CN204828536U - Liftout rotary device - Google Patents
Liftout rotary device Download PDFInfo
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- CN204828536U CN204828536U CN201520553537.0U CN201520553537U CN204828536U CN 204828536 U CN204828536 U CN 204828536U CN 201520553537 U CN201520553537 U CN 201520553537U CN 204828536 U CN204828536 U CN 204828536U
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- liftout
- ejector beam
- guide sleeve
- follower
- drive mechanism
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Abstract
The utility model discloses a liftout rotary device belongs to hydraulic pressure technical field, has solved the technical problem that the structure is complicated, the maintenance is inconvenient in the current pneumatic cylinder, the utility model discloses a liftout rotary device, including base, ejector beam, liftout jar and rotary driving mechanism, rotary driving mechanism installs on the base, the ejector beam is connected on rotary driving mechanism and by rotary driving mechanism drive rotation, the liftout jar lies in the base below and is used for driving the ejector beam and rises. The embodiment of the utility model provides a mainly be applied to on the hydraulic equipment.
Description
[technical field]
The utility model relates to a kind of liftout whirligig, belongs to technical field of hydraulic pressure.
[background technique]
Oil hydraulic cylinder is hydraulic actuator hydraulic energy being changed into mechanical energy, when realizing to-and-fro motion with it, can remove speed reducer from, and not have drive gap, stable movement, be widely used in the hydraulic system of various machinery.Conventional cylinder comprises cylinder body, piston and piston rod, cylinder body has oil inlet and outlet, by the turnover of hydraulic oil, realize the motion of piston and piston rod, various controlling functions is realized again by external member, the motion of this hydraulic rod is linear type motion, and the external member driven is also in company with doing straight line motion.
In actual production process, the many external members driven by oil hydraulic cylinder not only need rectilinear path, also need to rotate simultaneously, but oil hydraulic cylinder itself can not realize spinning movement, in order to meet the needs of actual production, at present, the method generally adopted is the spinning movement realizing oil hydraulic cylinder by installing bearing or other other subsidiary bodies between piston and piston rod.Because subsidiary body is placed in oil hydraulic cylinder, there is sealing difference in oil hydraulic cylinder, complex structure, the shortcoming such as the higher and maintenance overhaul of cost is inconvenient.
[model utility content]
Problem to be solved in the utility model is just to provide a kind of liftout whirligig, and structure is simple, is convenient to maintenance.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of liftout whirligig, comprise pedestal, ejector beam, liftout cylinder and rotary drive mechanism, described rotary drive mechanism is arranged on pedestal, described ejector beam to be connected on rotary drive mechanism and to be driven by rotary drive mechanism and rotates, and described liftout cylinder to be positioned at below pedestal and for driving ejector beam to rise.
Liftout whirligig of the present utility model, come being placed on an in-oil cylinder liftout at present and rotating two organizational separations, rotary drive mechanism wherein for driving ejector beam to rotate is arranged on pedestal, and the liftout cylinder for driving ejector beam to rise is arranged on the below of pedestal, liftout cylinder and rotary drive mechanism separate and independent control, the benefit of such design, one: the inner space of liftout cylinder is limited, the rotary drive mechanism being used for driving ejector beam to rotate is separated independent installation, enormously simplify liftout cylinder structure, reduce its design cost, and do not need to change the original internal structure of liftout cylinder, as increased the subsidiary bodies such as bearing, thus avoid the problem causing sealing difference because increasing the subsidiary bodies such as bearing, its two, the rotary drive mechanism of separately design, by the restriction in liftout cylinder interior space, can carry out Expanding design according to actual requirement, provides wider moment of torsion to export, meets higher technological requirement, its three, liftout cylinder is separated with rotary drive mechanism, the two work time can not mutually interfere, good reliability, and convenient for maintaining.
First specific embodiments: described rotary drive mechanism comprises motor and synchronizing wheel assembly, described synchronizing wheel assembly comprises driving wheel, follower and belt, described driving wheel is driven by motor and rotates, and described follower is arranged on ejector beam, and described belt is connected between driving wheel and follower.The synchronizing wheel kind of drive combines current belt transmission, Chain conveyer, gear transmission advantage separately, good reliability.
Second specific embodiments: described rotary drive mechanism also comprises speed reducer, described speed reducer has input shaft and output shaft, and described input shaft is connected with the motor shaft of motor, and described follower is arranged on the output shaft of speed reducer.Reduce rotating speed by speed reducer drive, increase moment of torsion and export.
