CN111532689B - Suspension bearing and state detection method and system thereof - Google Patents

Suspension bearing and state detection method and system thereof Download PDF

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Publication number
CN111532689B
CN111532689B CN202010379928.0A CN202010379928A CN111532689B CN 111532689 B CN111532689 B CN 111532689B CN 202010379928 A CN202010379928 A CN 202010379928A CN 111532689 B CN111532689 B CN 111532689B
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noise
suspension bearing
state
current
shaft
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CN111532689A (en
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李开领
贾真
周勇
曹冰洁
曹莎莎
方小花
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Wuhu Ader Conveyor Machinery Co ltd
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Wuhu Ader Conveyor Machinery Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details
    • B65G33/32—Adaptations of bearings or couplings for supporting and connecting screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
    • B65G43/02—Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
    • B65G2207/32—Noise prevention features

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The invention discloses a suspension bearing and a state detection method and a state detection system thereof, wherein the suspension bearing comprises a bracket, a flange, a suspension shaft and a fixing bolt; wherein the hanging shaft is fixed on the bracket; and the fixing bolt sequentially penetrates through the flange hanging shaft and the bracket so as to fix the relative positions of the flange, the hanging shaft and the bracket. The suspension bearing can fix the relative positions of the flange, the suspension shaft and the bracket, can be tighter and has less noise.

Description

Suspension bearing and state detection method and system thereof
Technical Field
The invention relates to the field of machine manufacturing, in particular to a suspension bearing and a state detection method and system thereof.
Background
The suspension bearing mainly exists in screw conveyer's pearl structure, the suspension bearing includes flange, hanging axle, bolt, the flange with through bolted connection between the hanging axle, three looks clearance fit, at equipment actual operation's in-process, incessantly rock between hanging axle, flange and the bolt, the noise of its production is great to it is cracked to cause easily under long-term vibrations.
Although a suspension bearing is disclosed in the application No. 201220535406.6, it is found in practical use that the improved suspension bearing still has the problems of large shaking and large noise, and the part of the suspension shaft connected with the flange is still easy to break under the influence of stress.
Disclosure of Invention
The invention aims to provide a suspension bearing which can fix the relative positions of a flange, a suspension shaft and a bracket, can be tighter and has less noise.
In order to achieve the above object, the present invention provides a suspension bearing, which includes a bracket, a flange, a suspension shaft, and a fixing bolt; wherein the hanging shaft is fixed on the bracket; and the fixing bolt sequentially penetrates through the flange hanging shaft and the bracket so as to fix the relative positions of the flange, the hanging shaft and the bracket.
Preferably, the hoist shaft includes: the connecting section is matched with the bracket, and the thread section is in adaptive connection with the flange; the diameter of the connecting section is smaller than that of the threaded section, and a reinforcing rib is arranged between the connecting section and the threaded section.
Preferably, a shaft sleeve is arranged outside the connecting section; wherein, the inside of axle sleeve is filled with and inhales the sound cotton.
Further, there is provided a suspension bearing state detection method, the suspension bearing being configured according to the above suspension bearing, the suspension bearing state detection method comprising: detecting current noise information showing the volume of the outer surface of the hanging shaft in real time through a volume sensor arranged on the outer surface of the hanging shaft; acquiring historical data for recording the maintenance type of the suspension bearing and the used time of the suspension bearing; judging whether the state of the hanger bearing is in a fault state or not according to the current noise information, historical data and used time; and if so, sending alarm information showing that the suspension bearing is in a fault state.
Preferably, the judging whether the state of the hanger bearing is in a fault state according to the current noise information, the historical data and the used time comprises: determining target noise information according to the used time and the historical data; and judging whether the state of the suspension bearing is in a fault state or not according to the target noise information and the current noise information.
Preferably, said determining target noise information based on said elapsed time and said historical data comprises: acquiring a current first noise influence parameter corresponding to at least one overhaul type shown by the historical data according to a preset corresponding relation between each overhaul type and each noise influence coefficient; acquiring a current second noise influence parameter corresponding to the used time, wherein the second noise influence parameter is configured to be in a direct proportion relation with the used time of the suspension bearing; and determining the target noise information based on the current first noise-affecting parameter and the current second noise-affecting parameter.
Preferably, the determining whether the state of the hanger bearing is in the fault state according to the target noise information and the current noise information includes: if the noise volume shown by the target noise information is smaller than the noise volume shown by the current noise information, judging that the state of the suspension bearing is in a fault state; and otherwise, judging that the state of the suspension bearing is in a normal working state.
