CN203728529U - High-altitude work vehicle buffering control system - Google Patents
High-altitude work vehicle buffering control system Download PDFInfo
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- CN203728529U CN203728529U CN201420042617.5U CN201420042617U CN203728529U CN 203728529 U CN203728529 U CN 203728529U CN 201420042617 U CN201420042617 U CN 201420042617U CN 203728529 U CN203728529 U CN 203728529U
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- way throttle
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Abstract
The utility model relates to a high-altitude work vehicle buffering control system which comprises a liquid control proportional multi-way valve, a lower arm double-way balance valve, a lower arm oil cylinder, an upper single-way balance valve, an upper arm oil cylinder, a telescopic arm double-way balance valve, a telescopic arm oil cylinder, a rotating motor, a guiding control valve and a single-way throttle valve. Each valve liquid control opening of the liquid control proportional multi-way valve is connected with the single-way throttle valve to form the buffering control system. Hydraulic pressure signals output by the guiding control valve pass through the single-way throttle valve to the liquid control proportional multi-way valve and act on a valve element, elastic force of a compressed reset spring and resistance of hydraulic oil at a liquid control cavity are resisted, so that the valve element moves slowly and is opened, output flow is matched with action speed of driving mechanisms, stable operation of actuators during starting, stopping, reversing, accelerating and moderating is guaranteed, and impact and shaking are avoided.
Description
Technical field
The utility model relates to a kind of aerial platform buffer control system, this system be applicable to insulated type or the each actuating unit of nonisulated type aerial platform starting, stop, in commutation, acceleration and moderating process, ensure each actuating unit operate steadily, without impact, non-jitter, shockproof, without rocking.
Background technology
Aerial platform each actuating unit in operation process often needs re-lighting, stops, commutating, accelerate and slows down, the counter pressure forming due to the throttling of force of inertia, friction force and hydraulic circuit, each actuating unit is existed and impact, rock, shake, shake and move not steadily phenomenon, affect operation comfort and the safety of operating personal, be also affected the service life of each actuating unit and Hydraulic Elements.On aerial platform, generally adopt oil cylinder two ends to cushion at present, all the other positions are without buffering.While causing aerial platform operation, the operation of each actuating unit is not steady, has shake and shaking phenomenon.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiency that prior art exists, and a kind of aerial platform buffer control system is provided.This system adopts the each actuating unit action of hydraulic control proportional multi-way valve control, increase one-way throttle valve at the each hydraulic control mouth of hydraulic control proportional multi-way valve place and form buffer control system, the output signal that makes to drive the step hydraulic pressure signal of hydraulic control proportional multi-way valve input to be converted to rising after one-way throttle valve is applied on hydraulic control proportional multi-path valve core, make spool displacement slowly open valve port, the flow of output rises slowly and matches with actuating unit action running velocity, ensure that each actuating unit is in starting, stop, commutation, in acceleration and moderating process, operate steadily, without impacting and rocking.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of aerial platform buffer control system, comprises hydraulic control proportional multi-way valve, underarm Bidirectional balanced valve, underarm oil cylinder, upper arm one-way balance valve, upper arm oil cylinder, telescopic boom Bidirectional balanced valve, telescopic boom cylinder, rotary motor, pilot-actuated valve, it is held to levy and is: be also provided with one-way throttle valve, one-way throttle valve comprises the first one-way throttle valve, the second one-way throttle valve, the 3rd one-way throttle valve, the 4th one-way throttle valve, the 5th one-way throttle valve, the 6th one-way throttle valve, the 7th one-way throttle valve, the 8th one-way throttle valve, pilot-actuated valve has revolution control handle, telescopic boom control handle, upper arm control handle, underarm control handle, revolution control handle, telescopic boom control handle, upper arm control handle, the parallel connection of underarm control handle, hydraulic control proportional multi-way valve has underarm valve, upper arm valve, telescopic boom valve, rotovalve and safety valve, underarm valve, upper arm valve, telescopic boom valve, rotovalve, safety valve parallel connection, underarm valve oil outlet and underarm Bidirectional balanced valve, underarm oil cylinder is connected, underarm valve hydraulic control mouth and the 4th one-way throttle valve, the 8th one-way throttle valve, underarm control handle in pilot-actuated valve connects, and forms underarm driving control system, upper arm valve oil outlet is connected with upper arm one-way balance valve, upper arm oil cylinder, and upper arm valve hydraulic control mouth is connected with the upper arm control handle in the 3rd one-way throttle valve, the 7th one-way throttle valve, pilot-actuated valve, forms upper arm driving control system, telescopic boom valve oil outlet is connected with telescopic boom Bidirectional balanced valve, telescopic boom cylinder, and telescopic boom valve hydraulic control mouth is connected with the telescopic boom control handle in the second one-way throttle valve, the 6th one-way throttle valve, pilot-actuated valve, forms telescopic boom driving control system, rotovalve oil outlet is connected with rotary motor, and rotovalve hydraulic control mouth is connected with the revolution control handle in the first one-way throttle valve, the 5th one-way throttle valve, pilot-actuated valve, forms revolution driving control system.Safety valve is to ensure that each actuating unit is in the time of work, and its operation pressure is no more than the force value of default, and in the time that load is excessive, safety valve is opened release.
