CN201433846Y - Hydraulic Turbine Mechanical Barring Equipment - Google Patents

Abstract

The utility model discloses an electromechanical cranking device specially used for water turbines, which comprises a decelerating mechanism, a spline shaft, a clutch device and a connecting shaft. The decelerating mechanism is keyed to the spline shaft, and the spline shaft drives the connecting shaft through the clutch device. The deceleration mechanism is fixed on the casing of the turbine through the support frame. The spline shaft and the output shaft of the deceleration mechanism are connected by a key. The clutch device moves up and down along the spline shaft. The flange of the connecting shaft is connected to the end face of the main shaft of the turbine generator, and the portable electric control box is connected to the motor of the deceleration mechanism, so as to control the special electromechanical turning equipment for the turbine to drive the rotor of the turbine. The separate clutch design makes the clutching and disengagement convenient and fast when transmitting power. The transmission power is uniform and stable, the output speed is low, the output torque is large, the stop point of the disc rotor is accurate, there is no idle phenomenon, the measurement data is true and accurate, the portable electric control box is small, light, flexible in operation, and has a large moving range.

Description

Hydraulic Turbine Mechanical Barring Equipment

technical field

The utility model relates to a mechanical turning device, in particular to a hydraulic turbine mechanical turning device.

Background technique

In the installation of new units and the overhaul of old units in current hydropower stations, due to the inevitable errors in the manufacturing and installation process of the units, the axes of the units are tilted to varying degrees. And the level of the axis and the mirror plate has been preliminarily adjusted, and under the condition that the force of each tile of the thrust bearing is relatively uniform, the unit is turned to facilitate the measurement of the guide bearing, flange, collector ring, etc. to check the inclination of the axis Whether the degree meets the requirements and adjust it in time. However, due to the heavy weight of the rotor, driving traction is usually required to drive the rotor of large and medium-sized units, and the method of manpower pushing the barring is used for small units. Therefore this artificial mechanical barring is not only laborious, time-consuming, and inefficient, but also increases the labor intensity of the workman and increases the time limit for maintenance.

Contents of the invention

In order to overcome the deficiencies of the prior art, the utility model provides a hydraulic turbine mechanical turning equipment.

The technical scheme that the utility model solves its technical problem adopts is:

A hydraulic turbine mechanical cranking device includes a deceleration mechanism, the deceleration mechanism is connected with a spline shaft, and the spline shaft is engaged with a connecting shaft through a clutch device, and the connecting shaft is connected with the main shaft of the hydraulic turbine generator.

The clutch device is composed of a slider and a shift fork. The inner side of the slider is provided with a spline groove, and the spline groove is connected with the spline shaft. The other end surface of the inner side of the slider is provided with an engaging groove, and the engaging groove Cooperate with the engaging boss of the connecting shaft, the connecting shaft is connected with the main shaft of the hydro turbine generator.

The outer side of the slider is provided with a shift fork locking slot, and the slider slides up and down along the spline shaft driven by the shift fork.

A motor is arranged in the deceleration mechanism, and the input end of the motor is connected with the output end of the portable electric control box. The portable electric control box controls the motor rotation of the deceleration mechanism. The control panel of the portable electric control box is provided with a forward rotation button, forward rotation Jog button, reverse button, reverse jog button, stop button, reversing switch, indicator light.

The beneficial effects of the utility model are: the hydraulic turbine mechanical cranking equipment includes a deceleration mechanism, a spline shaft, a clutch device, and a connecting shaft, and a portable electric control box is used to connect the deceleration mechanism to drive the rotor of the hydroelectric generator unit to rotate, and the design is simple Practical, stable and beautiful appearance, easy equipment installation.

The separate clutch design makes the clutch convenient and fast when transmitting power. When separating, it can ensure that the measured rotor is not in contact and is completely in a free state. After the rotor rotates in place, the measurement data is true and accurate. The combination of the spline shaft and the slider makes the slider and the shaft slide up and down flexibly, and the power transmission is even and stable. The output speed is low, the output torque is large, the rotation is stable, the stopping point of the disc rotor is accurate, and there is no idle phenomenon. The portable electric control box is small, light, flexible in operation, and has a large range of movement, and it can be used for forward and reverse continuous cranking and forward and reverse jogging cranking.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of the utility model.

