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Hydraulic control system for forklift, and forklift

A hydraulic control system and forklift technology, which is applied in fluid pressure actuation system components, fluid pressure actuation devices, servo motors, etc., can solve the problems of electric forklifts such as limited tonnage, bulky volume, and complex structure, and achieve environmental protection Low pollution, low noise, and reduced power loss

Active Publication Date: 2013-01-30
BEIJING SUPER HYDRAULIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The lifting tonnage of electric forklifts is limited;
[0005] 2. The maximum tonnage of internal combustion engine forklifts can reach 45T, but the structure is complex and bulky

Method used

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  • Hydraulic control system for forklift, and forklift

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Embodiment Construction

[0034] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0035] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways than described here. Therefore, the protection scope of the present invention is not limited by the specific implementation disclosed below. Example limitations.

[0036] figure 1 It is a principle diagram of an embodiment of the forklift hydraulic control system according to the present invention.

[0037] Such as figure 1 As shown, the present invention provides a fo...

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Abstract

The invention provides a hydraulic control system for a forklift. The hydraulic control system comprises an oil tank, a pumping component, a first control branch for controlling and driving the forklift to move forward or backward and a second control branch for controlling and driving the forklift to ascend or descend, wherein the pumping component pressurizes hydraulic oil in the oil tank and conveys the pressurized hydraulic oil to the first control branch and the second control branch; and return oil in the first control branch and the second control branch is conveyed to the oil tank through a return oil pipeline. The invention also provides the forklift. By the technical scheme, the lifting tonnage of the forklift is increased; the forklift stably runs, wide-range stepless speed change is easily realized, and power loss during speed change is reduced simultaneously; by a hydraulic drive mode, the weight of the forklift is greatly reduced, and the service lives of elements are prolonged due to a self-lubricating function of the oil; and besides, the environment is slightly polluted, and the forklift is low in noise.

Description

technical field [0001] The invention relates to the field of construction machinery, and more specifically, to a hydraulic control system for a forklift and a forklift containing the hydraulic control system. Background technique [0002] At present, domestic forklifts are divided into two driving forms: one is electric and the other is internal combustion engine. These two driving forms of forklifts are widely used in various freight fields. [0003] There are following problems in the two driving modes of the related art: [0004] 1. The lifting tonnage of electric forklifts is limited; [0005] 2. The maximum tonnage of internal combustion engine forklifts can reach 45T, but the structure is complex and bulky. Contents of the invention [0006] The technical problem to be solved by the present invention is to provide a forklift hydraulic control system with a simple structure, which can increase the lifting tonnage of the forklift while reducing its own weight, and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/02F15B13/02F15B21/04F15B21/00
Inventor 袁文生闫淑艳张俊玲
Owner BEIJING SUPER HYDRAULIC
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