Further, there is provided a suspension bearing condition detection system configured in accordance with the above suspension bearing, the suspension bearing condition detection system comprising: the volume sensor is arranged on the outer surface of the hanging shaft and used for detecting the current noise information showing the volume of the outer surface of the hanging shaft in real time; the data time acquisition unit is used for acquiring historical data for recording the maintenance type of the suspension bearing and the used time of the suspension bearing; the fault judging unit is used for judging whether the state of the suspension bearing is in a fault state or not according to the current noise information, the historical data and the used time; and the alarm sending unit is used for sending alarm information showing that the suspension bearing is in a fault state if the judgment result of the fault judging unit is positive.
Preferably, the failure determination unit includes: the target determining module is used for determining target noise information according to the used time and the historical data; and the fault judgment module is used for judging whether the state of the suspension bearing is in a fault state or not according to the target noise information and the current noise information.
Preferably, the goal determination module comprises: the first parameter acquisition submodule is used for acquiring a current first noise influence parameter corresponding to at least one overhaul type shown by the historical data according to the preset corresponding relation between each overhaul type and each noise influence coefficient; a second parameter obtaining submodule for obtaining a current second noise influence parameter corresponding to the used time, wherein the second noise influence parameter is configured to be in a direct proportion relation with the used time of the suspension bearing; and a target noise determination submodule for determining the target noise information based on the current first noise-influencing parameter and the current second noise-influencing parameter.
According to the technical scheme, the fixing bolts sequentially penetrate through the flange hanging shaft and the support to fix the relative positions of the flange, the hanging shaft and the support, and the fixing bolts are used for fixing the flange, the hanging shaft and the support, so that the problems that a hanging bearing in the prior art is high in noise and easy to break in the using process are solved, and the flange, the hanging shaft and the support form a whole.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view illustrating the construction of a suspension bearing according to the present invention;
FIG. 2 is a schematic view illustrating a structure of a bracket of a suspension bearing according to the present invention;
FIG. 3 is a flow chart illustrating a method of detecting a condition of a suspension bearing according to the present invention; and
fig. 4 is a block diagram illustrating a method of detecting a state of a suspension bearing according to the present invention.
Description of the reference numerals
1 bracket 2 flange
3 hanging shaft 4 fixing bolt
5 connecting segment 6 thread segment
7 axle sleeve 8 bottom plate
9 vertical rod and 10 connecting rod
11 reinforcing rib
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the directional words "upper, lower, left, right" and the like included in the terms merely represent the orientation of the terms in a conventional use state or are colloquially understood by those skilled in the art, and should not be construed as limiting the terms.
The suspension bearing is an important part in the screw conveyor, when the suspension bearing is damaged, a serious result is caused to the screw conveyor, the suspension bearing at the present stage is simple in structure, in the actual use process, the suspension bearing can vibrate along with equipment shaking, larger noise can be generated in vibration, spaced parts such as a support and a flange can touch under vibration to generate larger noise, the service life of the suspension bearing under touch is shortened, and the suspension bearing is not suitable for being used at the present stage. Based on this, the suspension bearing of the present invention is described in detail by the following several drawings.
Fig. 1 is a schematic structural view illustrating a suspension shaft 3 bearing according to the present invention, and as shown in fig. 1, the suspension shaft 3 bearing comprises a bracket 1, a flange 2, a suspension shaft 3 and a fixing bolt 4; wherein, the hanging shaft 3 is fixed on the bracket 1; and the fixing bolt 4 sequentially penetrates through the flange 2, the hanging shaft 3 and the bracket 1, so that the relative positions of the flange 2, the hanging shaft 3 and the bracket 1 are fixed.
The fixing bolts 4 are used for fixing the flange 2, the hanging shaft 3 and the support 1 in pairs, as shown in fig. 1, each fixing bolt 4 comprises a screw rod and a plurality of nuts, the nuts are arranged on two symmetrical planes with gaps, the screw rods directly penetrate through the flange 2, the hanging shaft 3 and the support 1 in sequence, the three parts can be fixed in pairs, mutual collision cannot occur, and therefore all parts of the hanging shaft 3 bearing cannot collide, and noise is relatively low. Experiments show that the service life of the suspension shaft 3 bearing provided by the invention is prolonged by more than 50% compared with the service life of the suspension shaft 3 bearing in the prior art. The mutual collision among all parts is ensured, and the noise is relatively less.
