Low-impact hydraulic system, control method and garbage compression station adopting system
A hydraulic system and control method technology, applied in the field of hydraulic systems, can solve problems such as noise and mechanism damage, unsatisfactory effects, high failure rate, etc., and achieve the effects of reducing hydraulic shock and noise, low noise, and improving life and reliability
Inactive Publication Date: 2019-04-02
深圳东风汽车有限公司
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Problems solved by technology
[0002] Through the hydraulic cylinder drive mechanism, the reciprocating motion to achieve a certain function is a common driving method for equipment automation. When the hydraulic cylinder reciprocates, when the end of its stroke is reversed, there will often be a large impact, which will cause noise and damage to the mechanism.
To solve the commutation impact and noise, there are various technical solutions in China, either with high cost or complicated control system, or with unsatisfactory effects, all of which have various disadvantages, such as using various tooling to continuously improve the accuracy of structural parts to realize the reversing For the purpose of downward impact, not only the cost is high, but also the effect is not ideal; there is also the use of hydraulic servo control system for reversing control, the system is complex, the failure rate is high, and the cost is high
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Embodiment Construction
[0034] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0035] Such as figure 1 As shown, the small impact hydraulic system of this embodiment includes hydraulic pump A11, hydraulic pump B12, three-position four-way electromagnetic reversing valve 13, oil tank 14, hydraulic cylinder 15, check valve A16, check valve B17, pilot type Electromagnetic overflow valve A18, pilot-operated electromagnetic overflow valve B19, and PLC electronic control unit, the first oil port and the second oil port of the hydraulic cylinder 15 are respectively connected to the A port of the three-position four-way electromagnetic reversing valve 13 , Port B is connected through a pipeline, the P port of the three-position four-way electromagnetic reversing valve 13 is connected with the main oil inlet pipe 101, the output port of the hydraulic pump A11 is connected with the main oil inlet pipe 101 through the oil pipe A102, and the...
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The invention discloses a low-impact hydraulic system. The low-impact hydraulic system comprises a hydraulic pump A, a hydraulic pump B, a three-position four-way electromagnetic reversing valve, an oil tank, a hydraulic oil cylinder, a one-way valve A, a one-way valve B, a pilot type electromagnetic overflow valve A, a pilot type electromagnetic overflow valve B and a PLC electronic control unit.The invention further discloses a control method for stretching or retracting of a piston of the hydraulic oil cylinder of the low-impact hydraulic system, flexible starting and flexible stopping ofthe piston are achieved, therefore, reversing impact and noise are greatly reduced, the life of the hydraulic parts and the structural parts is prolonged, and the reliability of the hydraulic parts and the structural parts is improved. The invention further discloses a garbage compression station, noise is low, the life of the hydraulic parts and the structural parts is prolonged, and the reliability of the hydraulic parts and the structural parts is improved.
Description
【Technical field】 [0001] The invention relates to the field of hydraulic systems, in particular to a small-impact hydraulic system, a method for controlling the small-impact hydraulic system, and a garbage compression station using the small-impact hydraulic system. 【Background technique】 [0002] The reciprocating movement of the hydraulic cylinder drive mechanism to achieve a certain function is a commonly used driving method for equipment automation. When the hydraulic cylinder reciprocates and changes direction at the end of its stroke, there will often be a large impact, which will cause noise and damage to the mechanism. To solve the commutation impact and noise, there are various technical solutions in China, either with high cost or complicated control system, or with unsatisfactory effects, all of which have various disadvantages, such as using various tooling to continuously improve the accuracy of structural parts to realize the reversing For the purpose of downwa...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F15B21/02F15B21/00F15B13/044B30B15/16B30B15/26
CPCB30B15/16B30B15/26F15B21/008F15B21/02F15B2013/0448F15B2211/8606F15B2211/8616
Inventor 李伟涛蔡振华李涛尹声涛
Owner 深圳东风汽车有限公司