CN108572218B - Frame side beam magnetic powder inspection machine - Google Patents
Frame side beam magnetic powder inspection machine Download PDFInfo
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- CN108572218B CN108572218B CN201810783026.6A CN201810783026A CN108572218B CN 108572218 B CN108572218 B CN 108572218B CN 201810783026 A CN201810783026 A CN 201810783026A CN 108572218 B CN108572218 B CN 108572218B
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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
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
- G01N27/84—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields by applying magnetic powder or magnetic ink
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Abstract
The invention discloses a frame side beam magnetic particle inspection machine, which comprises a frame, a supporting mechanism, a clamping rotating device and a longitudinal moving coil device; the left electrode and the right electrode are respectively arranged on a left clamping rotating device and a right clamping rotating device, and the left clamping rotating device and the right clamping rotating device are connected with a driving device; the supporting mechanism is arranged in the frame; the longitudinal moving coil device comprises a left linear moving coil device, a left swinging coil device, a right linear moving coil device, a right swinging coil device and a guide rod, wherein the left linear moving coil device and the right linear moving coil device are respectively positioned at the left part and the right part of the guide rod, the coils of the left swinging coil device and the coils of the left linear moving coil device are connected in series through flexible wires, the coils of the right swinging coil device and the coils of the right linear moving coil device are connected in series through flexible wires, and the coils of the left linear moving coil device and the coils of the right linear moving coil device are connected in series through braided wires.
Description
Technical Field
The invention relates to a railway vehicle detection flaw detection device, in particular to a frame side beam magnetic particle flaw detector.
Background
The frame is included as an integral part of the running gear of the railway vehicle, and includes side members, which are an important component affecting the frame. In order to ensure good technical status and provide data support for the frame side beams, flaw detection needs to be performed on the frame side beams to determine whether the frame side beams have defects. The framework side beam comprises a left end part, a middle part and a right end part, wherein the left end part and the right end part are of an inverted U-shaped structure, and the middle part is of a straight beam structure. Two ends of the middle part of the straight beam structure are respectively connected with one end of the left end part and one end of the right end part of the inverted U-shaped structure. The frame side beams consisting of the left end part, the middle part and the right end part are of an integral structure. Because of the special bead structure of the side beam of the framework, the flaw detection is performed by manual segmentation at present, which not only takes labor and time, but also has poor flaw detection quality. So far, therefore, no equipment for performing comprehensive flaw detection on the defects of the frame side beams and having high flaw detection quality has been presented.
Disclosure of Invention
The invention aims to solve the technical problem of providing a frame side beam magnetic powder flaw detector which is labor-saving and time-saving, high in efficiency and good in flaw detection quality.
In order to solve the technical problems, the invention provides a frame side beam magnetic particle inspection machine, which comprises a frame, a supporting mechanism, a clamping rotating device and a longitudinal moving coil device; the clamping rotating device comprises a left clamping rotating device, a left electrode, a right clamping rotating device, a right electrode and a driving device, wherein the left clamping rotating device and the right clamping rotating device are respectively arranged at the left part and the right part of the top of the frame, the left electrode and the right electrode are respectively arranged on the left clamping rotating device and the right clamping rotating device, and the left clamping rotating device and the right clamping rotating device are connected with the driving device; the supporting mechanism is arranged in the frame; the vertical moving coil device comprises a left straight moving coil device, a left swinging coil device, a right straight moving coil device, a right swinging coil device and a guide rod, wherein the guide rod is arranged on the top of the frame and is positioned between the left clamping rotating device and the right clamping rotating device, the left swinging coil device and the right swinging coil device are respectively arranged at the left end and the right end of the guide rod, the left straight moving coil device and the right straight moving coil device are respectively positioned at the left part and the right part of the guide rod, the coils of the left swinging coil device and the left straight moving coil device are connected in series through flexible wires, the coils of the right swinging coil device and the coils of the right straight moving coil device are connected in series through flexible wires, and the coils of the left straight moving coil device and the coils of the right straight moving coil device are connected in series through braided wires.