One-way throttle valve described in the utility model is by check valve and be used for regulating the adjustable damping hole of one-way throttle valve output signal size to compose in parallel.One-way throttle valve is connected with the hydraulic control mouth of pilot-actuated valve, hydraulic control proportional multi-way valve respectively, and the plate valve in every two one-way throttle valves and hydraulic control proportional multi-way valve forms a buffer control system.
Pilot-actuated valve described in the utility model forms by turning round control handle, telescopic boom control handle, upper arm control handle, underarm control handle, revolution control handle, telescopic boom control handle, upper arm control handle, underarm control handle are connected in parallel to each other and are connected with one-way throttle valve, the hydraulic pressure signal of its output acts on spool to hydraulic control proportional multi-way valve hydraulic control mouth place through one-way throttle valve, and spool opening speed and delivery rate are matched with corresponding actuating unit responsiveness.Described actuating unit refers to respectively and revolution control handle, telescopic boom control handle, upper arm control handle, rotary motor, telescopic boom cylinder, upper arm oil cylinder, underarm oil cylinder that underarm control handle is corresponding.
The utility model has the advantages that: each actuating unit starts in any position, stops, operating steadily in commutation, acceleration and moderating process, without impacting and shake, solved and only had stroke terminal to have buffering in the past.
Brief description of the drawings
Fig. 1 is the hydraulic schematic diagram of the utility model embodiment.
Detailed description of the invention
Referring to Fig. 1, the utility model embodiment aerial platform buffer control system, comprise hydraulic control proportional multi-way valve 1, underarm Bidirectional balanced valve 2, underarm oil cylinder 3, upper arm one-way balance valve 4, upper arm oil cylinder 5, telescopic boom Bidirectional balanced valve 6, telescopic boom cylinder 7, rotary motor 8, pilot-actuated valve 9, the first one-way throttle valve 1., the second one-way throttle valve 2., the 3rd one-way throttle valve 3., the 4th one-way throttle valve 4., the 5th one-way throttle valve 5., the 6th one-way throttle valve 6., the 7th one-way throttle valve 7., 8. the 8th one-way throttle valve waits element, between them, be connected by pipeline, each one-way throttle valve all has adjustable damping hole 10, be used for regulating the output signal size of one-way throttle valve.Hydraulic control proportional multi-way valve 1 is provided with underarm valve 11, upper arm valve 12, telescopic boom valve 13, rotovalve 14 and safety valve 15, underarm valve 11, upper arm valve 12, telescopic boom valve 13, rotovalve 14, safety valve 15 are connected in parallel to each other, underarm valve 11 oil outlet A4, B4 are connected with underarm Bidirectional balanced valve 2, underarm oil cylinder 3, underarm valve 11 hydraulic control mouth a4, b4 and the 4th one-way throttle valve are 4., underarm control handle IV hydraulic control mouth c4, the d4 of the 8th one-way throttle valve 8., in pilot-actuated valve 9 be connected, and form underarm driving control system, upper arm valve 12 oil outlet A3, B3 are connected with upper arm one-way balance valve 4, upper arm oil cylinder 5, upper arm valve 12 hydraulic control mouth a3, b3 and the 3rd one-way throttle valve are 3., upper arm control handle III hydraulic control mouth c3, the d3 of the 7th one-way throttle valve 7., in pilot-actuated valve 9 be connected, and form upper arm driving control system, telescopic boom valve 13 oil outlet A2, B2 are connected with telescopic boom Bidirectional balanced valve 6, telescopic boom cylinder 7, telescopic boom valve 13 hydraulic control mouth a2, b2 and the second one-way throttle valve are 2., telescopic boom control handle II hydraulic control mouth c2, the d2 of the 6th one-way throttle valve 6., in pilot-actuated valve 9 be connected, and form telescopic boom driving control system, rotovalve 14 oil outlet A1, B1 are connected with rotary motor 8, rotovalve 14 hydraulic control mouth a1, b1 and the first one-way throttle valve are 1., revolution control handle I hydraulic control mouth c1, the d1 of the 5th one-way throttle valve 5., in pilot-actuated valve 9 be connected, and form revolution driving control system, the first one-way throttle valve 1., the second one-way throttle valve 2., the 3rd one-way throttle valve 3., the 4th one-way throttle valve 4., the 5th one-way throttle valve 5., the 6th one-way throttle valve 6., the 7th one-way throttle valve 7., 8. the 8th one-way throttle