CN207937165U - A bearing defect detection device - Google Patents

Abstract

The utility model is related to a kind of bearing defect detection devices, it is characterised in that：Including support base, the top center of the support base is fixedly connected with telescopic rod, and the one end of telescopic rod far from bottom support base is fixedly connected with the articles holding table for being useful for placing bearing, detection device is arranged at intervals with above articles holding table；Detection device includes autorotation disk and detection paper web, autorotation disk is fixedly connected by more supporting rods with support base, and two circular ports are respectively provided on autorotation disk from center to edge, the bottom margin of each circular port is extended with detection cylinder to articles holding table direction respectively, the top that the cavity that can accommodate bearing and each detection cylinder are formed between each detection cylinder be recessed be formed with inner cavity compatible with paper web is detected separately down, the inner wall of inner cavity is equipped with through-hole, and the inner wall of through-hole is equipped with groove and is equipped with detection components in the through hole；The beneficial effects of the utility model：Simple in structure, low cost and the size of defect can accurately be detected.

Description

A bearing defect detection device

technical field

The utility model relates to the technical field of bearing detection, in particular to a bearing defect detection device.

Background technique

As we all know, bearings are an indispensable core component in machinery manufacturing and processing industries, and during the production and processing of bearing rings, due to forging, heat treatment, grinding and other technological factors or factors such as transportation and improper placement, the bearing rings will be damaged. Serious appearance defects such as dents and convex marks will directly cause the bearing to fail to be installed, and bring significant economic losses to the bearing user and the bearing manufacturer. Therefore, it is necessary to inspect the outer ring and the bearing ring before installation and use The surface of the inner ring is tested, and it can only be put into use after passing the test, so as to avoid economic losses.

Existing testing equipments are all precision instruments, which are expensive and not suitable for some small enterprises. Moreover, the current bearing testing equipment can only detect a defect in a certain part of the bearing and cannot express the size of the defect in detail.

Utility model content

In view of the deficiencies in the prior art, the purpose of this utility model is to provide a bearing defect detection device, aiming to solve the problems in the above-mentioned background technology.

The technical scheme of the utility model is realized as follows: a bearing defect detection device, characterized in that: it includes a support base, the top center of the support base is fixedly connected with a telescopic rod, and the end of the telescopic rod far away from the bottom support base is fixedly connected On the storage table where the bearing is placed, a detection device is arranged at intervals above the storage table; the detection device includes a self-rotating plate and a detection paper tube, the self-rotating plate is fixedly connected to the support base through a plurality of support rods, and on the rotating plate A first circular mouth and a second circular mouth are respectively arranged at intervals from the center to the edge, the diameter of the first circular mouth is greater than the diameter of the second circular mouth, and the bottom edges of the first circular mouth and the second circular mouth A first detection cylinder and a second detection cylinder respectively extend toward the direction of the storage table, and a cavity capable of accommodating a bearing is formed between the first detection cylinder and the second detection cylinder; the first detection cylinder and the second detection cylinder The tops of the tops are recessed downwards to form a first inner cavity and a second inner cavity that are compatible with the detection paper tube. The inner wall of the first inner cavity close to the second inner cavity and the inner wall of the second inner cavity close to the first inner cavity are both A through hole is provided, the inner wall of the through hole is provided with a groove and a detection component is arranged in the through hole; the detection component includes a detection pin located in the through hole, and one end of the detection pin close to the cavity is fixedly connected with a Probe, the end of the detection pin away from the probe is fixedly connected with the recording head; the middle part of the groove is provided with a reset block fixed with the detection pin, and the two sides of the reset block are respectively provided with return springs with different elasticity, and each return spring One end of the return spring is in contact with the reset block, and the other end of the return spring is in contact with the groove walls on both sides of the groove respectively.

Preferably, the elasticity of the return spring close to the recording head is greater than the elasticity of the return spring close to the probe.

Preferably, the recording head is a recording pen.

Preferably, a metal layer is attached to the surface of the detection paper cylinder away from each recording head, and the outer wall of the first detection cylinder and the outer wall of the second detection cylinder are both provided with magnet blocks for absorbing the detection paper cylinder.

