CN216410513U

CN216410513U - Main drive seal experimental device

Info

Publication number: CN216410513U
Application number: CN202123205002.9U
Authority: CN
Inventors: 张�杰; 叶蕾; 朱团辉; 周小磊; 贺开伟; 俞培德; 郭付军; 高可可; 詹晨菲; 徐智良; 巩启; 吴书航; 寇富钦
Original assignee: China Railway Engineering Equipment Group Co Ltd CREG
Current assignee: China Railway Engineering Equipment Group Co Ltd CREG
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-04-29
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a main drive sealing experimental device, which solves the problems that the main drive experimental device in the prior art is difficult to observe the internal grease distribution and the like. The utility model comprises a supporting frame, wherein a driving shaft is rotatably arranged on the supporting frame, a transparent main driving box structure is fixedly arranged on the driving shaft, and the driving shaft is connected with a driving device arranged on the supporting frame; the main driving box structure is matched with a transparent sealing shell arranged on the support frame, a sealing assembly is arranged between the main driving box structure and the transparent sealing shell, and an additional vibrating device is arranged between the transparent sealing shell and the support frame. The main driving box structure and the transparent sealing shell are transparent parts, so that the diffusion condition of the grease injected into the sealing box can be directly observed; through add between transparent sealed shell and support frame and establish additional vibrating device to cooperation eccentric adjusting part can realize the simulation research main drive tunnelling process's vibrations and operating mode such as eccentric, provide data support for the sealed experiment of main drive.

Description

Main drive seal experimental device

Technical Field

The utility model relates to the technical field of shield main drive experiments, in particular to a main drive sealing experimental device.

Background

In the tunneling process of the TBM, a large amount of dust and rock slag are generated due to rock breaking of the cutter head, and the dust is accumulated at the main driving seal, so that great threat is generated to the normal operation of the main driving seal. In the conventional TBM project, dust enters the main drive seal many times and causes accelerated wear of the seal, so it is important to study the mechanism of dust entering the main drive seal to improve the life of the main drive seal.

In the prior art, like a development machine main drive sealing test bed with publication number of CN 113155374A and an application method thereof, the grease extrusion condition in a labyrinth of the development machine main drive sealing system test bed is inconvenient to observe in a steel structure, in addition, the existing published test bed can not observe, the test bed can not well simulate the actual working condition or the installation error, and further the main drive working efficiency and the service life are prolonged.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the background art, the utility model provides a main drive sealing experimental device, which solves the problems that the main drive experimental device in the prior art is difficult to observe the internal grease distribution and poor in simulation authenticity.

The technical scheme of the utility model is realized as follows: a main drive sealing experimental device comprises a support frame, wherein a drive shaft is rotatably arranged on the support frame, a transparent main drive box structure is fixedly arranged on the drive shaft, and the drive shaft is connected with a drive device arranged on the support frame; the main driving box structure is matched with a transparent sealing shell arranged on the support frame, a sealing assembly is arranged between the main driving box structure and the transparent sealing shell, and at least one additional vibration device is arranged between the transparent sealing shell and the support frame. The driving device is a driving motor, and the driving shaft is rotatably connected to the supporting frame through a bearing.

Furthermore, the main drive sealing experiment device further comprises a base, the support frame is arranged on the base, and an eccentric adjusting assembly is arranged between the support frame and the base. Preferably, the eccentric adjusting assembly comprises a plurality of cushion blocks, and the cushion blocks are detachably arranged on the base.

Further, the lower part of the transparent sealed shell is connected with two additional vibration devices; the additional vibration device comprises a support arranged on the support frame or the base, and a vibration source is arranged on the support. Wherein, the vibration source is a pneumatic vibration source or an electric vibration source or a hydraulic vibration source.

Furthermore, the main driving box structure is sleeved in the transparent sealing shell, an annular cavity is formed between the main driving box structure and the transparent sealing shell, and the sealing assembly is located in the annular cavity.

Furthermore, the sealing assembly comprises a lip-shaped sealing element, a labyrinth sealing ring piece is arranged at the outer end part of the lip-shaped sealing element, and the labyrinth sealing ring piece is connected with the box body through a fastening bolt. And a labyrinth oil passage is arranged in the labyrinth seal ring piece and is communicated with the annular cavity. And the lip-shaped sealing element is provided with a grease injection port, and the grease injection port corresponds to an oil injection hole arranged on the transparent sealing shell.

