CN208474231U - Stretching rotatably compresses cylinder - Google Patents
Stretching rotatably compresses cylinder Download PDFInfo
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- CN208474231U CN208474231U CN201820887519.XU CN201820887519U CN208474231U CN 208474231 U CN208474231 U CN 208474231U CN 201820887519 U CN201820887519 U CN 201820887519U CN 208474231 U CN208474231 U CN 208474231U
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- 230000009471 action Effects 0.000 claims description 16
- 238000009423 ventilation Methods 0.000 description 11
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 238000003825 pressing Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005056 compaction Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 239000002360 explosive Substances 0.000 description 1
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Abstract
The utility model discloses a kind of stretchings to rotatably compress cylinder, including preceding cylinder barrel, rear cylinder barrel, drive end bearing bracket, intermediate end cover, rear end cap, secondary piston bar, secondary piston, rear piston rod and rear piston；The drive end bearing bracket is mounted on the front end of the preceding cylinder barrel, and the intermediate end cover is mounted between the preceding cylinder barrel and the rear cylinder barrel, and the rear end cap is mounted on the rear end of the rear cylinder barrel；The secondary piston and at least partly described secondary piston bar are located in the preceding cylinder barrel；Piston and at least partly described rear piston rod are located in the rear cylinder barrel after described；By spiral locating part come plug connection between the secondary piston bar and the rear piston rod, and the secondary piston bar is used for elastic and is rotated about axis；Piston rod is equipped with circumferential locating part after described, and the rear piston rod is for elastic.The utility model can be realized revolution and vertical movement distribution carries out, and be able to achieve multistation variation.
Description
Technical field
The utility model relates to the technical fields of cylinder more particularly to a kind of stretching to rotatably compress cylinder.
Background technique
Existing rotating down pressing cylinder is generally made of nested piston rod assembly, end cap and cylinder barrel.It is controlled by gas circuit
It successively realizes revolution and rises, complete the purpose for compressing bottleneck, clearing up bottle.
A kind of existing rotating down pressing cylinder be revolution and rise be it is synchronous progress, in the case where needing to avoid workpiece
This form is just difficult to meet demand.Another kind is to can be only done rotating down pressing one having the process of separated movement simply
Clamping movement, is not able to satisfy the demand of multistation.
Therefore, it is necessary to design, one kind can be realized revolution and vertical movement distribution carries out, and is able to achieve multistation variation
Stretching rotatably compress cylinder.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, and providing one kind can be realized revolution and vertical movement
Distribution carries out, and the stretching for being able to achieve multistation variation rotatably compresses cylinder.
The technical solution of the utility model provides a kind of stretch out and rotatably compresses cylinder, including preceding cylinder barrel, rear cylinder barrel, front end
Lid, intermediate end cover, rear end cap, secondary piston bar, secondary piston, rear piston rod and rear piston；
The drive end bearing bracket is mounted on the front end of the preceding cylinder barrel, the intermediate end cover be mounted on the preceding cylinder barrel and it is described after
Between cylinder barrel, the rear end cap is mounted on the rear end of the rear cylinder barrel；
The secondary piston and at least partly described secondary piston bar are located in the preceding cylinder barrel；
Piston and at least partly described rear piston rod are located in the rear cylinder barrel after described；
The drive end bearing bracket is equipped with the first stomata, and first stomatal action is in the upper surface of the secondary piston；
The intermediate end cover is equipped with the second stomata and third stomata, and second stomatal action is under the secondary piston
Surface, the upper surface of third stomatal action piston after described；
The rear end cap is equipped with the 4th stomata, the lower surface of the 4th stomatal action piston after described；
The secondary piston bar and it is described after between piston rod by spiral locating part come plug connection, and the secondary piston
Bar is used for elastic and is rotated about axis；
Piston rod is equipped with circumferential locating part after described, and the rear piston rod is for elastic.
