CN221220564U - Quick-closing valve shifting device of steam turbine - Google Patents

Abstract

The utility model discloses a quick-closing valve shifting device of a steam turbine, which comprises a vertical rod, wherein a connecting cross rod connected with a push disc is integrally formed at one end of the vertical rod in the vertical direction, a cavity is formed in the vertical rod, a first motor is fixedly arranged at the top end of the vertical rod, a first screw rod is fixedly connected to the inner part of the cavity in a penetrating manner, a bearing seat is fixedly connected to the inner wall of the cavity and positioned below the first screw rod, a second screw rod is rotatably connected to the inner part of the bearing seat, a driven bevel gear is fixedly connected to the outer part of the bearing seat in a penetrating manner at one end of the second screw rod, and a motor seat is fixedly arranged at the outer side of the vertical rod corresponding to the position of the driven bevel gear. This quick valve toggle device of closing of steam turbine, structural design is reasonable, convenient to use adopts the electrically driven mode to realize the fast adjustment to spacing slider position, has improved availability factor to but two spacing slider positions of accurate control, and then satisfies the user demand comprehensively.

Description

Quick-closing valve shifting device of steam turbine

Technical Field

The utility model relates to the technical field of turbine equipment, in particular to a quick-closing valve shifting device of a turbine.

Background

The patent document CN202122993374.6 discloses a 'steam turbine quick-closing valve shifting device', which has the characteristics of reliable operation, difficult falling and convenient adjustment. The technical proposal is as follows: quick-closing valve toggle device of steam turbine, its characterized in that: the device comprises a push rod consisting of a connecting rod and an adjusting rod which are mutually perpendicular, wherein a clamping groove axially extending to the end part is formed in the connecting rod, the connecting rod is inserted on a push plate through the clamping groove, the connecting rod is fixed with the push plate through a first fastening piece, and two limit sliding blocks are fixed with the adjusting rod through a second fastening piece.

This patent has some problems when using, say at every turn when carrying out position control to spacing slider, all need to dismantle the bolt and then fix, and is comparatively time consuming and laborious, and there is the clearance again if it offers a plurality of intervals that are used for the hole of location between, can't accurately adjust the position of two spacing sliders, for this reason we have proposed a steam turbine quick-closing valve toggle device to solve the problem that proposes among the above-mentioned background art.

Disclosure of utility model

The utility model aims to provide a quick-closing valve shifting device of a steam turbine, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the quick-closing valve shifting device for the steam turbine comprises a vertical rod, wherein one end of the vertical rod is integrally formed with a connecting cross rod connected with a push disc in the vertical direction, a cavity is formed in the vertical rod, a first motor is fixedly installed at the top end of the vertical rod, a first screw rod is fixedly connected to the inside of the cavity through an output shaft of the first motor, a bearing seat is fixedly connected to the inner wall of the cavity and positioned below the first screw rod, a second screw rod is rotatably connected to the inside of the bearing seat, one end of the second screw rod is fixedly connected with a driven bevel gear through the outside of the bearing seat, a motor seat is fixedly installed at the outer side of the vertical rod corresponding to the driven bevel gear, a second motor is fixedly installed at the outer side of the motor seat, and a driving bevel gear matched with the driven bevel gear is fixedly connected to the inside of the cavity through an output shaft of the second motor;

and the first screw rod and the second screw rod are respectively connected with a moving assembly along axial threads.

Further, the movable assembly comprises a threaded sleeve, the threaded sleeve is in threaded connection with the surface of the first screw or the second screw, connecting rods are symmetrically arranged on the outer side of the threaded sleeve, one ends of the connecting rods penetrate through the cavity and extend to the outer side of the vertical rod, one ends of the two connecting rods are fixedly connected through a movable ring, a limit sliding block body is arranged on the outer side of the movable ring, and the limit sliding block body is fixedly connected on the outer side of the movable ring through two bolts.

Further, the position of the vertical rod corresponding to the connecting rod is provided with a through groove matched with the vertical rod, and the two limit sliding block bodies are oppositely arranged in the direction.

Further, reinforcing ribs are fixedly connected to the top and the bottom of the corresponding connecting rod on the inner wall of the movable ring, and one side, close to the connecting rod, of each reinforcing rib is fixedly connected with the connecting rod.