Preferably, grids for measurement are provided on the surface of the detection paper cylinder close to each recording head.

Preferably, there are three support rods, and the three support rods form a regular triangular prism.

By adopting the above technical scheme: before testing, place the bearing on the storage table, lift the storage table through the telescopic rod and penetrate the bearing into the cavity, so that the probe is in contact with the surface of the bearing, and after it is fixed, the detection The paper tubes are put into the first inner cavity and the second inner cavity respectively, and the detection paper tubes are firmly adsorbed in the first inner cavity and the second inner cavity by the magnet block, and the first detection tube and the second detection tube are driven by the driving turntable. The detection cylinder rotates. During the rotation of the first detection cylinder, the following three detection results will appear when the probe passes over the outer wall of the bearing: (1) If the surface of the bearing has no defects, after the turntable completes one rotation, it will be Leave a circle of intact marks on the test paper tube; (2) When the surface of the bearing has "protruding" defects, when the turntable completes one rotation, it will leave a circle of marks on the test paper tube , and there will be many places with heavy marks on the ring; (3), when the surface of the bearing has a "sag" defect, when the turntable completes one rotation, it will leave a circle on the detection paper tube. Coherent imprint, that is, there will be many blanks in the imprint of the circle; after the inspection is completed, there is a grid for measurement on the inspection paper tube, and the size of the surface defect of the bearing can be measured according to the grid, so as to achieve accurate analysis; The setting of three support rods can provide better stability for the turntable during the rotation of the turntable, thereby ensuring the normal operation of the detection.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is the structural representation of the specific embodiment of the utility model;

Fig. 2 is an enlarged view of part A in Fig. 1 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1, the utility model discloses a bearing defect detection device. In a specific embodiment of the utility model, it includes a support base 1, and a telescopic rod 2 is fixedly connected to the center of the top of the support base 1. The telescopic rod 2 One end away from the bottom support base 1 is fixedly connected with a storage platform 3 for placing bearings, and a detection device 4 is arranged at intervals above the storage platform 3; The turntable 41 is fixedly connected to the support base 1 through a plurality of support rods 5, and a first circular opening 411 and a second circular opening 412 are respectively arranged at intervals from the center to the edge of the rotating disk 41, and the diameter of the first circular opening 411 is Greater than the diameter of the second circular opening 412, the bottom edges of the first circular opening 411 and the second circular opening 412 respectively extend toward the storage table 3 with a first detection cylinder 411a and a second detection cylinder 412a. A cavity 6 capable of accommodating bearings is formed between the detection cylinder 411a and the second detection cylinder 412a; The first inner cavity 411b and the second inner cavity 412b, the inner wall of the first inner cavity 411b close to the second inner cavity 412b and the inner wall of the second inner cavity 412b close to the first inner cavity 411b are all provided with a through hole 7, the through hole The inner wall of 7 is provided with a groove 71 and a detection assembly 8 is provided in the through hole 7; the detection assembly 8 includes a detection pin 81 located in the through hole, and the end of the detection pin 81 close to the cavity is fixedly connected with a probe 82, the end of the detection pin 81 away from the probe 82 is fixedly connected with the recording head 83; the middle part of the groove 71 is provided with a reset block 72 fixed with the detection pin 81, and the two sides of the reset block 72 are respectively provided with different elasticity. One end of each return spring 73 is in contact with the reset block 72, and the other end of the return spring 73 is in contact with the groove walls on both sides of the groove 71 respectively.

In a specific embodiment of the present invention, the elasticity of the return spring 73 close to the recording head 83 is greater than that of the return spring 73 close to the probe 82 .

In a specific embodiment of the present utility model, the recording head 83 is a recording pen.

In a specific embodiment of the present invention, a layer of metal layer 421 is attached to the surface of the detection paper cylinder 42 away from each recording head 83, and the outer wall of the first detection cylinder 411a and the outer wall of the second detection cylinder 412a are equipped with Magnet block 9 for adsorption detection paper tube 42.

