CN111474236A - Magnetic flaw detection device of crankshaft - Google Patents
Magnetic flaw detection device of crankshaft Download PDFInfo
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- CN111474236A CN111474236A CN202010398180.9A CN202010398180A CN111474236A CN 111474236 A CN111474236 A CN 111474236A CN 202010398180 A CN202010398180 A CN 202010398180A CN 111474236 A CN111474236 A CN 111474236A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/825—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by using magnetic attraction force
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention relates to a magnetic flaw detection device for a crankshaft, which comprises a shell and a detection device positioned in the shell, wherein the detection device comprises a detection cavity, the upper end wall of the detection cavity is fixedly provided with the detection shell, an iron powder collection cavity is arranged in the detection shell, the lower end wall of the iron powder collection cavity is fixedly connected with a nozzle extending downwards into the detection cavity, a nozzle valve is fixedly arranged in the nozzle, two clamping devices which are bilaterally symmetrical relative to the detection device are arranged in the shell, each clamping device comprises a circular rotating groove, the device can automatically clamp the crankshaft through the clamping devices, the crankshaft can vibrate under the action of external force during clamping, simultaneously, the falling condition of the iron powder on the crankshaft is observed through the matching of the detection device and a knocking device, the stress condition of the crankshaft is evaluated, and the device is simple, the operation is convenient.
Description
Technical Field
The invention relates to the technical field of grinding tools, in particular to a magnetic flaw detection device for a crankshaft.
Background
The fracture of the crankshaft usually starts from the minimum crack, the crack gradually expands during the operation process, and the crankshaft is suddenly fractured to a certain degree, a brown part is often found on the fractured surface when a pump is observed, the old crack is obviously the old crack, the bright and shiny tissue is the trace of the sudden fracture developed later, but the damage condition of the crankshaft cannot be accurately judged by people sometimes, and a series of accidents are caused.
Disclosure of Invention
Aiming at the technical defects, the invention provides a magnetic flaw detection device for a crankshaft, which can overcome the defects.
The invention relates to a magnetic flaw detection device for a crankshaft, which comprises a shell and a detection device positioned in the shell, wherein the detection device comprises a detection cavity, the upper end wall of the detection cavity is fixedly provided with the detection shell, the detection shell is internally provided with an iron powder collection cavity, the lower end wall of the iron powder collection cavity is fixedly connected with a nozzle extending downwards into the detection cavity, a nozzle valve is fixedly arranged in the nozzle, two clamping devices which are bilaterally symmetrical relative to the detection device are arranged in the shell, each clamping device comprises a circular rotating groove, the circular rotating groove is communicated with the detection cavity, the lower side of the circular rotating groove is provided with a power cavity positioned at the lower side of the detection cavity, the end wall of one side of the power cavity, which is far away from the detection cavity, is fixedly provided with a motor, and the lower side of the detection cavity is provided with two beating devices which are bilaterally symmetrical relative to, the rapping device comprises a cam cavity located on the lower side of a detection cavity, the cam cavity is located on the inner side of a power cavity, the cam cavity is communicated with the detection cavity through a through groove, the detection cavity is connected with a rapping rod extending up and down between the cam cavities in a sliding manner, the lower end face of the rapping rod is fixedly connected with a lifting sliding plate connected with the left end wall and the right end wall of the cam cavity in a sliding manner, and a first spring is fixedly connected between the lifting sliding plate and the upper end wall of the cam cavity.
Preferably, the motor is close to one side power connection in cam chamber has the power shaft, the last splined connection of power shaft has the integral key shaft, rotate on the integral key shaft and be connected with the slide, the integral key shaft is located and is close to one-way ratchet of one side fixedly connected with of motor, the slide is kept away from one side fixedly connected with electro-magnet of motor, electro-magnet fixed connection is in the front and back end wall in power chamber, the power shaft is kept away from the terminal cooperation in one side of motor is connected with one-way ratchet group, the opposite side cooperation of one-way ratchet group is connected with and extends to the cam chamber and with the first axis of rotation that the casing rotated the connection, fixedly connected with is located in the first axis of rotation the cam.
