end bearing bracket
Circle, is set to second cylinder sleeve and described first at the third sealing ring between first cylinder sleeve and the first piston
The 4th sealing ring between piston, is set to institute at the 5th sealing ring between second cylinder sleeve and second drive end bearing bracket
State the 6th sealing ring between the second cylinder sleeve and the second piston, the between the second piston and the push rod the 7th
Sealing ring.
3. a kind of power cylinder according to claim 1, it is characterised in that: the power cylinder further includes being used for described second
The first locking nut that cylinder sleeve is locked on first drive end bearing bracket, for the push rod to be locked at second drive end bearing bracket
The second locking nut.
4. a kind of power cylinder according to claim 1, it is characterised in that: the power cylinder further includes before being set to described first
It is the first dustband between end cap and second cylinder sleeve, second between second drive end bearing bracket and the push rod dust-proof
Circle.
5. a kind of power cylinder according to claim 1, it is characterised in that: the power cylinder further includes fixed being sheathed on institute
It states the outside circumference of first piston and ring is butted on the first wear ring of inside circumference of first cylinder sleeve, fixation is sheathed on institute
State the outside circumference of second piston and ring be butted on second cylinder sleeve inside circumference the second wear ring.
6. a kind of power cylinder according to claim 1, it is characterised in that: the power cylinder further includes that fixed ring is butted on institute
It states the inside circumference of the first drive end bearing bracket and is sheathed on the first oilless bearing of the outside circumference of second cylinder sleeve, the ring of fixation supports
In second drive end bearing bracket inside circumference and be sheathed on the push rod outside circumference the second oilless bearing.
7. a kind of power cylinder according to claim 1, it is characterised in that: the power cylinder further includes being located in described second
The first cushion between at the top of piston base and the first piston.
8. a kind of power cylinder according to claim 1, it is characterised in that: the power cylinder further includes being set to described second to live
Second cushion at top is filled in, second cushion includes being opened in the first sawtooth arranged in a ring therein, multilayer loop
The second sawtooth of circumference being meshed with first sawtooth on the outside of the push rod.
9. a kind of power cylinder according to claim 1, it is characterised in that: the push rod is hollow structure, and the push rod is remote
One end from the second piston offers spray hole, is offered in the second piston for being connected to the fourth lane and institute
The Five-channel of push rod is stated, the power cylinder further includes being arranged in the Five-channel and the push rod to be used to push away described
Bar is fixed on the fixing bolt in the second piston, and the fixing bolt is also used to separate the push rod and the four-way
Road.
10. a kind of power cylinder according to claim 1, it is characterised in that: first cylinder sleeve, the rear end cap, described
First drive end bearing bracket, the first piston, second cylinder sleeve, second drive end bearing bracket, the second piston, the push rod are same
Axis extends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172100.2U CN208503141U (en) | 2018-07-24 | 2018-07-24 | A kind of power cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172100.2U CN208503141U (en) | 2018-07-24 | 2018-07-24 | A kind of power cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208503141U true CN208503141U (en) | 2019-02-15 |
Family
ID=65290741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821172100.2U Active CN208503141U (en) | 2018-07-24 | 2018-07-24 | A kind of power cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208503141U (en) |
-
2018
- 2018-07-24 CN CN201821172100.2U patent/CN208503141U/en active Active
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