The left clamping rotating device is symmetrical to the right clamping rotating device in structure, the left clamping rotating device comprises a bracket, a left cylinder, a left moving shaft, a left chuck and a left belt wheel, the bracket comprises a bottom surface, a front end surface and a rear end surface, the lower ends of the front end surface and the rear end surface are respectively arranged at the front end and the rear end of the bottom surface, a shaft seat is arranged on the front end surface, the left moving shaft is arranged on the shaft seat in a penetrating way, the left chuck is arranged at the front end of the left moving shaft, the left electrode is arranged on the left chuck, the rear end of the left moving shaft is in rotary connection with the front end of a piston rod of the left cylinder, the left cylinder is arranged on the rear end surface, the left belt wheel is sleeved on the left moving shaft, rotary and movable connection is formed between the left belt wheel and the left moving shaft, and the front end surface are in rotary connection; the driving device comprises a motor, a driving shaft and two driving belt pulleys, wherein the two driving belt pulleys are respectively arranged on the left part and the right part of the driving shaft, the motor is connected with the driving shaft, the two driving belt pulleys are respectively connected with the left belt pulley of the left clamping rotating device and the right belt pulley of the right clamping rotating device through a transmission belt, and the right electrode is arranged on a right clamping head of the right clamping rotating device.
The left linear movement coil device and the right linear movement coil device of the longitudinal movement coil device are symmetrical in structure, the left swing coil device and the right swing coil device are symmetrical in structure, the left swing coil device comprises a left swing coil, a U-shaped frame and a swing cylinder, the U-shaped frame is arranged on the frame, the middle part of the left swing coil is in rotary connection with the upper end of the U-shaped frame, the swing cylinder is hinged with the frame, and the front end of a piston rod of the swing cylinder is hinged with the left swing coil; the left linear moving coil device comprises a coil and a left moving cylinder, the coil comprises a plurality of left moving coils and a plurality of left moving seats corresponding to the left moving coils, the left moving coils are arranged on the left moving seats, and the left moving seats are sequentially sleeved on the guide rod from left to right; a connecting rod is arranged between two adjacent left movable seats, wherein a connecting rod fixing seat is arranged on the left movable seat positioned on the right side, a connecting rod movable seat is arranged on the left movable seat positioned on the left side, one end of the connecting rod is fixed on the connecting rod fixing seat, the other end of the connecting rod is arranged in a connecting rod hole of the connecting rod movable seat in a penetrating way, the connecting rod can move in the connecting rod hole of the connecting rod movable seat, and a limiting block is arranged at the other end of the connecting rod; the left moving seat at the rightmost side is hinged with the front end of a piston rod of the left moving cylinder, and the left moving cylinder is hinged with the frame.
The lengths of the connecting rods arranged between the two adjacent left movable seats are the same.
The lifting mechanism comprises a supporting plate, a seat plate and a lifting cylinder, wherein a guide column is arranged on the lower surface of the supporting plate, the guide column is arranged in a guide hole of the seat plate in a penetrating mode, a piston rod of the lifting cylinder is hinged to the lower surface of the supporting plate, the lifting cylinder is arranged on the seat plate, and the seat plate is fixed inside the frame.
The coil of the left straight line moving coil device, the coil of the left swinging coil device, the coil of the right straight line moving coil device and the coil of the right swinging coil device are all rectangular structures.
The coil of the left linear moving coil device consists of three to seven left moving coils, and the coil of the right linear moving coil device consists of three to seven right moving coils.
The motor is a variable frequency motor.
The left belt wheel, the right belt wheel and the driving belt wheel are synchronous belt wheels, and the driving belt is a synchronous driving belt.
When the frame side beam magnetic particle inspection machine is used, the frame side beam is placed on the supporting plate of the supporting mechanism, the supporting plate is lifted by the supporting mechanism, the left clamping rotating device and the right clamping rotating device clamp the left end and the right end of the frame side beam simultaneously, the left electrode and the right electrode are respectively contacted with the left end and the right end of the frame side beam, then the supporting mechanism descends to return to the original positions, the coil of the left linear movement coil device and the coil of the right linear movement coil device of the longitudinal movement coil device relatively move, the frame side beam is positioned in the coil of the left linear movement coil device and the coil of the right linear movement coil device, the coil of the left swinging coil device and the coil of the right swinging coil device swing by an angle respectively, and the left end part and the right end part of the frame side beam are positioned in the coil of the left swinging coil device and the coil of the right swinging coil device. Then electrifying, rotating the side beam of the framework, and carrying out flaw detection operation according to a program. The left swing coil device and the right swing coil device are respectively swung at an angle so that the left end and the right end of the frame side member are positioned in the left swing coil device and the right swing coil device. Then electrifying, rotating the side beam of the framework, and carrying out flaw detection operation according to a program.
