CN202041380U

CN202041380U - Handheld auscultation rod for qualitatively judging running state of bearing

Info

Publication number: CN202041380U
Application number: CN201120080626XU
Authority: CN
Inventors: 陈永朝; 解艳红; 赵红彬; 詹凤容
Original assignee: Hebei Iron And Steel Co Ltd Handan Branch
Current assignee: Hebei Iron and Steel Co Ltd; Hebei Iron And Steel Co Ltd Handan Branch
Priority date: 2011-03-24
Filing date: 2011-03-24
Publication date: 2011-11-16
Anticipated expiration: 2021-03-24

Abstract

The utility model relates to a handheld auscultation rod for qualitatively judging the running state of a bearing, belonging to the technical field of fault diagnosis of mechanical equipment. The technical scheme is as follows: the handheld auscultation rod structurally comprises a spheroid and a probe; a counter bore is drilled on the spheroid; the tail part of the probe is inserted in the counter bore to be connected with the spheroid; and the head of the probe is tapered. The auscultation rod is convenient to hold when in auscultation due to the spheroid and can be directly and completely contacted with the ear of an inspection person so that the auscultation is clearer; and the auscultation rod is more reliably fixed on the auscultation point of the device through the tapered head of the probe so that the auscultation rod is prevented from being slid off in the auscultation process. The handheld auscultation rod is simple and has good effects, and can greatly improve the auscultation efficiency of qualitatively judging bearing fault.

Description

A kind of hand-held clave of listening that is used to qualitatively judge the bearing operation conditions

Technical field

The utility model relates to a kind of hand-held clave of listening that is used to qualitatively judge the bearing operation conditions, belongs to the mechanical fault diagnosis technical field.

Background technology

Can use a large amount of rotating machineries in industrial processes, and bearing being mechanical component most widely used in the rotating machinery, also is one of more flimsy part.Therefore, the whether good length that directly influences service life of equipment of bearing operation.Especially when equipment is in the operating mode of high temperature, high dust, heavy load, very big to the life-span influence of bearing, and the fault of bearing will cause equipment to produce unusual vibration and noise, even cause the major accident of device damage, influence ordinary production.In view of this, the utmost point is necessary to arrange the spot check personnel that the bearing of equipment is carried out daily spot check, so that can find the unusual condition of bearing early, thereby avoids the generation of equipment breakdown.

The initial failure of bearing to be improper owing to installing, misalign, foreign material invade, bear that over burdening is impacted and many-sided reasons such as manufacturing defect cause after bearing inclination, lack of lubrication or the seal failure, at the initial stage that above fault occurs, bearing can show and differ from normal vibration and noise.Generally speaking, do not need accurately that the bearing of judgment device is the fault that is caused by any reason actually, and only need qualitatively judge bearing fault has appearred, need change it just enough.Therefore, the spot check personnel pick rod shape things such as welding rod or iron bar at the scene and are attached to the sound of listening bearing on the shell usually not by dissembling inspection, and the bearing operation conditions is carried out auscultation, can judge tentatively whether bearing exists fault according to the sound of bearing operation.But rod shape things such as welding rod exist when using be inconvenient to hold, contacts not exclusively with spot check personnel's ear, unsafe factor such as easy slippage.

The utility model content

In order to guarantee that the spot check personnel can finish the spot check task safely, efficiently, the utility model provides a kind of hand-held clave of listening that is used to qualitatively judge the bearing operation conditions, it is simple, respond well to hand the audition bar structure, can improve the auscultation efficient that qualitatively judges bearing fault to a great extent.

The technical scheme that its technical matters that solves the utility model adopts is:

A kind of hand-held clave of listening that is used to qualitatively judge the bearing operation conditions comprises spheroidite and probe in the composition, be drilled with counterbore on the spheroidite, and the probe afterbody inserts in the counterbore and is connected with spheroidite, and end of probe is a sharp cone distal.

The above-mentioned hand-held clave of listening that is used to qualitatively judge the bearing operation conditions, described spheroidite is a spheroidal, described counterbore is provided with along the centre of sphere direction of spheroidite, is not penetrating counterbore.

The above-mentioned hand-held clave of listening that is used to qualitatively judge the bearing operation conditions, described probe is the rod shape of tail round end point, the tail end of probe matches with counterbore on the spheroidite.

The beneficial effects of the utility model are that spheroidite conveniently holds when making auscultation equipment, and can directly contact fully with spot check personnel's ear, makes audition more abundant; The sharp-pointed nose of probe is more convenient for listening a clave to be fixed on reliably on the auscultation point of equipment, avoids occurring in the auscultation process situation of slippage, installs simply, respond well, has improved the auscultation efficient of qualitative judgement bearing fault greatly.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model synoptic diagram.

1. sphericals, 2. probe among the figure.

Embodiment

Referring to Fig. 1, spheroidite 1 and probe 2 use stainless steel to make, and probe 2 heads are sharp cone distal; Probe 2 tail ends insert in spheroidite 1 counterbore, and by being welded to connect, to improve its intensity; After the two welding, weld bond need carry out polishing, so that smooth-shaped is attractive in appearance.Adopt this design, when the bearing fault that uses this hand-held tin clave to rotating machinery qualitatively judged, spheroidite 1 made surface of contact increase, under same acting force, can reduce to act on the pressure on hand and the ear, eliminate and unsafe factor such as to stab; The sharp cone distal of probe 2 heads helps realizing the secure fixation of this tin clave on auscultation equipment simultaneously.In this example, probe 2 heads are polished into sharp cone distal by the tapering of 1:10.

Claims

1. hand-held clave of listening that is used to qualitatively judge the bearing operation conditions, it is characterized in that: comprise spheroidite (1) and probe (2) in the composition, spheroidite is drilled with counterbore on (1), and probe (2) afterbody inserts in the counterbore and is connected with spheroidite (1), and probe (2) head is a sharp cone distal.

2. the hand-held clave of listening that is used to qualitatively judge the bearing operation conditions according to claim 1, it is characterized in that: described spheroidite (1) is spheroidal, described counterbore is provided with along the centre of sphere direction of spheroidite (1), is not penetrating counterbore.

3. the hand-held clave of listening that is used to qualitatively judge the bearing operation conditions according to claim 1 and 2, it is characterized in that: described probe (2) is the rod shape of tail round end point, the tail end of probe (2) matches with counterbore on the spheroidite (1).