Magnetic flaw detection device for crankshaft

Abstract

The utility model relates to the technical field of crankshaft detection devices, in particular to a crankshaft magnetic flaw detection device which comprises a base, a fixing assembly, a magnetizing assembly and a spraying assembly, the fixing assembly comprises a lead screw sleeve, a fixing lead screw, a rotating seat, a chuck and a guide rod, the lead screw sleeve is fixedly connected with the base and located on the side face of the base, the fixing lead screw is rotationally connected with the lead screw sleeve, penetrates through the lead screw sleeve and the rotating seat to be rotationally connected with the fixing lead screw and located in the middle of the base, and the chuck is fixedly connected with the rotating seat and located on the outer side of the rotating seat. The number of the guide rods is two, the two guide rods are fixedly connected with the chuck and penetrate through the base, the magnetizing assembly and the spraying assembly to be connected with the base, and the problem that when the crankshaft has small cracks, the damage condition of the crankshaft cannot be judged manually accurately, and a series of accidents are caused is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of crankshaft testing devices, and in particular to a magnetic flaw detection device for crankshafts. Background Technology

[0002] Crankshafts typically break from the smallest crack. During operation, the crack gradually expands until it breaks suddenly at a certain point. Brown areas are often found on the fracture surface, which are obviously old cracks. The shiny, glossy texture is the trace of the later, sudden breakage.

[0003] However, when the crankshaft has tiny cracks, it is impossible for humans to accurately determine the extent of the damage, leading to a series of accidents. Utility Model Content

[0004] The purpose of this invention is to provide a magnetic flaw detection device for crankshafts, which solves the problem that when crankshafts have small cracks, it is impossible for humans to accurately judge the damage to the crankshaft, leading to a series of accidents.

[0005] To achieve the above objectives, this utility model provides a magnetic flaw detection device for crankshafts, comprising a base, a fixing assembly, a magnetizing assembly, and a spraying assembly. The fixing assembly includes a lead screw sleeve, a fixed lead screw, a rotating seat, a clamp, and guide rods. The lead screw sleeve is fixedly connected to the base and located on the side of the base. The fixed lead screw is rotatably connected to the lead screw sleeve and passes through the lead screw sleeve. The rotating seat is rotatably connected to the fixed lead screw and located in the middle of the base. The clamp is fixedly connected to the rotating seat and located on the outside of the rotating seat. There are two guide rods, each fixedly connected to the clamp and passing through the base. The magnetizing assembly and the spraying assembly are respectively connected to the base.

[0006] The fixing assembly further includes a rotating motor and a fixing plate. The rotating motor is fixedly connected to the base and located on the outside of the base. The fixing plate is connected to the rotating motor and located in the middle of the base.

[0007] The magnetization assembly includes a magnetizing cylinder and a handle. The magnetizing cylinder is slidably connected to the base and passes through the base. The handle is fixedly connected to the magnetizing cylinder and is located on top of the magnetizing cylinder.

[0008] The spraying assembly includes a magnetic powder box, a hinge, and a spraying frame. The magnetic powder box is fixedly connected to the base and located on top of the base. The hinge is fixedly connected to the magnetic powder box and located outside the magnetic powder box. The spraying frame is fixedly connected to the hinge and located on top of the hinge.

[0009] The spraying assembly further includes a spray pump, a diverter pipe, and nozzles. The spray pump is fixedly connected to the magnetic powder box and located outside the magnetic powder box. The diverter pipe is fixedly connected to the spray pump and passes through the spray frame. There are multiple nozzles, each of which is fixedly connected to the diverter pipe and located inside the spray frame.

[0010] This invention relates to a magnetic flaw detection device for crankshafts. The base provides support for the device, the lead screw sleeve limits the position of the fixed lead screw, and the fixed lead screw controls the position of the rotating seat and the clamping plate. The clamping plate cooperates with the fixed plate to facilitate crankshaft fixation. The guide rod guides the clamping plate. During crankshaft inspection, one end of the crankshaft is fixed to the surface of the fixed plate. The fixed lead screw is then rotated, causing the rotating seat and the clamping plate to move along the guide rod, thus clamping the crankshaft. The magnetization component uniformly magnetizes the crankshaft, and the spraying component sprays magnetic powder onto the magnetized crankshaft. This facilitates the detection of small cracks in the crankshaft, solving the problem that when a crankshaft has small cracks, it is difficult for humans to accurately determine the damage, leading to a series of accidents. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0012] Figure 1 This is a schematic diagram of the overall structure of the magnetic flaw detection device for crankshaft according to the first embodiment of this utility model.

