Diaphragm type long-travel unidirectional spring mechanism

A technology of spring mechanism and large stroke, which is applied in the direction of spring/shock absorber, mechanical equipment, shock absorber, etc., and can solve the problems of difficult design of elastic coefficient curve and small stroke

Inactive Publication Date: 2012-01-04
蔡元奇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the travel of this type of spring is small
On the other hand, due to the problems of the structure itself and the manufacturing process of the existing one-way spring, its elastic coefficient curve is difficult to design

Method used

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  • Diaphragm type long-travel unidirectional spring mechanism
  • Diaphragm type long-travel unidirectional spring mechanism
  • Diaphragm type long-travel unidirectional spring mechanism

Examples

Experimental program
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Embodiment Construction

[0020] image 3 Instructions marked in: double-sided rack 1, double-sided rack guide roller 2, chassis 3, driving shaft 4, working gear 5, internal gear 6, planetary gear 7, planetary gear shaft 8, sun gear 9, planet carrier 10 , Ring-shaped film belt 11, cylinder 12, gear 13, driven shaft 14, cover plate 15, rack 16.

[0021] Figure 4 — Figure 7 Explanation of the middle mark: I key 17, II key 18, III key 19, guide roller 20, connector 21, screw rod 22, self-locking nut 23, and IV key 24.

[0022] Invention principle: such as figure 1 As shown, under the action of external force F, the film belt supported by the cylinder is deformed, producing elastic restoring force. The relationship between the elastic recovery force and the transverse deformation δ of the film strip is:

[0023] 1

[0024] In the formula: T 0 is the initial tension on the film, A is the cross-sectional area of ​​the film, E is the elastic modulus of the film, δ is the lateral deformati...

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PUM

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Abstract

The invention discloses a diaphragm type long-travel unidirectional spring mechanism, which is characterized by a diaphragm elastic device, a rigidity output end gear rack mechanism, a displacement amplifying mechanism and a working end gear rack mechanism, wherein the diaphragm elastic device provides elastic rigidity for the whole mechanism, and consists of supporting cylinders, an annular filmbelt, a tension device and a connector; not less than 2 cylinders are fixed on a cabinet and used for supporting the annular film belt; one end of the connector is linearly contacted with the annularfilm belt, and the other end of the connector is in rigid connection with a rack; the rigidity output end gear rack mechanism consists of a gear rack mechanism, a rack is connected with a rigidity output connector, and the bottom of the rack is provided with guide rollers connected with the cabinet body; the displacement amplifying mechanism is a planet gear speed increaser, or a cylindrical gearspeed increaser; and the working end gear rack mechanism is used for converting rotary displacement into linear displacement. The structure is a unidirectional long-travel spring; moreover, an analytic expression can be provided for an elastic change curve of the spring, which is important for a design requiring accurate elastic change.

Description

technical field [0001] The invention relates to a one-way spring mechanism in the mechanical field. Background technique [0002] Springs are widely used in mechanical engineering and structural engineering. Simple spring forms include coil springs, torsion springs, and leaf springs. disc spring etc. The function of this type of spring is simple and cannot fully meet the needs of some projects. For some special requirements, it is often necessary to use a mechanism or structure to realize the function of the spring. Such as a one-way spring, this type of spring only provides the function of a spring in one direction, while the stiffness in the other two directions is relatively large. For example, one-way springs can be realized mechanically by adding a rigid jacket to the outside of the coil spring or adding a rigid lining to the inside of the coil spring, such as "Variable Stiffness Elastic System Simulator" (ZL200410093082.5). Another example: Some bearings used in b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F7/00F16H35/00F16H37/02
Inventor 蔡元奇沈理姣
Owner 蔡元奇
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