CN201990987U

CN201990987U - Screw rod type hoist controlled by torque load

Info

Publication number: CN201990987U
Application number: CN2011200912485U
Authority: CN
Inventors: 陈荣娜; 黄振东
Original assignee: ANHUI PROVINCE LIUAN HENGYUAN MACHINERY Co Ltd
Current assignee: ANHUI PROVINCE LIUAN HENGYUAN MACHINERY Co Ltd
Priority date: 2011-03-31
Filing date: 2011-03-31
Publication date: 2011-09-28
Anticipated expiration: 2021-03-31

Abstract

The utility model belongs to the field of a hoist for hoisting a hydraulic gate, in particular to a screw rod type hoist controlled by torque load. The screw rod type hoist comprises a base, a case, worm and gear components, a lift screw rod, a motor and a torque sensor, wherein the worm and gear components are arranged in the case; the lift screw rod is matched with a nut in the worm by screw threads; and the motor is used for providing power; the torque sensor is of a directly connected coupling structure and arranged between any two of the power input end of a worm shaft, a driving shaft and a power output shaft. Therefore, the torque can be measured timely to realize the purpose of controlling the torque load of the hoist; the screw rod type hoist has a simple structure, acts sensitively and operates stably and reliably.

Description

The worm-type open-close machine of moment of torsion load control

Technical field

The utility model belongs to the headstock gear field of lifting water conservancy gate, is specifically related to a kind of worm-type open-close machine of moment of torsion load control.

Background technology

Headstock gear is widely used in all kinds of large-scale plumbing, Hydraulic and Hydro-Power Engineering, reaches the purpose that opens and closes gate by the lifting of controlling all kinds of gates.It is divided into by type: hydraulic hoist, winch hoist, screw open-close machine etc.Wherein, screw open-close machine is convenient to operation owing to it and use cost is cheap is widely used.Yet screw open-close machine is owing to self can not provide the loading signal, the actual keying load of headstock gear can only change by the electric current and the mechanical sounds of motor, judge with operating personnel's experience, high and difficult grasp of error rate, the appearance of these indexs simultaneously means that also headstock gear has suffered certain damage, there is potential safety hazard,, even burn-down of electric motor and great personnel casualty accidents takes place often because of overload makes bent screws.

Summary of the invention

The purpose of this utility model provides a kind of in good time survey and turns round to realize the screw open-close machine of load control.

For achieving the above object, the utility model has adopted following technical scheme: a kind of worm-type open-close machine of moment of torsion load control, comprise support, cabinet, be arranged at worm and gear assembly in the cabinet, with the turbine inner nut between the lifting screw of formation threaded engagement and the motor that power is provided, described screw open-close machine also comprises torque sensor, described torque sensor is the associated mode coupler structure, is installed among worm shaft power intake, power transmission shaft and the power output shaft three arbitrarily between the two.

The beneficial effects of the utility model are: after adopting said structure, the torque signal of beaming back by torque sensor, can accurately measure, show, the control headstock gear opens and closes the loading information of gate, the automatic updating that helps lend some impetus to screw open-close machine improves, the function of expansion headstock gear, making headstock gear adapt to requirements of the times plays a greater role in hydraulic engineering, the realization gate is controlled automatically, improve the engineering flood control, irrigate, the dispatch control benefit and the level of generating, realized the hydraulic engineering modern management, simultaneously, the utility model also has simple in structure, be active in one's movements, safe and reliable, advantage such as easy to use.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a partial sectional view of the present utility model;

Fig. 3 is the sectional view of torque sensor;

Fig. 4 is the left view of Fig. 3.

The specific embodiment

A kind of worm-type open-close machine of moment of torsion load control, comprise support, cabinet 10, be arranged at worm and gear assembly in the cabinet 10, with the turbine inner nut between the lifting screw 20 of formation threaded engagement and the motor 30 that power is provided, it is characterized in that: described screw open-close machine also comprises torque sensor 40, described torque sensor 40 is the associated mode coupler structure, is installed among worm shaft power intake, power transmission shaft and the power output shaft three arbitrarily between the two.Shown in Fig. 1-2.

Be simplified design, under the prerequisite that guarantees normal operation of the present utility model, reduce cost of manufacture of the present utility model, as further preferred version of the present utility model, as shown in Figure 2, described power output shaft and the coaxial setting of worm shaft power intake, described torque sensor 40 1 ends are connected with the worm shaft power intake with the power output shaft other end, because coaxial setting between power output shaft and worm screw, having avoided the mistake collection of torque sensor 40 for additional torque, is the actual torsion of the keying gate of headstock gear thereby make the survey data of gained.

Further, described torque sensor 40 profiles are cannula-like shown in Fig. 2-4, and its inwall axially is provided with keyway along it, and are connected by key with the worm shaft power intake with power output shaft respectively, thereby guarantee the transmission of moment of torsion and the collection of signal.

In real work, torque sensor 40 is passed to the loading instrument by the shielded signal line with torque signal, and the staff can set the specified hoisting capacity of headstock gear in advance on the loading instrument.When headstock gear open and close gate and actual load reach setting 90% the time; when loading instrument alarm, actual load reached specified hoisting capacity 110%, the loading instrument cut off the headstock gear main circuit automatically; make headstock gear out of service, thus the purpose that reaches the protection headstock gear and stop potential safety hazard.

Claims

1. the worm-type open-close machine of moment of torsion load control, comprise support, cabinet (10), be arranged at worm and gear assembly in the cabinet (10), with the turbine inner nut between the lifting screw (20) of formation threaded engagement and the motor (30) that power is provided, it is characterized in that: described screw open-close machine also comprises torque sensor (40), described torque sensor (40) is the associated mode coupler structure, is installed among worm shaft power intake, power transmission shaft and the power output shaft three arbitrarily between the two.

2. worm-type open-close machine according to claim 1 is characterized in that: described power output shaft and the coaxial setting of worm shaft power intake, described torque sensor (40) one ends are connected with the worm shaft power intake with the power output shaft other end.

3. worm-type open-close machine according to claim 1 and 2 is characterized in that: described torque sensor (40) profile is cannula-like, and its inwall axially is provided with keyway along it, and is connected by key with the worm shaft power intake with power output shaft respectively.