A torque control linear motion conversion mechanism for valve electric device
A technology of linear motion and torque control, applied in the direction of valve device, transmission device, valve operation/release device, etc., can solve the problem of large rotation angle range, etc., and achieve the effect of high working reliability and simple mechanism structure
Active Publication Date: 2017-12-01
天津市北方阀门控制设备有限公司
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Problems solved by technology
[0003] The invention designs and develops a torque-controlled linear motion conversion mechanism for valve electric devices, which overcomes the defect that the existing screw mechanism is not suitable for reciprocating linear motion with small displacement and requires a large output rotation angle range , can easily realize the transformation of linear motion with small displacement changes into rotational motion with large rotation angle changes in any direction in space
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[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0019] like figure 1 As shown, the present invention provides a torque-controlled linear motion conversion mechanism for a valve electric device, including a linear motion rod 110 , a first connecting rod 120 , a second connecting rod 130 and a torque disc 140 .
[0020] The linear motion rod 110 is constrained by the linear pair, so that the linear motion rod 110 can only move linearly along its own axis. Both the first connecting rod 120 and the second connecting rod 130 are constrained by a pair of cylinders so that they can rotate around their own axes.
[0021] The linear motion rod 110, the first connecting rod 120 and the second connecting rod 130 are all installed in the same housing, and the installations for the linear motion rod 110, the first connecting rod 120 a...
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The invention discloses a torque control rectilinear movement transferring mechanism used for an electric valve device. The torque control rectilinear movement transferring mechanism comprises a rectilinear movement rod capable of moving rectilinearly along the axis of the rectilinear movement rod, a first connecting rod and a second connecting rod, wherein the first connecting rod is capable of rotating around the axis of the first connecting rod; a first transferring part and a second transferring part are arranged at the two ends of the first connecting rod correspondingly; the first transferring part is matched with the rectilinear movement rod; the rectilinear movement rod drives the first connecting rod to rotate through the first transferring part when the rectilinear movement rod moves rectilinearly; the second connecting rod is capable of rotating around the axis of the second connecting rod; a third transferring part is arranged on the second connecting rod; the second transferring part is matched with the third transferring part so that the second transferring part can drive the second connecting rod to rotate. The torque control rectilinear movement transferring mechanism provided by the invention is simple in structure, high in operational reliability and capable of easily transferring the rectilinear movement with small displacement changes into rotational movement with large rotation angle changes in any space direction.
Description
technical field [0001] The invention relates to the technical field of an operation conversion mechanism of a torque control mechanism of a valve electric device, in particular to a mechanism for converting linear motion into spatial rotational motion. Background technique [0002] At present, the conversion of linear motion to rotary motion is mostly done by a screw mechanism. Its main disadvantages are low efficiency and high machining accuracy requirements, and the screw mechanism can only convert linear motion into rotary motion perpendicular to the direction of linear motion. When the linear motion is a reciprocating motion, in order to avoid self-locking of the mechanism, the helix angle must be greater than the equivalent friction angle, which greatly limits the range of rotation angle. Therefore, the screw mechanism cannot be well applied to occasions where the displacement of the reciprocating linear motion is small and the rotational angle range of the output is re...
Claims
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IPC IPC(8): F16K31/04F16K31/44F16H21/16
CPCF16H21/16F16K31/04F16K31/44
Inventor 崔立强
Owner 天津市北方阀门控制设备有限公司