CN219911007U

CN219911007U - Guide vane connecting rod device of water turbine

Info

Publication number: CN219911007U
Application number: CN202223361231.4U
Authority: CN
Inventors: 叶飞
Original assignee: Shiquan Hydroelectric Power Generation Factory Of Datang Shaanxi Power Generation Co ltd; Datang Shaanxi Power Generation Co Ltd
Current assignee: Shiquan Hydroelectric Power Generation Factory Of Datang Shaanxi Power Generation Co ltd; Datang Shaanxi Power Generation Co Ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-10-27
Anticipated expiration: 2032-12-14

Abstract

The utility model provides a guide vane connecting rod device of a water turbine, which comprises two connecting rods, a rotary sleeve, a first nut, a second nut, a first lug, a second lug, connecting pins, a pressing plate, a limiting plate and countersunk screws, wherein the rotary sleeve is sleeved on the two connecting rods and is used for connecting and adjusting the lengths of the two connecting rods, the first nut and the second nut are respectively sleeved on the connecting rods on two sides of the rotary sleeve, the rotary sleeve is fixed, the first lug and the second lug are respectively arranged at the ends of the two connecting rods far away from the rotary sleeve, the first lug and the second lug are axially penetrated and provided with a duct, the connecting pins are sleeved in the duct, the pressing plate is arranged at two ends of the connecting pins, screw holes are arranged at the two ends of the connecting pins and at the center of the pressing plate, fixing screws are arranged in the screw holes and are used for fixing the connecting pins and the pressing plate, and the limiting plate is arranged at the lower ends of the first lug and the second lug and the lug and are fixed through the countersunk screws. The guide vane gap can be conveniently and rapidly adjusted, the construction difficulty is reduced, and the potential safety hazard of unit operation is eliminated.

Description

Guide vane connecting rod device of water turbine

Technical Field

The utility model belongs to the technical field of water guide mechanism transmission mechanisms of water turbine sets, and particularly relates to a guide vane connecting rod device of a water turbine.

Background

In the prior art, a transmission system of a water guide mechanism of the suspended hydroelectric generating set is not provided with a control ring, when a guide vane is opened and closed, a main servomotor and an auxiliary servomotor respectively drive half of crank arms to act, the crank arms are connected by a fixed connecting plate, and the fixed connecting plate has the advantages of convenient installation, long-time operation of the set, closing and clamping sundries by the guide vane, and possibly enlarging a guide vane gap, so that a butterfly valve of a water inlet of the set is flat-pressed, shutdown of the set cannot be completed, and safe operation of the set is threatened, therefore, the guide vane gap needs to be adjusted, only the fixed connecting plate can be perforated again or replaced on the fixed connecting plate when the guide vane gap needs to be adjusted, and the guide vane gap adjustment method is complicated, so that the guide vane gap cannot be adjusted in small repair with short overhaul time.

Disclosure of Invention

The guide vane connecting rod device of the water turbine can conveniently and rapidly adjust the guide vane gap, reduces construction difficulty and eliminates potential safety hazards of unit operation.

The technical scheme of the utility model is as follows: the utility model provides a hydraulic turbine stator connecting rod device, includes two connecting rods, revolves cover, nut one and nut two, ear stem one and ear stem two, connecting pin, clamp plate, limiting plate and countersunk head screw, revolve the cover and establish on two connecting rods, connect and adjust two connecting rod lengths, nut one and nut two cover are established respectively on the connecting rod of revolve the cover both sides, and fixed the cover that revolves, ear stem one and ear stem two set up respectively and keep away from the cover end at two connecting rods, ear stem one and ear stem two link up along the axial and are equipped with the duct, the connecting pin cover is established in the duct, the clamp plate sets up the both ends at the connecting pin, the both ends of connecting pin and the central point of clamp plate are equipped with the screw hole, install set screw in the screw hole, with connecting pin and clamp plate fixed, the limiting plate sets up the lower extreme of ear stem one and ear stem two, through countersunk head screw fixed, the upper end clamp plate and limiting plate are fixed the axial position of ear stem one and ear stem two, be connected with the guide vane between the clamp plate of ear stem one and the lower extreme, there is the clamp plate between the clamp plate of two ears.