Preferably, the power chamber with through first belt groove between the circular rotation groove with be located the second belt groove intercommunication in the first belt groove outside, the power chamber is kept away from one side end wall rotation that detects the chamber is connected with the second axis of rotation, the inboard of second axis of rotation is equipped with and is located the power intracavity and with the third axis of rotation that the casing rotates the connection, set firmly first belt pulley on the electro-magnet and be located the inboard first gear of first belt pulley, set firmly the second gear in the third axis of rotation and be located the inboard second belt pulley of second gear.
Preferably, the inner wall in circular rotation groove rotates and is connected with the rotating disc, the axle center department fixed connection of rotating disc is to keeping away from detect the hollow rotating shaft that chamber one side extends, the rotation screw thread axle that extends about being equipped with in the hollow rotating shaft, it is located to rotate to be connected with on the rotation screw thread axle detect the linkage disc of intracavity, the inboard of linkage disc be equipped with rotation screw thread axle fixed connection's magnet, set firmly in the hollow rotating shaft and be located the third belt pulley of second belt pulley upside, it is located to rotate epaxial fixedly connected with of screw thread the fourth belt pulley of first belt pulley upside.
Preferably, be equipped with four evenly distributed and intercommunication on the rotation disc detect the tight groove of the T type clamp in chamber, the tight inslot sliding connection of T type clamp has the slider, the slider is close to a side end face fixedly connected with in detection chamber extends to detect the tight pole of clamp in the intracavity, the inner end wall fixedly connected with fixed block of pressing from both sides the pole, it is connected with first commentaries on classics round pin to rotate on the fixed block, it is connected with the connecting rod to rotate on the first commentaries on classics round pin, the other end of connecting rod passes through the second commentaries on classics round pin and articulates on the linkage disc, rotate the screw thread axle and keep away from detect one side in.
Preferably, the inboard of pressing from both sides tight pole is close to detect the terminal fixedly connected with second spring in one side of chamber, the opposite side fixedly connected with of second spring presss from both sides tight piece, the fourth belt pulley is kept away from one side that detects the chamber is equipped with the intercommunication circular T type groove that rotates the groove, sliding connection has T type slider in the T type groove, the opposite side terminal surface fixed connection of T type slider is in circular rotation groove is kept away from detect on the one side end wall in chamber, the fourth belt pulley with through running through between the first belt pulley the first belt in second belt groove is connected, the third belt pulley with through running through between the second belt pulley the second belt in first belt groove is connected.
The beneficial effects are that: this device can accomplish the self-holding to the bent axle through clamping device, and the bent axle can shake under the effect of external force when pressing from both sides tightly, simultaneously through detection device and the cooperation of rapping the device, observes the condition of droing of iron powder on the bent axle, accomplishes the aassessment to the bent axle atress condition, and the device is simple, convenient operation.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a magnetic flaw detection apparatus for a crankshaft according to the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
fig. 3 is a schematic structural view at B-B in fig. 2.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations and/or steps that are mutually exclusive.
The invention will now be described in detail with reference to fig. 1-3, for the sake of convenience, the orientations described hereinafter being defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention discloses a magnetic flaw detection device for a crankshaft, which comprises a shell 10 and a detection device 901 positioned in the shell 10, wherein the detection device 901 comprises a detection cavity 11, the upper end wall of the detection cavity 11 is fixedly provided with a detection shell 12, the detection shell 12 is internally provided with an iron powder collection cavity 14, the lower end wall of the iron powder collection cavity 14 is fixedly connected with a nozzle 42 which extends downwards into the detection cavity 11, the nozzle 42 is internally and fixedly provided with a nozzle valve 13, the shell 10 is internally provided with two clamping devices 902 which are bilaterally symmetrical relative to the detection device 901, each clamping device 902 comprises a circular rotating groove 15, the circular rotating groove 15 is communicated with the detection cavity 11, the lower side of the circular rotating groove 15 is provided with a power cavity 62 positioned at the lower side of the detection cavity 11, and the end wall of the power cavity 62 far away from the detection cavity 11 is fixedly provided with a motor 34, the downside that detects chamber 11 is equipped with two about detect 11 center department bilateral symmetry's of chamber device 903 of beating, beat device 903 including being located detect the cam chamber 28 of chamber 11 downside, just cam chamber 28 is located the inboard of power chamber 62, cam chamber 28 with detect and set up through leading to groove 56 intercommunication between the chamber 11, detect chamber 11 with sliding connection has the pole 25 of beating of extending from top to bottom between the cam chamber 28, beat the lower terminal surface fixedly connected with of pole 25 with end wall sliding connection's about cam chamber 28 lift slide 29, lift slide 29 with fixedly connected with first spring 26 between the upper end wall of cam chamber 28.
