CN217687866U - Shield constructs owner bearing damage analogue test device - Google Patents
Shield constructs owner bearing damage analogue test device Download PDFInfo
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- CN217687866U CN217687866U CN202221477683.6U CN202221477683U CN217687866U CN 217687866 U CN217687866 U CN 217687866U CN 202221477683 U CN202221477683 U CN 202221477683U CN 217687866 U CN217687866 U CN 217687866U
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Abstract
The utility model provides a shield machine main bearing damage simulation test device, which comprises a bearing bracket and a bottom plate, wherein the bearing bracket is used for mounting a bearing to be tested; the first driving mechanism comprises a motor base, a motor body, a gear, a rotating base, a rotating shaft and a rotating platform; the first vibration loading mechanism comprises a support, an electric push rod, a cam and a push plate. This application simulates the shield structure owner bearing condition under the complex environment through setting up first actuating mechanism and first vibration loading mechanism, and overall structure is simple and convenient effective, and the different sensors of arranging easily simultaneously acquire data, have fine practicality.
Description
Technical Field
The utility model relates to a shield constructs owner bearing damage test field, particularly, relates to a shield constructs owner bearing damage analogue test device.
Background
The main bearing of the shield machine belongs to a large-scale heavy-load bearing, and in the service process, the main bearing bears the axial thrust and the driving torque when the cutter head tunnels, and also bears the self weight of the cutter head, the rotating overturning moment and the impact load generated by an excavation surface, so that the fault is easy to occur, the size of the main bearing is very large, the large-scale structure also causes the effects of uneven heavy load distribution and multiple load mutation to be more complex, once the fault occurs and is found in time, the whole machine of the shield machine needs to be immediately shut down and replaced, and the time cost, the labor cost and the material cost of the maintenance and the replacement are sharply increased; if the fault is not found in time and maintained, serious safety accidents of casualties can be caused. Therefore, intensive research needs to be carried out on the failure generation mechanism of the main bearing of the shield machine.
However, the main bearing is generally enclosed in the anterior shield, and it is difficult to directly observe and detect the operating state and analyze the damage mechanism. Therefore, the experimental device for simulating the gear tooth damage of the main bearing of the shield tunneling machine is built, and the experimental device has important significance for analyzing the damage evolution process generated when the inner gear ring of the main bearing is vibrated and impacted during operation.
SUMMERY OF THE UTILITY MODEL
Based on this, in order to solve the not enough of existence among the prior art, the utility model aims at providing a shield constructs owner bearing damage analogue test device, can simulate the shield and construct the loaded form of main bearing in the work progress to make things convenient for follow-up research, its concrete technical scheme as follows:
a damage simulation test device for a main bearing of a shield machine comprises a bearing support used for mounting a bearing to be tested, a bottom plate, an oil tank, a first driving mechanism and a first vibration loading mechanism, wherein the oil tank, the first driving mechanism and the first vibration loading mechanism are all arranged on the bottom plate;
the bearing support comprises a horizontally arranged cross beam and a first vertical rod and a second vertical rod which are respectively connected to two ends of the cross beam, the first vertical rod and the second vertical rod are vertically arranged on the bottom plate, the oil tank is arranged below the cross beam and located between the first vertical rod and the second vertical rod, fixing frame footstands used for fixing the bearing to be tested are arranged on the first vertical rod, the second vertical rod and the cross beam respectively, the fixing frame footstands comprise a first fixing block and a second fixing block which are arranged side by side, and a gap used for embedding the bearing to be tested is reserved between the first fixing block and the second fixing block;
the first driving mechanism comprises a motor base, a motor body, a gear, a rotating base, a rotating shaft and a rotating platform, the rotating base is hollow and fixedly connected to the bottom plate, the rotating shaft is vertically arranged in the rotating base, the rotating platform is rotatably connected to the top end of the rotating shaft, the rotating platform covers the top end of the rotating base, the motor body is fixedly connected to the rotating platform through the motor base, the gear is fixedly connected to an output shaft of the motor body, and the gear is meshed with an inner gear ring of the bearing to be tested;
the first vibration loading mechanism comprises a support, an electric push rod, a cam and a push plate, the support is vertical to the bottom plate, the electric push rod is fixedly connected to the bottom plate, the push plate is connected to the telescopic end of the electric push rod, and the cam is sleeved on an output shaft of the motor body;
when the motor body starts, the outer edge of the cam is abutted to the push plate.
