Lubrication system of concrete machine and concrete machine
A technology of concrete machinery and lubrication system, applied in the direction of engine lubrication, mechanical equipment, pressure lubricant, etc., can solve the problems of reducing concrete strength, waste of lubricant, increasing production cost, etc., and achieve the effect of reducing impact and cost
Active Publication Date: 2013-10-23
SANY GRP
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Problems solved by technology
Due to the continuous injection of lubricant, the lubricant is wasted and the production cost is increased; in addition, the continuously injected lubricant will enter the concrete in the concrete container, and when more lubricant enters the concrete, the strength of the concrete will be reduced
Method used
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[0024] The core of the present invention is to provide a concrete mechanical lubrication system, which divides the sealed cavity between the bearing and the shaft into a load-bearing cavity and a protective cavity through the sealing component, which can save lubricating oil under the premise of preventing concrete from entering the bearing without affecting the strength of concrete. Another core of the present invention is to provide a concrete machine with the above lubricating system.
[0025] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. For ease of understanding and concise description, the following content is described in conjunction with the lubrication system and the concrete machinery as a whole, and the technical solutions and beneficial effects will not be repeate...
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A lubrication system of concrete machinery and concrete machinery. The lubrication system has a bearing (27) and a rotary shaft (28) fitted with each other and both contacting concrete. The bearing (27) has a seal component (21) at two ends. The seal component (21), the bearing (27) and the rotary shaft (28) form a seal cavity. The seal cavity is divided by a partitioning seal component (22) between the bearing (27) and the rotary shaft (28) into a bearing cavity (24) and a protection cavity (23) located at an end portion of the bearing (27). The protection cavity (23) is in communication with a high-pressure medium pipeline through a high-pressure medium passage (26) on the bearing (27); the bearing cavity (24) is in communication with a lubricating oil pipeline through a lubricating oil passage (25) on the bearing (27). The pressure of the medium in the protection cavity (23) is higher than the pressure of the external concrete. The lubrication system prevents the concrete from entering the seal cavity, reduces the abrasion of the concrete on the bearing (27), reduces the lubricating oil usage and the impact of the lubricating oil on the strength of the concrete. Also provided is concrete machinery equipped with the lubrication system.
Description
technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a lubrication system for concrete machinery. The invention also relates to a concrete machine comprising a lubrication system. Background technique [0002] Concrete machinery includes concrete pump trucks, trailer pumps, vehicle-mounted pumps, etc. The concrete machine has a concrete container for placing concrete for pumping of the concrete. Concrete containers are usually equipped with bearings, such as mixing system bearings and S valve bearings, which are used to cooperate with the mixing shaft and S valve respectively. Since such shafts and bearings are generally in contact with the concrete in the concrete container, the concrete easily enters the bearings, causing wear of the bearings. [0003] Please refer to figure 1 , figure 1 It is a structural schematic diagram of setting an S valve in a concrete container in the prior art. [0004] figure 1 The ...
Claims
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IPC IPC(8): E04G21/04F16N7/30
CPCF04B15/02F16N7/30F01D25/18F01M1/00
Inventor 董旭辉魏琴琴陈文志
Owner SANY GRP