[0013] Figure 2 This is a structural schematic diagram of the fixing component of the first embodiment of this utility model.

[0014] Figure 3 This is a schematic diagram of the structure of the magnetizing component according to the first embodiment of this utility model.

[0015] Figure 4 This is a schematic diagram of the spraying assembly according to the first embodiment of the present invention.

[0016] In the diagram: 101-base, 102-lead screw sleeve, 103-fixed lead screw, 104-rotating seat, 105-clamping plate, 106-guide rod, 107-rotating motor, 108-fixed plate, 109-magnetizing cylinder, 110-handle, 111-magnetic powder box, 112-hinge, 113-spray frame, 114-spray pump, 115-diverter pipe, 116-nozzle. Detailed Implementation

[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0018] The first embodiment of this application is as follows:

[0019] Please see Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of the magnetic flaw detection device for crankshafts according to the first embodiment of this utility model. Figure 2 This is a structural schematic diagram of the fixing component according to the first embodiment of this utility model. Figure 3 This is a schematic diagram of the magnetization component according to the first embodiment of this utility model. Figure 4 This is a schematic diagram of the spraying assembly of the first embodiment of the present invention. The present invention provides a magnetic flaw detection device for crankshafts, including a base 101, a fixing assembly, a magnetizing assembly, and a spraying assembly. The fixing assembly includes a lead screw sleeve 102, a fixing lead screw 103, a rotating seat 104, a clamping plate 105, a guide rod 106, a rotating motor 107, and a fixing plate 108. The magnetizing assembly includes a magnetizing cylinder 109 and a handle 110. The spraying assembly includes a magnetic powder box 111, a hinge 112, a spraying frame 113, a spraying pump 114, a diverter pipe 115, and a nozzle 116. The aforementioned solution solves the problem that when a crankshaft has small cracks, it is impossible for humans to accurately judge the damage condition of the crankshaft, which can lead to a series of accidents.

[0020] In this specific embodiment, the lead screw sleeve 102 is fixedly connected to the base 101 and located on the side of the base 101. The fixed lead screw 103 is rotatably connected to the lead screw sleeve 102 and passes through the lead screw sleeve 102. The rotating seat 104 is rotatably connected to the fixed lead screw 103 and located in the middle of the base 101. The clamping plate 105 is fixedly connected to the rotating seat 104 and located on the outside of the rotating seat 104. There are two guide rods 106, each fixedly connected to the clamping plate 105 and passing through the base 101. The magnetizing assembly and the spraying assembly are connected to the base 101. The base 101 provides support for the device. The fixed lead screw 103 is used to limit the position of the rotating seat 104 and the clamp 105. The clamp 105 cooperates with the fixed plate 108 to facilitate the fixation of the crankshaft. The guide rod 106 is used to guide the clamp 105. When the crankshaft is inspected, one end of the crankshaft is fixed to the surface of the fixed plate 108, and then the fixed lead screw 103 is rotated to drive the rotating seat 104 and the clamp 105 to move along the guide rod 106, so that the clamp 105 and the fixed plate 108 clamp the crankshaft. The magnetizing component uniformly magnetizes the crankshaft, and then the spraying component sprays magnetic powder onto the magnetized crankshaft to facilitate the detection of small cracks in the crankshaft.

[0021] The rotating motor 107 is fixedly connected to the base 101 and located on the outside of the base 101. The fixed disk 108 is connected to the rotating motor 107 and located in the middle of the base 101. The rotating motor 107 provides support and rotation for the fixed disk 108. The fixed disk 108 is used to fix the crankshaft. After the crankshaft is fixed, when it needs to be magnetized, the rotating motor 107 rotates, causing the fixed disk 108 and the crankshaft to rotate, which facilitates uniform magnetization of the crankshaft. Then, the spraying assembly sprays magnetic powder onto the crankshaft. At the same time, the rotating motor 107 rotates, which facilitates uniform spraying of magnetic powder onto the magnetized crankshaft.

[0022] Secondly, the magnetizing cylinder 109 is slidably connected to the base 101 and passes through the base 101. The handle 110 is fixedly connected to the magnetizing cylinder 109 and is located on the top of the magnetizing cylinder 109. The inside of the magnetizing cylinder 109 is provided with a spiral coil, which is customized according to the shape of the crankshaft. This can be used to magnetize the crankshaft. By setting a sufficiently strong current externally, the need to magnetize different positions of the crankshaft can be met. The handle 110 makes it easy to fasten the magnetizing cylinder 109 between the rotating seat 104 and the clamp 105.

