CN214789719U

CN214789719U - Water pump turbine pipeline telescopic joint structure

Info

Publication number: CN214789719U
Application number: CN202120532028.5U
Authority: CN
Inventors: 李双勤; 王晓嘉; 付丹阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2021-11-19
Anticipated expiration: 2031-03-12

Abstract

The utility model discloses a water pump and water turbine pipeline expansion joint structure, relating to the technical field of water turbine pipelines; the flange plate type expansion joint comprises a fixed pipe, a flange plate seat, a first rotating base, a second rotating base, a first ball seat, a second ball seat, a first through hole, a second through hole and an expansion pipe; a first spherical rotating groove is formed in one side of the first rotating base, a second spherical rotating groove is formed in one side of the second rotating base, the first ball seat is located in the second spherical rotating groove, the second ball seat is located in the second spherical rotating groove, a water channel communicated with the flange plate seat is formed in the bottom of the first spherical rotating groove, and a water channel communicated with the fixed pipe is formed in the bottom of the second spherical rotating groove; the telescopic pipe is sleeved with a buffer spring, one end of the buffer spring is connected with the second rotating base, and the other end of the buffer spring is connected with the telescopic pipe. The utility model discloses it is convenient to change flexible pipe, connects firmly.

Description

Water pump turbine pipeline telescopic joint structure

Technical Field

The utility model belongs to the technical field of hydraulic turbine pipeline, in particular to pump turbine pipeline telescopic joint structure.

Background

The water turbine is a power machine which converts the energy of water flow into rotary mechanical energy, belongs to the turbine machinery in fluid machinery, and the technical development of the water turbine is suitable for the development scale of the hydropower industry in China. Under the strong pulling of the power demand in China, the water turbine and auxiliary machine manufacturing industry in China enters the rapid development period, the economic scale and the technical level of the water turbine and auxiliary machine manufacturing industry in China are both obviously improved, and the water turbine manufacturing technology in China reaches the world advanced level.

When the existing water turbine unit operates, the fixed pipe can vibrate along with the unit, the flange plate seat fixedly connected with the pit wall of the water turbine unit is fixedly connected with the fixed pipe, and water leakage is easy to occur between the flange plate seat and the fixed pipe under the long-time vibration of the fixed pipe.

Disclosure of Invention

The utility model aims at overcoming the above-mentioned shortcoming of prior art, provide a pump turbine pipeline telescopic joint structure, it is firm to connect.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a water pump and turbine pipeline telescopic joint structure comprises a fixed pipe fixedly connected with a unit, a flange plate seat fixedly connected with a machine pit wall, a first rotating base fixedly connected with the flange plate seat, a second rotating base fixedly connected with the fixed pipe, a first ball seat positioned on one side of the first rotating base close to the second rotating base, a second ball seat rotatably connected to one side of the second rotating base close to the first rotating base, a first through hole positioned on the first ball seat, a second through hole positioned on the second ball seat, and a telescopic pipe positioned between the first ball seat and the second ball seat; one end of the telescopic pipe is connected in the first through hole in a sliding mode, the other end of the telescopic pipe is connected in the second through hole in a sliding mode, a sealing ring is arranged between the telescopic pipe and the first through hole, the sealing ring is arranged between the telescopic pipe and the second through hole, a first spherical rotating groove is formed in one side of the first rotating base, a second spherical rotating groove is formed in one side of the second rotating base, the first ball seat is located in the first spherical rotating groove, the second ball seat is located in the second spherical rotating groove, a water channel communicated with the flange plate seat is formed in the bottom of the first spherical rotating groove, and a water channel communicated with the fixed pipe is formed in the bottom of the second spherical rotating groove; the telescopic pipe is sleeved with a buffer spring, one end of the buffer spring is connected with the second rotating base, and the other end of the buffer spring is connected with the telescopic pipe.

Preferably, the telescopic pipe comprises a first branch pipe matched with the first rotating base and a second branch pipe matched with the second rotating base; the one end rigid coupling that first minute pipe is close to the second and divides the pipe has first ring flange, the one end rigid coupling that the second divides the pipe to be close to first branch pipe has the second ring flange, first ring flange and second ring flange pass through bolted connection.

Preferably, the corresponding end of the buffer spring penetrates through the first flange plate and the second flange plate, two nuts are connected to the corresponding end of the buffer spring in a threaded mode, and the first flange plate and the second flange plate are located between the nuts.

