CN216846856U

CN216846856U - Supporting device for modularized rotor experiment table

Info

Publication number: CN216846856U
Application number: CN202220106612.9U
Authority: CN
Inventors: 魏斌; 焦映厚; 张翔; 赵润超; 张赛
Original assignee: Harbin Institute of Technology
Current assignee: Harbin Institute of Technology
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-06-28
Anticipated expiration: 2032-01-17

Abstract

The utility model belongs to the technical field of gas turbine, concretely relates to a strutting arrangement for be used for modularization rotor laboratory bench, including rotor supporting seat, support thread sleeve, stand pipe, supporting screw, planetary gear set, main shaft, big bevel gear, little bevel gear, shell, base, shaft coupling, motor cabinet upper cover and motor base. The supporting threaded sleeve makes reciprocating linear motion in the guide pipe; the guide pipe supporting the threaded sleeve is positioned with the shell through a positioning pin; the support screw is connected to a planet carrier of the planetary gear set through threads; an outer gear ring in the planetary gear set is fixed inside the shell through a positioning groove; the large bevel gear and the sun gear of the planetary gear set share the same main shaft; the output shaft of the motor is connected with the small bevel gear shaft through a coupler; the motor is fixed on the base through the motor upper cover and the motor base by means of bolts. The task switching efficiency of the modularized rotor experiment table can be obviously improved through combined use; the supporting device is simple, portable and convenient to operate.

Description

Supporting device for modularized rotor experiment table

Technical Field

The utility model belongs to the technical field of gas turbine, concretely relates to a strutting arrangement for be used for modularization rotor laboratory bench.

Background

The rotary machine is a widely applied mechanical device in industry, and the development of corresponding experimental research has important significance for perfecting the rotor dynamics theory. In order to quickly verify the accuracy of different theoretical results, a modularized rotor experiment table is produced. The modularized rotor experiment table can flexibly, efficiently and low-cost realize the multi-task experiment requirement. But when the task needs to be switched, especially when the influence rule of the bearings with different structures is researched, the whole experiment table has to be disassembled and assembled. In order to reduce time consumption for disassembly and assembly and damage to the rotor, the supporting device special for the rotor is simple, portable, easy to operate and wide in application range, and has positive significance for perfecting the modularized rotor experiment table.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an invention aim at solve current modularization rotor laboratory bench and switching the technical problem of dismouting consuming time for a long time carrying on the multitask, provide a spare part easy dismounting, modular rotor strutting arrangement.

The utility model adopts the technical proposal that: a supporting device for a modularized rotor experiment table comprises a rotor supporting seat, a supporting threaded sleeve, a transmission case, a first bearing, a small bevel gear shaft, a coupler, a motor base upper cover, a motor base and a base;

the transmission case comprises a guide pipe, a support screw, a nut, an upper planet carrier, an upper thrust bearing, a second bearing, a planet gear, a gear ring, a sun gear, a lower planet carrier bearing, a lower planet carrier, a main shaft, a small bevel gear, a large bevel gear, a lower thrust bearing and a shell; the rotor supporting seat is arranged on a mounting seat at the top end of the supporting threaded sleeve through a mortise and tenon, the supporting threaded sleeve is positioned in the guide pipe, the supporting threaded sleeve and the supporting screw form a secondary thread pair, the guide pipe is positioned at the upper part of the shell, and the upper part of the guide pipe and the upper part of the shell are respectively provided with an inner positioning hole and an outer positioning hole; the large bevel gear is mounted at one end of the main shaft through a lower thrust bearing, the small bevel gear is meshed with the large bevel gear, and the small bevel gear is mounted on the small bevel gear shaft through a bearing; the lower planet carrier is arranged on the main shaft through a lower planet carrier bearing; the sun gear is arranged on a main shaft in the gear ring, is engaged with the three planet gears, and is arranged on a threaded shaft of the lower planet carrier through a second bearing; the upper planet carrier is fixed on the lower planet carrier through a nut, and the upper planet carrier is arranged at the other end of the main shaft through an upper thrust bearing; the supporting screw rod and the upper planet carrier form a primary thread pair; a positioning groove is formed in the outer part of the gear ring and is in interference fit with a boss on the inner wall of the shell;

the shell of the transmission case is arranged on the base through a bolt; the bevel pinion shaft is connected with an output shaft of the motor through a coupler, the motor is installed on the motor base, the upper cover of the motor base is installed on the motor base, and the motor base is installed on the base through bolts.