Further, the spiral locating part includes the first helicla flute and the first guide pin；
The rear end of the secondary piston bar connects the secondary piston；
Piston after the rear end connection of piston rod is described after described；
The front end of piston rod passes through the secondary piston after described, and is inserted into the secondary piston bar, the secondary piston bar
On offer two first helicla flutes, first guide pin pass through it is described after after piston rod both ends be inserted into described first
In helicla flute；
When the axial freedom of the secondary piston bar is limited, the secondary piston bar is rotated along first helicla flute.
Further, the spiral locating part includes the second helicla flute and the second guide pin；
The middle section of the secondary piston bar connects the secondary piston；
Piston after the rear end connection of piston rod is described after described；
The rear end of the secondary piston bar be inserted into it is described after in piston rod, two articles described the are offered after described on piston rod
Two helicla flutes, both ends are inserted into second helicla flute after second guide pin passes through the secondary piston bar；
When the axial freedom of the secondary piston bar is limited, the secondary piston bar is rotated along second helicla flute.
Further, the spiral locating part includes third helicla flute and third guide pin；
Piston after the rear end connection of the secondary piston bar is described；
The front end of piston rod connects the secondary piston after described；
The secondary piston bar passes through the secondary piston and the rear piston rod, offers described in two on the rear piston rod
Third helicla flute, both ends are inserted into the third helicla flute after the third guide pin passes through the secondary piston bar；
When the axial freedom of the secondary piston bar is limited, the secondary piston bar is rotated along the third helicla flute.
Further, the circumferential locating part includes straight-line groove and pin shaft, and the straight-line groove is provided with the rear piston rod
On, the pin shaft is arranged on the inner wall of the intermediate end cover.
Further, the circumferential locating part includes straight-line groove and pin shaft, and the straight-line groove is provided with the intermediate end cover
Inner wall on, the pin shaft be arranged in it is described after piston rod outer wall on.
Further, the circumferential locating part includes prismatic hole and prismatic column, and the inner wall of the intermediate end cover forms prismatic
The outer wall in hole, the rear piston rod forms prismatic column, and the prismatic column is inserted into the prismatic hole.
Further, the front end of the secondary piston bar stretches out the drive end bearing bracket and is equipped with compact heap.
After adopting the above technical scheme, having the following beneficial effects:
The utility model realizes plug connection between secondary piston bar and rear piston rod by spiral locating part, and before making
Piston rod can be elastic and be rotated about axis；In addition, rear piston rod is equipped with circumferential locating part, so that rear piston rod can only
It is elastic, it cannot be rotated about axis.Stretching in the utility model, which rotatably compresses cylinder and can be realized, to move forward and backward and turns round
The substep of movement carries out, and avoids interference with；And it can be realized multistation variation.In addition, circumferential locating part also assures accurate return
The control of gyration.
Detailed description of the invention
Referring to attached drawing, the disclosure of the utility model will be easier to understand.It is understood that these attached drawings are used only for
The purpose of explanation, and be not intended to and the protection scope of the utility model is construed as limiting.In figure:
Fig. 1 is that the perspective view for rotatably compressing cylinder is stretched out in the utility model embodiment one；
Fig. 2 is that the explosive view for rotatably compressing cylinder is stretched out in the utility model embodiment one；
Fig. 3 is that the cross-sectional view for rotatably compressing the initial bit of cylinder is stretched out in the utility model embodiment one；
Fig. 4 is the cross-sectional view that the stretching position for rotatably compressing cylinder is stretched out in the utility model embodiment one；
Fig. 5 is the cross-sectional view that the rotation position for rotatably compressing cylinder is stretched out in the utility model embodiment one；
Fig. 6 is the cross-sectional view that the compression position for rotatably compressing cylinder is stretched out in the utility model embodiment one；
Fig. 7 is that the cross-sectional view for rotatably compressing the Hui Shenwei of cylinder is stretched out in the utility model embodiment one；
Fig. 8 is the cross-sectional view that the revolution position for rotatably compressing cylinder is stretched out in the utility model embodiment one；
