A hydraulic bucket buffer mechanism and excavator
A technology of buffer mechanism and excavator, which is applied in the direction of earth moving machine/excavator, construction, etc. It can solve the problems of difficult maintenance, large space occupation, and difficult adjustment of liquid internal pressure, etc., and achieves compact structure, convenient maintenance, and space occupation small effect
Inactive Publication Date: 2016-04-27
SHANGHAI SANY HEAVY IND
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Problems solved by technology
However, these hydraulic buffers have unlimited structures, occupy a large space, and are difficult to adjust the internal pressure of the liquid and difficult to maintain.
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0028] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0029] Embodiments of the present invention will be specifically explained below in conjunction with the accompanying drawings.
[0030] like figure 1 and 2 A hydraulic bucket buffer mechanism 0 according to an embodiment of the present invention shown in , is suitable for the bucket of an exca...
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The invention discloses a hydraulic pressure bucket buffering mechanism and an excavator and belongs to the field of machine manufacturing. The hydraulic pressure bucket buffering mechanism is suitable for a bucket of the excavator and comprises a threaded shaft (11), an oil cylinder (7) and a sliding block. The threaded shaft (11) is arranged in the oil cylinder (7) in a sleeved mode. The threaded shaft (11) is connected with the oil cylinder (7) in a sealing mode and can rotate relative to the oil cylinder (7). A closed buffering cavity is formed between the threaded shaft (11) and an inner cavity of the oil cylinder (7). Buffering liquid is arranged in the buffering cavity. The sliding block is arranged in the buffering cavity and arranged on the threaded shaft (11) in a sleeved mode through threaded connection. The sliding block is connected with a lead screw of the threaded shaft (11). When the threaded shaft (11) rotates relative to the oil cylinder (7), the sliding block moves along the threaded shaft (11) relative to the oil cylinder (7), and the threaded shaft (11) and the oil cylinder (7) are respectively connected with a body or the bottom of the bucket. According to the technical scheme, the compact lead screw is adopted for driving to push the sliding block to move to change pressure of internal liquid, and therefore the functions of vibration reducing and buffering can be achieved; maintenance is convenient to carry out while the stability is improved.
Description
technical field [0001] The invention belongs to the field of mechanical equipment manufacturing, and relates to a buffer mechanism, in particular to a hydraulic bucket buffer mechanism and an excavator. Background technique [0002] After the electric shovel bucket of the excavator is opened, due to the heavy weight of the material and the bottom of the bucket, the impact caused by the acceleration of gravity during the stroke will damage the stick and the bucket itself, reducing the welding fatigue strength and life. [0003] At present, the buffering methods used on electric shovels mainly include mechanical friction and hydraulic resistance. Comparing hydraulic shock absorbers with mechanical shock absorbers, the characteristics of hydraulic shock absorbers are clear at a glance. Mechanical buffers are divided into rocker type and barrel type. The rocker-type front shock absorber is too short, and the cartridge buffer is correspondingly more comfortable. The cylinder b...
Claims
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IPC IPC(8): E02F9/00
Inventor 莫莉莉邢晓明牟肇宇
Owner SHANGHAI SANY HEAVY IND