valve is connected with hydraulic control proportional multi-way valve 1, form buffer control system, wherein the first one-way throttle valve 1., 5. the 5th one-way throttle valve is arranged on respectively rotovalve 14 hydraulic control mouth a1, the two ends of b1, form revolution buffer control system, the second one-way throttle valve 2., 6. the 6th one-way throttle valve is arranged on respectively telescopic boom valve 13 hydraulic control mouth a2, the two ends of b2, form telescopic boom buffer control system, the 3rd one-way throttle valve 3., 7. the 7th one-way throttle valve is arranged on respectively upper arm valve 12 hydraulic control mouth a3, the two ends of b3, form upper arm buffer control system, the 4th one-way throttle valve 4., 8. the 8th one-way throttle valve is arranged on respectively underarm valve 11 hydraulic control mouth a4, the two ends of b4, form underarm buffer control system.Pilot-actuated valve 9 has revolution control handle I, telescopic boom control handle II, upper arm control handle III, underarm control handle IV, revolution control handle I hydraulic control mouth c1, d1 and rotovalve 14 hydraulic control mouth a1, first one-way throttle valve at b1 two ends 1., 5. the 5th one-way throttle valve connects, telescopic boom control handle II hydraulic control mouth c2, d2 and telescopic boom valve 13 hydraulic control mouth a2, second one-way throttle valve at b2 two ends 2., 6. the 6th one-way throttle valve connects, upper arm control handle III hydraulic control mouth c3, d3 and upper arm valve 12 hydraulic control mouth a3, the 3rd one-way throttle valve at b3 two ends 3., 7. the 7th one-way throttle valve connects, underarm control handle IV hydraulic control mouth c4, d4 and underarm valve 11 hydraulic control mouth a4, the 4th one-way throttle valve at b4 two ends 4., 8. the 8th one-way throttle valve connects, control respectively rotary motor 8, telescopic boom cylinder 7, upper arm oil cylinder 5, the action of underarm oil cylinder 3 and speed.In figure, P mouth is the delivery port (oil inlet of hydraulic control proportional multi-way valve 1) of pump, supplies with actuating unit (comprising underarm oil cylinder 3, upper arm oil cylinder 5, telescopic boom cylinder 7, rotary motor 8) hydraulic oil; P1 mouth is the control oil sources of supplying with pilot-actuated valve 9; T mouth is the logical fuel tank of the return opening of hydraulic control proportional multi-way valve 1; T1 mouth is the logical fuel tank of the return opening of pilot-actuated valve 9.Each control handle (comprising revolution control handle I, telescopic boom control handle II, upper arm control handle III, underarm control handle IV) all has three gears, be meta, (2) shelves, (1) shelves, control handle is not controlled oil output in the time of meta, and control handle is exported respectively reverse control oil signal in the time of (2) shelves or (1) shelves.
The utility model principle of work is as follows:
When aerial platform operation, by handling action and the speed of the each actuating unit of pilot-actuated valve 9 control handle control.Taking underarm driving control system as example:
In the time that underarm rises, by the (2) deflection angle of shelves of the underarm control handle IV in operated pilot control cock 9, send hydraulic pressure signal proportional to angle by the road to the 4th one-way throttle valve being connected with underarm valve 11 the check valve direct effect in 4. to the underarm valve 11 hydraulic control mouth a4 places in hydraulic control proportional multi-way valve 1, the step hydraulic pressure signal function of input is on underarm valve 11 spools, promote spool to bottom offset to overcome the elastic force of compression reseting spring, in place the moving past in journey of spool must be got rid of the hydraulic oil in underarm valve 11 hydraulic control mouth b4 place control chambers, the hydraulic oil at this place flows to the (1) shelves oil sump tank of underarm control handle IV in control cock 9 after adjustable damping hole 10 throttlings in 8. through the 8th one-way throttle valve, make the step hydraulic pressure signal of input be converted to the output signal of rising, the slope amount of output signal can be according to the 8th one-way throttle valve the size in 10 apertures, adjustable damping hole in 8. regulate, the velocity of displacement of spool and the output signal of rising are directly proportional, ensure that the open amount slack time of valve port and P mouth enter the hoisting time that the hydraulic oil of underarm valve 11 enters underarm oil cylinder 3 large chambeies (rodless cavity) by underarm Bidirectional balanced valve 2 and match, underarm is hoisted to operate steadily, without impacting and shake.