Fig. 9 is the cross-sectional view stretched out after the reset for rotatably compressing cylinder in the utility model embodiment one；
Figure 10 is that the structural schematic diagram for rotatably compressing cylinder is stretched out in the utility model embodiment two；
Figure 11 is that the partial structural diagram for rotatably compressing cylinder is stretched out in the utility model embodiment two；
Figure 12 is that the cross-sectional view for rotatably compressing the initial bit of cylinder is stretched out in the utility model embodiment two；
Figure 13 is the cross-sectional view that the stretching position for rotatably compressing cylinder is stretched out in the utility model embodiment two；
Figure 14 is the cross-sectional view that the rotation position for rotatably compressing cylinder is stretched out in the utility model embodiment two；
Figure 15 is the cross-sectional view that the compression position for rotatably compressing cylinder is stretched out in the utility model embodiment two；
Figure 16 is that the cross-sectional view for rotatably compressing the Hui Shenwei of cylinder is stretched out in the utility model embodiment two；
Figure 17 is the cross-sectional view that the revolution position for rotatably compressing cylinder is stretched out in the utility model embodiment two；
Figure 18 is the cross-sectional view stretched out after the reset for rotatably compressing cylinder in the utility model embodiment two；
Figure 19 is that the cross-sectional view for rotatably compressing cylinder is stretched out in the utility model embodiment three.
The appended drawing reference table of comparisons:
Cylinder barrel 3- drive end bearing bracket after cylinder barrel 2- before 1-
4- intermediate end cover 5- rear end cap 6- secondary piston bar
Piston after piston rod 9- after 7- secondary piston 8-
10- compact heap 31- the first stomata the second stomata of 41-
42- third stomata 43- pin shaft
The 4th stomata 61- the first helicla flute the first guide pin of 62- of 51-
81- straight-line groove 83- the second helicla flute the second guide pin of 84-
85- third helicla flute 86- third guide pin
Specific embodiment
Further illustrate specific embodiment of the present utility model with reference to the accompanying drawing.
It is readily appreciated that, technical solution according to the present utility model, in the case where not changing the utility model in essence spirit, this field
The various structures mode that can be replaced mutually of those skilled in the art and implementation.Therefore, following specific embodiments and
Attached drawing is only the exemplary illustration to the technical solution of the utility model, and is not to be construed as the whole of the utility model or is considered as
Utility model technical solution is defined or limited.
It mentions in the present specification or up, down, left, right, before and after, front, the back side, top, the bottom that may mention etc.
Positional terms are defined relative to each construction shown in the drawings, they are opposite concepts, and it is therefore possible to can root
Correspondingly changed according to different location locating for it, different use states.So also should not be by these or others side
Position term is construed to restricted term.
" preceding " top or front in attached drawing in the utility model, it is " rear " be in attached drawing downwardly or rearwardly.
Embodiment one:
It is the structural schematic diagram of the utility model embodiment one referring to Fig. 1-9.
Stretching rotatably compresses cylinder, including preceding cylinder barrel 1, rear cylinder barrel 2, drive end bearing bracket 3, intermediate end cover 4, rear end cap 5, secondary piston
Bar 6, secondary piston 7, rear piston rod 8 and rear piston 9；
The front end of cylinder barrel 1, intermediate end cover 4 are mounted between preceding cylinder barrel 1 and rear cylinder barrel 2 before drive end bearing bracket 3 is mounted on, rear end cap
5 are mounted on the rear end of rear cylinder barrel 2；
Secondary piston 7 and at least partly secondary piston bar 6 are located in preceding cylinder barrel 1；
Piston 9 and at least partly rear piston rod 8 are located in rear cylinder barrel 2 afterwards；
Drive end bearing bracket 3 is equipped with the first stomata 31, and the first stomata 31 acts on the upper surface of secondary piston 7；
Intermediate end cover 4 is equipped with the second stomata 41 and third stomata 42, and the second stomata 41 acts on the following table of secondary piston 7
Face, third stomata 42 act on the upper surface of rear piston 9；
Rear end cap 5 is equipped with the 4th stomata 51, and the 4th stomata 51 acts on the lower surface of rear piston 9；
By spiral locating part come plug connection between secondary piston bar 6 and rear piston rod 8, and before secondary piston bar 6 is used for
It stretches and is rotated about axis afterwards；
Piston rod 8 is equipped with circumferential locating part afterwards, and rear piston rod 8 is for elastic.