Further, a sealing ring is fixedly connected to the inner wall of the cavity at a position corresponding to the output shaft of the first motor, and dust covers are arranged on the outer sides of the first motor and the second motor.

Compared with the prior art, the utility model has the following beneficial effects:

When the position of the upper limit sliding block body is required to be adjusted, the first motor is started, the output shaft drives the first screw rod to rotate, the threaded sleeve connected onto the first screw rod can drive the movable ring to move vertically under the guidance of the connecting rod and the through groove, and in the same way, when the position of the lower limit sliding block body is required to be adjusted, the second motor is started, the output shaft drives the driving bevel gear to rotate, the engaged driven bevel gear drives the second screw rod to rotate under the connection support of the bearing seat, the movable assembly connected onto the second screw rod can also move vertically, when the first motor and the second motor are powered off, the two limit sliding block bodies can be locked quickly, the limit sliding block body can be removed from the movable ring to be replaced after the bolts are removed.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a cross-sectional view of the structure of the present utility model;

FIG. 3 is an enlarged view of a portion of A-A of FIG. 2 in accordance with the present utility model;

Fig. 4 is a cross-sectional view of a structure of a moving assembly of the present utility model.

In the figure: the novel anti-dust device comprises a vertical rod 1, a connecting cross rod 2, a hollow cavity 3, a first motor 4, a first screw 5, a bearing seat 6, a second screw 7, a driven bevel gear 8, a motor seat 9, a second motor 10, a driving bevel gear 11, a moving assembly 12, a threaded sleeve 121, a connecting rod 122, a moving ring 123, a limiting slide block body 124, a bolt 125, a reinforcing rib 126 and a dustproof sleeve 13, wherein the groove 14 is used for sealing the sealing ring 15.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a quick-closing valve shifting device of a steam turbine comprises a vertical rod 1, wherein one end of the vertical rod 1 is integrally formed with a connecting cross rod 2 connected with a push disc in the vertical direction, a cavity 3 is formed in the vertical rod 1, a first motor 4 is fixedly arranged at the top end of the vertical rod 1, an output shaft of the first motor 4 penetrates through the cavity 3 and is fixedly connected with a first screw rod 5, a bearing seat 6 is fixedly connected to the inner wall of the cavity 3 and is positioned below the first screw rod 5, a second screw rod 7 is rotationally connected to the bearing seat 6, one end of the second screw rod 7 penetrates through the outer part of the bearing seat 6 and is fixedly connected with a driven bevel gear 8, a motor seat 9 is fixedly arranged at the outer side of the vertical rod 1 corresponding to the position of the driven bevel gear 8, a second motor 10 is fixedly arranged at the outer side of the motor seat 9, and an output shaft of the second motor 10 penetrates through the cavity 3 and is fixedly connected with a driving bevel gear 11 matched with the driven bevel gear 8; the first screw 5 and the second screw 7 are both connected with a moving assembly 12 along the axial threads.

Specifically, the moving assembly 12 includes a threaded sleeve 121, the threaded sleeve 121 is in threaded connection with the surface of the first screw 5 or the second screw 7, the outside of the threaded sleeve 121 is symmetrically provided with a connecting rod 122, one end of the connecting rod 122 penetrates through the cavity 3 and extends to the outside of the vertical rod 1, one ends of the two connecting rods 122 are fixedly connected through a moving ring 123, the outside of the moving ring 123 is provided with a limit sliding block body 124, and the limit sliding block body 124 is fixedly connected to the outside of the moving ring 123 through two bolts 125.

Specifically, the position of the vertical rod 1 corresponding to the connecting rod 122 is provided with a through groove 13 which is matched with the vertical rod, the directions of the two limit sliding block bodies 124 are opposite, and the through groove 13 is used for limiting and guiding the connecting rod 122.

Specifically, the top and the bottom of the corresponding connecting rod 122 on the inner wall of the movable ring 123 are fixedly connected with reinforcing ribs 126, one side of the reinforcing rib 126, which is close to the connecting rod 122, is fixedly connected with the connecting rod 122, and the connecting strength between the connecting rod 122 and the movable ring 123 is reinforced by the reinforcing ribs 126.