The main driving box structure and the transparent sealing shell are made of transparent organic glass and the like, so that the diffusion condition of the injected and sealed grease can be directly observed conveniently; through add between transparent sealed shell and support frame and establish additional vibrating device to cooperation eccentric adjusting part can realize the vibrations and the eccentric operating mode such as of simulation research main drive tunnelling process, provides data support for the sealed various experimental study of main drive, and various problems such as the sealed damage of main drive, oil leak of better solution TBM tunnelling in-process main drive have higher practicality and spreading value.

Drawings

In order to illustrate the embodiments of the utility model more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.

FIG. 1 is a schematic front view of the present invention.

FIG. 2 is a side view of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1, embodiment 1 is a main drive sealing experimental apparatus, which includes a support frame 10, and a drive shaft 2 is rotatably disposed on the support frame 10, that is, the drive shaft is horizontally disposed on the support frame and rotatably connected to the drive shaft through a bearing 20. Fixed transparent main drive case structure 3 that is equipped with on the drive shaft 2, main drive case structure utilizes the main drive case structure of materials such as transparent organic glass, is convenient for observe the sealed grease diffusion condition of main drive, and main drive case structure 3 rotates with the drive shaft in step. One end of the driving shaft 2 is connected to a driving device 1 disposed on the supporting frame 10, and the driving device 1 is a driving motor in this embodiment. The main driving box structure 3 is matched with a transparent sealing shell 4 arranged on a support frame 10; under the action of the driving motor, the driving shaft drives the main driving box body structure to rotate in the transparent sealing shell, and the real working process of the main driving of the shield tunneling machine is simulated. In this embodiment, a sealing assembly is arranged between the main driving box structure 3 and the transparent sealing shell 4, and under the matching action of the transparent sealing shell and the transparent main driving box structure, the injection and diffusion conditions of grease such as main driving sealing can be visually observed, so as to provide reliable theoretical basis for better solving various problems such as main driving sealing damage and oil leakage in the TBM tunneling process. At least one additional vibration device 30 is arranged between the transparent sealed shell 4 and the support frame 10. The additional vibration device 30 can drive the transparent sealing shell to vibrate, so that the vibration in the main driving tunneling process is simulated, the actual working condition in the TBM main driving tunneling process is approached as much as possible, and the test precision is improved.

Preferably, the main driving sealing experimental device further comprises a base 15, and the support frame 10 is arranged on the base 15 and provides support for the support frame. An eccentric adjusting assembly is arranged between the supporting frame 10 and the base 15, and the eccentric adjusting assembly can realize eccentric adjustment of a main driving bearing, so that the eccentric adjusting assembly is close to the actual working condition of the TBM in the main driving tunneling process as much as possible.

As shown in fig. 2, in embodiment 2, a main driving sealing experimental apparatus, on the basis of embodiment 1, the eccentric adjustment assembly includes a plurality of cushion blocks 22, and the cushion blocks 22 are detachably disposed on the base 15. In this embodiment, the support frame 10 spans on the base 15 and the crossing direction is parallel to the driving shaft 2, and the connection between the support frame 10 and the base 15 is provided with a cushion block, and the main driving bearing eccentricity can be realized by changing the number of the cushion blocks or the shape of the cushion blocks and adjusting the different heights of the cushion blocks on the two sides of the experiment table. The eccentric adjusting assembly can also adopt a screw or a telescopic oil cylinder and the like.

Furthermore, the lower part of the transparent sealed shell 4 is connected with two additional vibration devices, so that the vibration uniformity is improved. Preferably, the additional vibration device 30 includes a bracket 12 disposed on the supporting frame 10 or the base 15, and a vibration source 11 is disposed on the bracket 12 and connected to a lower portion of the transparent sealed housing 4. The vibration source 11 is a pneumatic vibration source, an electric vibration source, or a hydraulic vibration source, and is typically a pneumatic or electric motor, or other type of vibration source. The main driving rotary vibration and the eccentricity after loading are used for simulating TBM tunneling of the whole experiment table, and the main driving rotary vibration and the eccentricity after loading are key components of the experiment table.

