CN204476915U - A kind of half-separation type swing cylinder - Google Patents
A kind of half-separation type swing cylinder Download PDFInfo
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- CN204476915U CN204476915U CN201420838813.3U CN201420838813U CN204476915U CN 204476915 U CN204476915 U CN 204476915U CN 201420838813 U CN201420838813 U CN 201420838813U CN 204476915 U CN204476915 U CN 204476915U
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- tooth bar
- swing cylinder
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Abstract
The utility model relates to a kind of half-separation type swing cylinder, comprises cylinder barrel, piston rod, piston, connecting rod, rack and pinion; Described piston rod, piston, connecting rod and tooth bar are all with being located in cylinder barrel inside, and described piston sleeve is located at piston rod one end and affixed with piston rod; Described tooth bar is located between piston and gear, and is connected with gears meshing.Described connecting rod one end is provided with the shaft shoulder and by the shaft shoulder and piston nested encryptions; The other end and described tooth bar affixed.The piston of a kind of half-separation type swing cylinder of the present utility model can two-way function, and the difficulty of processing of swing cylinder is low, greatly reduces cost of production.
Description
Technical field
The utility model relates to a kind of swing cylinder, particularly relates to the oscillating hydraulic cylinder that a kind of piston is partly separated with tooth bar.
Background technique
The principle of the oscillating motor of gear & rack structure is that oil hydraulic cylinder reciprocated through rack drives gear, changes into forward and reverse swing rotary of gear shaft, the thrust of linear actuator is changed into the output torque of gear shaft simultaneously.Moment of torsion production and transfer realizes by a piston be positioned at the live axle lateral attitude of tooth bar.The swing cylinder of gear & rack structure, mainly contains fixed swing cylinder and separated type swing cylinder two kinds.
The piston of fixed swing cylinder is fixedly connected with tooth bar, can not relatively rotate, can not axial separation.Therefore, the concentricity requirement of fixed swing cylinder to cylinder barrel and piston is very high, and its difficulty of processing is large, cost is high.
In order to solve the defect of above-mentioned fixed swing cylinder, application number be 200920096087 utility model patent " a kind of gear rack oscillating oil cylinder " provide a kind of separated type swing cylinder, refer to Fig. 1, it is the structural representation of a kind of gear rack oscillating oil cylinder of this documents.A kind of gear rack oscillating oil cylinder, be made up of cylinder barrel 06, cylinder bottom 05, left piston 011, right piston 09, tooth bar 03 and the swing member 01 that is provided with gear 04, cylinder barrel 06 two ends encapsulate by cylinder bottom 05, the all coaxial slide in opposition sealing of left piston 011, right piston 09 is arranged between two cylinder bottoms 05 in cylinder barrel 06, and tooth bar 03 is coaxially arranged between left piston 011, right piston 09 and its both sides end face carries out end face with left piston 011, right piston 09 respectively coordinates.
Said gear tooth bar oscillating oil cylinder is separated type swing cylinder, which solves the defect of fixed swing cylinder, but because its piston is separated completely with tooth bar, piston can only promote tooth bar, therefore can only be single swing cylinder.
Model utility content
The purpose of this utility model is the shortcoming and defect in order to solve above-mentioned prior art, provides a kind of piston can two-way function and the low half-separation type swing cylinder of difficulty of processing.
The utility model is achieved through the following technical solutions: a kind of half-separation type swing cylinder, comprises cylinder barrel, piston rod, piston, connecting rod, rack and pinion; Described piston rod, piston, connecting rod and tooth bar are all with being located in cylinder barrel inside, and described piston sleeve is located at piston rod one end and affixed with piston rod, and the inwall of the outer wall of piston and cylinder barrel is fitted; The other end of described piston rod exposes to cylinder barrel and outside equipment connection; Described connecting rod one end is provided with the shaft shoulder and by the shaft shoulder and piston nested encryptions; The other end and described tooth bar affixed; Described tooth bar is located between piston and gear, and is connected with gears meshing.
Compared to prior art, a kind of half-separation type swing cylinder of the present utility model, solve the drawback of fixed swing cylinder and separated type swing cylinder, because piston and tooth bar are in half separated state, the two axially can not be separated, and piston can racks turn relatively, therefore piston can two-way function, thus makes this half-separation type swing cylinder realize double-action.Meanwhile, the concentricity requirement of half-separation type swing cylinder of the present utility model to cylinder barrel and piston is not high, and difficulty of processing is low, greatly reduces cost of production.
Further, a seal ring is provided with between described piston rod and connecting rod.This arranges and hydraulic oil can be prevented from cylinder barrel internal leakage to space, tooth bar place.
Further, described internal piston matches with the shaft shoulder of connecting rod, and by this shaft shoulder and connecting rod nested encryptions.
Further, described piston is connected with piston rod thread.
Further, described connecting rod is threaded with tooth bar.
Further, described seal ring outside is provided with Sealing.
Further, described connecting rod is provided with multiple location shaft shoulder, locates when facilitating connecting rod to install.
In order to understand better and implement, describe the utility model in detail below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the gear rack oscillating oil cylinder of prior art
Fig. 2 is the part sectioned view of half-separation type swing cylinder of the present utility model.