Specifically, as shown in Figure 1-3, spiral locating part includes the first helicla flute 61 and the first guide pin 62；
The rear end of secondary piston bar 6 connects secondary piston 7；
Piston 9 after the rear end connection of piston rod 8 afterwards；
The front end of piston rod 8 passes through secondary piston 7 afterwards, and is inserted into secondary piston bar 6, and two are offered on secondary piston bar 6
First helicla flute 61, both ends are inserted into the first helicla flute 61 after the first guide pin 62 passes through rear piston rod 8；
When the axial freedom of current piston rod 6 is limited, secondary piston bar 6 is rotated along the first helicla flute 61.
In the present embodiment, as shown in Fig. 2, circumferential locating part includes straight-line groove 81 and pin shaft 43, after straight-line groove 81 is provided with
On piston rod 8, pin shaft 43 is arranged on the inner wall of intermediate end cover 4.
Optionally, straight-line groove can also be provided on the inner wall of intermediate end cover 4, and the outer wall of rear piston rod 8 is arranged in pin shaft
On.
Further, as shown in Figure 1, the front end of secondary piston bar 6 stretches out drive end bearing bracket 3 and is equipped with compact heap 10.Compact heap
10 can be used for compressing bottleneck cleaning bottle.
The stretching of embodiment one rotatably compresses the course of work of cylinder are as follows: stretches out --- rotation --- compression --- time
Stretch --- revolution --- reset.
Specifically include following state:
Initial bit: as shown in figure 3, rear piston 9 is located at rear 2 middle position of cylinder barrel, the first guide pin 62 is located at the first spiral
The top of slot 61, the upper surface joint of 7 lower surface of secondary piston and intermediate end cover 4, front air cylinder are in stroke initial position.
Stretch out position: as shown in figure 4, the process of stretching is the first stomata 31 and intermediate end cover 4 of the drive end bearing bracket 3 in initial position
The second stomata 41 and the equal stuffiness of third stomata 42, (arrow in Fig. 4 indicates air inlet for the 4th stomata 51 ventilation of rear end cap 5
Direction), since the first guide pin 62 is located at the top of the first helicla flute 61, rear piston rod 8 drives the first guide pin 62 fortune upwards
It is dynamic, to drive secondary piston bar 6, secondary piston 7, compact heap 10 to move axially upward together, until exhaust hood (piston 9 after i.e.)
Stroke terminates, and preceding cylinder is similarly in stroke end position at this time, and the upper surface of secondary piston 7 is contacted with drive end bearing bracket 3.
Position is rotated, as shown in figure 5, rotary course is the 4th gas of rear end cap 5 after stretching rotatably compresses cylinder stretching in place
Hole 51 stops ventilation, and the second stomata 41 ventilation of intermediate end cover 4 for limiting the axial freedom of secondary piston bar 6, makes secondary piston
7 upper surface contacts with drive end bearing bracket 3 always and then the third stomata 42 of intermediate end cover 4 is ventilated, and rear piston rod 8 drives first to lead
It is moved down to pin 62 along the first helicla flute 61, the axial freedom due to secondary piston bar 6 is limited, in 62 He of the first guide pin
It is pivoted under the action of first helicla flute 61, compact heap 10 is driven to realize turning effort.At the end of turning effort, the first guiding
Pin 62 is located at the bottom end of the first helicla flute 61, and the stroke of the first helicla flute 61 terminates, second gas of the rear piston 9 in intermediate end cover 4
The middle part of rear cylinder barrel 2 is under the balance of power of hole 41 and third stomata 42.