From the above, the magnetic particle inspection machine for the side beam of the framework can perform mechanical flaw detection operation on the special bead structure of the side beam of the framework, and compared with the prior art, the magnetic particle inspection machine for the side beam of the framework has the advantages of labor saving, time saving, high efficiency and good flaw detection quality.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic view of the structure of the present invention in an opened state of the clamping frame side member and the longitudinally moving coil device.
Detailed Description
In fig. 1, the invention relates to a frame side beam magnetic particle inspection machine, which comprises a frame 12, a supporting mechanism, a clamping rotating device and a longitudinal moving coil device. The clamping and rotating device comprises a left clamping and rotating device, a left electrode 10, a right clamping and rotating device 18, a right electrode and a driving device. Left and right clamping and rotating devices 18 are provided at left and right portions of the top of the frame 12, respectively. The left electrode 10 and the right electrode are provided on the left clamping rotation means and the right clamping rotation means 18, respectively. The left clamping rotating device and the right clamping rotating device are connected with the driving device. The jacking mechanism is disposed within the housing 12. The longitudinally moving coil device includes a left linearly moving coil device, a left swinging coil device, a right linearly moving coil device 16, a right swinging coil device 14, and a guide rod 20. A guide bar 20 is provided on top of the frame 12 between the left and right clamping rotational means 18. The left swing coil device and the right swing coil device 14 are provided at the left end and the right end of the guide bar 20, respectively. The left and right rectilinear motion coil devices 16 are located at left and right portions of the guide bar 20, respectively. The coils of the left swing coil device and the coils of the left straight line moving coil device are connected in series through flexible wires, the coils of the right swing coil device 14 and the coils of the right straight line moving coil device 16 are connected in series through flexible wires, and the coils of the left straight line moving coil device and the coils of the right straight line moving coil device 16 are connected in series through braided wires.
The left clamping and rotating device is symmetrical to the right clamping and rotating device 18 in structure for the convenience of manufacture and simplicity of construction. The left clamping and rotating device is taken as an example for detailed description, and as shown in fig. 1 and 2, the left clamping and rotating device comprises a bracket, a left air cylinder 1, a left moving shaft 6, a left chuck 7 and a left belt wheel, and as shown in fig. 2, the bracket comprises a bottom surface 23, a front end surface 22 and a rear end surface 2. The lower ends of the front end face 22 and the rear end face 2 are provided at the front end and the rear end of the bottom face 23, respectively. The front end face 22 is provided with a shaft seat 5, and the left movable shaft 6 is arranged on the shaft seat 5 in a penetrating way. A left chuck 7 is provided on the front end of the left movable shaft 6, and the left electrode 10 is provided on the left chuck 7. The rear end of the left movable shaft 6 is rotatably connected with the front end of a piston rod of the left cylinder 1, and the left cylinder 1 is arranged on the rear end surface 2. The left belt wheel is sleeved on the left movable shaft 6, and the left belt wheel and the left movable shaft 6 form rotary and movable connection. In practice, in order to achieve a rotary and mobile connection between the left pulley and the left movable shaft 6, the shaft hole of the left pulley may be constituted by a hole constituted by a major arc chord, and the structure of the portion of the left movable shaft 6 that moves relative to the left pulley is also made to match the structure of the hole of the left pulley constituted by a major arc chord. In practice, in order to realize the rotary connection between the left belt pulley and the front end surface 22, the end surface of the left belt pulley can be provided with a sleeve, the front end surface 22 is provided with a fixed sleeve, the sleeve on the end surface of the left belt pulley is sleeved on the fixed sleeve, and an axial limiting ring is axially arranged between the sleeve on the end surface of the left belt pulley and the fixed sleeve on the front end surface 22, so that the rotary connection is formed between the left belt pulley and the front end surface 22. The driving device comprises a motor, a driving shaft and two driving belt pulleys, wherein the two driving belt pulleys are respectively arranged on the left part and the right part of the driving shaft, the motor is connected with the driving shaft, the two driving belt pulleys are respectively connected with the left belt pulley of the left clamping rotating device and the right belt pulley 17 of the right clamping rotating device 18 through a transmission belt, and the right electrode is arranged on the right chuck 15 of the right clamping rotating device 18.