Further, the diameter of the pressing plate is larger than the diameters of the pore passages of the first lug and the second lug.

Further, the connecting pin is sleeved with a shaft sleeve, and the connecting pin is connected with the first lug and the second lug through the shaft sleeve.

Further, the middle of the first ear handle and the second ear handle protrudes outwards.

Further, the limiting plate is of a circular ring structure, and the diameter of the limiting plate is consistent with the diameters of the first end head and the second end head of the earstem.

Furthermore, the limiting plate and the lower ends of the first and second earstems are respectively provided with a plurality of fixing holes, and the countersunk head screws are arranged on the fixing holes to fix the lower ends of the first and second earstems with the connecting pins.

Further, a thrust pad is arranged at the joint of the countersunk head screw and the first lug and the second lug.

Compared with the prior art, the utility model has the beneficial effects that: the guide vane gap can be conveniently and rapidly adjusted, the construction difficulty is reduced, and the potential safety hazard of unit operation is eliminated.

Drawings

FIG. 1 is a schematic longitudinal section of a hydraulic turbine vane linkage assembly of the present utility model;

FIG. 2 is a top view of a turbine vane linkage assembly of the present utility model;

wherein: 1. the device comprises a fixing screw, 2, a pressing plate, 3, a connecting pin, 4, a thrust pad, 5, a countersunk screw, 6, a first lug, 7, a first nut, 8, a rotary sleeve, 9, a second nut, 10, a second lug, 11, a shaft sleeve, 12, a guide vane arm, 13 and a limiting plate.

Detailed Description

The present utility model will be described more fully hereinafter with reference to the accompanying drawings, in order to enable those skilled in the art to practice the utility model fully without the need for inventive faculty.

The specific embodiments of the utility model are: as shown in fig. 1-2, the hydraulic turbine guide vane connecting rod device comprises two connecting rods, a rotary sleeve 8, a first nut 7, a second nut 9, a first lug 6, a second lug 10, a connecting pin 3, a pressing plate 2, a limiting plate 13 and a countersunk screw 5, wherein the rotary sleeve 8 is sleeved on the two connecting rods to connect and adjust the lengths of the two connecting rods, the first nut 7 and the second nut 9 are respectively sleeved on the connecting rods on two sides of the rotary sleeve 8 to fix the rotary sleeve 8, the first lug 6 and the second lug 10 are respectively arranged at the ends of the two connecting rods far away from the rotary sleeve 8, the first lug 6 and the second lug 10 are axially penetrated and provided with a pore canal, the connecting pin 3 is sleeved in the pore canal, the pressing plate 2 is arranged at two ends of the connecting pin 3, screw holes are arranged at the two ends of the connecting pin 3 and the center position of the pressing plate 2, a fixing screw 1 is arranged in the screw holes to fix the connecting pin 3 and the pressing plate 2, the limiting plate 13 is arranged at the lower ends of the first lug 6 and the countersunk lug 10, the lower ends of the lug 10 are fixed through the fixing screws 5, and the limiting plate 13 is fixedly arranged at the positions of the first lug 2 and the lower end of the first lug 2 and the lower lug 2, and the first guide vane 13 and the lower end 13 are fixedly arranged between the first lug 2 and the second lug 2 and the lower end 13.

Further, the diameter of the pressing plate 2 is larger than the diameters of the pore passages of the first ear handle 6 and the second ear handle 10.

Further, a shaft sleeve 11 is sleeved on the connecting pin 3, and the connecting pin 3 is connected with the first lug 6 and the second lug 10 through the shaft sleeve 11.

Further, the middle of the first ear handle 6 and the second ear handle 10 protrudes outwards.

