Combined lifting force test block for magnetic particle detection

Abstract

The utility model provides a kind of combined lifting force test block for magnetic powder detection, it is related to lifting force test block field, including three different quality test block A, test block B and test block C, also include connecting block, plug, round hole, slot, round groove, counterweight hole and lead block;The modularization quick combination of three test blocks can accurately reach standard lifting force weight value and then facilitate subsequent lifting force test to alternating current electromagnetic yoke, cross magnetic yoke or direct current (including rectified electricity) magnetic yoke (permanent magnetic yoke) of the present application, the present application does not need to install weight, test block combination or single use can be stably placed on test table, and test block combination can be tightly stacked each other in turn and then compared with the space ratio of hanging and placing significantly reduced, facilitate the efficient development of subsequent test process.

Description

Technical Field

[0001] This utility model relates to the field of lifting force test blocks, and more specifically, to a combined lifting force test block for magnetic particle testing. Background Technology

[0002] Currently, when using the magnetic yoke method for magnetic particle testing, it is necessary to test its lifting force. The current requirements are that, when using the maximum yoke spacing, the AC electromagnetic yoke should have a lifting force of at least 45N, the DC (including rectified) magnetic yoke or permanent magnetic yoke should have a lifting force of at least 177N, and the cross magnetic yoke should have a lifting force of at least 118N (the gap between the magnetic pole and the time surface should not be greater than 0.5mm). The traditional method requires several counterweights to be hung on the lifting force test block to achieve the target lifting force weight value. After the lifting force test block is hung with weights, it cannot be placed stably on the test bench, and the scattered hanging takes up a lot of space (it cannot be tightly stacked). In addition, the weights are prone to errors in force transmission due to the deviation of the suspension angle or rope friction, which makes the subsequent testing process inconvenient. Therefore, there is currently a lack of a design that can quickly and modularly combine different standard lifting force test blocks to accurately achieve the standard lifting force weight value and save space. Utility Model Content

[0003] The purpose of this invention is to solve the problems mentioned in the background art, and to propose a combined lifting force test block for magnetic particle testing.

[0004] The technical solution adopted by this utility model to solve its technical problem is: A combined lifting force test block for magnetic particle testing includes three test blocks A, B, and C of different masses, as well as a connecting block, insert block, round hole, slot, round groove, counterweight hole, and lead block. Several connecting blocks with a cylindrical shape and uniform size are symmetrically provided with insert blocks at both ends, and the connecting blocks and insert blocks are integrally formed; Circular holes of equal diameter are respectively opened in the center of test block A, test block B and test block C, and the circular holes on test block A are blind holes, while the circular holes on test block B and test block C are through holes; The slots that cooperate with the inserts and correspond one-to-one are respectively opened on test block A, test block B and test block C. The slots on test block B and test block C are symmetrically distributed on both sides, while the slots on test block A are distributed on one side. Circular grooves of equal diameter are respectively opened inside test block A, test block B and test block C, and the circular grooves are connected to the slots and allow the inserts to rotate inside them; Counterweight holes of equal diameter are respectively opened on test block A, test block B and test block C, and the counterweight holes are blind holes; Lead blocks are quantitatively filled and compacted into the counterweight holes.

[0005] Furthermore, the main body shape of test block A, test block B and test block C are all circular and the diameter is greater than or equal to 210 mm.

[0006] Furthermore, the test block A after being filled with lead blocks is the weight of the test block required for the lifting force of the AC electromagnetic yoke, the test block A combined with test block C after being filled with lead blocks is the weight of the test block required for the lifting force of the cross magnetic yoke, and the test block A combined with test block B and test block C after being filled with lead blocks is the weight of the test block required for the lifting force of the DC (including rectified) magnetic yoke or permanent magnetic yoke.

[0007] Furthermore, the surfaces of the test blocks A, B, and C, or the test blocks A and C, are tightly fitted after installation.

[0008] Furthermore, the diameter of the circular hole is 20-25mm, the depth of the slot is 10-15mm, the diameter of the circular groove is 25-30mm, and the depth of the counterweight hole is 6-8mm.