Beneficially, one side power connection that motor 34 is close to cam chamber 28 has power shaft 24, spline shaft 63 is connected to the last spline connection of power shaft 24, it is connected with slide plate 33 to rotate on the spline shaft 63, spline shaft 63 is located and is close to one side fixedly connected with one-way ratchet 23 of motor 34, slide plate 33 is kept away from one side fixedly connected with electro-magnet 32 of motor 34, electro-magnet 32 fixed connection is in the front and back end wall of power chamber 62, power shaft 24 is kept away from the terminal cooperation in one side of motor 34 is connected with one-way ratchet group 31, the opposite side cooperation of one-way ratchet group 31 is connected with extend to cam chamber 28 and with the first axis of rotation 30 of casing 10 rotation connection, fixedly connected with is located on the first axis of rotation 30 cam 27 of lift slide 29 downside.
Beneficially, the power cavity 62 and the circular rotation groove 15 are communicated with each other through a first belt groove 57 and a second belt groove 60 located outside the first belt groove 57, a second rotation shaft 35 is rotatably connected to an end wall of one side of the power cavity 62 far away from the detection cavity 11, a third rotation shaft 21 located in the power cavity 62 and rotatably connected to the housing 10 is arranged inside the second rotation shaft 35, the electromagnet 32 is fixedly provided with a first belt pulley 36 and a first gear 22 located inside the first belt pulley 36, and the third rotation shaft 21 is fixedly provided with a second gear 20 and a second belt pulley 19 located inside the second gear 20.
Beneficially, the inner wall of the circular rotating groove 15 is rotatably connected with a rotating disc 43, the axis of the rotating disc 43 is fixedly connected with a hollow rotating shaft 17 extending away from one side of the detection cavity 11, a rotating threaded shaft 39 extending left and right is arranged in the hollow rotating shaft 17, a linkage disc 51 positioned in the detection cavity 11 is rotatably connected to the rotating threaded shaft 39, a magnet 50 fixedly connected with the rotating threaded shaft 39 is arranged on the inner side of the linkage disc 51, a third belt pulley 16 positioned on the upper side of the second belt pulley 19 is fixedly arranged on the hollow rotating shaft 17, and a fourth belt pulley 65 positioned on the upper side of the first belt pulley 36 is fixedly connected to the rotating threaded shaft 39.
Beneficially, be equipped with four evenly distributed on the carousel 43 and communicate the T type that detects chamber 11 presss from both sides tight groove 44, sliding connection has slider 45 in the T type presss from both sides tight groove 44, slider 45 is close to a side end fixedly connected with that detects chamber 11 extends to detect the interior clamping bar 46 of chamber 11, the inner endwall fixedly connected with fixed block 54 of clamping bar 46, rotate on the fixed block 54 and be connected with first commentaries on classics round pin 53, rotate on the first commentaries on classics round pin 53 and be connected with connecting rod 52, the other end of connecting rod 52 passes through second commentaries on classics round pin 47 and articulates on linkage disc 51, rotate threaded shaft 39 keep away from detect chamber 11 one side with casing 10 threaded connection.
Beneficially, a second spring 48 is fixedly connected to an end of one side of the inner side of the clamping rod 46 close to the detection cavity 11, a clamping block 49 is fixedly connected to the other side of the second spring 48, a T-shaped groove 38 communicating with the circular rotation groove 15 is arranged on a side of the fourth belt pulley 65 far away from the detection cavity 11, a T-shaped slider 40 is slidably connected in the T-shaped groove 38, an end face of the other side of the T-shaped slider 40 is fixedly connected to an end wall of one side of the circular rotation groove 15 far away from the detection cavity 11, the fourth belt pulley 65 is connected with the first belt pulley 36 through a first belt 37 penetrating through the second belt groove 60, and the third belt pulley 16 is connected with the second belt pulley 19 through a second belt 18 penetrating through the first belt groove 57.
