CN200961559Y

CN200961559Y - Manual and electric speed regulator for hydraulic turbine

Info

Publication number: CN200961559Y
Application number: CNU2006201214969U
Authority: CN
Inventors: 项美根
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-01
Filing date: 2006-07-01
Publication date: 2007-10-17
Anticipated expiration: 2016-07-01

Abstract

The utility model discloses a hydraulic turbine hand electric speed regulator, mainly comprising a worm wheel decelerator, a hand electric switching mechanism, a stroke control mechanism, an opening indicting mechanism, a torque controlling mechanism and so on. The utility model is characterized in that a decelerating rotating kinematic pair composed of a worm wheel and a worm screw is arranged in the tank body; a shifting fork is cooperated to sleeve on the worm screw; a shifting fork shaft is connected with a handle through the shifting fork; a ring trough is arranged in the shifting fork and movably cooperated with a roller; one end of a locating arm is contacted with the tank body, and the other end is connected with the shifting fork; one end of the worm screw is provided with a dished spring; a transmission rack is meshed with a gear, and the gear is contacted with a gear of the torque controlling mechanism; one end of a spline shaft is meshed with an inner spline of the worm screw; a gear is disposed on the end of the spline and meshed with a motor gear on the motor; and a hand wheel shaft is connected with a hand wheel small bevel gear, a large bevel gear, a hand large gear and a hand small gear, which composes a hand mechanism. The utility model has the advantages of compact structure, high automatic degree, convenient operation, and so on.

Description

A kind of water turbine torch moves speed regulator

Technical field

The utility model relates to a kind of equipment that water turbine governing is made function of controlling, and relates in particular to the moving speed regulator of a kind of water turbine torch that middle-size and small-size hydroelectric power plant is used for water turbine governing.

Background technique

Hydrogovernor is to regulate the equipment of hydraulic turbine discharge and fluidised form thereof by the stator mechanism of water turbine and paddle mechanism, this controlling device needs higher power, reason owing to convention, even small-sized speed regulator also adopts mechanical-hydraulic mechanism mostly, and often adopt one-level or the bigger hydraulic actuator of 2-level hydraulic, above-mentioned product all is to carry out work with the translative mode of electric energy → hydraulic pressure energy → mechanical energy, and its shortcoming and defect is, complex structure, volume are big.Commercially available also have a mechanical hydrogovernor, (as accompanying drawing 1) but lack functions such as torque limit, the moving switching of torch, aperture indication, the working principle of most of speed regulator is: power supply orders about motor start-up, drive drive pulley, its driven pulley that utilizes v belt to drive on the speed governing screw mandrel is rotated, remove to be connected jaw in the water turbine by the turning block installed on the speed governing screw mandrel and reciprocal slide block again, make jaw on the speed governing screw mandrel, do orientation movement, reach the function of adjusting.When stroke puts in place, by the action of position limit switch control speed regulating mechanism.Such working state is that conventional general-purpose motor requires its power big to what power was provided, thereby causes shortcomings such as speed regulator is bulky, sensation is heavy, operation is hard, poor reliability.

Summary of the invention

Shortcomings such as the hydrogovernor device volume is huge, sensation is heavy, operation is hard in order to overcome, poor reliability, the utility model provides a kind of water turbine torch to move speed regulator, not only volume is little, automaticity is high for the moving speed regulator of this water turbine torch, and operation is simple and reliable.

In order to realize above-mentioned purpose, the utility model is that what to adopt is that starting torque is big, overload capacity strong, the motor special of short time duty, mainly is made up of worm speed reducer, the moving switching mechanism of torch, torque controling mechanism etc.; It is characterized in that: in the casing Worm gear case, be provided with respectively and worm gear, output shaft that worm screw is connected and worm gear, the deceleration rotary motion pair is formed in the output shaft engagement that worm screw is connected, the shift fork engage sleeves is contained on the worm screw, declutch shift shaft links to each other with handle by shift fork, being provided with its annular groove of annular groove in shift fork cooperates with roller is movable, one end of positioning arm contacts with casing, the other end is connected with shift fork, an end is provided with belleville spring on worm screw, its the other end contacts with the spring end cap, the gear combination that driving rack is meshed with one, gear contacts with gear on the torque controling mechanism, one end of spline and the internal spline of worm screw are meshed, the other end contacts with bearing on the casing, splined end is provided with gear, its gear is meshed with motor gear on the motor, hand wheel shaft connects the handwheel bevel pinion, bevel gear wheel, manual gearwheel, manually small gear consists of man-operated mechanism, Stroke Control portion cover, torque control device cover, aperture instruction unit cover is installed in respectively on the suitable position of casing, and potentiometer connects electric controller by tenminal block can send the control point signal.

