CN212226168U

CN212226168U - Valve hand wheel commutator for turbine box

Info

Publication number: CN212226168U
Application number: CN202020987047.2U
Authority: CN
Inventors: 陈长青; 崔远明; 张小明
Original assignee: Tikos Technology Group Lishui General Valve Co Ltd
Current assignee: Tikos Technology Group Lishui General Valve Co Ltd
Priority date: 2020-06-03
Filing date: 2020-06-03
Publication date: 2020-12-25
Anticipated expiration: 2030-06-03

Abstract

The utility model provides a valve hand wheel commutator for containing turbine case, includes shell, switching-over bevel gear, reversing shaft, drive bevel gear, drive shaft, the shell is whole to be L shape, and the cover has bearing and axle sleeve on the drive shaft, rotates with the shell to be connected, the drive shaft stretches into the inside one side fixed mounting of shell has drive bevel gear, and the drive shaft opposite side stretches out the shell, and the reversing shaft is located inside the shell, and the switching-over bevel gear is fixed in reversing shaft one side, drive bevel gear is connected with the gear engagement of switching-over bevel gear, and the cover has the bearing on the reversing shaft, rotates with the shell to be connected, be. The beneficial effects are as follows: the position of the valve hand wheel can be adjusted according to environmental changes or customer requirements.

Description

Valve hand wheel commutator for turbine box

Technical Field

The utility model relates to a valve accessories technical field, concretely relates to a valve handle commutator for containing turbine case.

Background

The valve is widely applied to the industrial field, the hand wheel is usually used for operation when the valve is opened, the existing hand wheel is generally fixedly installed at the top end or the side end of the valve, the direction cannot be changed randomly, therefore, when different installation environments or different customer requirements are met, the valves with the hand wheels in different directions need to be manufactured according to orders, and large-scale production in advance cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be used for containing the valve handle commutator of turbine case, can be according to the position of environmental change or customer's requirement adjustment hand wheel.

In order to achieve the above purpose, the utility model provides a following technical scheme: a valve hand wheel commutator for a turbine box comprises a shell, a reversing bevel gear, a reversing shaft, a driving bevel gear and a driving shaft, wherein the shell is integrally L-shaped, the driving shaft is sleeved with a bearing and a shaft sleeve and is rotationally connected with the shell, one side of the driving shaft extending into the shell is fixedly provided with the driving bevel gear, the other side of the driving shaft extends out of the shell, the driving bevel gear is meshed with the reversing bevel gear, the reversing shaft is positioned in the shell and is welded on one side of the reversing shaft, the reversing shaft is sleeved with the bearing and is rotationally connected with the shell, and the reversing shaft is provided with a through hole so as to be in key connection with a worm rod in the turbine box of;

preferably, the shell comprises a shell, an end cover and a reversing cover, the end cover is located at the end of the shell insertion driving shaft and is connected with the shell through a bolt, the reversing cover is located at the other end of the shell and is connected with the shell through a bolt, and 4U-shaped recesses are formed in the periphery of the reversing cover and are used for being connected with a turbine box bolt of the valve.

Preferably, in order to ensure the sealing performance of the hand wheel steering gear, O-shaped sealing rings are arranged in a gap between the driving shaft and the end cover, a gap between the reversing shaft and the reversing cover and a gap between the reversing cover and the shell.

Preferably, a threaded hole is formed in one side, extending out of the shell, of the driving shaft, a nut is installed in the threaded hole, the holding piece is pressed on the driving shaft through the nut, the nut is firstly screwed out when the hand wheel is installed, and the nut is screwed down to press the hand wheel after the hand wheel is installed, so that the hand wheel is prevented from being separated.

Preferably, one side of the driving shaft extending out of the end cover is provided with a U-shaped recess so as to be connected with a hand wheel key.

The utility model discloses a technical scheme play beneficial effect be: the position of the valve hand wheel can be adjusted according to environmental changes or customer requirements.

Drawings

Fig. 1 is a schematic view of the valve structure with the handwheel commutator of the present invention.

Fig. 2 is a front view of the handwheel reversing device for a valve according to the present invention.

Fig. 3 is a top view of the handwheel diverter for a valve of the present invention.

Fig. 4 is a cross-sectional view of the handwheel diverter for a valve of the present invention.

Fig. 5 is a view of the hand wheel commutator segment cover of fig. 4 in direction a.

Fig. 6 is a B-direction view of the hand wheel commutator end cap of fig. 4.

Fig. 7 is a schematic structural view of a hand wheel when the hand wheel commutator of the present invention is installed on the side end of a valve.

Fig. 8 is a schematic structural view of a hand wheel when the hand wheel commutator of the present invention is installed on the top end of a valve.