3rd specific embodiments: described rotary drive mechanism also comprises guide sleeve, described guide sleeve to be enclosed within ejector beam and ejector beam can be driven to rotate, and described follower is connected by the first keyway arrangements with guide sleeve, or described follower and guide sleeve one-body molded.Set up guide sleeve and can improve stability in ejector beam lifting process, follower and guide sleeve are divided body formed and are connected by the first keyway arrangements, are convenient to part manufacture; Follower and the one-body molded intensity of guide sleeve good, reduce intermediate transmission link, moment of torsion output accuracy is high, and two schemes can be used on a selective basis according to actual requirement.
4th specific embodiments: described guide sleeve is connected by the second keyway arrangements with between ejector beam.Design like this, while realizing moment of torsion transmission, does not affect the jacking campaign of ejector beam.
5th specific embodiments: described pedestal comprises bearing table, pressing plate and by the support of bearing table to downward-extension, described pressing plate is fixedly connected on support, to be fitted on pedestal by described guide sleeve, between described guide sleeve upper end and pedestal and/or between described guide sleeve lower end and pressing plate, be provided with bearing.Assembling like this, the bearing capacity of whole liftout whirligig can be improved, first design bearing reduces the friction factor in ejector beam movement process, and ensure its rotating accuracy, moreover, compare the scheme designing bearing at present in oil cylinder, design bearing on the pedestal of outside, is convenient to assembling and regular maintenance by this preferred version.
6th specific embodiments: described liftout cylinder comprises cylinder body and drives flexible piston rod by cylinder body, described piston-rod end is fixedly connected with fore-set, sheath and elastic element described fore-set be equipped with, described piston rod is by fore-set jacking ejector beam, and described sheath offsets with ejector beam elasticity under elastic element effect.Design like this, while fore-set jacking ejector beam, reduces ejector beam to the rotating friction force of piston rod.
7th specific embodiments: described piston-rod end is provided with mounting hole, described fore-set and sheath are assembled to mounting hole.Design like this, avoids fore-set, sheath and elastic element to be subject to the impact of external environment.
8th specific embodiments: described piston rod is provided with thrust-bearing, described elastic element is clamped between sheath and thrust-bearing.Thrust-bearing can bear axial force and the rotation friction of ejector beam applying.
These features of the present utility model and advantage will embodiment below, exposure detailed in accompanying drawing.
[accompanying drawing explanation]
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 is the structural representation of liftout whirligig in the utility model preferred embodiment;
Fig. 2 is the structural representation of guide sleeve in the utility model preferred embodiment;
Fig. 3 is the enlarged view of A in Fig. 1 in the utility model preferred embodiment.
[embodiment]
The technological scheme of accompanying drawing to the utility model embodiment below in conjunction with the utility model embodiment is explained and illustrated, but following embodiment is only preferred embodiment of the present utility model, and not all.Based on the embodiment in mode of execution, those skilled in the art under the prerequisite not making creative work obtain other embodiments, all belong to protection domain of the present utility model.
As shown in Figure 1-2, the utility model liftout whirligig, comprises pedestal 3, ejector beam 4, liftout cylinder (its overall structure not shown) and rotary drive mechanism.Ejector beam 4 is connected with rotary drive mechanism, and rotating machinery to be arranged on pedestal 3 and for driving ejector beam 4 to rotate, and liftout cylinder to be positioned at below pedestal 3 and for driving ejector beam 4 to rise.
Rotary drive mechanism comprises motor 11, speed reducer 12, synchronizing wheel assembly and guide sleeve 16.In the present embodiment, motor 11 adopts actuating motor, and actuating motor does 360 ° of rotations by control turning collar numerical control ejector beam 4, the rotation angle of ejector beam 4 can be made more accurate simultaneously; Synchronizing wheel assembly comprises driving wheel 13, belt 14 and follower 15, and driving wheel 13 drives follower 15 to rotate by belt 14; The output shaft of motor 11 is connected with the input shaft of speed reducer 12, and the output shaft of speed reducer 12 is connected with driving wheel 13, and speed reducer 12, for reducing the power that runs up of motor 11, also improves Driving Torque simultaneously; In the present embodiment follower 15 and guide sleeve 16 adopts divide body formed, be convenient to maintenance and the replacing in later stage, guide sleeve 16 is driven to synchronously rotate in order to make follower 15, the first keyway arrangements 17 is provided with between follower 15 and guide sleeve 16, first keyway arrangements 17 comprises outside keyway, flat key and interior spline, outside keyway is arranged on the inwall of follower 15, interior spline is arranged on the outer wall of guide sleeve 16, flat key is positioned at the cavity of outside keyway and interior spline formation, and is fixedly connected with the outer wall of guide sleeve 16.Guide sleeve 16 is sleeved on the outside of ejector beam 4, the second keyway arrangements 18 is provided with between guide sleeve 16 and ejector beam 4, second keyway arrangements 18 is similar with keyway arrangements of the prior art, guide sleeve 16 drives ejector beam 4 to synchronously rotate by the second keyway arrangements 18, in addition, ejector beam 4 axially moves in guide sleeve 16 inside by the second keyway arrangements 18.