In a specific embodiment of the present utility model, grids for measurement are provided on the surface of the detection paper tube 42 close to each recording head 83 .

In a specific embodiment of the utility model, there are three support rods 5, and the three support rods 5 form a regular triangular prism.

By adopting the above technical scheme: before testing, place the bearing on the storage table, lift the storage table through the telescopic rod and penetrate the bearing into the cavity, so that the probe is in contact with the surface of the bearing, and after it is fixed, the detection The paper tubes are put into the first inner cavity and the second inner cavity respectively, and the detection paper tubes are firmly adsorbed in the first inner cavity and the second inner cavity by the magnet block, and the first detection tube and the second detection tube are driven by the driving turntable. The detection cylinder rotates. During the rotation of the first detection cylinder, the following three detection results will appear when the probe passes over the outer wall of the bearing: (1) If the surface of the bearing has no defects, after the turntable completes one rotation, it will be Leave a circle of intact marks on the test paper tube; (2) When the surface of the bearing has "protruding" defects, when the turntable completes one rotation, it will leave a circle of marks on the test paper tube , and there will be many places with heavy marks on the ring; (3), when the surface of the bearing has a "sag" defect, when the turntable completes one rotation, it will leave a circle on the detection paper tube. Coherent imprint, that is, there will be many blanks in the imprint of the circle; after the inspection is completed, there is a grid for measurement on the inspection paper tube, and the size of the surface defect of the bearing can be measured according to the grid, so as to achieve accurate analysis; The setting of three support rods can provide better stability for the turntable during the rotation of the turntable, thereby ensuring the normal operation of the detection.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (6)

1. a kind of bearing defect detection device, it is characterised in that：Including support base, the top center of the support base is fixed It is connected with telescopic rod, the one end of telescopic rod far from bottom support base is fixedly connected with the articles holding table for being useful for placing bearing, described to set It is arranged at intervals with detection device above object platform；The detection device includes autorotation disk and detection paper web, and the autorotation disk passes through More supporting rods are fixedly connected with support base, and be respectively provided with from center to edge on autorotation disk the first circular port and Second circular port, the diameter of the first circular port are more than the diameter of the second circular port, the bottom of the first circular port and the second circular port Edge respectively to articles holding table direction be extended with the first detection cylinder and second detection cylinder, it is described first detection cylinder and second detection cylinder it Between be formed with the cavity that can accommodate bearing；The top of the first detection cylinder and the second detection cylinder is recessed separately down to be formed with First inner chamber compatible with detection paper web and second inner chamber, first inner chamber are close close to the inner wall and second inner chamber of second inner chamber The inner wall of first inner chamber is equipped with through-hole, and the inner wall of the through-hole is equipped with groove and is equipped with detection components in the through hole；The inspection It includes the test pin being located in through-hole to survey component, and the test pin is fixedly connected with probe close to one end of cavity, and test pin is remote One end from probe is fixedly connected with record head；The middle part of the groove is equipped with and the fixed resetting block of test pin, the reset The both sides of block are respectively equipped with the resetting spring that differs of elasticity, and one end of each resetting spring is contacted with resetting block, resetting spring it is another One end is contacted with the both sides cell wall of groove respectively.

2. a kind of bearing defect detection device according to claim 1, it is characterised in that：Close to the resetting spring of record head Elasticity be greater than close to probe resetting spring elasticity.

3. a kind of bearing defect detection device according to claim 1, it is characterised in that：The record head is recording pen.

4. a kind of bearing defect detection device according to claim 1, it is characterised in that：It is described to detect the separate each of paper web The surface of record head has one layer of metal layer, and the outer wall of the first detection cylinder and the outer wall of the second detection cylinder are equipped with for inhaling The magnet piece of attached detection paper web.

5. a kind of bearing defect detection device according to claim 1, it is characterised in that：The detection paper web is close to each note The surface for recording head is equipped with the grid for being used for measurement.

6. a kind of bearing defect detection device according to claim 1, it is characterised in that：The supporting rod is 3, and 3 Root supporting rod forms a positive Three-frustum-shaped.