Position is compressed, is rotatably compressed after cylinder is rotated in place as shown in fig. 6, stretching out, realizes compression movement, during compaction process is
Between the second stomata 41 of end cap 4 stop gas supply, the third stomata 42 of intermediate end cover 4 continues to supply.Piston 9 is in gas pressure afterwards
Under, piston rod 8 moves downward after drive, since the first guide pin 62 is located at the bottom end of the first helicla flute 61, piston rod 8 after institute
The compact heap 10 of secondary piston bar 6 and its end can be driven to move downwardly together by the first guide pin 62, realize compression movement.
The third stomata 42 for being always maintained at intermediate end cover 4 is ventilated, and other stomata stuffiness are, it can be achieved that lasting compression.
Hui Shenwei, as shown in fig. 7, returning and extending through journey is intermediate end cover 4 after the completion of stretching rotatably compresses cylinder-pressing work
Third stomata 42 stops gas supply, and the first stomata 42 of intermediate end cover 4 starts to ventilate, remaining stomata stuffiness.Secondary piston 7 is in centre
Secondary piston bar 6 is driven to move upwards under the action of the gas pressure of second stomata 41 of end cap 4, since the first guide pin 62 is located at
The bottom end of first helicla flute 61, so piston rod 8 is transported upwards together after secondary piston bar 6 can be driven by the first guide pin 62
It is dynamic, and its own is not rotated, until 7 stroke end position of secondary piston, rear piston 9 is in the middle part of rear cylinder barrel 2 at this time.
Position is turned round, as shown in figure 8, stretching rotary cylinder returns after reaching position, turning course is the second stomata of intermediate end cover 4
41 keep ventilation, limit the axial freedom of secondary piston axis 6, the 4th stomata 51 ventilation of rear end cap 5, other stomata stuffiness.
Piston 9 drives secondary piston bar 6 to move upwards under the action of the air pressure of the 4th stomata 51 afterwards, and secondary piston bar 6 drives the first guiding
Pin 62 is moved upwards along the first helicla flute 61, and the axial freedom due to secondary piston bar 6 is limited, in the first guide pin 62 and
Under the interaction of one helicla flute 61, secondary piston bar 6 is pivoted, and is influenced by the hand of spiral of the first helicla flute 61, preceding work
Stopper rod 6 can only turn round, so that compact heap 10 be driven to realize gyroscopic action together.Secondary piston 7 and rear piston 9 are located after revolution in place
In the end of upward stroke, the first guide pin 62 returns to the top of the first helicla flute 61.
It resets, as shown in figure 9, reseting procedure is that the second stomata 41 of intermediate end cover 4 and the 4th stomata 51 of rear end cap 5 are protected
Ventilation is held, the first stomata 31 of drive end bearing bracket 3 is ventilated, then the second stomata 41 of middle cylinders 4 and the 4th stomata 51 of rear end cap 5
It dies simultaneously, realizes that secondary piston 7 drives secondary piston bar 6 and rear piston rod 8 to move downward simultaneously, it is preceding after preceding cylinder trip
First stomata 31 of end cap 3 is died, and is stretched out rotary cylinder and is resetted completion.
By implementing embodiment one, have the advantage that
1, plug connection between secondary piston bar 6 and rear piston rod 8 is realized by the first guide pin 62 and the first helicla flute 61,
And enables secondary piston bar elastic and be rotated about axis；
2, straight-line groove 81 is provided on rear piston rod 8, and pin shaft 43 is arranged on the inner wall of intermediate end cover 4, so that rear piston
Bar 8 can only be elastic, cannot be rotated about axis, and ensure that the control of accurate angle of revolution.
3, stretch out rotatably compress cylinder can be realized move forward and backward with the substep of rotary motion carry out, avoid interference with；
4, it can be realized multistation variation.
Embodiment two:
It is the structural schematic diagram of the utility model embodiment two referring to shown in Figure 10-18.