Preferably, the hoist shaft 3 may include: the connecting section 5 is matched with the bracket 1, and the thread section 6 is matched and connected with the flange 2; the diameter of the connecting section 5 is smaller than that of the threaded section 6, and a reinforcing rib 11 is arranged between the connecting section 5 and the threaded section 6. The connecting section 5 is of a tubular structure, the threaded end is of a tubular structure, and the threaded section 6 is matched with the connecting part of the flange 2 and connected with the flange 2. The reinforcing ribs 11 are used for reinforcing the connection strength of the connection part between the connection section 5 and the threaded end, preventing the connection section 5 and the threaded end from being broken, and further prolonging the service life of the hanging shaft 3.
Preferably, a shaft sleeve 7 is arranged outside the connecting section 5; wherein, the inside of the shaft sleeve 7 is filled with sound absorption cotton.
Wherein the bushing 7 is present outside the connecting section 5, primarily for protecting the connecting section 5 and further preventing noise by sound-absorbing wool.
Fig. 2 is a schematic structural view of a stent 1 of the present invention, and as shown in fig. 2, the stent 1 includes: a bottom plate 8, a vertical rod 9 and a connecting rod 10, as shown in fig. 2, the bracket 1 is provided with a mounting gap 12 for placing the hanging shaft 3.
Fig. 3 is a flowchart of a method for detecting a state of a suspension shaft 3 bearing according to the present invention, in which the suspension shaft 3 bearing is configured as the suspension shaft 3 bearing, the method for detecting a state of a suspension shaft 3 bearing includes:
s301, detecting current noise information showing the volume of the outer surface of the hanging shaft 3 in real time through a volume sensor arranged on the outer surface of the hanging shaft 3, wherein the volume sensor is used for detecting the current noise information of a bearing of the hanging shaft 3, and the current noise information can be the decibel condition of current noise;
s302, acquiring historical data for recording maintenance types of the suspension shaft 3 bearing and the used time of the suspension shaft 3 bearing; the historical data is used for reflecting the record of the maintenance of the suspension shaft 3, and can be obtained through the record of electronic equipment or the registration of manual records, and the types of the maintenance comprise: the abrasion is light, the abrasion is heavy, rust marks appear, cracks appear, screw threads slide, and the like. The used time is counted when the suspension bearing 3 starts to be used, and the used time reflects the real use time of the bearing.
S303, judging whether the state of the hanging shaft 3 bearing is in a fault state or not according to the current noise information, the historical data and the used time, wherein the current noise information represents the current noise decibel number, the used time and the historical data are used for reflecting the influence factor of the hanging shaft 3 bearing, and the current noise information, the historical data and the used time can reflect whether the hanging shaft 3 bearing is in the fault state or not; and
and S304, if the state of the suspension shaft 3 bearing is in a fault state, sending out alarm information showing that the suspension shaft 3 bearing is in the fault state. The fault state can be that the suspension shaft 3 bearing needs to be replaced urgently and cannot be used continuously, or the continuous use can cause greater potential safety hazard.
Further preferably, the determining whether the state of the hanger shaft 3 bearing is in the fault state according to the current noise information, the historical data and the used time in S303 may include:
determining target noise information according to the used time and the historical data, wherein the used time and the historical data are influence factors of the target noise information, the longer the used time is, the larger the target noise information is, and the different corresponding influence results of the historical data in the different overhaul types are also different, as shown in the following table 1; and judging whether the state of the suspension shaft 3 bearing is in a fault state or not according to the target noise information and the current noise information.
TABLE 1
Type of service Target noise information added value
Has light abrasion 20
Heavy wear and tear 30
Appearance of rust 40
Occurrence of cracks 70
Thread opening sliding screw 50
Further preferably, the determining target noise information according to the used time and the historical data comprises: obtaining a current first noise influence parameter corresponding to at least one overhaul type shown by the historical data according to a preset corresponding relation between each overhaul type and each noise influence coefficient, wherein for example, when the overhaul type is light in abrasion, the first noise influence parameter is 20; acquiring a current second noise influence parameter corresponding to the used time, wherein the second noise influence parameter is configured to be in a direct proportional relationship with the use time of the suspension shaft 3 bearing, that is, the second noise influence parameter is configured to be in a linear relationship with the use time of the suspension shaft 3 bearing, and when the use time is longer than the maximum use time, the state of the suspension shaft 3 bearing is directly judged to be in a fault state, the present invention only aims at the detection of the suspension shaft 3 bearing in the maximum use time, for example, the second noise influence parameter is a reference parameter + a use time coefficient, the coefficient may be 5, and the reference parameter is 100; and determining the target noise information based on the current first noise-affecting parameter and the current second noise-affecting parameter. When the current first noise influence parameter is 20 and the service life is 5 years, the second noise influence parameter is 25, and the decibel number of noise shown by the target noise information is 145.
