CN204284079U - A kind of hydraulic cushion oil cylinder for high-altitude operation vehicle - Google Patents
A kind of hydraulic cushion oil cylinder for high-altitude operation vehicle Download PDFInfo
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- CN204284079U CN204284079U CN201420760161.6U CN201420760161U CN204284079U CN 204284079 U CN204284079 U CN 204284079U CN 201420760161 U CN201420760161 U CN 201420760161U CN 204284079 U CN204284079 U CN 204284079U
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Abstract
The utility model relates to a kind of hydraulic cushion oil cylinder for high-altitude operation vehicle, comprises cylinder barrel, is arranged on the piston rod of this cylinder barrel inside, cushion collar and buffering ring and is located at the piston of this piston rod one end; Be oil pocket between described piston rod periphery and cylinder barrel inwall; Also comprise a pipeline assembly; Described pipeline assembly comprises the first oil pipe, the second oil pipe and hydraulic two-way lock, and described first oil pipe is connected with the opening of hydraulic two-way lock respectively with one end of the second oil pipe, and the other end of described first oil pipe and the second oil pipe is communicated in described oil pocket respectively; The cylinder bottom of described hydraulic jack is provided with an one-way valve and a throttle valve; The cylinder head of described hydraulic jack is provided with an one-way valve and a throttle valve.
Description
Technical field
The utility model relates to a kind of hydraulic cushion oil cylinder, mainly a kind of hydraulic cushion oil cylinder for high-altitude operation vehicle, due to the effect of buffering, avoiding staff's hydraulic jack impact when stretching out and be retracted into two ends when high-lift operation, reaching the object of smooth working.
Background technique
High-altitude operation vehicle realizes staff in high-lift operation work by upper arm and underarm, and wherein there is the jiggly problem of action at maximum operation At The Height and maximum operation amplitude place.
Refer to Fig. 1, it is the operation schematic diagram of the upper underarm of existing high-altitude operation vehicle.Because underarm carries out angle by oil cylinder on high-altitude operation vehicle.Wherein, jib is connected dumpling point with turntable be O point, and amplitude oil cylinder is connected dumpling point with turntable be A point, and jib is connected dumpling point with amplitude oil cylinder be B point.Because the characteristic of tri-joint mechanism determines, the oil cylinder stroke corresponding when upper underarm small angle angle is larger, and corresponding oil cylinder stroke is shorter during wide-angle angle, therefore near maximum operation height (upper underarm is all near maximum elevation), the lifting stationarity of high-lift operation car bucket is poor, impact comparatively large when limit position stops action, Security extreme difference.
During maximum operation amplitude, (upper arm is level, underarm is in maximum elevation), same by underarm oil cylinder tri-joint mechanism properties influence, also exist and impact comparatively large, the jiggly problem of action, particularly underarm oil cylinder is by pulling force, add the pressure of impact force and hydraulic system, cylinder force is stressed far beyond theory, therefore special hazard.
For the problems referred to above, high-altitude operation vehicle uses cushion cylinder can increase the stationarity of high-altitude operation vehicle product, reduce to impact and improve product reliability.Cushion cylinder can only cushion at two ends, is generally used on personnel's operation and impact and heavy load product.
Further, in operating vehicle, the final position of each action needs to arrange restricting means.And the mode of existing general employing electrical control realizes, reliability is low, complex structure, impact is large, travelling comfort is poor.
Model utility content
The utility model is that the shortcoming overcoming prior art is with not enough, provides a kind of hydraulic cushion oil cylinder for high-altitude operation vehicle.
The utility model is realized by following technological scheme: a kind of hydraulic cushion oil cylinder for high-altitude operation vehicle, comprises cylinder barrel, is arranged on the piston that the piston rod of this cylinder barrel inside, cushion collar and buffering ring one are located at this piston rod one end; Be oil pocket between described piston rod periphery and cylinder barrel inwall;
Also comprise a pipeline assembly; Described pipeline assembly comprises the first oil pipe, the second oil pipe and hydraulic two-way lock, described first oil pipe is connected with the opening of hydraulic two-way lock respectively with one end of the second oil pipe, and the other end of described first oil pipe and the second oil pipe is communicated in the oil inlet and outlet of described hydraulic jack respectively;
The cylinder bottom of described hydraulic jack is provided with an one-way valve and a throttle valve; The cylinder head of described hydraulic jack is provided with an one-way valve and a throttle valve; When the piston rod of hydraulic jack is toward the direction motion of cylinder bottom, described cylinder bottom throttle valve is used for cushioning when running to cylinder bottom to piston rod according to regulating the size of oil circuit, and the one-way valve not oil-feed of cylinder bottom; Cylinder head one-way valve is opened repairing fast and is reached the effect that piston rod quick starting improves speed, and cylinder head throttle valve also can play repairing thus reach to carry out speed governing to piston rod;
When hydraulic jack piston rod toward cylinder head direction motion time, described cylinder head throttle valve according to regulate oil circuit size be used for right
Piston rod cushions when running to cylinder head, and the one-way valve not oil-feed of cylinder head; Cylinder bottom one-way valve is opened repairing fast and is reached
Piston rod quick starting improves the effect of speed, and cylinder bottom throttle valve oil circuit also can play repairing thus reach piston rod
Carry out speed governing.
Compared to prior art, the utility model is by the cylinder head on hydraulic jack and cylinder bottom position arrange one-way valve and throttle valve; One-way valve is used for the effect of speed governing and exhaust, and throttle valve is for regulating the effect of buffering; Thus the impact force reduced oil cylinder, strengthen stability.
As further improvement of the utility model, the end of described piston rod is provided with a buffering ring, and described buffering ring is positioned at the rear end of described piston; Described buffering ring is towards cylinder bottom.
As further improvement of the utility model, described buffering ring is connected by the end of screw thread with described piston rod; Described buffering ring is towards cylinder bottom.
As further improvement of the utility model, the fit tolerance gap of described buffering ring external diameter and cylinder bottom endoporus is between 0.025-0.045mm.
As further improvement of the utility model, described piston rod is provided with a cushion collar, and described cushion collar is positioned at the front end of piston; Described cushion collar is towards cylinder head.
As further improvement of the utility model, the fit tolerance gap of described cushion collar external diameter and cylinder head endoporus is between 0.025-0.045mm.
As further improvement of the utility model, be provided with O shape between described piston and piston rod and enclose.
As further improvement of the utility model, described cushion collar outer race is provided with floating bushing; Described cushion collar is towards cylinder head.
As further improvement of the utility model, described one-way valve comprises valve body, spool and valve core nut; Described spool is connected with valve body by valve core nut.
As further improvement of the utility model, described one-way valve also comprises a spool O shape circle and valve body O shape circle; Described valve body is provided with a circular groove, and described valve body O shape circle is arranged in this circular groove; The end of described spool is provided with a circular groove, and described spool O shape circle is arranged in this circular groove.
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 operation schematic diagram of the upper underarm of existing high-altitude operation vehicle.
Fig. 2 is the structural representation of cushion cylinder of the present utility model.
Fig. 3 is the structural representation of throttle valve of the present utility model.
Fig. 4 is the structural representation of one-way valve of the present utility model.
Fig. 5 is the oil circuit figure of hydraulic jack of the present utility model from cylinder head oil-feed.
Fig. 6 a is the throttle valve partial enlarged drawing of cylinder bottom A in Fig. 5.
Fig. 6 b is the one-way valve partial enlarged drawing of cylinder bottom A in Fig. 5.
Fig. 7 a is the throttle valve partial enlarged drawing of cylinder head B in Fig. 5.
Fig. 7 b is the one-way valve partial enlarged drawing of cylinder head B in Fig. 5.
Fig. 8 is the oil circuit figure of hydraulic jack of the present utility model from cylinder bottom oil-feed.
Fig. 9 a is the throttle valve partial enlarged drawing of cylinder bottom A in Fig. 8.
Fig. 9 b is the one-way valve partial enlarged drawing of cylinder bottom A in Fig. 8.
Figure 10 a is the throttle valve partial enlarged drawing of cylinder head B in Fig. 8.
Figure 10 b is the one-way valve partial enlarged drawing of cylinder head B in Fig. 8.
Embodiment
Refer to Fig. 2, it is the structural representation of cushion cylinder of the present utility model.Hydraulic cushion oil cylinder for high-altitude operation vehicle of the present utility model, the piston 3 comprising cylinder barrel 1, be arranged on the piston rod 2 of this cylinder barrel 1 inside, be set in this piston rod 2 one end, and a pipeline assembly 5.
Be oil pocket 4 between described piston rod 2 periphery and cylinder barrel 1 inwall.
Described pipeline assembly 5 comprises the first oil pipe 51, second oil pipe 52 and hydraulic two-way lock 53, described first oil pipe 51 is connected with the opening of hydraulic two-way lock 53 respectively with one end of the second oil pipe 52, and the other end of described first oil pipe 51 and the second oil pipe 52 is communicated in described oil pocket 4 respectively.
The cylinder bottom 11 of described cylinder barrel 1 is provided with one-way valve 8 and a throttle valve 7; The cylinder head 12 of described cylinder barrel is provided with one-way valve 8 and a throttle valve 7.
Further, the end sleeve of described piston rod 2 is provided with a buffering ring 5, and described buffering ring 5 is positioned at the rear end of described piston 3; Described buffering ring 4 is towards cylinder bottom 11.Described buffering ring 5 is connected by the end of screw thread with described piston rod 2.The fit tolerance gap of described buffering ring 5 external diameter and cylinder bottom 11 endoporus is between 0.025-0.045mm.
Further, described piston rod 2 is arranged with a cushion collar 6, and described cushion collar 6 is positioned at the front end of piston 3; Described cushion collar 6 is towards cylinder head 12.The fit tolerance gap of described cushion collar 6 external diameter and cylinder head 12 endoporus is between 0.025-0.045mm.Be provided with O shape between described piston 3 and piston rod and enclose 31.Described cushion collar 6 outer race is provided with floating bushing 61.
Refer to Fig. 3, it is the structural representation of throttle valve of the present utility model.Throttle valve 7 in this case comprises valve body 71, spool 72 and tightening nut 73.Described spool 72 is connected with valve body 71 by this tightening nut 73.Described throttle valve 7 plays regulator solution compressing cylinder and plays buffer function when running to two ends in the utility model.
When regulating throttle valve, passing through following steps: first tightening nut 73 is unscrewed, spool 71 is placed on the less position of amount of restriction, then increase amount of restriction gradually to satisfied, finally tightening nut 73 is locked, be shifted to prevent the spool 71 adjusted.Regulate when nothing is carried outward during buffering when oil hydraulic cylinder dispatches from the factory, cushioning effect required under actual operating conditions still needs user from Row sum-equal matrix.
Refer to Fig. 4, it is the structural representation of one-way valve of the present utility model.Further, described one-way valve 8 comprises valve body 81, spool 82 and valve core nut 83; Described spool 82 is connected with valve body 81 by valve core nut 83.Described one-way valve 8 also comprises a spool O shape circle and valve body O shape circle; Described valve body 81 is provided with a circular groove, and described valve body O shape circle is arranged in this circular groove; The end of described spool 82 is provided with a circular groove, and described spool O shape circle is arranged in this circular groove.
One-way valve regulating method of the present utility model is: elder generation is Pressure Drop to 0.5-1MPa, and while reciprocating motion of the pistons, proficiency emery cloth covers air ejiction opening, another hand opening and closing exhaust bolt, when piston reaches stroke terminal, the moment that pressure raises opens, and closes before commutation.When having air, there is " hiss, hiss " sound, and the muddy foam ejection of adularescent, after air drains, oil is in clear look.
Refer to Fig. 5-Fig. 7 b, it is respectively the oil circuit figure of hydraulic jack of the present utility model from cylinder head oil-feed, and the one-way valve of cylinder head and cylinder bottom and the partial enlarged drawing of throttle valve.When hydraulic jack is from cylinder head 12 oil-feed, promotes piston rod 2 and move toward the direction of cylinder bottom.Now, the throttle valve of cylinder bottom 11, according to the effect regulating the size of oil circuit to be used for playing when running to cylinder bottom to piston rod buffering, prevents piston rod 2 excessive velocities from clashing into cylinder bottom 11.The one-way valve now not oil-feed of cylinder bottom 11.The one-way valve of cylinder head 12 is opened repairing fast and is reached the effect that piston rod 2 quick starting improves speed, and the throttle valve of cylinder head 12 also can play repairing thus reach to carry out speed governing to piston rod.
Refer to Fig. 8-Figure 10 b, it is respectively the oil circuit figure of hydraulic jack of the present utility model from cylinder bottom oil-feed, and the one-way valve of cylinder head and cylinder bottom and the partial enlarged drawing of throttle valve.When hydraulic jack is from cylinder bottom 11 oil-feed, promotes piston rod 2 and move toward the direction of cylinder head.Now, the throttle valve of cylinder head 12, according to the effect regulating the size of oil circuit to be used for playing when running to cylinder head to piston rod buffering, prevents piston rod 2 excessive velocities from clashing into cylinder head 12, the one-way valve now not oil-feed of cylinder head 12.The one-way valve of cylinder bottom 11 is opened repairing fast and is reached the effect that piston rod 2 quick starting improves speed, and the throttle valve of cylinder bottom 11 also can play repairing thus reach to carry out speed governing to piston rod.