Further, the main driving box structure 3 is sleeved in the transparent sealing shell 4, an annular cavity is formed between the main driving box structure 3 and the transparent sealing shell 4, and the sealing assembly is located in the annular cavity. Wherein, seal assembly includes lip type sealing member 5, and the left and right ends of lip type sealing member 5 are equipped with labyrinth seal ring 8, and labyrinth seal ring 8 is connected with the box through fastening bolt 9. And a labyrinth oil duct 7 is arranged in the labyrinth seal ring member 8, and the labyrinth oil duct 7 is communicated with the annular cavity. In the experimental process, grease is uniformly extruded through a grease channel of a labyrinth cavity to form a seal, and the diffusion and ring formation conditions of the grease in the lip seal are observed through a main driving box structure and a transparent sealing shell on the outside; the sealed various experimental study of main drive is convenient for serve better, provides accurate data support for the experimental study.

Furthermore, a grease injection port 6 is arranged on the lip-shaped sealing element 5, and the grease injection port 6 corresponds to an oil injection hole arranged on the transparent sealing shell 4. And injecting grease through the grease injection port to observe the grease diffusion and ring formation in the lip seal.

The simulation experiment table device drives the driving shaft to drive the main driving to rotate through the motor 1, and the main driving box structure 3, the transparent sealing shell 4 and the like of the main driving structural part are made of materials such as transparent organic glass and the like, so that the injection and diffusion conditions of grease such as main driving sealing and the like can be observed conveniently; meanwhile, vibration and eccentricity conditions in the main driving tunneling process are simulated by using the vibration source part, so that the actual working conditions in the TBM main driving tunneling process are approached as much as possible, the grease injection and diffusion conditions are conveniently observed in experiments, various experimental researches on main driving sealing are better served, and various problems of main driving sealing damage, oil leakage and the like in the TBM tunneling process are better solved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a sealed experimental apparatus of main drive which characterized in that: the device comprises a support frame (10), wherein a driving shaft (2) is rotatably arranged on the support frame (10), a transparent main driving box structure (3) is fixedly arranged on the driving shaft (2), and the driving shaft (2) is connected with a driving device (1) arranged on the support frame (10); the main driving box structure (3) is matched with a transparent sealing shell (4) arranged on the support frame (10), a sealing assembly is arranged between the main driving box structure (3) and the transparent sealing shell (4), and at least one additional vibration device (30) is arranged between the transparent sealing shell (4) and the support frame (10).

2. The primary drive seal experiment device of claim 1, wherein: still include base (15), support frame (10) set up on base (15), and are equipped with eccentric adjusting part between support frame (10) and base (15).

3. The primary drive seal experiment apparatus of claim 2, wherein: the eccentric adjusting assembly comprises a plurality of cushion blocks (22), and the cushion blocks (22) are detachably arranged on the base (15).

4. The main drive seal experimental apparatus according to any one of claims 1 to 3, characterized in that: the lower part of the transparent sealed shell (4) is connected with two additional vibration devices; the additional vibration device (30) comprises a bracket (12) arranged on the support frame (10) or the base (15), and a vibration source (11) is arranged on the bracket (12).

5. The primary drive seal experiment apparatus of claim 4, wherein: the vibration source (11) is a pneumatic vibration source or an electric vibration source or a hydraulic vibration source.

6. The main drive seal experimental apparatus according to any one of claims 1 to 3 and 5, wherein: the main driving box structure (3) is sleeved in the transparent sealing shell (4), an annular cavity is formed between the main driving box structure (3) and the transparent sealing shell (4), and the sealing assembly is located in the annular cavity.

7. The primary drive seal experiment apparatus of claim 6, wherein: the sealing assembly comprises a lip-shaped sealing piece (5), a labyrinth sealing ring piece (8) is arranged at the outer end part of the lip-shaped sealing piece (5), and the labyrinth sealing ring piece (8) is connected with the box body through a fastening bolt (9).

8. The primary drive seal experiment apparatus of claim 7, wherein: and the lip-shaped sealing element (5) is provided with a grease injection port (6), and the grease injection port (6) corresponds to an oil injection hole arranged on the transparent sealing shell (4).

9. The primary drive seal experiment apparatus of claim 8, wherein: and a labyrinth oil duct (7) is arranged in the labyrinth seal ring member (8), and the labyrinth oil duct (7) is communicated with the annular cavity.

10. The main drive seal experimental apparatus according to any one of claims 1 to 3, 5 and 7 to 9, wherein: the driving device (1) is a driving motor, and the driving shaft (2) is rotatably connected to the supporting frame (10) through a bearing.