The damage simulation test device for the main bearing of the shield machine simulates the bearing condition of the main bearing of the shield machine under the complex environment by arranging the first driving mechanism and the first vibration loading mechanism, is simple, convenient and effective in overall structure, is easy to arrange and obtains data by different sensors, and has good practicability.
Furthermore, the upper surface of rotating the base is provided with the scale, be provided with on the rotation platform with the pointer of scale looks adaptation.
Furthermore, the upper surface of rotating the base is provided with a plurality of card holes, be provided with on the rotation platform with a plurality of draw-in grooves of card hole looks adaptation.
Further, the adjustment range of the scale is ± 15 °.
Furthermore, a rotating handle is further arranged on the rotating platform.
Further, a force sensor is arranged on the push plate.
Furthermore, the shield machine main bearing damage simulation test device further comprises a second driving mechanism and a second vibration loading mechanism which are arranged on the bottom plate.
Furthermore, the structure of the second driving mechanism is the same as that of the first driving mechanism, the second driving mechanism and the first driving mechanism form central symmetry, and the symmetry point of the second driving mechanism and the first driving mechanism is located on the central axis of the bearing support; the structure of the second vibration loading mechanism is the same as that of the first vibration loading mechanism, the structure of the second vibration loading mechanism is centrosymmetric with that of the first vibration loading mechanism, and the symmetric point of the structure of the second vibration loading mechanism and that of the first vibration loading mechanism is positioned on the central axis of the bearing support.
Furthermore, the oil tank is filled with lubricating oil.
Further, when the shield machine main bearing damage simulation test device works, part of the annular gear of the bearing to be tested, which is positioned in the oil tank, is immersed in the lubricating oil.
This application compares with current technique, has following beneficial effect and advantage:
(1) The stress condition of the main bearing of the shield machine under different construction conditions can be simulated, the main bearing to be tested can bear the effects of alternating axial force, radial force, overturning moment and the like, meanwhile, the stress simulation device has the advantages of being simple and convenient in structure, high in safety coefficient, simple to operate and the like, and plays an important role in researching the damage simulation failure of the inner gear ring of the main bearing of the shield machine.
(2) In the working process of a shield machine, the gear teeth of the main bearing inner gear ring and the driving gear are meshed to generate deviation, so that the gear teeth are damaged; this application is got up motor body and rotation platform and is constituted the rotation platform of taking the scale, through pointer and graduated disk quantitative determination output shaft and gear on the rotation platform and the bearing ring gear central line contained angle that awaits measuring, obtains quantitative fitting deviation promptly, and then can analyze the inhomogeneous wearing and tearing of teeth of a cogwheel and bump the damage that grinds and cause and the relation between the fitting deviation.
(3) In-process at shield structure machine work, often can touch the comparatively high rock of some hardness, this all can produce very big impact force to shield structure owner bearing, also can produce the impact force to shield structure owner bearing ring gear, for the impact force that simulation shield structure machine received at work, the output shaft drive cam rotation through the application motor body of this application, the elasticity adjustment collision distance through electric putter, and then the indirect adjustment gear teeth of a cogwheel and the effort of awaiting measuring between the bearing ring gear.
(4) The bearing to be tested of the device is also provided with an oil tank, the bearing to be tested has a lubricating effect, abrasion can be reduced to a large extent, and the main bearing and the gear are also in a lubricating state in the working process of the shield tunneling machine, so that the working state of the shield tunneling machine can be simulated to a large extent by the device.
(5) The testing device also adopts a modular design, and is easy to disassemble, assemble, maintain and maintain.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
Fig. 1 is a schematic structural diagram of a shield machine main bearing damage simulation test device according to one embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a second schematic structural diagram of a damage simulation test device for a main bearing of a shield tunneling machine according to one embodiment of the present invention;
fig. 4 is an enlarged schematic view of a portion B in fig. 3.
