A Curved Surface Constant Force Mechanism
A surface and component technology, applied in mechanical pressure/force control, non-electric variable control, instruments, etc., can solve the problems of low reliability, complex structure, large volume, etc., achieve simple principle and structure, high reliability, The effect of reducing the size of the mechanism
Inactive Publication Date: 2017-06-16
SICHUAN UNIV
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Problems solved by technology
Mechatronic control can achieve precise control of force through feedback, but in general, the structure is more complicated, the volume is larger, and the reliability is not high
The gravity balance method uses the gravity of the weight as the input of the constant force, which can obtain high precision, but this kind of device has high requirements for the installation position, and it is difficult to meet the actual application conditions
Method used
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Embodiment Construction
[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0019] Such as figure 1 As shown, the present invention provides a structural form of an embodiment. In this embodiment, the constant force mechanism mainly includes a base assembly, a thrust assembly and a constant force assembly;
[0020] The base assembly is composed of a cover plate (1), an outer cylinder (2) and a bottom plate (3); the cover plate (1), the outer cylinder (2) and the bottom plate (3) are fixed in sequence;
[0021] The thrust assembly is composed of screw (4), upper limit rod (5), spring (6), lower limit rod (7) and wedge assembly; screw (4), upper limit rod (5), spring (6) , the lower limit rod (7) and the wedge assembly are connected in sequence; the upper limit rod (5) is connected with the cover plate (1) through the screw (4), and the wedge assembly is in contact with the chute in the outer cylinder (2);
[0022] The wedge assembly...
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The invention provides a curved surface constant force mechanism, which is composed of a base assembly, a thrust assembly and a constant force assembly; the base assembly is composed of a cover plate, an outer cylinder and a bottom plate, and each part is fixed in sequence; the thrust The assembly is composed of screws, upper limit rods, springs, lower limit rods and wedge components, and each part is connected in sequence; the wedge component is composed of wedges, rolling bearings and mandrels, and the rolling bearings are installed on the wedges through the mandrel; thrust The component is installed in the base component; the constant force component is composed of a roller component and a curved push rod, and the roller component is in contact with the curved push rod; the roller component is composed of a support frame, a rolling bearing and a mandrel, and the rolling bearing passes through the core The shaft is mounted on the wedge; the constant force assembly is installed in the base assembly and contacts the thrust assembly. The invention has the advantages of small volume, simple structure, high reliability and no limitation of installation position.
Description
technical field [0001] The invention relates to a constant force loading mechanism, in particular to a curved surface constant force mechanism. Background technique [0002] Constant force mechanisms are widely used in many fields, such as roll paper, material testing, aerospace equipment, thermal power generation, etc., and have an important impact on the safety and reliability of equipment. And the method that can obtain constant force at present has: methods such as mechatronics control, gravity balance. Mechatronics control can achieve precise force control through feedback, but in general, the structure is relatively complex, the volume is large, and the reliability is not high. The gravity balance method uses the gravity of the weight as the input of the constant force, which can obtain high precision, but this kind of device has high requirements on the installation position, which is difficult to meet the actual application conditions. Contents of the invention ...
Claims
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IPC IPC(8): G05D15/00
Inventor 刘洋黄春强姚进赵勇吴杰
Owner SICHUAN UNIV