[0023] Furthermore, the magnetic powder box 111 is fixedly connected to the base 101 and located on top of the base 101. The hinge 112 is fixedly connected to the magnetic powder box 111 and located outside the magnetic powder box 111. The spray frame 113 is fixedly connected to the hinge 112 and located on top of the hinge 112. The magnetic powder box 111 is used to store magnetic powder and prevent it from getting damp and leaking. The hinge 112 is used to support and rotate the spray frame 113. After the crankshaft is magnetized, the spray frame 113 is rotated along the hinge 112 to cover the top of the base 101, facilitating subsequent spraying of the crankshaft.

[0024] Finally, the spray pump 114 is fixedly connected to the magnetic powder box 111 and located outside the magnetic powder box 111. The diverter pipe 115 is fixedly connected to the spray pump 114 and passes through the spray frame 113. There are multiple nozzles 116, each fixedly connected to the diverter pipe 115 and located inside the spray frame 113. The spray pump 114 is used to draw out the magnetic powder from the magnetic powder box 111 and spray it evenly onto the crankshaft through the diverter pipe 115 via the nozzles 116, so that the magnetic powder can be evenly adsorbed onto the surface of the crankshaft. The crankshaft can be detected using a magnetic sensor, such as a Hall sensor. The sensor spacing is set inside the spray frame 113 according to the crankshaft defect detection accuracy requirements, so as to facilitate the detection of crankshaft defects.

[0025] In the magnetic flaw detection device for crankshafts using this embodiment, the base 101 provides support for the device, the lead screw sleeve 102 provides a limiting function for the fixed lead screw 103, the fixed lead screw 103 controls the position of the rotating seat 104 and the clamp 105, the clamp 105 cooperates with the fixed plate 108 to facilitate the fixation of the crankshaft, and the guide rod 106 guides the clamp 105. During crankshaft inspection, one end of the crankshaft is fixed to the... The surface of the fixed plate 108 is rotated, and the fixed screw 103 is rotated to drive the rotating seat 104 and the clamping plate 105 to move along the guide rod 106, so that the clamping plate 105 and the fixed plate 108 clamp the crankshaft. The magnetizing component uniformly magnetizes the crankshaft, and then the spraying component sprays magnetic powder onto the magnetized crankshaft, which facilitates the detection of small cracks in the crankshaft. This solves the problem that when the crankshaft has small cracks, it is impossible for humans to accurately judge the damage of the crankshaft, which can lead to a series of accidents.

[0026] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A magnetic flaw detection device for a crankshaft, comprising a base, characterized in that, It also includes fixing components, magnetizing components, and spraying components; The fixing assembly includes a lead screw sleeve, a fixed lead screw, a rotating seat, a clamp, and guide rods. The lead screw sleeve is fixedly connected to the base and located on the side of the base. The fixed lead screw is rotatably connected to the lead screw sleeve and passes through the lead screw sleeve. The rotating seat is rotatably connected to the fixed lead screw and located in the middle of the base. The clamp is fixedly connected to the rotating seat and located on the outside of the rotating seat. There are two guide rods, each fixedly connected to the clamp and passing through the base. The magnetizing assembly and the spraying assembly are respectively connected to the base.

2. The magnetic flaw detection device for crankshafts as described in claim 1, characterized in that, The fixing assembly also includes a rotating motor and a fixing plate. The rotating motor is fixedly connected to the base and located on the outside of the base. The fixing plate is connected to the rotating motor and located in the middle of the base.

3. The magnetic flaw detection device for crankshafts as described in claim 1, characterized in that, The magnetization assembly includes a magnetizing cylinder and a handle. The magnetizing cylinder is slidably connected to the base and passes through the base. The handle is fixedly connected to the magnetizing cylinder and is located on top of the magnetizing cylinder.

4. The magnetic flaw detection device for crankshafts as described in claim 3, characterized in that, The spraying assembly includes a magnetic powder box, a hinge, and a spraying frame. The magnetic powder box is fixedly connected to the base and located on top of the base. The hinge is fixedly connected to the magnetic powder box and located outside the magnetic powder box. The spraying frame is fixedly connected to the hinge and located on top of the hinge.

5. The magnetic flaw detection device for crankshafts as described in claim 4, characterized in that, The spraying assembly also includes a spray pump, a diverter pipe, and nozzles. The spray pump is fixedly connected to the magnetic powder box and located outside the magnetic powder box. The diverter pipe is fixedly connected to the spray pump and passes through the spray frame. There are multiple nozzles, each of which is fixedly connected to the diverter pipe and located inside the spray frame.

Images