In the time that underarm stops, by the underarm control handle IV in pilot-actuated valve 9 (2) shelves get back to meta, act under the effect of the compression reseting spring elastic force on underarm valve 11 spools and make valve core reset, in spool multiple process in place, must get rid of the hydraulic oil in underarm valve 11 hydraulic control mouth a4 place control chambers, the (2) grade oil sump tank of underarm control handle IV that the hydraulic oil at this place is flowed through in pilot-actuated valve 9 after adjustable damping hole 10 throttlings in 4. through the 4th one-way throttle valve.The throttle effect that is subject to hydraulic oil in underarm valve 11 hydraulic control mouth a4 place control chambers because of spool in whole reseting procedure resets, delays the valve port shut lentamente, in this process, underarm oil cylinder 3 stops after can continuing upwards to move lentamente a segment distance reposefully, and this segment distance and time can be determined according to the pore size in different regulating working conditions adjustable damping holes 10.
In the time that underarm declines, by the (1) deflection angle of shelves of the underarm control handle IV in operated pilot control cock 9, send hydraulic pressure signal proportional to angle by the road to the 8th one-way throttle valve 8., through check valve direct effect to the underarm valve 11 hydraulic control mouth b4 places in hydraulic control proportional multi-way valve 1, the step hydraulic pressure signal function of input is on spool, promote spool to top offset to overcome the elastic force of compression reseting spring, in place the moving past in journey of spool must be got rid of the hydraulic oil in underarm valve 11 hydraulic control mouth a4 place control chambers, the underarm control handle IV that the hydraulic oil at this place is flowed through in pilot-actuated valve 9 after adjustable damping hole 10 throttlings in 4. through the 4th one-way throttle valve is shelves oil sump tank (2), make the step hydraulic pressure signal of input be converted to the output signal of rising, the slope amount of output signal can be according to the 4th one-way throttle valve the size in 10 apertures, adjustable damping hole in 4. regulate, the velocity of displacement of spool and the output signal of rising are directly proportional, ensure that the open amount slack time of valve port and P mouth enter the fall time that the hydraulic oil of underarm valve 11 enters underarm oil cylinder 3 loculuses (rod chamber) by underarm Bidirectional balanced valve 2 and match, underarm is declined to operate steadily, without impacting and shake.
In the time that underarm accelerates suddenly and slow down suddenly, due to the unexpected variation of delivery quality, the response speed of oil cylinder is not mated with the pace of change of delivery quality, pipeline system and cylinder cavity oil liquid pressure were sharply raise in moment, form larger pressure peak, cause very large hydraulic efficiency impact, make the underarm of smooth running produce suddenly shake and shaking phenomenon.The buffering control system adopting at present, can ensure that the open amount of valve port and the slack time of the amount of closing and P mouth enter the time that the hydraulic oil of underarm valve 11 enters underarm oil cylinder 3 by underarm Bidirectional balanced valve 2 and match, ensure that underarm operates steadily, without impacting and shake.Its principle of work is same as described above.
All the other actuating units (upper arm drive system, telescopic boom drive system, gyroscopic drive system) starting, stop, in commutation, acceleration and moderating process, in order to ensure that each actuating unit operates steadily, nothing is impacted, non-jitter, its principle of work is identical with lower arm drive system.
The utility model embodiment aerial platform buffer control system, make each actuating unit operate steadily, without impact, non-jitter, shockproof and without rocking, ensured staff's safety and the operation comfort on bucket.All applicable on insulated type or nonisulated type aerial platform, work efficiency and the economic effects of raising car load.