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, connected pipes and hydraulic lock can be there is no as: hydraulic jack but only on cylinder head and cylinder bottom ring surface, be provided with oil inlet and outlet etc.; 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 (10)
1., for a hydraulic cushion oil cylinder for high-altitude operation vehicle, comprise cylinder barrel, be arranged on the piston rod of this cylinder barrel inside, cushion collar and buffering ring and be located at the piston of this piston rod one end; Be oil pocket between described piston rod periphery and cylinder barrel inwall; It is characterized in that:
Comprise a pipeline assembly; Described pipeline assembly comprises the first oil pipe, the second oil pipe and hydraulic two-way lock, described first oil pipe is connected with the opening of hydraulic two-way lock respectively with one end of the second oil pipe, and the other end of described first oil pipe and the second oil pipe is communicated in the oil inlet and outlet of described hydraulic jack respectively;
The cylinder bottom of described hydraulic jack is provided with an one-way valve and a throttle valve; The cylinder head of described hydraulic jack is provided with an one-way valve and a throttle valve; When the piston rod of hydraulic jack is toward the direction motion of cylinder bottom, described cylinder bottom throttle valve is used for cushioning when running to cylinder bottom to piston rod according to regulating the size of oil circuit, and the one-way valve not oil-feed of cylinder bottom; Cylinder head one-way valve is opened repairing fast and is reached the effect that piston rod quick starting improves speed, and cylinder head throttle valve also can play repairing thus reach to carry out speed governing to piston rod;
When the piston rod of hydraulic jack is toward the direction motion of cylinder head, described cylinder head throttle valve is used for cushioning when running to cylinder head to piston rod according to regulating the size of oil circuit, and the one-way valve not oil-feed of cylinder head; Cylinder bottom one-way valve is opened repairing fast and is reached the effect that piston rod quick starting improves speed, and cylinder bottom throttle valve oil circuit also can play repairing thus reach to carry out speed governing to piston rod.
2. according to claim 1 for the hydraulic cushion oil cylinder of high-altitude operation vehicle, it is characterized in that: the end sleeve of described piston rod is provided with a buffering ring, and described buffering ring is positioned at the rear end of described piston; Described buffering ring is towards cylinder bottom.
3. according to claim 2 for the hydraulic cushion oil cylinder of high-altitude operation vehicle, it is characterized in that: described buffering ring is connected by the end of screw thread with described piston rod; Described buffering ring is towards cylinder bottom.
4. according to claim 3 for the hydraulic cushion oil cylinder of high-altitude operation vehicle, it is characterized in that: the fit tolerance gap of described buffering ring external diameter and cylinder bottom endoporus is between 0.025-0.045mm.
5., according to claim 2 for the hydraulic cushion oil cylinder of high-altitude operation vehicle, it is characterized in that: described upper cover of piston rod is provided with a cushion collar, and described cushion collar is positioned at the front end of piston; Described cushion collar is towards cylinder head.
6. according to claim 5 for the hydraulic cushion oil cylinder of high-altitude operation vehicle, it is characterized in that: the fit tolerance gap of described cushion collar external diameter and cylinder head endoporus is between 0.025-0.045mm.
7. according to claim 6 for the hydraulic cushion oil cylinder of high-altitude operation vehicle, it is characterized in that: be provided with O shape between described piston and piston rod and enclose.
8. according to claim 7 for the hydraulic cushion oil cylinder of high-altitude operation vehicle, it is characterized in that: described cushion collar outer race is provided with floating bushing; Described cushion collar is towards cylinder head.
9., according to claim 1 for the hydraulic cushion oil cylinder of high-altitude operation vehicle, it is characterized in that: described one-way valve comprises valve body, spool and valve core nut; Described spool is connected with valve body by valve core nut.
10. according to claim 9 for the hydraulic cushion oil cylinder of high-altitude operation vehicle, it is characterized in that: described one-way valve also comprises a spool O shape circle and valve body O shape circle; Described valve body is provided with a circular groove, and described valve body O shape circle is arranged in this circular groove; The end of described spool is provided with a circular groove, and described spool O shape circle is arranged in this circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420760161.6U CN204284079U (en) | 2014-12-05 | 2014-12-05 | A kind of hydraulic cushion oil cylinder for high-altitude operation vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420760161.6U CN204284079U (en) | 2014-12-05 | 2014-12-05 | A kind of hydraulic cushion oil cylinder for high-altitude operation vehicle |
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| CN204284079U true CN204284079U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420760161.6U Active CN204284079U (en) | 2014-12-05 | 2014-12-05 | A kind of hydraulic cushion oil cylinder for high-altitude operation vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538575A (en) * | 2019-01-17 | 2019-03-29 | 大连诺美液压件有限公司 | Ship hydraulic cylinder with individual event speed governing valve |
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2014
- 2014-12-05 CN CN201420760161.6U patent/CN204284079U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538575A (en) * | 2019-01-17 | 2019-03-29 | 大连诺美液压件有限公司 | Ship hydraulic cylinder with individual event speed governing valve |
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