Further, the limiting plate 13 is in a circular ring structure, and the diameter of the limiting plate 13 is consistent with the diameters of the first end 6 and the second end 10 of the earstem.

Furthermore, the limiting plate 13, the first ear handle 6 and the second ear handle 10 are respectively provided with a plurality of fixing holes, and the countersunk head screw 5 is arranged on the fixing holes to fix the lower ends of the first ear handle 6 and the second ear handle 10 with the connecting pin 3.

Furthermore, a thrust pad 4 is arranged at the joint of the countersunk head screw 5, the first lug 6 and the second lug 10.

Further, the length of the connecting pin 3 is greater than the thickness of the first lug 6 and the guide vane arm 12, and the first lug 6, the limiting plate 13 and the guide vane arm 12 are tightly connected through the limiting plate 13.

The working principle of the utility model is as follows: one end of the connecting rod is connected to the guide vane arm 12, the other end of the connecting rod is connected to a pin of the control ring, the connecting rod is driven to rotate when the control ring rotates, the guide vane is driven to rotate by the connecting rod, the rotating sleeve 8 is arranged in the middle of the connecting rod, the length of the connecting rod can be changed by rotating the rotating sleeve 8, all guide vanes can be rotated at the same angle by adjusting the rotating sleeve 8 of each connecting rod, and therefore the aim of adjusting the gap of the guide vane is achieved.

While the preferred embodiments of the present utility model have been described above, it should be noted that the present utility model is not limited to the above-described specific embodiments, wherein the apparatus and structures not described in detail should be understood as being implemented in a common manner in the art; any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model will fall within the scope of the technical solution of the present utility model, without departing from the scope of the technical solution of the present utility model.

Claims

1. The utility model provides a hydraulic turbine stator connecting rod device, its characterized in that includes two connecting rods, revolves cover, nut one and nut two, earstem one and earstem two, connecting pin, clamp plate, limiting plate and countersunk head screw, revolve the cover and establish on two connecting rods, connect and adjust two connecting rod lengths, nut one and nut two cover are established respectively on the connecting rod of revolving the cover both sides, and fixed the cover that revolves, earstem one and earstem two set up respectively and keep away from the cover end soon at two connecting rods, earstem one and earstem two link up along the axial and are equipped with the duct, the connecting pin cover is established in the duct, the clamp plate sets up at the both ends of connecting pin, the central point of both ends of connecting pin and clamp plate is equipped with the screw hole, install set screw in the screw hole, it is fixed with connecting pin and clamp plate, the limiting plate sets up at the lower extreme of earstem one and earstem, through countersunk head screw is fixed, upper end clamp plate and limiting plate are fixed with the axial position of handle one and earstem two, be connected with between the clamp plate of handle one and the clamp plate of lower extreme, be connected with the clamp plate between the two clamp plates of earstem two, and the clamp plate has the control ring.

2. The turbine vane link assembly of claim 1 wherein the diameter of the pressure plate is greater than the diameter of the bore of the first and second lugs.

3. The guide vane connecting rod device of the water turbine according to claim 2, wherein the connecting pin is sleeved with a shaft sleeve, and the connecting pin is connected with the first lug and the second lug through the shaft sleeve.

4. A turbine vane linkage as claimed in claim 3 wherein the middle of the first and second lugs projects outwardly.

5. The hydraulic turbine vane link assembly of claim 4 wherein said limiting plate is of annular configuration, said limiting plate having a diameter corresponding to the diameter of the first and second ends of the lug.

6. The guide vane connecting rod device of the water turbine according to claim 5, wherein a plurality of fixing holes are correspondingly formed in the limiting plate and the lower ends of the first lug and the second lug, and the countersunk head screws are arranged on the fixing holes to fix the lower ends of the first lug and the second lug with the connecting pins.

7. The guide vane connecting rod device of a water turbine according to claim 6, wherein a thrust pad is arranged at the joint of the countersunk head screw and the first and second lugs.