Description of reference numerals:
11. a bearing support; 12. a base plate; 13. an oil tank; 14. a first fixed block; 15. a second fixed block; 21. a motor base; 22. a motor body; 23. a gear; 24. rotating the base; 25. rotating the platform; 26. calibration; 27. a pointer; 28. clamping holes; 29. a card slot; 31. a support; 32. an electric push rod; 33. a cam; 34. pushing the plate; 40. a second drive mechanism; 50. a second vibration loading mechanism; 60. a bearing to be tested; 70. the handle is rotated.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the present invention, the terms "first" and "second" do not denote any particular quantity or order, but are merely used to distinguish names.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, an embodiment of the present invention provides a shield machine main bearing damage simulation test apparatus, which includes a bearing bracket 11 and a bottom plate 12 for mounting a bearing 60 to be tested, and further includes an oil tank 13, a first driving mechanism and a first vibration loading mechanism, all of which are disposed on the bottom plate 12;
the bearing support 11 comprises a horizontally arranged crossbeam, and a first vertical rod and a second vertical rod which are respectively connected to two ends of the crossbeam, the first vertical rod and the second vertical rod are vertically arranged on the bottom plate 12, the oil tank 13 is arranged below the crossbeam and positioned between the first vertical rod and the second vertical rod, the first vertical rod, the second vertical rod and the crossbeam are respectively provided with a fixing frame foot stool for fixing the bearing 60 to be tested, the fixing frame foot stool comprises a first fixing block 14 and a second fixing block 15 which are arranged side by side, and a gap for embedding the bearing 60 to be tested is reserved between the first fixing block 14 and the second fixing block 15; the first driving mechanism comprises a motor base 21, a motor body 22, a gear 23, a rotating base 24, a rotating shaft and a rotating platform 25, wherein the rotating base 24 is hollow and is fixedly connected to the bottom plate 12, the rotating shaft is vertically arranged in the rotating base 24, the rotating platform 25 is rotatably connected to the top end of the rotating shaft, the rotating platform 25 covers the top end of the rotating base 24, the motor body 22 is fixedly connected to the rotating platform 25 through the motor base 21, the gear 23 is fixedly connected to an output shaft of the motor body 22, and the gear 23 is in meshing connection with an inner gear ring of the bearing 60 to be tested; the first vibration loading mechanism comprises a support 31, an electric push rod 32, a cam 33 and a push plate 34, wherein the support 31 is vertical to the bottom plate 12, the electric push rod 32 is fixedly connected to the bottom plate 12, the push plate 34 is connected to the telescopic end of the electric push rod 32, and the cam 33 is sleeved on the output shaft of the motor body 22; when the motor body 22 is started, the outer edge of the cam 33 abuts against the push plate 34.
Foretell a shield constructs owner bearing damage analogue test device, through setting up a actuating mechanism and a vibration loading mechanism simulation shield constructs owner bearing under the complex environment and bears the condition, overall structure is simple and convenient effective, and the different sensor of arranging easily simultaneously acquires data, has fine practicality.
Specifically, the bearing 60 to be tested in the test device is used for simulating a main bearing of a shield machine in practice.
In one embodiment, the oil tank 13 is filled with lubricating oil. Specifically, when the shield machine main bearing damage simulation test device works, a part of the inner gear ring of the bearing 60 to be tested, which is located in the oil tank 13, is immersed in the lubricating oil. Grease is lubricated on the gear 23 and the inner gear ring through the environment of lubricating oil, a sufficient meshing state is provided, and the actual situation can be simulated more truly.
In one embodiment, the upper surface of the rotating base 24 is provided with a scale 26, and the rotating platform 25 is provided with a pointer 27 adapted to the scale 26. Specifically, the adjustment range of the scale 26 is ± 15 °.
In one embodiment, the rotatable platform 25 is further provided with a rotatable handle 70. The rotation range of the rotation platform 25 is conveniently adjusted by the rotation handle 70.
In one embodiment, a plurality of locking holes 28 are formed in the upper surface of the rotating base 24, and a plurality of locking slots 29 adapted to the plurality of locking holes 28 are formed in the rotating platform 25. When the rotating handle 70 is rotated to a required position, bolts are sequentially inserted into the clamping grooves 29 and the clamping holes 28 to fix the rotating platform 25, quantitative angle dislocation of different degrees is generated between the gear 23 driven by the output shaft of the motor and the gear teeth of the inner gear ring of the bearing 60 to be tested through the design, uneven pressure and deformation are generated on a gear tooth meshing line, and in addition, the collision dynamic load of the first vibration loading mechanism can fully simulate the complex external load action on the gear teeth of the main bearing of the shield tunneling machine in the tunneling process and the damage process under the load action.