Embodiment
Refer to Fig. 2, it is the part sectioned view of half-separation type swing cylinder of the present utility model.This part sectioned view is the left-half part sectioned view of half-separation type swing cylinder, right half part and its specular.Half-separation type swing cylinder of the present utility model, comprises cylinder barrel 1, piston rod 2, piston 3, connecting rod 4, tooth bar 5 and gear 6.Described piston rod 2, piston 3, connecting rod 4 and tooth bar 5 are all inner with being located in cylinder barrel 1.Described piston 3 be sheathed on piston rod 2 one end and by screw thread and piston rod 2 affixed, and the inwall of the outer wall of piston 3 and cylinder barrel is fitted.The other end of described piston rod 2 exposes to cylinder barrel 1 and outside equipment connection.One end of described connecting rod 4 to be inserted in described piston 3 and is rotatably connected with it, and the other end of this connecting rod 4 is fixedly connected with tooth bar 5.Described tooth bar 5 is located between piston 3 and gear 6, and is connected with a joggle with gear 6.Under the effect of hydraulic oil, piston 3 can promote tooth bar 5 and move right thus the rotation of driven gear, also can drive piston rod 2 bidirectional-movement to the left or to the right.
Particularly, described connecting rod 4 one end is provided with the shaft shoulder 41, and matching with this shaft shoulder 41 in described piston 3 inside, described connecting rod 4 can be connected with piston 3 nested inside by the shaft shoulder 41, thus piston 3 can be rotated relative to connecting rod 4; It is affixed that connecting rod 4 the other end and described tooth bar 5 pass through screw thread 72; Described piston 3 is conflicted with tooth bar 5 and is connected, thus piston 3 can promote tooth bar 5 moving linearly.Be provided with a seal ring 8 between described piston rod 2 and connecting rod 4, and sealing ring 8 outside is provided with Sealing 9, can effectively prevents hydraulic oil to be leaked to space, tooth bar 5 place in cylinder barrel 2.Described connecting rod 4 is also provided with multiple location shaft shoulder, matches with piston 2 and tooth bar 5, is convenient to the installation location of connecting rod 4.
During half-separation type swing cylinder work described in the utility model, under the effect of hydraulic oil, piston 3 can promote tooth bar 5 and move right, and also can drive piston rod 2 bidirectional-movement to the left or to the right.Particularly, because piston 3 can rotate relative to tooth bar 5, but the two axially can not be separated, and therefore axially piston 3 can promote tooth bar 5 moving linearly, thus drive and tooth bar 5 meshed gears 6 rotate; And can rotate relative to connecting rod 4 and tooth bar 5 due to piston and piston rod, piston also can drive piston rod 2 bidirectional-movement to the left or to the right easily, is convenient to piston rod 2 and drives connected external equipment straight line motion or rotation.By the special Placement of this piston 3 and connecting rod 4 and tooth bar 5, this half-separation type swing cylinder realizes double-action, both can, by rack drives pinion rotation output torque, also external equipment can be driven to move by piston rod.
Compared to prior art, a kind of half-separation type swing cylinder of the present utility model, solve the drawback of fixed swing cylinder and separated type swing cylinder, because piston 3 and tooth bar 5 are in half separated state, the two axially can not be separated, and piston 3 can rotate relative to tooth bar 5, therefore piston can two-way function, thus makes this half-separation type swing cylinder realize double-action.Meanwhile, because cylinder barrel and the piston of half-separation type swing cylinder of the present utility model are that split is connected, therefore not high to the concentricity requirement of the two, difficulty of processing is low, greatly reduces cost of production.
The utility model is not limited to above-mentioned mode of execution, if do not depart from spirit and scope of the present utility model to various change of the present utility model or distortion, if these are changed and distortion belongs within claim of the present utility model and equivalent technologies scope, then the utility model is also intended to comprise these changes and distortion.
Claims (6)
1. a half-separation type swing cylinder, is characterized in that: comprise cylinder barrel, piston rod, piston, connecting rod, rack and pinion; Described piston rod, piston, connecting rod and tooth bar are all with being located in cylinder barrel inside, and described piston sleeve is located at piston rod one end and affixed with piston rod, and the inwall of the outer wall of piston and cylinder barrel is fitted; The other end of described piston rod exposes to cylinder barrel and outside equipment connection; Described connecting rod one end is provided with the shaft shoulder and by the shaft shoulder and piston nested encryptions; The other end and described tooth bar affixed; Described tooth bar is located between piston and gear, and is connected with gears meshing.
2. half-separation type swing cylinder according to claim 1, is characterized in that: be provided with a seal ring between described piston rod and connecting rod.
3. half-separation type swing cylinder according to claim 2, is characterized in that: described internal piston matches with the shaft shoulder of connecting rod, and by this shaft shoulder and connecting rod nested encryptions.
4. half-separation type swing cylinder according to claim 3, is characterized in that: described piston is connected with piston rod thread.
5. half-separation type swing cylinder according to claim 4, is characterized in that: described connecting rod is threaded with tooth bar.
6. the half-separation type swing cylinder according to any one of claim 2-5, is characterized in that: described seal ring outside is provided with Sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420838813.3U CN204476915U (en) | 2014-12-23 | 2014-12-23 | A kind of half-separation type swing cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420838813.3U CN204476915U (en) | 2014-12-23 | 2014-12-23 | A kind of half-separation type swing cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN204476915U true CN204476915U (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420838813.3U Active CN204476915U (en) | 2014-12-23 | 2014-12-23 | A kind of half-separation type swing cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314088A (en) * | 2017-07-11 | 2017-11-03 | 宜昌长机科技有限责任公司 | A kind of variable gear ratio positions rack ancillary equipment and operating method without sideshake |
-
2014
- 2014-12-23 CN CN201420838813.3U patent/CN204476915U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314088A (en) * | 2017-07-11 | 2017-11-03 | 宜昌长机科技有限责任公司 | A kind of variable gear ratio positions rack ancillary equipment and operating method without sideshake |
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