In the initial state, the one-way ratchet wheel 23 is connected with the second gear 20, the clamping rod 46 is positioned at the extreme position far away from the rotating threaded shaft 39, the linkage disc 51 is positioned at the extreme position far away from the center of the detection cavity 11, and the second spring 48 is in the normal state; when the detection device starts to work, the crankshaft 41 is placed between the clamping blocks 49, the power cavity 62 is started, the power shaft 24 starts to rotate, the rotating threaded shafts 39 are driven to rotate through the rotation of the spline shafts 63, the one-way ratchet wheel 23, the first gear 22, the second rotating shaft 35, the first belt pulley 36, the first belt 37 and the fourth belt pulley 65, the rotating threaded shafts 39 on the two sides move towards one side close to the detection cavity 11, the linkage disc 51 is driven to move towards the position close to the center of the detection cavity 11 until the magnet 50 is in contact with the crankshaft 41, the linkage disc 51 pulls the clamping rod 46 to move towards one side close to the rotating threaded shafts 39, the clamping blocks 49 clamp the crankshaft 41, the second spring 48 is compressed, and the crankshaft 41 is magnetized due to the contact of the magnet 50 and the crankshaft 41; starting the electromagnet 32 and the nozzle valve 13, wherein the electromagnet 32 drives the one-way ratchet wheel 23 on the spline shaft 63 to be connected with the second gear 20, the crankshaft 41 is driven to rotate by the rotation of the second gear 20, the third rotating shaft 21, the second belt pulley 19, the second belt 18, the third belt pulley 16, the hollow rotating shaft 17 and the rotating disc 43 while the one-way ratchet wheel 23 continues to rotate, and the nozzle valve 13 uniformly sprays iron powder in the iron powder collecting cavity 14 on the crankshaft 41 to enable the crankshaft 41 to adsorb the iron powder; after the above steps are completed, the motor 34 is started to rotate reversely, the first rotating shaft 30 and the cam 27 are driven to rotate through the one-way ratchet set 31, the rapping rod 25 moves up and down under the action of the cam 27 and the first spring 26 to rap the crankshaft 41, so that iron powder on the crankshaft 41 falls off, when a crack exists on the crankshaft 41, the iron powder exists at the crack, and the quality of the crankshaft 41 is judged through artificial observation.
The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.
Claims (6)
1. The utility model provides a magnetic force of bent axle detects a flaw detection device, includes the casing and is located detection device in the casing which characterized in that: the detection device comprises a detection cavity, the upper end wall of the detection cavity is fixedly provided with a detection shell, the detection shell is internally provided with an iron powder collection cavity, the lower end wall of the iron powder collection cavity is fixedly connected with a nozzle extending downwards into the detection cavity, a nozzle valve is fixedly arranged in the nozzle, the shell is internally provided with two clamping devices which are bilaterally symmetrical relative to the detection device, each clamping device comprises a circular rotating groove, the circular rotating groove and the detection cavity are communicated, the lower side of the circular rotating groove is provided with a power cavity positioned at the lower side of the detection cavity, the end wall of one side of the power cavity far away from the detection cavity is fixedly provided with a motor, the lower side of the detection cavity is provided with two beating devices which are bilaterally symmetrical relative to the center of the detection cavity, each beating device comprises a cam cavity positioned at the lower side of the detection cavity, and the cam cavity is positioned at the inner side, the cam cavity and the detection cavity are communicated through a through groove, a knocking rod extending up and down is connected between the detection cavity and the cam cavity in a sliding mode, the lower end face of the knocking rod is fixedly connected with a lifting sliding plate in sliding connection with the left end wall and the right end wall of the cam cavity, and a first spring is fixedly connected between the lifting sliding plate and the upper end wall of the cam cavity.
2. The magnetic flaw detection device for the crankshaft according to claim 1, characterized in that: the motor is close to one side power connection in cam chamber has the power shaft, the spline connection has the integral key shaft on the power shaft, rotate on the integral key shaft and be connected with the slide, the integral key shaft is located and is close to the one-way ratchet of one side fixedly connected with of motor, the slide is kept away from one side fixedly connected with electro-magnet of motor, electro-magnet fixed connection is in end wall around the power chamber, the power shaft is kept away from the terminal cooperation in one side of motor is connected with one-way ratchet group, the opposite side cooperation of one-way ratchet group is connected with and extends to the cam chamber and with the first axis of rotation of connecting is rotated to the casing, fixedly connected with is located on the first axis of rotation the cam.