In one embodiment, a force sensor is provided on the pusher plate 34. Specifically, the force sensor is a common technical means in the prior art, and can acquire a model by referring to a reference book according to actual needs and purchase the model on the market, and the specific structure and principle of the force sensor are not described herein again, and the force sensor is mainly used for acquiring the collision force generated between the cam 33 and the push plate 34 in the working process of the device.
In one embodiment, the shield machine main bearing damage simulation test device further includes a second driving mechanism 40 and a second vibration loading mechanism 50, both of which are disposed on the bottom plate 12.
In one embodiment, the structure of the second driving mechanism 40 is the same as that of the first driving mechanism, the second driving mechanism 40 and the first driving mechanism form central symmetry, and the symmetry point of the second driving mechanism 40 and the first driving mechanism is located on the central axis of the bearing support 11; the structure of the second vibration loading mechanism 50 is the same as that of the first vibration loading mechanism, the structure of the second vibration loading mechanism 50 is centrosymmetric to that of the first vibration loading mechanism, and the symmetric point of the structure of the second vibration loading mechanism 50 and the symmetric point of the first vibration loading mechanism is located on the central axis of the bearing support 11.
A more realistic simulation environment is obtained by providing the second driving mechanism 40 and the second vibration loading mechanism 50.
In one embodiment, the motor body 22 and the electric push rod 32 are common technical means in the prior art, and the specific structure and principle thereof are not described herein again, and both the motor body 22 and the electric push rod 32 can refer to a reference book according to actual needs to obtain models and purchase the models in the market.
This application compares with current technique, has following beneficial effect and advantage:
(1) The stress condition of the main bearing of the shield machine under different construction working conditions can be simulated, the main bearing to be tested can bear the effects of axial, radial and overturning moment and the like of alternation, meanwhile, the stress simulation device has the characteristics of simple structure, high safety coefficient, simplicity in operation and the like, and plays an important role in the research on the damage simulation failure of the inner gear ring of the main bearing of the shield machine.
(2) In the working process of the shield machine, the gear teeth of the main bearing inner gear ring and the driving gear 23 are meshed to generate deviation, so that the gear teeth are damaged; this application constitutes motor body 22 and rotating platform 25 with the rotating platform 25 combination and has scale 26, through pointer 27 and the graduated disk quantitative detection output shaft on the rotating platform 25 and gear 23 and the bearing 60 ring gear central line contained angle that awaits measuring, obtains quantitative fitting deviation promptly, and then can analyze the inhomogeneous wearing and tearing of teeth of a cogwheel and bump the damage that leads to the fact and the relation between the fitting deviation.
(3) In-process at the shield structure machine work, often can touch some rocks that hardness is comparatively high, this all can produce very big impact force to the shield structure main bearing, also can produce the impact force to shield structure main bearing ring gear, in order to simulate the impact force that the shield structure machine received at work, this application drives the rotation of cam 33 through the output shaft of application motor body 22, the elasticity adjustment collision distance through electric putter 32, and then the effort between the indirect adjustment gear 23 teeth of a cogwheel and the bearing 60 ring gear that awaits measuring.
(4) The bearing 60 to be tested of the device is also provided with the oil tank 13, the bearing 60 to be tested has a lubricating effect, abrasion can be reduced to a large extent, and the main bearing and the gear 23 are also in a lubricating state in the working process of the shield tunneling machine, so that the working state of the shield tunneling machine can be simulated to a large extent by the device.