As preferred, fixed pipe passes the top cap of unit, second rotation base one side is equipped with the fixed pipe male slot of confession, fixed pipe goes up the rigid coupling has annular arch, one side that the top cap is close to the second rotation base is equipped with the recess with the protruding adaptation of annular, annular arch is located the recess, annular arch is located the second and rotates between base and the top cap.

Preferably, the second rotating base and the unit are connected by bolts.

Preferably, the telescopic pipe is inserted into the first ball seat to a depth less than the radius of the first ball seat, and the distance from the first flange to the first ball seat is less than the radius of the first ball seat.

Preferably, the telescopic pipe is inserted into the second ball seat to a depth less than the radius of the second ball seat, and the distance from the second flange to the second ball seat is less than the radius of the second ball seat.

The utility model has the advantages that: when fixed pipe random set took place vibrations, first ball seat and second ball seat can take place to rotate, and simultaneously, axial motion can take place for flexible pipe, and buffer spring plays the effect of buffering, and fixed pipe and flange plate seat no longer are the rigid coupling, and it is more firm to connect, simultaneously, when the flexible pipe of needs change, takes off the nut, then loosens the bolt, then first minute pipe and second minute pipe take off respectively, have changed and have screwed up bolt and nut again after having good.

Drawings

Fig. 1 is a schematic diagram of an embodiment.

In the figure: the telescopic pipe comprises a fixed pipe 2, a flange plate seat 3, a first rotating base 4, a second rotating base 5, a first ball seat 6, a second ball seat 7, a first through hole 8, a second through hole 9, a telescopic pipe 10, a buffer spring 11, a first flange 12, a second flange 13, a nut 14, a top cover 15, a slot 16, an annular protrusion 17 and a groove 18.

Detailed Description

The invention will be further explained in detail with reference to the drawings and the following detailed description:

example (b):

referring to fig. 1, a water pump turbine pipeline telescopic joint structure comprises a fixed pipe 2 fixedly connected with a unit, a flange plate seat 3 fixedly connected with a pit wall, a first rotating base 4 fixedly connected with the flange plate seat 3, a second rotating base 5 fixedly connected with the fixed pipe 2, a first ball seat 6 positioned on one side of the first rotating base 4 close to the second rotating base 5, a second ball seat 7 rotatably connected to one side of the second rotating base 5 close to the first rotating base 4, a first through hole 8 positioned on the first ball seat 6, a second through hole 9 positioned on the second ball seat 7, and a telescopic pipe 10 positioned between the first ball seat 6 and the second ball seat 7;

one end of the extension tube 10 is connected in a first through hole 8 in a sliding manner, the other end of the extension tube 10 is connected in a second through hole 9 in a sliding manner, a sealing ring is arranged between the extension tube 10 and the first through hole 8, a sealing ring is arranged between the extension tube 10 and the second through hole 9, a first spherical rotating groove is arranged on one side of the first rotating base 4, a second spherical rotating groove is arranged on one side of the second rotating base 5, the first ball seat 6 is positioned in the first spherical rotating groove, the second ball seat 7 is positioned in the second spherical rotating groove, a water channel communicated with the flange plate seat 3 is arranged at the bottom of the first spherical rotating groove, and a water channel communicated with the fixed tube 2 is arranged at the bottom of the second spherical rotating groove;

the telescopic pipe 10 is sleeved with a buffer spring 11, one end of the buffer spring 11 is connected with the second rotating base 5, and the other end of the buffer spring 11 is connected with the telescopic pipe 10.

The telescopic pipe 10 comprises a first branch pipe matched with the first rotating base 4 and a second branch pipe matched with the second rotating base 5;

the one end rigid coupling that first branch pipe is close to the second and divides the pipe has first ring flange 12, the one end rigid coupling that the second divides the pipe to be close to first branch pipe has second ring flange 13, first ring flange 12 and second ring flange 13 pass through bolted connection.

The corresponding end of the buffer spring 11 penetrates through the first flange 12 and the second flange 13, two nuts 14 are connected to the corresponding end of the buffer spring 11 in a threaded mode, and the first flange 12 and the second flange 13 are located between the nuts 14.