Further preferably, the determining whether the state of the suspension shaft 3 bearing is in the fault state according to the target noise information and the current noise information includes: if the noise volume shown by the target noise information is smaller than the noise volume shown by the current noise information, judging that the state of the suspension shaft 3 bearing is in a fault state; and if the noise volume shown by the target noise information is larger than or equal to the noise volume shown by the current noise information, judging that the state of the suspension shaft 3 bearing is in a normal working state. For example, the target noise volume is 100 db, and if the current noise volume is 120 db, it is considered to be in a fault state.
Fig. 4 is a suspension shaft 3 bearing state detection system of the present invention, the suspension shaft 3 bearing being configured according to the suspension shaft 3 bearing described above, the suspension shaft 3 bearing state detection system comprising: a volume sensor 41 disposed on an outer surface of the hanging shaft 3 for detecting current noise information showing a volume level of the outer surface of the hanging shaft 3 in real time; a data time acquiring unit 42, configured to acquire historical data for recording an overhaul type of the suspension shaft 3 bearing and used time of the suspension shaft 3 bearing; a failure determination unit 43, configured to determine whether the state of the suspension shaft 3 bearing is in a failure state according to the current noise information, historical data, and used time; and an alarm sending unit 44, configured to send alarm information indicating that the suspension shaft 3 bearing is in a fault state if the determination result of the fault determination unit is negative.
Preferably, the failure determination unit 43 includes: a target determining module (not shown in the figure) for determining target noise information according to the used time and the historical data; and a failure determination module (not shown in the figure) for determining whether the state of the suspension shaft 3 bearing is in a failure state according to the target noise information and the current noise information.
Preferably, the goal determination module comprises: a first parameter obtaining sub-module (not shown in the figure) for obtaining a current first noise influence parameter corresponding to at least one overhaul type shown by the historical data according to a preset corresponding relationship between each overhaul type and each noise influence coefficient; a second parameter obtaining sub-module (not shown in the figure) for obtaining a current second noise influence parameter corresponding to the used time, wherein the second noise influence parameter is configured to be in a direct proportion relation with the used time of the suspension shaft 3 bearing; and a target noise determination sub-module (not shown) for determining the target noise information based on the current first noise-impact parameter and the current second noise-impact parameter.
The system for detecting the bearing state of the suspension shaft 3 has the same technical effects as the method for detecting the bearing state of the suspension shaft 3, and the details are not repeated herein.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (3)

1. A method for detecting the state of a suspension bearing is characterized in that the suspension bearing comprises a bracket, a flange, a suspension shaft and a fixing bolt; wherein the hanging shaft is fixed on the bracket; the fixing bolt sequentially penetrates through the flange, the hanging shaft and the bracket so as to fix the relative positions of the flange, the hanging shaft and the bracket; wherein, the hanging shaft includes: the connecting section is matched with the bracket, and the thread section is in adaptive connection with the flange; the diameter of the connecting section is smaller than that of the threaded section, and a reinforcing rib is arranged between the connecting section and the threaded section; a shaft sleeve is arranged outside the connecting section; wherein, the inside of the shaft sleeve is filled with sound-absorbing cotton;
further, the suspension bearing state detection method includes:
detecting current noise information showing the volume of the outer surface of the hanging shaft in real time through a volume sensor arranged on the outer surface of the hanging shaft;
acquiring historical data for recording the maintenance type of the suspension bearing and the used time of the suspension bearing;
acquiring a current first noise influence parameter corresponding to at least one overhaul type shown by the historical data according to a preset corresponding relation between each overhaul type and each noise influence coefficient;
acquiring a current second noise influence parameter corresponding to the used time, wherein the second noise influence parameter is configured to be in a direct proportion relation with the used time of the suspension bearing;
determining target noise information based on the current first noise-affecting parameter and the current second noise-affecting parameter;
judging whether the state of the suspension bearing is in a fault state or not according to the target noise information and the current noise information; and
and if so, sending alarm information showing that the suspension bearing is in a fault state.