For ease of manufacture and simplicity of construction, the left rectilinear motion coil arrangement of the longitudinally moving coil arrangement is symmetrical to the construction of the right rectilinear motion coil arrangement 16, and the left oscillating coil arrangement is symmetrical to the construction of the right oscillating coil arrangement 14. Here, the left swing coil apparatus and the left rectilinear motion coil apparatus are described in detail as examples, and as shown in fig. 1 and 2, the left swing coil apparatus includes a left swing coil 3, a U-shaped frame 9, and a swing cylinder 8. The U-shaped frame 9 is arranged on the frame 12, the middle part of the left swinging coil 3 is rotatably connected with the upper end of the U-shaped frame 9, the swinging air cylinder 8 is hinged with the frame 12, and the front end of a piston rod of the swinging air cylinder 8 is hinged with the left swinging coil 3. The left linear movement coil device comprises a coil and a left movement cylinder 11, the coil comprises a plurality of left movement coils 4 and a plurality of left movement seats 21 corresponding to the left movement coils 4, the left movement coils 4 are arranged on the left movement seats 21, and the left movement seats 21 are sequentially sleeved on the guide rod 20 from left to right. A connecting rod is arranged between two adjacent left movable seats 21, wherein a connecting rod fixing seat is arranged on the left movable seat positioned on the right side, a connecting rod movable seat is arranged on the left movable seat positioned on the left side, one end of the connecting rod is fixed on the connecting rod fixing seat, the other end of the connecting rod is arranged in a connecting rod hole of the connecting rod movable seat in a penetrating way, the connecting rod can move in the connecting rod hole of the connecting rod movable seat, and a limiting block is arranged at the other end of the connecting rod. The left moving seat 21 positioned at the rightmost side of the left straight moving coil device coil is hinged with the front end of the piston rod of the left moving cylinder 11, and the left moving cylinder 11 is hinged with the frame 12.
In order to ensure that the distance between the left moving coil 4 of the left rectilinear moving coil device and the right moving coil of the right rectilinear moving coil device 16 is the same to improve the magnetizing effect, the lengths of the links provided between the adjacent two left moving seats or the adjacent two right moving seats are the same.
In order to simplify the structure and facilitate the manufacture, the supporting mechanism comprises a supporting plate 13, a seat plate and a lifting cylinder, the lower surface of the supporting plate 13 is provided with a guide column, the guide column is arranged in a guide hole of the seat plate in a penetrating mode, a piston rod of the lifting cylinder is hinged to the lower surface of the supporting plate 13, the lifting cylinder is arranged on the seat plate, and the seat plate is fixed in the frame.
For simplicity of construction and ease of manufacture, the coils of the left rectilinear motion coil arrangement, the left swing coil arrangement, the right rectilinear motion coil arrangement 16, and the right swing coil arrangement 14 are all rectangular in configuration.
To improve the magnetizing effect, the coils of the left rectilinear motion coil device are composed of three to seven left motion coils 4, and the coils of the right rectilinear motion coil device 16 are composed of three to seven right motion coils.
In order to facilitate speed regulation, the motor is a variable frequency motor.
In order to improve the rotation precision, the left belt pulley, the right belt pulley 17 and the driving belt pulley are synchronous belt pulleys, and the driving belt is a synchronous driving belt.