What is different from the first embodiment is that as shown in figs. 10-11, spiral locating part includes the second helicla flute 83 and the second guiding
Pin 84；
The middle section of secondary piston bar 6 connects secondary piston 7；
Piston 9 after the rear end connection of piston rod 8 afterwards；
The rear end of secondary piston bar 6 is inserted into rear piston rod 8, and two the second helicla flutes 83 are offered on rear piston rod 8, the
Both ends are inserted into the second helicla flute 83 after two guide pins 84 pass through secondary piston bar 6；
When the axial freedom of current piston rod 6 is limited, secondary piston bar 6 is rotated along the second helicla flute 83.
Further, circumferential locating part includes straight-line groove 44 and pin shaft 82, and straight-line groove 44 is provided with the inner wall of intermediate end cover 4
On, pin shaft 82 is arranged on the outer wall of rear piston rod 8.
Further, the front end of secondary piston bar 6 stretches out drive end bearing bracket 3 and is equipped with compact heap 10.
The stretching of embodiment two rotatably compresses the course of work of cylinder are as follows: stretches out --- rotation --- compression --- time
Stretch --- revolution --- reset.
Specifically include following state:
Initial bit: as shown in figure 12, rear piston 9 is located at the bottom surface of rear cylinder barrel 2, and the second guide pin 84 is located at the second helicla flute
83 top, secondary piston 7 are located at the middle position of preceding cylinder barrel 1.
It stretches out position: as shown in figure 13, stretching out the first stomata 31 and intermediate end cover that process is the drive end bearing bracket 3 in initial position
4 the second stomata 41 and the equal stuffiness of third stomata 42, the 4th stomata 51 ventilation of rear end cap 5, due to the second guide pin 84
In the top on the top of the second helicla flute 83, rear piston rod 8 drives the second guide pin 84 to move upwards, to drive secondary piston bar
6, secondary piston 7, compact heap 10 move axially upward together, until front air cylinder (i.e. secondary piston 7) stroke terminates, at this time before cylinder
It is similarly in stroke end position, the upper surface of secondary piston 7 is contacted with drive end bearing bracket 3.
Position is rotated, as shown in figure 14, stretching rotatably compresses after cylinder stretches out in place, and rotary course is, and the of intermediate end cover 4
The ventilation of two stomatas 41, for limiting the axial freedom of secondary piston bar 6, connects the upper surface of secondary piston 7 with drive end bearing bracket 3 always
Touching.Then, the 4th stomata 51 ventilation of rear end cap 5, the second helicla flute 83 of rear piston rod 8 push the second guide pin 84 it is opposite to
Lower movement, the axial freedom due to secondary piston bar 6 are limited, under the action of the second guide pin 84 and the second helicla flute 83 around
Axis rotation, drives compact heap 10 to realize turning effort.At the end of turning effort, the second guide pin 84 is located at the second helicla flute 83
The stroke of bottom end, the second guide pin 84 terminates.At this point, secondary piston 7 and rear piston 9 are in the position that up stroke terminates.
Position is compressed, as shown in figure 15, stretching rotatably compresses after cylinder is rotated in place, and realizes compression movement, compaction process is
Second stomata 41 of intermediate end cover 4 stops gas supply, and the third stomata 42 of intermediate end cover 4 continues to supply.Piston 9 is in gas pressure afterwards
Under, piston rod 8 moves downward after drive, since the second guide pin 84 is located at the bottom end of the second helicla flute 83, piston rod 8 after institute
The compact heap 10 of secondary piston bar 6 and its end can be driven to transport downwardly together by the second helicla flute 83 and the second guide pin 84
It is dynamic, realize compression movement.The third stomata 42 for being always maintained at intermediate end cover 4 is ventilated, and other stomata stuffiness are, it can be achieved that continue
Compression.
Hui Shenwei, as shown in figure 16, after the completion of stretching rotatably compresses cylinder-pressing work, returning and extending through journey is intermediate end cover 4
Third stomata 42 stop gas supply, the first stomata 42 of intermediate end cover 4 starts to ventilate, remaining stomata stuffiness.Secondary piston 7 is in
Between end cap 4 the second stomata 41 gas pressure under the action of drive secondary piston bar 6 move upwards, due to the second guide pin 84
In the bottom end of the second guide pin 84, so piston rod 8 is transported upwards together after secondary piston bar 6 can be driven by the second guide pin 84
It is dynamic, and its own is not rotated, until 7 stroke end position of secondary piston, the stroke of rear piston 9 also terminates at this time.