2. The method for detecting the state of the suspension bearing according to claim 1, wherein the determining whether the state of the suspension bearing is in a failure state according to the target noise information and the current noise information comprises:
if the noise volume shown by the target noise information is smaller than the noise volume shown by the current noise information, judging that the state of the suspension bearing is in a fault state; and
otherwise, judging that the state of the suspension bearing is in a normal working state.
3. A suspension bearing state detection system is characterized in that the suspension bearing comprises a bracket, a flange, a suspension shaft and a fixing bolt; wherein the hanging shaft is fixed on the bracket; the fixing bolt sequentially penetrates through the flange, the hanging shaft and the bracket so as to fix the relative positions of the flange, the hanging shaft and the bracket; wherein, the hanging shaft includes: the connecting section is matched with the bracket, and the thread section is in adaptive connection with the flange; the diameter of the connecting section is smaller than that of the threaded section, and a reinforcing rib is arranged between the connecting section and the threaded section; a shaft sleeve is arranged outside the connecting section; wherein, the inside of the shaft sleeve is filled with sound-absorbing cotton;
further, the suspension bearing state detection system includes:
the volume sensor is arranged on the outer surface of the hanging shaft and used for detecting the current noise information showing the volume of the outer surface of the hanging shaft in real time;
the data time acquisition unit is used for acquiring historical data for recording the maintenance type of the suspension bearing and the used time of the suspension bearing;
a failure determination unit comprising:
a goal determination module comprising:
the first parameter acquisition submodule is used for acquiring a current first noise influence parameter corresponding to at least one overhaul type shown by the historical data according to the preset corresponding relation between each overhaul type and each noise influence coefficient;
a second parameter obtaining submodule for obtaining a current second noise influence parameter corresponding to the used time, wherein the second noise influence parameter is configured to be in a direct proportion relation with the used time of the suspension bearing; and
a target noise determination submodule for determining target noise information based on the current first noise influencing parameter and the current second noise influencing parameter; and
the fault judgment module is used for judging whether the state of the suspension bearing is in a fault state or not according to the target noise information and the current noise information; and
and the alarm sending unit is used for sending alarm information showing that the suspension bearing is in a fault state if the judgment result of the fault judging unit is positive.
CN202010379928.0A 2020-05-08 2020-05-08 Suspension bearing and state detection method and system thereof Active CN111532689B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202880360U (en) * 2012-10-18 2013-04-17 芜湖市爱德运输机械有限公司 Novel hanging bearing
CN105115119A (en) * 2015-09-18 2015-12-02 珠海格力电器股份有限公司 Fault detection method, device and equipment for air conditioning unit
CN107226323A (en) * 2016-03-24 2017-10-03 湖北天宜机械股份有限公司 Conveying worm hanging axis
CN109324599A (en) * 2018-09-27 2019-02-12 蔚来汽车有限公司 Determine method, apparatus, equipment and the medium of mechanical breakdown and mechanical breakdown compensation
US10515159B2 (en) * 2013-03-06 2019-12-24 Dassault Systemes Simulia Corp. Flow-induced noise source identification
CN110790105A (en) * 2019-11-20 2020-02-14 上海电气集团股份有限公司 Elevator door system diagnosis and decline time prediction method and diagnosis and prediction system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202880360U (en) * 2012-10-18 2013-04-17 芜湖市爱德运输机械有限公司 Novel hanging bearing
US10515159B2 (en) * 2013-03-06 2019-12-24 Dassault Systemes Simulia Corp. Flow-induced noise source identification
CN105115119A (en) * 2015-09-18 2015-12-02 珠海格力电器股份有限公司 Fault detection method, device and equipment for air conditioning unit
CN107226323A (en) * 2016-03-24 2017-10-03 湖北天宜机械股份有限公司 Conveying worm hanging axis
CN109324599A (en) * 2018-09-27 2019-02-12 蔚来汽车有限公司 Determine method, apparatus, equipment and the medium of mechanical breakdown and mechanical breakdown compensation
CN110790105A (en) * 2019-11-20 2020-02-14 上海电气集团股份有限公司 Elevator door system diagnosis and decline time prediction method and diagnosis and prediction system

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