Detailed ways

Referring to Fig. 1, a hydraulic turbine mechanical cranking equipment is characterized in that it includes a speed reduction mechanism 1, the speed reduction mechanism 1 is connected with a spline shaft 2, and the spline shaft 2 is engaged with a connecting shaft 4 through a clutch device 3, and the The connecting shaft 4 is connected with the main shaft 7 of the hydraulic turbine generator. The flange end face of the reduction mechanism 1 is connected with the screw hole on the support plate of the support frame 5 , and the screw hole on the bottom plate of the support frame 5 is connected with the flange end face of the water turbine casing 6 top. The input end of the motor 11 of the reduction mechanism 1 is connected with the output end of the portable electric control box, and the portable electric control box controls the rotation of the motor 11 of the reduction mechanism 1, and the control panel of the portable electric control box is provided with a forward rotation button and a forward rotation point. Action button, reverse button, reverse jog button, stop button, reversing switch, indicator light. A portable electric control box is used to connect the motor of the deceleration mechanism to drive the rotor of the hydro-generator unit to rotate. The output speed is low, the output torque is large, the rotation is stable, the stopping point of the disc rotor is accurate, and there is no idle phenomenon. This design is not only simple Practical, stable and beautiful appearance, and make the equipment installation more convenient.

The inner side of the spline shaft 2 is provided with a keyway, and the outer side is a spline. The output shaft of the spline shaft 2 and the reduction mechanism 1 adopts a key connection mode. The clutch device 3 is composed of a slider 31 and a shift fork 32. A spline groove is arranged, and the spline groove is connected with the spline shaft 2. The outer side of the slider 31 is provided with a shift fork locking groove, the slider 31 slides up and down along the spline shaft 2, the other end surface of the inner side of the slider 31 has an engaging groove, and the end surface of the connecting shaft 4 has an engaging boss, the engaging boss and The engagement grooves of the slide block 31 are engaged, and the other end of the connecting shaft 4 is provided with a flange, and the flange is connected with the screw hole on the end surface of the hydraulic turbine generator main shaft 7 . The combination of the spline shaft and the slider makes the slider and the shaft slide up and down flexibly, the power transmission is even and stable, and the clutch is convenient and fast during power transmission. After moving in place, the measurement data is true and accurate.

Claims (5)

1. water turbine machinery turning gear, it is characterized in that comprising reducing gear (1), described reducing gear (1) is connected with splined shaft (2), and described splined shaft (2) is connected with a joggle spool (4) by engaging and disengaging gear (3), and described coupling shaft (4) is connected with hydraulic turbine generator main shaft (7).

2. water turbine machinery turning gear according to claim 1, it is characterized in that described engaging and disengaging gear (3) is made up of slide block (31) and shift fork (32), the inboard end of described slide block (31) is provided with spline, spline is connected with splined shaft (2), the inboard the other end end face of described slide block (31) has mesh groove, described mesh groove cooperates with the engagement boss of coupling shaft (4), and described coupling shaft (4) is connected with hydraulic turbine generator main shaft (7).

3. water turbine machinery turning gear according to claim 2 is characterized in that described slide block (31) outside is provided with shift fork screens groove, and described slide block (31) drives lower edge splined shaft (2) at shift fork (32) and slides up and down.

4. water turbine machinery turning gear according to claim 1, it is characterized in that being provided with in the described reducing gear motor (11), motor (11) input end is connected with the output terminal of portable electric control box, the motor (11) of portable electric control box control reducing gear (1) rotates, and described portable electric control box (11) control panel is provided with just changes button, normal inching turning button, invert button, reverse inching turning button, stop button, reverser, tutorial light.

5. water turbine machinery turning gear according to claim 1 is characterized in that described reducing gear (1) is fixed on water turbine shell (6) top by dunnage (5).