Position is turned round, as shown in figure 17, after stretching rotary cylinder time reaches position, turning course is the second gas of intermediate end cover 4
Hole 41 keeps ventilation, limits the axial freedom of secondary piston axis 6, the third stomata 42 of intermediate end cover 4, other stomata stuffiness.
Piston 9 moves downward under the action of the air pressure of third stomata 42 afterwards, and secondary piston bar 6 drives the second guide pin 84 along the second guiding
84 relative upward movement of pin, the axial freedom due to secondary piston bar 6 are limited, in the second guide pin 84 and the second guide pin 84
Interaction under, secondary piston bar 6 is pivoted, and is influenced by the hand of spiral of the second guide pin 84, secondary piston bar 6 can only return
Turn, so that compact heap 10 be driven to realize gyroscopic action together.Secondary piston 7 is in the end of upward stroke after revolution in place, and first
Guide pin 62 returns to the top of the first helicla flute 61, and rear piston 9 is in the middle section of rear cylinder barrel 2.
It resets, as shown in figure 18, reseting procedure is the second stomata 41 of intermediate end cover 4 and the 4th stomata 51 of rear end cap 5
Ventilation is kept, the first stomata 31 of drive end bearing bracket 3 is ventilated, then the second stomata 41 of middle cylinders 4 and the 4th stomata of rear end cap 5
51 die simultaneously, realize that secondary piston 7 drives secondary piston bar 6 and rear piston rod 8 to move downward simultaneously, after exhaust casing stroke,
First stomata 31 of drive end bearing bracket 3 is died, and is stretched out rotary cylinder and is resetted completion.
Embodiment three:
It is the cross-sectional view of the utility model embodiment three referring to Figure 19.
What is different from the first embodiment is that spiral locating part includes third helicla flute 85 and third guide pin 86；
Piston 9 after the rear end connection of secondary piston bar 6；
The front end of piston rod 8 connects secondary piston 7 afterwards；
Secondary piston bar 6 passes through secondary piston 7 and rear piston rod 8, offers two third helicla flutes 85 on rear piston rod 8, the
Both ends are inserted into third helicla flute 85 after three guide pins 86 pass through secondary piston bar 6；
When the axial freedom of current piston rod 6 is limited, secondary piston bar 6 is rotated along third helicla flute 85.
Further, circumferential locating part includes prismatic hole and prismatic column, and the inner wall of intermediate end cover 4 forms prismatic hole, rear living
The outer wall of stopper rod 8 forms prismatic column, and prismatic column is inserted into prismatic hole.
Embodiment three can only be axially moveable by the cooperation of prismatic column and prismatic hole come piston rod 8 after limiting, and cannot
Rotation, guarantees the control of accurate angle of revolution.
Above-described is only the principles of the present invention and preferred embodiment.It should be pointed out that for the general of this field
For logical technical staff, on the basis of the utility model principle, several other modifications can also be made, also should be regarded as practical
Novel protection scope.
Claims (8)
1. a kind of stretching rotatably compresses cylinder, including preceding cylinder barrel, rear cylinder barrel, drive end bearing bracket, intermediate end cover, rear end cap, secondary piston bar,
Secondary piston, rear piston rod and rear piston；
The drive end bearing bracket is mounted on the front end of the preceding cylinder barrel, and the intermediate end cover is mounted on the preceding cylinder barrel and the rear cylinder barrel
Between, the rear end cap is mounted on the rear end of the rear cylinder barrel；
The secondary piston and at least partly described secondary piston bar are located in the preceding cylinder barrel；
Piston and at least partly described rear piston rod are located in the rear cylinder barrel after described；
The drive end bearing bracket is equipped with the first stomata, and first stomatal action is in the upper surface of the secondary piston；
The intermediate end cover is equipped with the second stomata and third stomata, following table of second stomatal action in the secondary piston
Face, the upper surface of third stomatal action piston after described；
The rear end cap is equipped with the 4th stomata, the lower surface of the 4th stomatal action piston after described；It is characterized in that,
By spiral locating part come plug connection between the secondary piston bar and the rear piston rod, and the secondary piston bar is used
In elastic and be rotated about axis；
Piston rod is equipped with circumferential locating part after described, and the rear piston rod is for elastic.