Furthermore, the rotor supporting seat is of a modular design, and the modular rotor supporting seat is connected with a support threaded sleeve with scales through a mortise and tenon structure, so that different supports can be replaced according to different diameters of the supported shaft.

Furthermore, the support threaded sleeve is provided with scales, and the scales on the surface are used for indicating the distance from the support to the base.

Furthermore, the number of the positioning grooves in the gear ring is 4.

Further, the supporting threaded sleeve and the guide pipe are positioned with the shell through a positioning pin.

The utility model has the advantages that: a support device for a modular rotor experiment table is provided. The supporting device can rapidly switch the supporting base according to the different diameters of the supported rotor, and can be used for any part of the whole modularized rotor experiment table; the task switching efficiency of the modularized rotor experiment table can be obviously improved through combined use; the supporting device is simple, portable and convenient to operate.

Drawings

FIG. 1 is a schematic perspective view of a first embodiment;

FIG. 2 is a schematic front view of the first embodiment;

FIG. 3 is a right side view of FIG. 2;

FIG. 4 is an exploded view of the motor base upper cover and the motor base according to the first embodiment;

FIG. 5 is an exploded view of the support threaded sleeve and guide tube of the first embodiment;

FIG. 6 is an exploded view of the transmission mechanism in the transmission case according to the first embodiment.

Detailed Description

Example one

Referring to the figures, the supporting device for the modularized rotor experiment table comprises a rotor supporting seat 1, a supporting threaded sleeve 2, a transmission case 4, a first bearing 5, a small bevel gear shaft 6, a coupler 7, a motor base upper cover 8, a motor 9, a motor base 10 and a base 11;

the transmission case 4 comprises a guide pipe 13, a support screw 14, a nut 15, an upper planet carrier 16, an upper thrust bearing 17, a second bearing 18, a planet gear 19, a gear ring 20, a sun gear 21, a lower planet carrier bearing 22, a lower planet carrier 23, a main shaft 24, a small bevel gear 25, a large bevel gear 26, a lower thrust bearing 27 and a shell; the rotor supporting seat 1 is arranged on a mounting seat at the top end of the supporting threaded sleeve 2 through mortise and tenon, the supporting threaded sleeve 2 is positioned in the guide pipe 13 and forms a secondary thread pair with the supporting screw 14, the guide pipe 13 is positioned at the upper part of the shell, and the upper part of the guide pipe 13 and the upper part of the shell are respectively provided with an inner positioning hole 12 and an outer positioning hole 3; the large bevel gear 26 is arranged at one end of the main shaft 24 through a lower thrust bearing 27, the small bevel gear 25 is meshed with the large bevel gear 26, and the small bevel gear 25 is arranged on the small bevel gear shaft 6 through a bearing; the lower planet carrier 23 is arranged on the main shaft 24 through a lower planet carrier bearing 22; the sun gear 21 is arranged on a main shaft 24 in the gear ring 20, the sun gear 21 is meshed with three planet gears 19, and the planet gears 19 are arranged on a threaded shaft of a lower planet carrier 23 through a second bearing 18; the upper planet carrier 16 is fixed on the lower planet carrier 23 through a nut 15, and the upper planet carrier 16 is arranged at the other end of the main shaft 24 through an upper thrust bearing 17; the supporting screw 14 and the upper planet carrier 16 form a primary thread pair; a positioning groove is formed in the outer part of the gear ring 20 and is in interference fit with a boss on the inner wall of the shell;

the shell of the transmission case 4 is arranged on the base 11 through bolts; the bevel pinion shaft 6 is connected with an output shaft of a motor 9 through a coupler 7, the motor 9 is installed on a motor base 10, an upper cover 8 of the motor base is installed on the motor base 10, and the motor base 10 is installed on a base 11 through bolts; the rotor supporting seat 1 is in a modular design; scales are arranged on the supporting threaded sleeve 2; the number of the positioning grooves on the gear ring 20 is 4; the supporting threaded sleeve 2 and the guide tube 13 are positioned with the housing by means of positioning pins.