Adopting above-mentioned scheme, after the transmission of one-level gear second-stage worm gear worm screw, improved the transmission efficiency of speed regulating mechanism by definite-purpose motor, thereby complete machine weight is reduced; Utilize the counter controls stroke: the rotation number of turns that the stroke of output shaft can be as required, adjust arbitrarily; The function of the worm screw axial float dish spring of torque controling mechanism can make the torque mechanism action, cuts off the electricity supply, and makes the motor stall, and the stator mechanism or the blade mechanism of having played protection motor or water turbine are not damaged; Manually control automatically switch to electronic, and after switching location automatically, manual, electronic mutual noninterference guarantees that handwheel can not rotate when electronic, has improved the reliability of equipment operation work, prevents unexpected accident.

Description of drawings

Below in conjunction with accompanying drawing the moving speed regulator of the utility model water turbine torch is further described.

Fig. 1 is the sectional drawing of commercially available hydrogovernor.

Fig. 2 is the sectional drawing of the plan view of the moving speed regulator of the utility model water turbine torch.

Fig. 3 is the sectional drawing on the plan view top of Fig. 2.

Fig. 4 is another view that control mechanism is refused in Fig. 2 plan view top surface and installation aperture indicating device, range controlling mechanism, commentaries on classics.

Be denoted as among the figure: 1, casing, 2, motor, 3, splined shaft, 4, worm screw, 5, output shaft one, 6, handwheel, 7, handle, 8, the case cover, 9, range controlling mechanism, 10, torque controling mechanism, 11, aperture indicating device, 12, Worm gear case, 13, belleville spring, 14, the spring end cap, 15, driving rack, 16, gear, 17, worm gear, 18, bearing, 19, gear, 20, motor gear, 21, shift fork, 22, manual small gear, 23, bevel gear wheel, 24, bevel pinion, 25, manual gearwheel, 26, hand wheel shaft, 27, the stroke gear, 28, the aperture gear, 29, potentiometer, 30, output shaft two, 31, worm screw, 32, worm gear, 33, positioning arm, 34, roller, 35, declutch shift shaft, 36, annular groove.

Embodiment

In casing (1) and Worm gear case (12), the output shaft one (5) that is connected with worm gear (17), worm screw (4) is set; The deceleration rotary motion pair is formed in worm gear (32), worm screw (31) and output shaft two (30) engagements that are connected.

Gear on the range controlling mechanism (9) on the casing (1), the gear (28) in the aperture indicating device (11) mesh with stroke gear (27) respectively, and potentiometer (29) output electrical signal is connected with electric control box.

Shift fork (21) engage sleeves is contained on the worm screw (4), declutch shift shaft (35) links to each other with handle (7) by shift fork (21), establish its annular groove of annular groove (36) and cooperate with roller (34) is movable in shift fork (21), an end of positioning arm (33) contacts with casing (1), and the other end is connected with shift fork (21).

Be provided with belleville spring (13) at the last end of worm screw (4), its other end contacts with spring end cap (14), driving rack (15) and a gear that is meshed (16) combination, and gear (16) contacts with gear on the torque controling mechanism (10).

The internal spline of one end of splined shaft (3) and worm screw (4) is meshed, and the other end contacts with bearing (18) on the casing (1), and splined shaft (3) end is provided with gear (19), and its gear is meshed with motor gear (20) on the motor (2).

Hand wheel shaft (26) connects handwheel (6) bevel pinion (24), bevel gear wheel (23), manually gearwheel (25), manual small gear (22) consist of man-operated mechanism.

Claims

1, the moving speed regulator of a kind of water turbine torch of the utility model mainly is made up of worm speed reducer, the moving switching mechanism of torch, range controlling mechanism, aperture indicating device, torque controling mechanism etc.; It is characterized in that: in casing (1), Worm gear case (12), the deceleration rotary motion pairs are formed in output shaft two (30) engagements that the output shaft one (5) that setting is connected with worm gear (17), worm screw (4) is connected with worm gear (32), worm screw (31).

2, the moving speed regulator of a kind of water turbine torch according to claim 1, it is characterized in that: the shift fork (21) on the moving switching mechanism of described torch is sleeved on the worm screw (4), declutch shift shaft (35) links to each other with handle (7) by shift fork (21), establishing its annular groove of annular groove (36) in shift fork (21) cooperates with roller (34) is movable, one end of positioning arm (33) contacts with casing (1), and the other end is connected with shift fork (21).

3, the moving speed regulator of a kind of water turbine torch according to claim 1, it is characterized in that: described torque controling mechanism is provided with belleville spring (13) at the last end of worm screw (4), its the other end contacts with spring end cap (14), driving rack (15) and a gear that is meshed (16) combination, and gear (16) contacts with gear on the torque controling mechanism (10).

4, the moving speed regulator of a kind of water turbine torch according to claim 1, it is characterized in that: splined shaft (3) end is provided with gear (19), and its gear is meshed with motor gear (20) on the motor (2).