CN214683905U

CN214683905U - Pipeline expansion device for steam turbine maintenance

Info

Publication number: CN214683905U
Application number: CN202120846443.8U
Authority: CN
Inventors: 高磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-11-12
Anticipated expiration: 2031-04-23

Abstract

The utility model discloses a steam turbine overhauls uses pipeline expanding unit relates to the steam turbine field of overhauing, makes the problem that pipeline life reduces to present pipeline expanding unit, now proposes following scheme, and it includes the shell, the internally mounted of shell has the fixed plate, just the top fixed mounting of fixed plate has the motor, one side of motor is provided with the belt, just one side interval that the motor was kept away from to the belt is provided with the rolling disc, the lateral wall of rolling disc is provided with the sliding tray, just the inside evenly distributed of sliding tray has the cushion, one side of rolling disc is provided with the transfer line, just the transfer line runs through the inside that the rolling disc extends to the sliding tray, the bottom fixed mounting of transfer line has the sliding block, the circumference outer wall of shell is provided with the push pedal. This steam turbine overhauls and uses pipeline expansion device passes through the motor and drives the rolling disc rotation to combine together through cushion and sliding block and drive the push pedal and remove and expand the pipeline.

Description

Pipeline expansion device for steam turbine maintenance

Technical Field

The utility model relates to a steam turbine overhauls the field, especially relates to a steam turbine overhauls uses pipeline expansion device.

Background

The steam turbine is also called as a steam turbine engine, which is an external combustion rotary machine capable of converting steam heat energy into mechanical work, steam from a boiler enters the steam turbine and then sequentially passes through a series of nozzles and movable blades which are annularly configured, so that the heat energy of the steam is converted into mechanical energy for rotating a rotor of the steam turbine, the steam turbine is main equipment of a modern thermal power plant and is also used in the metallurgical industry, the chemical industry and ship power devices, the steam turbine needs to be regularly detected in the using process, particularly a pipeline connected with the steam turbine, however, the diameter of the pipeline is fixed, so that the detection of the steam turbine is troublesome, and meanwhile, a pipeline expanding device used at present has certain defects.

Aiming at the problem that the pressure of a pipeline expanding device used in the existing pipeline detection process is different from that of the pipeline, the pipeline is often damaged, so that the service life of the pipeline is shortened, the pipeline expanding device for overhauling the steam turbine is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of steam turbine overhauls uses pipeline expansion device has solved the pipeline expansion device that uses in the present pipeline testing process and is different to the pressure of pipeline, often can lead to the pipeline impaired to make the problem that pipeline life reduces.

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

the utility model provides a steam turbine overhauls uses pipeline expansion device, includes the shell, the internally mounted of shell has the fixed plate, just the top fixed mounting of fixed plate has the motor, one side of motor is provided with the belt, just one side interval that the motor was kept away from to the belt is provided with the rolling disc, the lateral wall of rolling disc is provided with the sliding tray, just the inside evenly distributed of sliding tray has the cushion, one side of rolling disc is provided with the transfer line, just the transfer line runs through the inside that the rolling disc extends to the sliding tray, the bottom fixed mounting of transfer line has the sliding block, just sliding block and cushion phase-match, the circumference outer wall of shell is provided with the push pedal.

Preferably, a transmission shaft is installed on one side of the motor and connected with the bottom of the belt, a rotating shaft is arranged at the top of the belt and fixedly connected with the rotating disc.

Preferably, the top fixed mounting of transfer line has the telescopic link, just the telescopic link runs through the lateral wall of shell and extends to its outside, the one end and the push pedal of telescopic link are fixed connection.

Preferably, the outer wall of the circumference of the telescopic rod is provided with a return spring, the bottom of the telescopic rod is provided with a limiting piece, the limiting piece is connected with the bottom of the return spring, and the top of the return spring is connected with the shell.

Preferably, the lateral wall of shell is provided with flexible groove, just flexible groove and telescopic link phase-match, the telescopic link is provided with four groups, and it is the rectangular array distribution about the shell.

Preferably, one side of the motor is provided with a battery, and the top of the push plate is provided with a protective layer.

The utility model has the advantages that:

1. the motor drives the transmission shaft and rotates to drive the axis of rotation through the belt and rotate, the axis of rotation drives the rolling disc and rotates, the rolling disc rotates the cushion that drives its outside slope installation and rotates, the cushion is through combining together with the sliding block, it rises to drive the transfer line through the sliding block, the transfer line drives the telescopic link and rises, thereby the push pedal that drives telescopic link one end installation rises, and expand the pipeline through the push pedal.

2. The spacing piece that the telescopic link bottom set up is convenient for prevent that the telescopic link from breaking away from the shell, and reset spring is convenient for resume the normal position with the telescopic link simultaneously, and the inoxidizing coating is convenient for play the guard action to the pipeline when expanding the pipeline.

In conclusion, the device not only can drive the rolling disc to rotate through the motor to combine together through cushion and sliding block and drive the push pedal and remove and expand the pipeline, and be convenient for more control pipeline degree of opening.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention.

Fig. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic view of the connection structure of the rotating disc and the sliding block of the present invention.