Claims (3)
1. an aerial platform buffer control system, comprises hydraulic control proportional multi-way valve, underarm Bidirectional balanced valve, underarm oil cylinder, upper arm one-way balance valve, upper arm oil cylinder, telescopic boom Bidirectional balanced valve, telescopic boom cylinder, rotary motor, pilot-actuated valve, it is held to levy and is: be also provided with one-way throttle valve, one-way throttle valve comprises the first one-way throttle valve, the second one-way throttle valve, the 3rd one-way throttle valve, the 4th one-way throttle valve, the 5th one-way throttle valve, the 6th one-way throttle valve, the 7th one-way throttle valve, the 8th one-way throttle valve, pilot-actuated valve has revolution control handle, telescopic boom control handle, upper arm control handle, underarm control handle, revolution control handle, telescopic boom control handle, upper arm control handle, the parallel connection of underarm control handle, hydraulic control proportional multi-way valve has underarm valve, upper arm valve, telescopic boom valve, rotovalve and safety valve, underarm valve, upper arm valve, telescopic boom valve, rotovalve, safety valve parallel connection, underarm valve oil outlet and underarm Bidirectional balanced valve, underarm oil cylinder is connected, underarm valve hydraulic control mouth and the 4th one-way throttle valve, the 8th one-way throttle valve, underarm control handle in pilot-actuated valve connects, and forms underarm driving control system, upper arm valve oil outlet is connected with upper arm one-way balance valve, upper arm oil cylinder, and upper arm valve hydraulic control mouth is connected with the upper arm control handle in the 3rd one-way throttle valve, the 7th one-way throttle valve, pilot-actuated valve, forms upper arm driving control system, telescopic boom valve oil outlet is connected with telescopic boom Bidirectional balanced valve, telescopic boom cylinder, and telescopic boom valve hydraulic control mouth is connected with the telescopic boom control handle in the second one-way throttle valve, the 6th one-way throttle valve, pilot-actuated valve, forms telescopic boom driving control system, rotovalve oil outlet is connected with rotary motor, and rotovalve hydraulic control mouth is connected with the revolution control handle in the first one-way throttle valve, the 5th one-way throttle valve, pilot-actuated valve, forms revolution driving control system.
2. aerial platform buffer control system according to claim 1, it is held to levy and is: described one-way throttle valve is by check valve and be used for regulating the adjustable damping hole of one-way throttle valve output signal size to compose in parallel.
3. aerial platform buffer control system according to claim 1, it holds to levy: the hydraulic pressure signal of described pilot-actuated valve output acts on hydraulic control proportional multi-path valve core to hydraulic control proportional multi-way valve hydraulic control mouth place through one-way throttle valve, and hydraulic control proportional multi-path valve core opening speed and delivery rate are matched with corresponding actuating unit responsiveness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420042617.5U CN203728529U (en) | 2014-01-23 | 2014-01-23 | High-altitude work vehicle buffering control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420042617.5U CN203728529U (en) | 2014-01-23 | 2014-01-23 | High-altitude work vehicle buffering control system |
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| Publication Number | Publication Date |
|---|---|
| CN203728529U true CN203728529U (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420042617.5U Withdrawn - After Issue CN203728529U (en) | 2014-01-23 | 2014-01-23 | High-altitude work vehicle buffering control system |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754804A (en) * | 2014-01-23 | 2014-04-30 | 杭州爱知工程车辆有限公司 | Buffer control system of hydraulic aerial cage |
| CN108317120A (en) * | 2018-04-10 | 2018-07-24 | 中铁工程机械研究设计院有限公司 | A kind of hydraulic power supply shared system of hydraulic vibration impact robot |
| CN108862140A (en) * | 2017-05-12 | 2018-11-23 | 罗伯特·博世有限公司 | The syndrome buffer and elevating mechanism that can be changed adjustment for elevating mechanism |
| CN109185246A (en) * | 2018-11-22 | 2019-01-11 | 徐工消防安全装备有限公司 | Hydraulic control system and aerial working platform vehicle |
-
2014
- 2014-01-23 CN CN201420042617.5U patent/CN203728529U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754804A (en) * | 2014-01-23 | 2014-04-30 | 杭州爱知工程车辆有限公司 | Buffer control system of hydraulic aerial cage |
| CN103754804B (en) * | 2014-01-23 | 2016-08-24 | 杭州爱知工程车辆有限公司 | A kind of Buffer control system of hydraulic aerial cage |
| CN108862140A (en) * | 2017-05-12 | 2018-11-23 | 罗伯特·博世有限公司 | The syndrome buffer and elevating mechanism that can be changed adjustment for elevating mechanism |
| CN108317120A (en) * | 2018-04-10 | 2018-07-24 | 中铁工程机械研究设计院有限公司 | A kind of hydraulic power supply shared system of hydraulic vibration impact robot |
| CN108317120B (en) * | 2018-04-10 | 2024-04-16 | 中铁工程机械研究设计院有限公司 | Hydraulic power source sharing system of hydraulic vibration impact robot |
| CN109185246A (en) * | 2018-11-22 | 2019-01-11 | 徐工消防安全装备有限公司 | Hydraulic control system and aerial working platform vehicle |
| CN109185246B (en) * | 2018-11-22 | 2024-06-07 | 徐工消防安全装备有限公司 | Hydraulic control system and aerial work platform truck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140723 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |