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198results about How to "Wide range of angles" patented technology

Large slope lifting device for strip mine dump truck

The invention discloses a large slope lifting device for a strip mine dump truck. The large slope lifting device comprises a power lifting device, a guiding device, a limiting and positioning device, a monitoring and controlling device and a safety protection device. A motor and a drum hoist are arranged on the ground. U-steel tracks are laid on the slope of a mountain through sleepers. The U-steel tracks are divided into an upper part and a lower part, and the upper U-steel tracks and the lower U-steel tracks are provided with a first wheel-type trolley and a second wheel-type trolley respectively. A wire rope winds across guide wheels and fixed pulleys located on the first wheel-type trolley and the second wheel-type trolley to be connected with the drum hoist. According to the large slope lifting device for the strip mine dump truck, the lifting angle is large, the side slope of a mine field can be fully utilized, and thus the excavation amount of infrastructure is reduced. The limiting and positioning device can contribute to stability of mine cars in the lifting process. By means of large slope lifting, the transportation distance and time are greatly shortened, transportation efficiency is improved, and tail gas pollution is reduced. The monitoring and controlling device can control the safety protection device to act in the derailing process, and therefore safety during transportation is improved.
Owner:CHINA UNIV OF MINING & TECH

Actuating platform with functions of slight swing prevention and pointing regulation and actuating method

The invention relates to an actuating platform with functions of slight swing prevention and pointing regulation and an actuating method. The platform comprises actuating rods, a lower base, an upper platform, a flexible hinge support, second-stage diamond-shaped displacement amplification mechanisms, piezoelectric piles and eddy current displacement sensors, wherein lower base is connected with the upper platform by the flexible hinge support, the lower ends of the actuating rods are fixed on the lower base, the actuating rods are arranged at diagonal lines in a paired way, the upper ends of the actuating rods are connected with the upper platform by a flexible hinge, piezoelectric drivers comprising the piezoelectric piles and the second-stage diamond-shaped displacement amplification mechanisms are connected in series onto the actuating rods, and the eddy current displacement sensors are arranged aside the actuating rods. A displacement signal of the upper platform is acquired by the eddy current displacement sensors, the actuating rods are driven to output the displacement along an axial direction by the piezoelectric drivers comprising the piezoelectric piles and the second-stage diamond-shaped displacement amplification mechanisms, the piezoelectric piles arranged at the diagonal lines in a paired way actuate coordinatively, the upper platform is driven to rotate along a diagonal direction, and high-accuracy regulation of a two-dimensional pointing angle and active control on slight swing of the pointing angle can be achieved.
Owner:XI AN JIAOTONG UNIV

Refrigerator hinge

The invention relates to the technical field of refrigerator hinges, and in particular to a novel refrigerator hinge. The refrigerator hinge comprises a hinge head, a hinge base, a movable shaft, a movable shaft sleeve, a fixed shaft, a rocker, a spring, an upper spring base, a lower spring base and a supporting base. An interference fit assembly is composed of the rocker, the lower spring base and the supporting base, and in other words, when hinge assembling is finished, prefabricated damping force is formed between the rocker and the lower spring base; and when a door body is opened or closed, sliding friction force is produced on the contact face of the rocker and the lower spring base, the sliding friction force can effectively balance elasticity of the spring, reduce the door body sudden accelerated rotation caused by the sudden change of the elasticity of the spring and reduce the door body impact force, and the service life of the hinge and the door body is prolonged. When the door body is stopped in a suspended manner, the static friction force is generated on the contact face of the rocker and the lower spring base, and due to the fact that the static friction force can be changed along with the pressure of the door body and the like, the suspended stopping angle range of the door body can be effectively enlarged, and therefore the refrigerator hinge can be suitable for various door body structures.
Owner:QINGDAO HIRON COMML COLD CHAIN

Electric bed attitude control system and method based on cloud computing

The invention relates to an electric bed attitude control system and a control method based on cloud computing. The system comprises a bed body terminal, an intelligent terminal, a cloud end database and a cloud computing server, wherein the bed body terminal, the cloud end database and the cloud computing server are connected to the intelligent terminal. According to the electric bed attitude control system provided by the invention, the bed body terminal can be used for comparing a command signal, which is transmitted from the intelligent terminal, with a recognition signal of the bed body terminal, so that movement attitudes of an electric bed are controlled, and attitude information of the electric bed is uploaded to the intelligent terminal; in addition, by virtue of the intelligent terminal, feedback signals can be transmitted to and stored in the cloud end database; meanwhile, by virtue of the cloud computing server, the attitude information, which is stored in the cloud end database, is read and user's using habits are analyzed so as to recommend optimum attitude data to a user for user's selection; and with the application of the electric bed attitude control system, current movement attitudes of the electric bed can be reflected in real time, so that the electric bed is controlled precisely and intuitively.
Owner:成都华信高科医疗器械有限责任公司

Air guiding device for air-cooled refrigerator and air-cooled refrigerator

The invention discloses an air guiding device for an air-cooled refrigerator and the air-cooled refrigerator, and relates to the technical field of refrigerators. The device is capable of automatically adjusting the air outlet direction of an air duct of the refrigerator, and the operation is labor-saving and convenient. The air guiding device for the air-cooled refrigerator comprises a fixing plate, an air guiding plate assembly, a sliding member and a driving member, and a first air outlet is formed in the fixing plate; the air guiding plate assembly comprises a horizontal air guiding plateand a vertical air guiding plate, and the horizontal air guiding plate and the vertical air guiding plate are rotatably connected to the first air outlet and stacked in the air outlet direction; the sliding member is slidably connected to the fixing plate, the sliding member is respectively in drive connection with the horizontal air guiding plate and the vertical air guiding plate, when the sliding member slides in the first direction, the horizontal air guiding plate can be driven to swing upward and downward, and the vertical air guiding plate can be driven to swing left and right; the driving member can drive the sliding member to slide in the first direction with respect to an air duct cover plate. The device can be used for adjusting the air supply direction of the air-cooled refrigerator.
Owner:HISENSE(SHANDONG)REFRIGERATOR CO LTD
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