2. stretching according to claim 1 rotatably compresses cylinder, which is characterized in that the spiral locating part includes the first spiral shell
Spin slot and the first guide pin；
The rear end of the secondary piston bar connects the secondary piston；
Piston after the rear end connection of piston rod is described after described；
The front end of piston rod passes through the secondary piston after described, and is inserted into the secondary piston bar, opens on the secondary piston bar
Equipped with two first helicla flutes, both ends are inserted into first spiral after first guide pin passes through the rear piston rod
In slot；
When the axial freedom of the secondary piston bar is limited, the secondary piston bar is rotated along first helicla flute.
3. stretching according to claim 1 rotatably compresses cylinder, which is characterized in that the spiral locating part includes the second spiral shell
Spin slot and the second guide pin；
The middle section of the secondary piston bar connects the secondary piston；
Piston after the rear end connection of piston rod is described after described；
The rear end of the secondary piston bar is inserted into the rear piston rod, offers two second spiral shells on the rear piston rod
Spin slot, both ends are inserted into second helicla flute after second guide pin passes through the secondary piston bar；
When the axial freedom of the secondary piston bar is limited, the secondary piston bar is rotated along second helicla flute.
4. stretching according to claim 1 rotatably compresses cylinder, which is characterized in that the spiral locating part includes third spiral shell
Spin slot and third guide pin；
Piston after the rear end connection of the secondary piston bar is described；
The front end of piston rod connects the secondary piston after described；
The secondary piston bar passes through the secondary piston and the rear piston rod, offers two thirds on the rear piston rod
Helicla flute, both ends are inserted into the third helicla flute after the third guide pin passes through the secondary piston bar；
When the axial freedom of the secondary piston bar is limited, the secondary piston bar is rotated along the third helicla flute.
5. rotatably compressing cylinder according to the described in any item stretchings of claim 2-4, which is characterized in that the circumferential direction locating part packet
Straight-line groove and pin shaft are included, the straight-line groove is provided on the rear piston rod, and the pin shaft is arranged in the intermediate end cover
On wall.
6. rotatably compressing cylinder according to the described in any item stretchings of claim 2-4, which is characterized in that the circumferential direction locating part packet
Straight-line groove and pin shaft are included, the straight-line groove is provided on the inner wall of the intermediate end cover, pin shaft setting piston after described
On the outer wall of bar.
7. rotatably compressing cylinder according to the described in any item stretchings of claim 2-4, which is characterized in that the circumferential direction locating part packet
Prismatic hole and prismatic column are included, the inner wall of the intermediate end cover forms prismatic hole, and the outer wall of the rear piston rod forms prismatic column, institute
Prismatic column is stated to be inserted into the prismatic hole.
8. stretching according to claim 1-4 rotatably compresses cylinder, which is characterized in that before the secondary piston bar
End stretches out the drive end bearing bracket and is equipped with compact heap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820887519.XU CN208474231U (en) | 2018-06-08 | 2018-06-08 | Stretching rotatably compresses cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820887519.XU CN208474231U (en) | 2018-06-08 | 2018-06-08 | Stretching rotatably compresses cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208474231U true CN208474231U (en) | 2019-02-05 |
Family
ID=65216732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820887519.XU Active CN208474231U (en) | 2018-06-08 | 2018-06-08 | Stretching rotatably compresses cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208474231U (en) |
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2018
- 2018-06-08 CN CN201820887519.XU patent/CN208474231U/en active Active
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