In other embodiments of the present utility model, follower and guide sleeve can be one-body molded, the one-body molded structural strength improving follower and guide sleeve, and reduce intermediate transmission link, moment of torsion output accuracy is higher; In addition, in other embodiments, except the first keyway arrangements, when the hole of follower is irregularly-shaped hole, such as: square hole, when the partial cross section of guide sleeve connection follower is square, the object that follower drives guide sleeve to rotate can also be reached.
Due to guide sleeve 16 having interior spline, the structural strength of guide sleeve 16 can be had influence on, on the outer wall of guide sleeve 16, be provided with the integrated annular shaft shoulder 160 for this reason, the shaft shoulder 160 has upper shaft shoulder face 161, middle shaft shoulder face 162 and lower shaft shoulder face 163, and interior spline is arranged between shaft shoulder face 161 and middle shaft shoulder face 162.Owing between follower 15 and guide sleeve 16 being the fit system of keyway, meeting slide downward after assembling to prevent follower 15, need follower 15 to be placed on middle shaft shoulder face 162 and make to offset with middle shaft shoulder face 162 bottom it above, middle shaft shoulder face 162 is for supporting follower 15.
Pedestal 3 comprises bearing table 31, support 32 and pressing plate 33, and bearing table 31 is provided with the first step hole passed for ejector beam 4, and the top card of ejector beam 4 is in first step hole, and first step hole can prevent ejector beam 4 from departing from from the below of bearing table 31; One end of support 32 is fixedly connected with bearing table 31, the side of support 32 is also connected with mounting plate, speed reducer 12 and driving wheel 13 are bolted to connection on a mounting board, pressing plate 33 is welded in support 32, the bottom of pressing plate 33 has been connected by screw base plate 55, and base plate 55 is sleeved on the lower end of guide sleeve 16, in order to ensure the sealing between base plate 55 and guide sleeve 16, prevent oil leakage, between base plate 55 and guide sleeve 16, be provided with seal ring.
In order to reduce the wearing and tearing of the generation of guide sleeve 16 in rotary course, and ensure the rotating accuracy of guide sleeve 16, upper bearing (metal) 51 is socketed with in the upper end of guide sleeve 16, upper bearing (metal) 51 embeds in bearing table 31, lower end is socketed with lower bearing 52, and lower bearing 52 embeds in the installation cavity of base plate 55 and pressing plate 33 formation; In order to prevent the whereabouts of upper bearing (metal) 51, between upper bearing (metal) 51 and follower 15, be provided with the Upper gasket 53 of ring-type.In order to be fixed on by guide sleeve 16 between bearing table 31 and base plate 55 and guide sleeve 16 can not slide downward, be provided with the lower levelling plate 54 of ring-type between lower bearing 52 and lower shaft shoulder face 163, lower levelling plate 54 can prevent guide sleeve 16 slide downward.
Liftout cylinder comprises cylinder body and piston rod 2, as shown in Figure 3, the end of piston rod 2 is provided with mounting hole 20, fore-set 22 is connected with at mounting hole 20 internal fixtion, the outer cover of fore-set 22 is equipped with elastic element 21, movable sheath 23 is set with at the top of fore-set 22, the second step hole passed for fore-set 22 is provided with on the top of sheath 23, the top of fore-set 22 is stuck in second step hole, second step hole can prevent sheath 23 from departing from from the top of fore-set 22, and elastic element 21 is between the outer wall and the inwall of sheath 23 of fore-set 22; After assembling, the top of sheath 23 is higher than the top of fore-set 22, when piston rod 2 rises and offsets with the bottom of ejector beam 4, the downward active force that ejector beam 4 pairs of sheaths 23 apply, due to the effect of elastic element 21, sheath 23 top drop to the same plane at fore-set 22 top in and offset with the bottom resilient of ejector beam 4, fore-set 22 is for jacking ejector beam 4.