3. The magnetic flaw detection device for the crankshaft according to claim 1, characterized in that: the power chamber with circular rotate between the groove through first belt groove and be located the second belt groove intercommunication in the first belt groove outside, the power chamber is kept away from one side end wall rotation that detects the chamber is connected with the second axis of rotation, the inboard of second axis of rotation is equipped with and is located the power intracavity and with the third axis of rotation that the casing rotated the connection, set firmly first belt pulley on the electro-magnet and be located the inboard first gear of first belt pulley, set firmly the second gear in the third axis of rotation and be located the inboard second belt pulley of second gear.
4. The magnetic flaw detection device for the crankshaft according to claim 3, characterized in that: the inner wall in circular rotation groove rotates and is connected with the rotating disc, the axle center department fixed connection that rotates the disc is to keeping away from detect the hollow rotating shaft that chamber one side extends, the rotation screw thread axle that extends about being equipped with in the hollow rotating shaft, it is located to rotate to be connected with on the rotation screw thread axle detect the linkage disc of intracavity, the inboard of linkage disc be equipped with rotate screw thread axle fixed connection's magnet, set firmly in the hollow rotating shaft and be located the third belt pulley of second belt pulley upside, it is located to rotate epaxial fixedly connected with of screw thread the fourth belt pulley of first belt pulley upside.
5. The magnetic flaw detection device for the crankshaft according to claim 4, characterized in that: it just communicates to be equipped with four evenly distributed on the rotation disc the tight groove of T type clamp that detects the chamber, sliding connection has the slider in the tight inslot of T type clamp, the slider is close to a side end face fixedly connected with that detects the chamber extends to detect the tight pole of intracavity, the inner endwall fixedly connected with fixed block of tight pole of clamp, it is connected with first commentaries on classics round pin to rotate on the fixed block, it is connected with the connecting rod to rotate on the first commentaries on classics round pin, the other end of connecting rod passes through the second commentaries on classics round pin and articulates on the linkage disc, rotate the screw thread axle and keep away from detect one side in.
6. The magnetic flaw detection device for the crankshaft according to claim 5, characterized in that: the inboard of pressing from both sides tight pole is close to detect the terminal fixedly connected with second spring in one side of chamber, the opposite side fixedly connected with of second spring presss from both sides tight piece, the fourth belt pulley is kept away from one side that detects the chamber is equipped with the intercommunication circular T type groove that rotates the groove, sliding connection has T type slider in the T type groove, the opposite side terminal surface fixed connection of T type slider is in circular rotation groove is kept away from detect on the one side end wall in chamber, the fourth belt pulley with through running through between the first belt pulley the first belt in second belt groove is connected, the third belt pulley with through running through between the second belt pulley the second belt in first belt groove is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398180.9A CN111474236A (en) | 2020-05-12 | 2020-05-12 | Magnetic flaw detection device of crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398180.9A CN111474236A (en) | 2020-05-12 | 2020-05-12 | Magnetic flaw detection device of crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111474236A true CN111474236A (en) | 2020-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010398180.9A Withdrawn CN111474236A (en) | 2020-05-12 | 2020-05-12 | Magnetic flaw detection device of crankshaft |
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| Country | Link |
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| CN (1) | CN111474236A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998208A (en) * | 2020-08-24 | 2020-11-27 | 福清市鸿扬电子科技有限公司 | Telescopic photographic support intensity detection device |
| CN112540157A (en) * | 2020-11-21 | 2021-03-23 | 安徽智行建设工程有限公司 | Detector for fire control detection capable of testing wind direction |
-
2020
- 2020-05-12 CN CN202010398180.9A patent/CN111474236A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998208A (en) * | 2020-08-24 | 2020-11-27 | 福清市鸿扬电子科技有限公司 | Telescopic photographic support intensity detection device |
| CN112540157A (en) * | 2020-11-21 | 2021-03-23 | 安徽智行建设工程有限公司 | Detector for fire control detection capable of testing wind direction |
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Application publication date: 20200731 |
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