When the frame side beam magnetic particle inspection machine is used, the frame side beam 25 is placed on the supporting plate 13 of the supporting mechanism, the lifting cylinder of the supporting mechanism lifts the supporting plate 13, the left cylinder 1 of the left clamping rotating device pushes the left moving shaft 6, the left moving shaft 6 drives the left clamping head 7 to move towards the left end of the frame side beam 25, the right cylinder 19 of the right clamping rotating device pushes the right moving shaft, the right moving shaft drives the right clamping head 15 to move towards the right end of the frame side beam 25, the left clamping head 7 and the right clamping head 15 clamp the left end and the right end of the frame side beam 25 along with the movement of the left clamping head 7 and the right clamping head 15, and the left electrode 10 and the right electrode are simultaneously contacted with the left end and the right end of the frame side beam 25. The jacking mechanism is then lowered back to the home position. The left moving coil positioned on the rightmost side of the left moving coils 4 in the left straight moving coil device is driven by the left moving cylinder 11 to move rightwards, and after the rightmost left moving coil moves rightwards along with the rightmost left moving coil, the rightmost left moving coil moves for a distance which is the length of the connecting rod except the width of the connecting rod fixing seat, the width of the connecting rod moving seat and the width of the limiting block, the adjacent left moving coils are driven to move, and the like until the left moving coils 4 are all positioned at the left part of the guide rod 20 at equal intervals, and the right moving coils in the coils of the right straight moving coil device 16 are all positioned at the right part of the guide rod 20 at equal intervals. At this time, the frame side member 25 is located at a portion in the longitudinal direction in the left moving coil device 4 and the right moving coil device right moving coil. Similarly, the left swing coil 3 of the left swing coil device and the right swing coil of the right swing coil device 14 are swung by an angle, respectively, so that the left end and the right end of the frame side member 25 are located in the left swing coil 3 of the left swing coil device and the right swing coil of the right swing coil device. Then the left electrode 10 and the right electrode of the clamping rotation device and the coil of the longitudinal moving coil device are electrified, the frame side beam 25 is magnetized, and the motor drives the left moving shaft 6 and the right moving shaft of the clamping rotation device to rotate through the transmission belt, so that the frame side beam 25 rotates, and then flaw detection operation is carried out according to a program.
From the above, the magnetic particle inspection machine for the side beam of the framework can perform mechanical flaw detection operation on the special bead structure of the side beam of the framework, and compared with the prior art, the magnetic particle inspection machine for the side beam of the framework has the advantages of labor saving, time saving, high efficiency and good flaw detection quality.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (7)
1. The magnetic particle inspection machine for the side beam of the framework is characterized by comprising a frame, a supporting mechanism, a clamping rotating device and a longitudinal moving coil device; the clamping rotating device comprises a left clamping rotating device, a left electrode, a right clamping rotating device, a right electrode and a driving device, wherein the left clamping rotating device and the right clamping rotating device are respectively arranged at the left part and the right part of the top of the frame, the left electrode and the right electrode are respectively arranged on the left clamping rotating device and the right clamping rotating device, and the left clamping rotating device and the right clamping rotating device are connected with the driving device; the supporting mechanism is arranged in the frame; the vertical moving coil device comprises a left straight moving coil device, a left swinging coil device, a right straight moving coil device, a right swinging coil device and a guide rod, wherein the guide rod is arranged on the top of the frame and is positioned between the left clamping rotating device and the right clamping rotating device, the left swinging coil device and the right swinging coil device are respectively arranged at the left end and the right end of the guide rod, the left straight moving coil device and the right straight moving coil device are respectively positioned at the left part and the right part of the guide rod, the coils of the left swinging coil device and the left straight moving coil device are connected in series through flexible wires, the coils of the right swinging coil device and the coils of the right straight moving coil device are connected in series through flexible wires, and the coils of the left straight moving coil device and the coils of the right straight moving coil device are connected in series through braided wires:
the left clamping rotating device is symmetrical to the right clamping rotating device in structure, the left clamping rotating device comprises a bracket, a left cylinder, a left moving shaft, a left chuck and a left belt wheel, the bracket comprises a bottom surface, a front end surface and a rear end surface, the lower ends of the front end surface and the rear end surface are respectively arranged at the front end and the rear end of the bottom surface, a shaft seat is arranged on the front end surface, the left moving shaft is arranged on the shaft seat in a penetrating way, the left chuck is arranged at the front end of the left moving shaft, the left electrode is arranged on the left chuck, the rear end of the left moving shaft is in rotary connection with the front end of a piston rod of the left cylinder, the left cylinder is arranged on the rear end surface, the left belt wheel is sleeved on the left moving shaft, rotary and movable connection is formed between the left belt wheel and the left moving shaft, and the front end surface are in rotary connection; the driving device comprises a motor, a driving shaft and two driving belt pulleys, wherein the two driving belt pulleys are respectively arranged on the left part and the right part of the driving shaft, the motor is connected with the driving shaft, the two driving belt pulleys are respectively connected with the left belt pulley of the left clamping rotating device and the right belt pulley of the right clamping rotating device through a transmission belt, and the right electrode is arranged on a right clamping head of the right clamping rotating device:
the left linear movement coil device and the right linear movement coil device of the longitudinal movement coil device are symmetrical in structure, the left swing coil device and the right swing coil device are symmetrical in structure, the left swing coil device comprises a left swing coil, a U-shaped frame and a swing cylinder, the U-shaped frame is arranged on the frame, the middle part of the left swing coil is in rotary connection with the upper end of the U-shaped frame, the swing cylinder is hinged with the frame, and the front end of a piston rod of the swing cylinder is hinged with the left swing coil; the left linear moving coil device comprises a coil and a left moving cylinder, the coil comprises a plurality of left moving coils and a plurality of left moving seats corresponding to the left moving coils, the left moving coils are arranged on the left moving seats, and the left moving seats are sequentially sleeved on the guide rod from left to right; a connecting rod is arranged between two adjacent left movable seats, wherein a connecting rod fixing seat is arranged on the left movable seat positioned on the right side, a connecting rod movable seat is arranged on the left movable seat positioned on the left side, one end of the connecting rod is fixed on the connecting rod fixing seat, the other end of the connecting rod is arranged in a connecting rod hole of the connecting rod movable seat in a penetrating way, the connecting rod can move in the connecting rod hole of the connecting rod movable seat, and a limiting block is arranged at the other end of the connecting rod; the left moving seat at the rightmost side is hinged with the front end of a piston rod of the left moving cylinder, and the left moving cylinder is hinged with the frame.
2. A frame side beam magnetic particle inspection machine as claimed in claim 1, wherein the length of the links provided between the adjacent two left movable seats is the same.
3. A frame side beam magnetic particle inspection machine according to claim 1, wherein the lifting mechanism comprises a pallet, a seat plate and a lifting cylinder, the lower surface of the pallet is provided with a guide post, the guide post is arranged in a guide hole of the seat plate in a penetrating way, a piston rod of the lifting cylinder is hinged with the lower surface of the pallet, the lifting cylinder is arranged on the seat plate, and the seat plate is fixed inside the frame.
4. A frame side beam magnetic particle inspection machine according to claim 3, wherein the coils of the left rectilinear motion coil arrangement, the left swinging coil arrangement, the right rectilinear motion coil arrangement and the right swinging coil arrangement are all rectangular in configuration.
5. A frame side beam magnetic particle inspection machine as claimed in claim 1, wherein the coils of the left rectilinear motion coil arrangement are comprised of three to seven left motion coils and the coils of the right rectilinear motion coil arrangement are comprised of three to seven right motion coils.
6. A frame side beam magnetic particle inspection machine as claimed in claim 1, wherein the motor is a variable frequency motor.
7. A frame side beam magnetic particle inspection machine as claimed in claim 1, wherein the left, right and drive pulleys are synchronous pulleys and the drive belt is a synchronous drive belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810783026.6A CN108572218B (en) | 2018-07-17 | 2018-07-17 | Frame side beam magnetic powder inspection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810783026.6A CN108572218B (en) | 2018-07-17 | 2018-07-17 | Frame side beam magnetic powder inspection machine |
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| Publication Number | Publication Date |
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| CN108572218A CN108572218A (en) | 2018-09-25 |
| CN108572218B true CN108572218B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810783026.6A Active CN108572218B (en) | 2018-07-17 | 2018-07-17 | Frame side beam magnetic powder inspection machine |
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| CN (1) | CN108572218B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542716A (en) * | 2019-09-06 | 2019-12-06 | 中车南京浦镇车辆有限公司 | automatic flaw detector for bullet train frame and working method of automatic flaw detector |
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| CN108572218A (en) | 2018-09-25 |
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