Reference numbers in the figures: 1. a housing; 2. a fixing plate; 3. a motor; 4. a drive shaft; 5. a belt; 6. a rotating shaft; 7. rotating the disc; 8. a sliding groove; 9. cushion blocks; 10. a transmission rod; 11. a slider; 12. a telescopic rod; 13. a limiting sheet; 14. a return spring; 15. a telescopic groove; 16. pushing the plate; 17. a protective layer; 18. a battery.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, this embodiment provides a pipeline expansion device for steam turbine overhaul, the internally mounted of shell 1 has fixed plate 2, just the top fixed mounting of fixed plate 2 has motor 3, one side of motor 3 is provided with belt 5, just one side interval that motor 3 was kept away from to belt 5 is provided with rolling disc 7, the lateral wall of rolling disc 7 is provided with sliding tray 8, just the inside evenly distributed of sliding tray 8 has cushion 9, one side of rolling disc 7 is provided with transfer line 10, just transfer line 10 runs through the inside that rolling disc 7 extended to sliding tray 8, the bottom fixed mounting of transfer line 10 has sliding block 11, just sliding block 11 and cushion 9 phase-match, the circumference outer wall of shell 1 is provided with push pedal 16.

In this embodiment, transmission shaft 4 is installed to one side of motor 3, just transmission shaft 4 is connected with the bottom of belt 5, the top of belt 5 is provided with axis of rotation 6, just axis of rotation 6 is fixed connection with rolling disc 7, and motor 3 drives transmission shaft 4 and rotates to drive axis of rotation 6 through belt 5 and rotate, drive rolling disc 7 with this and rotate.

Further, the top fixed mounting of transfer line 10 has telescopic link 12, just telescopic link 12 runs through the lateral wall of shell 1 and extends to its outside, the one end and the push pedal 16 of telescopic link 12 are fixed connection, and telescopic link 12 removes and is convenient for drive push pedal 16 and removes, the circumference outer wall of telescopic link 12 is provided with reset spring 14, spacing piece 13 is installed to the bottom of telescopic link 12, just spacing piece 13 is connected with reset spring 14's bottom, reset spring 14's top is connected with shell 1, and reset spring 14 is convenient for resume the normal position with telescopic link 12, and spacing piece 13 prevents the skew of telescopic link 12, the lateral wall of shell 1 is provided with flexible groove 15, just flexible groove 15 and telescopic link 12 phase-match, telescopic link 12 is provided with four groups, and it is the rectangular array distribution about shell 1.

Besides, a battery 18 is arranged on one side of the motor 3, a protective layer 17 is arranged on the top of the push plate 16, the battery 18 is convenient for providing electric support, and the protective layer 17 is convenient for playing a protective role.

When the utility model is used, the device is firstly moved to a proper position;

when the device is in a proper position, a motor 3 is started, the motor 3 drives a transmission shaft 4 arranged on one side of the transmission shaft to rotate, the transmission shaft 4 drives a rotating shaft 6 to rotate anticlockwise through a belt 5 arranged on one side of the transmission shaft 4, so that a rotating disc 7 is driven to rotate through the rotating shaft 6, the rotating disc 7 drives a cushion block 9 obliquely arranged on the outer side of the rotating disc to rotate, the cushion block 9 is in contact with a sliding block 11 in the rotating process and jacks up the sliding block 11 to enable the sliding block 11 to ascend, the sliding block 11 ascends to drive a transmission rod 10 to ascend, the transmission rod 10 drives a push plate 16 to move through a telescopic rod 12 arranged on the top of the transmission rod 10, the push plate 16 is in contact with a pipeline through a protective layer 17 and expands the pipeline, and at the moment, a return spring 14 is in a compressed state;

after the pipeline detection is finished, the motor 3 is started again and is enabled to rotate clockwise, the motor 3 drives the cushion block 9 to rotate through the transmission shaft 4 and the rotating disc 7, and at the moment, the telescopic rod 12 drives the push plate 16 to contract under the action of the return spring 14, so that the push plate and the pipeline are separated, and the pipeline expansion work is finished.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a steam turbine overhauls uses pipeline expansion device, includes shell (1), its characterized in that, the internally mounted of shell (1) has fixed plate (2), and the top fixed mounting of fixed plate (2) has motor (3), one side of motor (3) is provided with belt (5), and one side interval that motor (3) were kept away from to belt (5) is provided with rolling disc (7), the lateral wall of rolling disc (7) is provided with sliding tray (8), and the inside evenly distributed of sliding tray (8) has cushion (9), one side of rolling disc (7) is provided with transfer line (10), and transfer line (10) run through rolling disc (7) and extend to the inside of sliding tray (8), the bottom fixed mounting of transfer line (10) has sliding block (11), and sliding block (11) and cushion (9) phase-match, the circumference outer wall of shell (1) is provided with push pedal (16).

2. The steam turbine overhauling pipeline expanding device according to claim 1, wherein a transmission shaft (4) is installed on one side of the motor (3), the transmission shaft (4) is connected with the bottom of the belt (5), a rotating shaft (6) is arranged on the top of the belt (5), and the rotating shaft (6) is fixedly connected with the rotating disc (7).

3. The steam turbine overhauling pipeline expanding device according to the claim 1, wherein the top of the transmission rod (10) is fixedly provided with an expansion link (12), the expansion link (12) penetrates through the side wall of the casing (1) and extends to the outside of the casing, and one end of the expansion link (12) is fixedly connected with the push plate (16).

4. The steam turbine overhauling pipeline expanding device according to claim 3, wherein a return spring (14) is arranged on the outer circumferential wall of the telescopic rod (12), a limiting piece (13) is arranged at the bottom of the telescopic rod (12), the limiting piece (13) is connected with the bottom of the return spring (14), and the top of the return spring (14) is connected with the shell (1).

5. The steam turbine service pipe expanding device according to claim 1, characterized in that the side walls of the casing (1) are provided with telescopic slots (15), and the telescopic slots (15) are matched with telescopic rods (12), and the telescopic rods (12) are provided with four groups and are distributed in a rectangular array with respect to the casing (1).

6. The steam turbine service pipe expanding device according to claim 1, wherein a battery (18) is arranged on one side of the motor (3), and a protective layer (17) is arranged on the top of the push plate (16).