Fixed pipe 2 passes the top cap 15 of unit, second rotation base 5 one side is equipped with supplies fixed pipe 2 male slot 16, the rigid coupling has annular protrusion 17 on the fixed pipe 2, top cap 15 is close to second rotation base 5 one side be equipped with the recess 18 of the protruding 17 adaptation of annular, annular protrusion 17 is located recess 18, annular protrusion 17 is located the second and rotates between base 5 and the top cap 15.

The second rotating base 5 and the unit are connected by bolts.

The telescopic tube 10 is inserted into the first ball seat 6 to a depth less than the radius of the first ball seat 6, and the distance from the first flange 12 to the first ball seat 6 is less than the radius of the first ball seat 6.

The telescopic tube 10 is inserted into the second ball seat 7 to a depth less than the radius of the second ball seat 7, and the distance from the second flange 13 to the second ball seat 7 is less than the radius of the second ball seat 7.

Principle of embodiment:

when the fixed pipe shakes at random, first ball seat 6 and second ball seat 7 can take place to rotate, simultaneously, axial motion can take place for flexible pipe 10, buffer spring 11 plays the effect of buffering, fixed pipe and flange seat no longer are the rigid connection, it is more firm to connect, simultaneously, when the flexible pipe 10 of needs change, take off the nut, then loosen the bolt, then first minute pipe and second minute pipe take off respectively, screw up bolt and nut again after having changed.

Claims

1. A water pump and turbine pipeline telescopic joint structure comprises a fixed pipe fixedly connected with a unit and a flange plate seat fixedly connected with a machine pit wall, and is characterized by further comprising a first rotating base fixedly connected with the flange plate seat, a second rotating base fixedly connected with the fixed pipe, a first ball seat positioned on one side of the first rotating base close to the second rotating base, a second ball seat rotatably connected to one side of the second rotating base close to the first rotating base, a first through hole positioned on the first ball seat, a second through hole positioned on the second ball seat, and a telescopic pipe positioned between the first ball seat and the second ball seat;

one end of the telescopic pipe is connected in the first through hole in a sliding mode, the other end of the telescopic pipe is connected in the second through hole in a sliding mode, a sealing ring is arranged between the telescopic pipe and the first through hole, the sealing ring is arranged between the telescopic pipe and the second through hole, a first spherical rotating groove is formed in one side of the first rotating base, a second spherical rotating groove is formed in one side of the second rotating base, the first ball seat is located in the first spherical rotating groove, the second ball seat is located in the second spherical rotating groove, a water channel communicated with the flange plate seat is formed in the bottom of the first spherical rotating groove, and a water channel communicated with the fixed pipe is formed in the bottom of the second spherical rotating groove;

the telescopic pipe is sleeved with a buffer spring, one end of the buffer spring is connected with the second rotating base, and the other end of the buffer spring is connected with the telescopic pipe.

2. The pump turbine pipeline expansion joint structure of claim 1, wherein the extension pipe comprises a first branch pipe matched with the first rotating base and a second branch pipe matched with the second rotating base;

the one end rigid coupling that first minute pipe is close to the second and divides the pipe has first ring flange, the one end rigid coupling that the second divides the pipe to be close to first branch pipe has the second ring flange, first ring flange and second ring flange pass through bolted connection.

3. The pump turbine pipeline expansion joint structure of claim 2, wherein the corresponding end of the buffer spring passes through the first flange and the second flange, the corresponding end of the buffer spring is in threaded connection with two nuts, and the first flange and the second flange are located between the nuts.

4. The telescopic pipe joint structure of a pump turbine pipeline as claimed in claim 1, wherein the fixed pipe penetrates through a top cover of the unit, one side of the second rotating base is provided with a slot for inserting the fixed pipe, the fixed pipe is fixedly connected with an annular protrusion, one side of the top cover close to the second rotating base is provided with a groove matched with the annular protrusion, the annular protrusion is located in the groove, and the annular protrusion is located between the second rotating base and the top cover.

5. The pump turbine telescopic pipe joint structure according to claim 1, wherein the second rotating base is connected with the unit through a bolt.

6. The pump turbine pipeline expansion joint structure of claim 2, wherein the depth of the extension pipe inserted into the first ball seat is smaller than the radius of the first ball seat, and the distance from the first flange plate to the first ball seat is smaller than the radius of the first ball seat.

7. The pump turbine pipeline expansion joint structure of claim 2, wherein the depth of the extension pipe inserted into the second ball seat is smaller than the radius of the second ball seat, and the distance from the second flange plate to the second ball seat is smaller than the radius of the second ball seat.