In the figure, 1, a shell 2 and a driving shaft; 3. a drive bevel gear; 4. a reversing shaft; 5. a reversing bevel gear; 6. a reversing cover; 7. an end cap; 8. a bearing; 9. a shaft sleeve; 10. a seal ring; 11. a nut; 12. a sheet 13 and a turbine box; 14. a valve; 15. a hand wheel; 16. a housing.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

A valve hand wheel commutator for a turbine box comprises a shell 16, a reversing bevel gear 5, a reversing shaft 4, a driving bevel gear 3 and a driving shaft 2, wherein the driving shaft 2 is sleeved with a bearing 8 and a shaft sleeve 9 and is rotationally connected with the shell 16, one side of the driving shaft 2 extending into the shell 16 is fixedly provided with the driving bevel gear 3, the other side of the driving shaft 2 extends out of the shell 16, the driving bevel gear 3 is meshed with the reversing bevel gear 5, the reversing shaft 4 is positioned in the shell 16, the reversing bevel gear 5 is welded on one side of the reversing shaft 4, the reversing shaft 4 is sleeved with the bearing 8 and is rotationally connected with the shell 16, and the reversing shaft 4 is provided with a through hole so as to be in key connection with a worm rod in a turbine box 13 of a;

the shell 16 is wholly L-shaped, the shell 16 comprises a shell 1, an end cover 7 and a reversing cover 6, the end cover 7 is located at the end of the shell 1, the end cover 1 is inserted into the driving shaft 2, the end cover 7 is connected with the shell 1 through a bolt, the reversing cover 6 is located at the other end of the shell 1, the reversing cover 6 is connected with the shell 1 through a bolt, and the periphery of the reversing cover 7 is provided with 4U-shaped recesses for being connected with a turbine box 13 of a valve 14 through a bolt.

In order to ensure the sealing performance of the hand wheel steering gear, O-shaped sealing rings are arranged in a gap between the driving shaft 2 and the inner surface of the end cover 7, a gap between the reversing shaft 4 and the inner surface of the reversing cover 6 and a gap between the reversing cover 6 and the inner surface of the shell 16.

The threaded hole is formed in one side, extending out of the end cover 7, of the driving shaft 2, the nut 11 is installed in the threaded hole, the holding piece 12 is pressed on the driving shaft 11 through the nut 11, the nut 11 is firstly screwed out when the hand wheel 15 is installed, and the nut 11 is screwed tightly to press the hand wheel 15 after the hand wheel 15 is installed, so that the hand wheel 15 is prevented from being separated.

The working principle is as follows: under normal conditions, the hand wheel 15 is located at the side end of the valve 14, a driving shaft 2 of the hand wheel commutator is in key connection with the hand wheel 15, a reversing shaft 4 of the hand wheel commutator is in key connection with a worm rod in a worm wheel box 13 of the valve 14, a reversing cover 6 of the hand wheel commutator is in bolt connection with the worm wheel box 13, and when the hand wheel 15 is screwed, a driving bevel gear 3 on the driving shaft 2 drives a reversing bevel gear 5 on the reversing shaft 4 to rotate, so that the worm rod of the worm wheel box 13 is driven to rotate, and the valve 14 is opened and closed. When the direction of the hand wheel 15 needs to be adjusted to be changed from the side end to the top end, the nut for connecting the reversing cover 6 of the hand wheel reverser with the turbine box 13 is unscrewed, the shell 16 of the hand wheel reverser rotates upwards by 90 degrees, the reversing shaft 4 is kept still, then the nut is screwed, and the hand wheel 15 is changed from the side end to the top end.

Although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention.

Claims

1. A valve hand wheel commutator for a valve containing a turbine box is characterized by comprising a shell (16), a reversing bevel gear (5), a reversing shaft (4), a driving bevel gear (3) and a driving shaft (2), the shell (16) is L-shaped as a whole, a bearing (8) and a shaft (9) are sleeved on the driving shaft (2), is rotatably connected with the shell (16), one side of the driving shaft (2) extending into the shell (16) is fixedly provided with a driving bevel gear (3), the other side of the driving shaft (2) extends out of the shell (16), the reversing shaft (4) is positioned in the shell (16), the reversing bevel gear (5) is fixed on one side of the reversing shaft (4), the drive bevel gear (3) is meshed with the reversing bevel gear (5), a bearing is sleeved on the reversing shaft (4), is rotatably connected with the shell (16), and a through hole is arranged on the reversing shaft (4).

2. The valve handwheel commutator for the turbine-box-containing valve according to claim 1, wherein the outer shell (16) comprises an end cover (7), a shell (1) and a reversing cover (6), the end cover (7) is in bolt connection with the shell (1), the reversing cover (6) is in bolt connection with the shell (1), and 4U-shaped recesses are formed in the periphery of the reversing cover (6).

3. The valve handwheel commutator for the turbine-box-containing valve according to claim 2, wherein the O-shaped sealing rings (10) are arranged in the gap between the driving shaft (2) and the inner surface of the end cover (7), the gap between the reversing shaft (4) and the inner surface of the reversing cover (6) and the gap between the reversing cover (6) and the inner surface of the shell (1).

4. The valve handwheel commutator for the turbine-box-containing valve according to claim 2, characterized in that a threaded hole is formed in one side of the driving shaft (2) extending out of the end cover, a nut (11) is arranged in the threaded hole, and the nut (11) presses the holding piece (12) on the driving shaft (2).

5. The valve handwheel commutator for the case with the turbine wheel as claimed in claim 4, characterized in that the side of the drive shaft (2) extending out of the end cap (7) is provided with a U-shaped recess.