When piston rod 2 jacking ejector beam 4, ejector beam 4 can be applied to piston rod 2 axial pressure, in order to reduce axial pressure, in the bottom of mounting hole 20, thrust-bearing 24 is installed, the inwall of mounting hole 20 is provided with the limiting stopper offseted with thrust-bearing 24 upper-end surface, limiting stopper is uniformly distributed along the circumferencial direction of hole wall, and limiting stopper prevents thrust-bearing 24 from departing from the bottom of mounting hole 20.Elastic element 21 is clamped between sheath 23 and thrust-bearing 24, and thrust-bearing 24 can bear axial pressure, reduces the stressed of piston rod 2, increases the service life.In addition, in process of production, ejector beam 4 also can rotate, and produces rotation friction between the bottom of ejector beam 4 and sheath 23, and thrust-bearing 24 is also by rotating the rotation friction reduced between ejector beam 4 and sheath 23.
Compared with the end jacking ejector beam 4 utilizing whole piston rod 2, the present embodiment, by reducing the area of contact of the terminal surface of piston rod 2 and the bottom of ejector beam 4, effectively decreases rotation friction; In addition, the Split type structure design of piston rod 2 and fore-set 22, sheath 23, is conducive to maintenance and the replacing in later stage.The present embodiment elastic element 21 is preferably disc spring, and disc spring rigidity is large, and buffer capacity is strong, can bear large load, and be suitable for the little occasion of axial space requirement with small deformation.
The utility model embodiment is applied to hydraulic equipment, as end socket stretching pressing hydraulic machine.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto, is familiar with this those skilled in the art and should be understood that the content that the utility model includes but not limited to accompanying drawing and describes in embodiment above.Any amendment not departing from function and structure principle of the present utility model all will comprise within the scope of the appended claims.
Claims (9)
1. a liftout whirligig, it is characterized in that: comprise pedestal, ejector beam, liftout cylinder and rotary drive mechanism, described rotary drive mechanism is arranged on pedestal, described ejector beam to be connected on rotary drive mechanism and to be driven by rotary drive mechanism and rotates, and described liftout cylinder to be positioned at below pedestal and for driving ejector beam to rise.
2. liftout whirligig according to claim 1, it is characterized in that: described rotary drive mechanism comprises motor and synchronizing wheel assembly, described synchronizing wheel assembly comprises driving wheel, follower and belt, described driving wheel is driven by motor and rotates, described follower is arranged on ejector beam, and described belt is connected between driving wheel and follower.
3. liftout whirligig according to claim 2, it is characterized in that: described rotary drive mechanism also comprises speed reducer, described speed reducer has input shaft and output shaft, and described input shaft is connected with the motor shaft of motor, and described follower is arranged on the output shaft of speed reducer.
4. liftout whirligig according to claim 2, it is characterized in that: described rotary drive mechanism also comprises guide sleeve, described guide sleeve is enclosed within ejector beam and also ejector beam can be driven to rotate, described follower is connected by the first keyway arrangements with guide sleeve, or described follower and guide sleeve one-body molded.
5. liftout whirligig according to claim 4, is characterized in that: described guide sleeve is connected by the second keyway arrangements with between ejector beam.
6. liftout whirligig according to claim 4, it is characterized in that: described pedestal comprises bearing table, pressing plate and by the support of bearing table to downward-extension, described pressing plate is fixedly connected on support, to be fitted on pedestal by described guide sleeve, between described guide sleeve upper end and pedestal and/or between described guide sleeve lower end and pressing plate, be provided with bearing.
7. liftout whirligig according to claim 1, it is characterized in that: described liftout cylinder comprises cylinder body and drives flexible piston rod by cylinder body, described piston-rod end is fixedly connected with fore-set, sheath and elastic element described fore-set be equipped with, described piston rod is by fore-set jacking ejector beam, and described sheath offsets with ejector beam elasticity under elastic element effect.
8. liftout whirligig according to claim 7, it is characterized in that: described piston-rod end is provided with mounting hole, described fore-set and sheath are assembled to mounting hole.
9. liftout whirligig according to claim 8, it is characterized in that: described piston rod is provided with thrust-bearing, described elastic element is clamped between sheath and thrust-bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520553537.0U CN204828536U (en) | 2015-07-28 | 2015-07-28 | Liftout rotary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520553537.0U CN204828536U (en) | 2015-07-28 | 2015-07-28 | Liftout rotary device |
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| Publication Number | Publication Date |
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| CN204828536U true CN204828536U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520553537.0U Active CN204828536U (en) | 2015-07-28 | 2015-07-28 | Liftout rotary device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003615A (en) * | 2015-07-28 | 2015-10-28 | 湖州机床厂有限公司 | Ejection rotating device |
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2015
- 2015-07-28 CN CN201520553537.0U patent/CN204828536U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003615A (en) * | 2015-07-28 | 2015-10-28 | 湖州机床厂有限公司 | Ejection rotating device |
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