Specifically, the sealing ring 14 is fixedly connected to the inner wall of the cavity 3 at a position corresponding to the output shaft of the first motor 4, the outer sides of the first motor 4 and the second motor 10 are respectively provided with a dust cover 15, the sealing ring 14 can prevent external dust and sundries from penetrating through gaps between the output shaft of the first motor 4 and the inner wall of the cavity 3, and the dust covers 15 can prevent dust protection on the first motor 4 and the second motor 10 from the outside.

This quick valve toggle device of closing of steam turbine, structural design is reasonable, convenient to use adopts the electrically driven mode to realize the fast adjustment to spacing slider position, has improved availability factor to but two spacing slider positions of accurate control, and then satisfies the user demand comprehensively.

When the position of the upper limit sliding block body 124 is required to be adjusted, the first motor 4 is started, the output shaft drives the first screw 5 to rotate, the threaded sleeve 121 connected onto the first motor is guided downwards by the connecting rod 122 and the through groove 13 to drive the movable ring 123 to move vertically, and similarly, when the position of the lower limit sliding block body 124 is required to be adjusted, the second motor 10 is started, the output shaft drives the drive bevel gear 11 to rotate, the driven bevel gear 8 meshed with the drive bevel gear 11 drives the second screw 7 to rotate under the connection support of the bearing seat 6, the movable assembly 12 connected onto the drive bevel gear can also move vertically, when the first motor 4 and the second motor 10 are powered off, the two limit sliding block bodies 124 can be locked quickly, and after the bolts 125 are dismounted, the limit sliding block body 124 can be taken down from the movable ring 123 to be replaced.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a steam turbine quick-closing valve toggle device, includes montant (1), its characterized in that: the utility model discloses a motor support structure, including montant (1), bearing frame (6), motor cabinet (9), first screw rod (5) are fixed on the top of montant (1), bearing frame (6) are fixed on the inner wall of cavity (3) and are located the below fixedly connected with bearing frame (5), bearing frame (6) are connected with second screw rod (7) in the internal rotation, driven bevel gear (8) are fixed on the outside fixedly connected with of bearing frame (6) are run through to one end of second screw rod (7), motor cabinet (9) are fixed on the outside of montant (1) in the position of corresponding driven bevel gear (8), second motor (10) are fixed on the outside of motor cabinet (9), the output shaft of second motor (10) runs through to inside fixedly connected with of cavity (3) initiative bevel gear (11) that cooperates with driven bevel gear (8);

And the first screw (5) and the second screw (7) are connected with a moving assembly (12) along axial threads.

2. The steam turbine quick-shut-off valve shifting device according to claim 1, wherein: the movable assembly (12) comprises a threaded sleeve (121), the threaded sleeve (121) is in threaded connection with the surface of a first screw rod (5) or a second screw rod (7), connecting rods (122) are symmetrically arranged on the outer side of the threaded sleeve (121), one ends of the connecting rods (122) penetrate through the cavity (3) and extend to the outer side of the vertical rod (1), one ends of the two connecting rods (122) are fixedly connected through a movable ring (123), a limit sliding block body (124) is arranged on the outer side of the movable ring (123), and the limit sliding block body (124) is fixedly connected on the outer side of the movable ring (123) through two bolts (125).

3. The steam turbine quick-shut-off valve shifting device according to claim 2, wherein: the position of the vertical rod (1) corresponding to the connecting rod (122) is provided with a through groove (13) matched with the vertical rod, and the two limit sliding block bodies (124) are oppositely arranged.

4. A steam turbine quick shut-off valve toggle assembly as set forth in claim 3 wherein: reinforcing ribs (126) are fixedly connected to the top and the bottom of the corresponding connecting rod (122) on the inner wall of the movable ring (123), and one side, close to the connecting rod (122), of each reinforcing rib (126) is fixedly connected with the connecting rod (122).

5. The steam turbine quick-shut-off valve shifting device according to claim 4, wherein: the inner wall of the cavity (3) is fixedly connected with a sealing ring (14) corresponding to the position of the output shaft of the first motor (4), and the outer sides of the first motor (4) and the second motor (10) are respectively provided with a dust cover (15).