The modularized rotor supporting seat is connected with the top of the supporting threaded sleeve with scales through a mortise and tenon joint structure; the support threaded sleeve with scales makes reciprocating linear motion in a guide pipe of the support threaded sleeve; the guide pipe supporting the threaded sleeve is positioned with the shell through a positioning pin; the support screw is connected to a planet carrier of the planetary gear set through threads; an outer gear ring in the planetary gear set is fixed inside the shell through a positioning groove; thrust bearings are arranged at both ends of the main shaft; the large bevel gear and the sun gear of the planetary gear set share the same main shaft; the thrust bearing matched with the large bevel gear is arranged in a base with a bearing groove; the small bevel gear is connected with a gear shaft matched with the small bevel gear through a key groove, and penetrates through the shell through a rolling bearing matched with the small bevel gear shaft; the output shaft of the motor is connected with the small bevel gear shaft through a coupler, and the motor is connected with the small bevel gear shaft through the coupler to realize power input; the motor is fixed on the base through the motor upper cover and the motor base by means of bolts; the upper cover of the motor is connected with the base of the motor through a mortise and tenon structure; the shell is fixed on the base through bolts. The small bevel gear is driven by the motor to drive the large bevel gear to rotate to form a first-stage speed reduction, and the small bevel gear is matched with the small bevel gear shaft to obtain energy input from the motor. The big bevel gear drives the sun gear in the planetary gear set through the main shaft, and sun gear drive planet wheel drives the planet carrier rotation, realizes the second grade speed reduction, and the planet carrier drives the supporting screw rotation for threaded job title sleeve is reciprocal linear motion in the stand pipe. The lifting of the supporting base is realized by controlling the rotation direction of the motor.

In this disclosure, aspects of the subject technology are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the technology are not necessarily intended to include all aspects of the technology. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the concepts and embodiments disclosed by this patent are not limited to any one implementation. Additionally, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

Although the present disclosure has been described with reference to the preferred embodiments, it is not intended to be limited to the embodiments disclosed herein. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present technical solution should be defined by the claims.

Claims

1. A support arrangement for be used for modularization rotor laboratory bench which characterized in that: the supporting device comprises a rotor supporting seat (1), a supporting threaded sleeve (2), a transmission case (4), a first bearing (5), a small bevel gear shaft (6), a coupler (7), a motor base upper cover (8), a motor (9), a motor base (10) and a base (11);

the transmission case (4) comprises a guide pipe (13), a support screw (14), a nut (15), an upper planet carrier (16), an upper thrust bearing (17), a second bearing (18), a planetary gear (19), a gear ring (20), a sun gear (21), a lower planet carrier bearing (22), a lower planet carrier (23), a main shaft (24), a small bevel gear (25), a large bevel gear (26), a lower thrust bearing (27) and a shell; the rotor supporting seat (1) is installed on an installation seat at the top end of the supporting threaded sleeve (2) through mortise and tenon, the supporting threaded sleeve (2) is located in the guide pipe (13) and forms a secondary thread pair with the supporting screw (14), the guide pipe (13) is located on the upper portion of the shell, and the upper portion of the guide pipe (13) and the upper portion of the shell are respectively provided with an inner positioning hole (12) and an outer positioning hole (3); the large bevel gear (26) is mounted at one end of the main shaft (24) through a lower thrust bearing (27), the small bevel gear (25) is meshed with the large bevel gear (26), and the small bevel gear (25) is mounted on the small bevel gear shaft (6) through a bearing; the descending planet carrier (23) is arranged on the main shaft (24) through a descending planet carrier bearing (22); the sun gear (21) is arranged on a main shaft (24) in the gear ring (20), the sun gear (21) is meshed with the three planet gears (19), and the planet gears (19) are arranged on a threaded shaft of the lower planet carrier (23) through a second bearing (18); the upper planet carrier (16) is fixed on the lower planet carrier (23) through a nut (15), and the upper planet carrier (16) is arranged at the other end of the main shaft (24) through an upper thrust bearing (17); the supporting screw rod (14) and the upper planet carrier (16) form a primary thread pair; a positioning groove is formed in the outer part of the gear ring (20), and the positioning groove is in interference fit with a boss on the inner wall of the shell;

the shell of the transmission case (4) is arranged on the base (11) through a bolt; the bevel pinion shaft (6) is connected with an output shaft of a motor (9) through a coupler (7), the motor (9) is installed on a motor base (10), an upper cover (8) of the motor base is installed on the motor base (10), and the motor base (10) is installed on a base (11) through bolts.

2. A support device for a modular rotor laboratory table according to claim 1, characterized in that: the rotor supporting seat (1) is in a modular design.

3. A support device for a modular rotor laboratory table according to claim 1, characterized in that: the support threaded sleeve (2) is provided with scales.

4. A support device for a modular rotor experiment table according to claim 1, wherein: the number of the positioning grooves in the gear ring (20) is 4.

5. A support device for a modular rotor experiment table according to claim 1, wherein: the supporting threaded sleeve (2) and the guide pipe (13) are positioned with the shell through a positioning pin.