Adjustable precise position sensor

A sensor and adjustable technology, applied in the direction of using mechanical devices to transmit sensing components, can solve the problems of inconvenient on-site processing and high professional and technical requirements for debugging personnel, and achieve simple debugging, shorten debugging time, and eliminate errors and mistakes. Effect

CN102168992BActive Publication Date: 2013-01-23WUZHONG INSTR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2013-01-23

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Abstract

The invention relates to an electric operating mechanism used for industrial automation control instruments, particularly relates to an adjustable precise position sensor which comprises a right-angle frame (1), a feedback rod (2) and a fixing base (10), wherein a screw rod pair is arranged on one end of the right-angle frame (1); a screw nut (8) of the screw rod pair is fixedly connected to an adjustable pin shaft (9); the feedback rod (2) is provided with a sliding slot along the length direction; one end of the feedback rod (2) is connected to one end of the right-angle frame (1); the feedback rod (2) is sleeved on the adjustable pin shaft (9) through the sliding slot; a potentiometer fixing plate (6) is fixed on the fixing base (10); a potentiometer is fixed on the potentiometer fixing plate (6); and a feedback gear (5) is sleeved on the potentiometer. The adjustable precise position sensor can be used for replacing the original feedback parts. Meanwhile, by using the adjustable precise position sensor, the gear dropping phenomenon under the conditions of faults, installing, debugging and the like is avoided.
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Description

technical field

[0001] The invention relates to an electric actuator for industrial automation control instruments, in particular to an adjustable precision position sensor. Background technique

[0002] The existing electric actuators are connected by slider springs. There are chute on the upper and lower sides of the slider, which are stuck in the connecting plate and can only move back and forth in the direction of the chute. The potentiometer is installed on the slider. Tight on the slider, install a PTFE bushing on the potentiometer shaft, fix the feedback gear to the PTFE bushing with a collar, fix the slider on the mounting plate with a spring, and rely on the elasticity of the spring to make the feedback gear cooperate with it gear meshing.

[0003] When it is required to change the stroke, the gear on the feedback potentiometer needs to be replaced. One stroke corresponds to one specification of gear, which makes it inconvenient to handle on site. Moreover, the pot...

Examples

Embodiment Construction

[0011] The present invention will be described in further detail below in conjunction with accompanying drawing:

[0012] Such as figure 2 As shown, the present invention includes a right-angle frame 1, a lead screw pair is installed at one end of the right-angle frame 1, a nut 8 of the lead screw pair is fixedly connected with an adjustment pin 9, and a feedback rod 2 is arranged on the feedback rod 2 There is a chute along its length, one end of the feedback lever 2 is hinged to one end of the aforementioned right-angle frame 1, and the feedback lever 2 is fitted on the aforementioned adjustment pin shaft 9 through the chute; it also includes a fixed base 10. A potentiometer fixing plate 6 is fixed on the fixed base 10, a potentiometer is fixed on the potentiometer fixing plate 6, and a feedback gear 5 is set on the potentiometer; another guide rod is fixed on the fixed base 10, a guide groove is formed at one end of the guide rod, and a rack plate 4 passes through the gui...