Automatic conveying chain tensioning device for special vehicle
A technology of automatic tensioning device and special vehicle, which is applied in conveyors, transportation and packaging, etc., can solve the problems of falling chain failure rollers, derailment failures, shortened life and other problems, and achieve reliable operation, prevent tooth skipping, and simple structure Effect
Pending Publication Date: 2019-12-03
山东铁马特种车辆制造有限公司
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Problems solved by technology
[0003] Some special vehicles such as dump trucks drive the unloading device through the conveyor chain to unload the materials in the vehicle. The traditional tensioning system that changes the sag of one side of the conveyor chain is not easy to adjust, especially the center of the main and driven sprocket shafts. The distance is large and the tension adjustment stroke is limited by the installation space. For example, under vehicle conditions, and when forward and reverse reciprocating operation is required, the tensioning system cannot achieve the expected tensioning effect, making the operation of the conveyor chain unstable. , high noise, shortened life span, and even tooth skipping, chain drop failure and roller derailment failures
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[0017] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the application.
[0018] See Figure 1 to 4 Is a schematic diagram of the structure of the present invention, figure 1 Section A-A in the middle, figure 1 Sectional view at the middle BB, schematic diagram of the structure of the transition state of forward and reverse conversion, which includes the sliding guide rail of the driving device base, the sliding wear sleeve of the driving device base, the driving device base, the piston rod of the tensioning hydrau...
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The invention discloses an automatic conveying chain tensioning device for a special vehicle. Two driving device base sliding guide rails are arranged at the two ends of the inner side of the rack correspondingly. A driving device base is arranged between the two driving device base sliding guide rails; a driving device is arranged above the driving device base; the outer sides of the two ends ofthe driving device base are connected with two driving device base sliding wear-resisting sleeves correspondingly. The two driving device base sliding wear-resistant sleeves are respectively contactedwith the two driving device base sliding guide rails; two tensioning device hinging frames are arranged at the two ends of the driving device respectively and connected with two tensioning hydrauliccylinder piston rods through pin shafts; according to the conveying chain tensioning device, tooth jumping, chain falling failure and conveying chain roller derailment faults are effectively prevented, the structure is simple, work is reliable, a conveying chain normally operates in one direction, and the function that the tensioning force of the conveying chain can be automatically adjusted in the forward and reverse conversion process is achieved.
Description
Technical field [0001] The invention relates to the technical field of special vehicles, in particular to a conveyor chain automatic tensioning device for special vehicles. Background technique [0002] Special vehicles refer to vehicles that exceed the design vehicle limits in terms of outer dimensions, weight, etc., and special purpose vehicles that are specially made or specially modified, equipped with fixed equipment, and whose main function is not to carry people or transport goods. Special vehicles generally have special signs or special vehicles, which refer to vehicles that are responsible for special services and hang special vehicle number plates, install and use alarms and sign lamps, such as ambulances, fire trucks, police cars, engineering rescue vehicles, and military supervision vehicles Wait. [0003] Some special vehicles such as dump trucks use conveyor chains to drive unloading devices to unload the materials in the vehicles. The traditional tensioning system t...
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IPC IPC(8): B65G23/44
CPCB65G23/44
Inventor 杨学王培建王培珍赵华王方敏
Owner 山东铁马特种车辆制造有限公司