(5) The testing device also adopts a modular design, and is easy to disassemble, assemble, maintain and maintain.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A shield machine main bearing damage simulation test device comprises a bearing support used for mounting a bearing to be tested, a bottom plate, an oil tank, a first driving mechanism and a first vibration loading mechanism, wherein the oil tank, the first driving mechanism and the first vibration loading mechanism are all arranged on the bottom plate;
the bearing support comprises a horizontally arranged cross beam and a first vertical rod and a second vertical rod which are respectively connected to two ends of the cross beam, the first vertical rod and the second vertical rod are vertically arranged on the bottom plate, the oil tank is arranged below the cross beam and located between the first vertical rod and the second vertical rod, fixing frame footstands used for fixing the bearing to be tested are arranged on the first vertical rod, the second vertical rod and the cross beam respectively, the fixing frame footstands comprise a first fixing block and a second fixing block which are arranged side by side, and a gap used for embedding the bearing to be tested is reserved between the first fixing block and the second fixing block;
the first driving mechanism comprises a motor base, a motor body, a gear, a rotating base, a rotating shaft and a rotating platform, the rotating base is hollow and is fixedly connected to the bottom plate, the rotating shaft is vertically arranged in the rotating base, the rotating platform is rotatably connected to the top end of the rotating shaft, the rotating platform covers the top end of the rotating base, the motor body is fixedly connected to the rotating platform through the motor base, the gear is fixedly connected to an output shaft of the motor body, and the gear is meshed with an inner gear ring of the bearing to be tested;
the first vibration loading mechanism comprises a support, an electric push rod, a cam and a push plate, the support is vertical to the bottom plate, the electric push rod is fixedly connected to the bottom plate, the push plate is connected to the telescopic end of the electric push rod, and the cam is sleeved on an output shaft of the motor body;
when the motor body starts, the outer edge of the cam is abutted to the push plate.
2. The shield tunneling machine main bearing damage simulation test device according to claim 1, wherein a scale is arranged on the upper surface of the rotating base, and a pointer adapted to the scale is arranged on the rotating platform.
3. The shield machine main bearing damage simulation test device according to claim 2, wherein a plurality of clamping holes are formed in an upper surface of the rotating base, and a plurality of clamping grooves matched with the plurality of clamping holes are formed in the rotating platform.
4. The shield machine main bearing damage simulation test device of claim 3, wherein the adjustment range of the scale is ± 15 °.
5. The shield tunneling machine main bearing damage simulation test device of claim 2, wherein a rotating handle is further arranged on the rotating platform.
6. The shield machine main bearing damage simulation test device of claim 1, wherein a force sensor is arranged on the push plate.
7. The damage simulation test device for the main bearing of the shield tunneling machine according to any one of claims 1 to 6, further comprising a second driving mechanism and a second vibration loading mechanism both disposed on the bottom plate.
8. The shield machine main bearing damage simulation test device according to claim 7, wherein the structure of the second driving mechanism is the same as that of the first driving mechanism, the second driving mechanism and the first driving mechanism form central symmetry, and a symmetry point of the second driving mechanism and the first driving mechanism is located on a central axis of the bearing support; the structure of the second vibration loading mechanism is the same as that of the first vibration loading mechanism, the structure of the second vibration loading mechanism is centrosymmetric to that of the first vibration loading mechanism, and the symmetric point of the structure of the second vibration loading mechanism and the symmetric point of the first vibration loading mechanism are positioned on the central axis of the bearing support.
9. The shield machine main bearing damage simulation test device of claim 1, wherein the oil tank is filled with lubricating oil.
10. The damage simulation test device for the main bearing of the shield tunneling machine according to claim 9, wherein when the damage simulation test device for the main bearing of the shield tunneling machine is in operation, a part of the ring gear of the bearing to be tested, which is located in the oil tank, is immersed in the lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221477683.6U CN217687866U (en) | 2022-06-14 | 2022-06-14 | Shield constructs owner bearing damage analogue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221477683.6U CN217687866U (en) | 2022-06-14 | 2022-06-14 | Shield constructs owner bearing damage analogue test device |
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| Publication Number | Publication Date |
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| CN217687866U true CN217687866U (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221477683.6U Active CN217687866U (en) | 2022-06-14 | 2022-06-14 | Shield constructs owner bearing damage analogue test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116519299A (en) * | 2023-05-31 | 2023-08-01 | 苏州铁近机电科技股份有限公司 | Bearing auxiliary detection device |
-
2022
- 2022-06-14 CN CN202221477683.6U patent/CN217687866U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116519299A (en) * | 2023-05-31 | 2023-08-01 | 苏州铁近机电科技股份有限公司 | Bearing auxiliary detection device |
| CN116519299B (en) * | 2023-05-31 | 2023-10-17 | 苏州铁近机电科技股份有限公司 | Bearing auxiliary detection device |
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