[0009] Compared with the prior art, the beneficial effects of this utility model are: Compared to existing technologies, this application can accurately achieve the standard lifting force weight value by modularly and quickly combining three test blocks, thus facilitating subsequent lifting force testing of AC electromagnetic yokes, cross magnetic yokes, or DC (including rectified) magnetic yokes (permanent magnetic yokes). This application does not require the installation of weights, and the test blocks can be stably placed on the test platform whether used in combination or individually. Furthermore, the test blocks can be tightly stacked after combination, significantly reducing the space occupied compared to hanging, which facilitates the efficient conduct of subsequent testing procedures. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the combination of test block A and test block C; Figure 3 This is a schematic diagram of test block A; Figure 4 This is a schematic diagram of test block B; Figure 5 Schematic diagram of test block C; Figure 6 This is a schematic diagram of the connecting block; Figure 7 This is a schematic diagram of the counterweight hole; Figure label: 1. Test block A; 2. Test block B; 3. Test block C; 4. Connecting block; 41. Insert block; 5. Round hole; 6. Slot; 7. Round groove; 8. Counterweight hole; 9. Lead block. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments: like Figures 1 to 7 As shown, a combined lifting force test block for magnetic particle testing includes three test blocks A1, B2, and C3 of different masses (specifically, the main body shape of test blocks A1, B2, and C3 is circular with a diameter greater than or equal to 210 mm, and the surfaces of test blocks A1, B2, and C3, or test blocks A1 and C3, are tightly fitted after assembly). It also includes a connecting block 4, an insert block 41, a circular hole 5, a slot 6, a circular groove 7, a counterweight hole 8, and a lead block 9. Several connecting blocks 4 with cylindrical shapes and uniform dimensions are symmetrically provided with insert blocks 41 at both ends, and the connecting blocks 4 and the insert blocks 41 are integrally formed; Circular holes 5 of equal diameter are respectively opened in the center of test block A1, test block B2 and test block C3, and the circular hole 5 on test block A1 is a blind hole, while the circular holes 5 on test block B2 and test block C3 are through holes. The slots 6 that cooperate with the insert 41 and correspond one-to-one are respectively opened on test block A1, test block B2 and test block C3. The slots 6 on test block B2 and test block C3 are symmetrically distributed on both sides, while the slots 6 on test block A1 are distributed on one side. Circular grooves 7 of equal diameter are respectively opened inside test block A1, test block B2 and test block C3, and the circular grooves 7 are connected to the slot 6 and allow the insert 41 to rotate inside them; The counterweight holes 8 of equal diameter are respectively opened on the test block A1, test block B2 and test block C3, and the counterweight holes 8 are blind holes; Lead blocks 9 are quantitatively filled and compacted into the counterweight hole 8.

[0012] Specific implementations of the embodiments of this utility model, such as Figures 3 to 5 As shown, test block A1 after filling with lead block 9 is the weight of the test block required for the lifting force of the AC electromagnetic yoke. Test block C3 combined with test block A1 after filling with lead block 9 is the weight of the test block required for the lifting force of the cross magnetic yoke. Test block B2 combined with test block C3 after filling with lead block 9 is the weight of the test block required for the lifting force of the DC (including rectified) magnetic yoke or permanent magnetic yoke. Specifically, the weight of test block A1 after filling with lead block 9 is 4.5 kg, the weight of test block B2 after filling with lead block 9 is 5.9 kg, and the weight of test block B2 after filling with lead block 9 is 7.3 kg. The weight error of the three test blocks does not exceed 10 g.

[0013] In a further refinement of the embodiment of this utility model, the diameter of the circular hole 5 is 20-25mm, the depth of the slot 6 is 10-15mm, the diameter of the circular groove 7 is 25-30mm, and the depth of the counterweight hole 8 is 6-8mm.

[0014] The working process of this utility model is as follows: When test block A1 with accurately balanced lead weight 9 is used alone, it is the lifting force test block for AC electromagnetic yoke. Test block A1 with accurately balanced lead weight 9 + test block C3 is the lifting force test block required for cross magnetic yoke. Test block A1 with accurately balanced lead weight 9 + test block B2 + test block C3 is the lifting force test block required for DC (including rectified) magnetic yoke or permanent magnetic yoke. It should be noted that designing the test block as a circle is more suitable for lifting force testing in the cross magnetic yoke method (the cross magnetic yoke method has four claws arranged in a square, and using a circular test block can more closely approximate the working condition and better simulate the actual testing situation). When test block A1 and test block C3 need to be combined, first align and insert the insert 41 at one end of the connecting block 4 with the slot 6 on test block A1 (equivalent to the relationship between a key and a keyway, at which point the connecting block 4 is in contact with the inner wall of the circular hole 5). Then align and insert the insert 41 at the other end of the connecting block 4 with the slot 6 on test block C3. When the inserts 41 at both ends of the connecting block 4 are inserted into the slots 6 of test block A1 and test block C3 respectively, and the surfaces of test block A1 and test block C3 are in contact, then rotate the micro-adjustment block A1 and test block C3 so that the insert 41 abuts against the inner wall of the circular groove 7 in test block A1 and test block C3 respectively. This allows the two to rise and fall together during subsequent tests. Similarly, when it is necessary to combine test block A1, test block B2, and test block C3, two connecting blocks 4 are required. One connecting block 4 connects test block A1 and test block C3 so that they can rise and fall together during subsequent tests. The other connecting block 4 connects test block C3 and test block B2. Finally, by finely adjusting the angle of the three test blocks, they can rise and fall together during subsequent tests. In summary, the standard lifting force weight value can be accurately achieved by modularly and quickly combining the three test blocks, which facilitates subsequent lifting force testing of AC electromagnetic yokes, cross magnetic yokes, or DC (including rectified) magnetic yokes (permanent magnetic yokes). This application does not require the installation of weights, and the test blocks can be stably placed on the test table whether used in combination or individually. Moreover, the test blocks can be tightly stacked after combination, which significantly reduces the space occupied compared to hanging, making it easier to carry out the subsequent testing process efficiently.

[0015] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A combined lifting force test block for magnetic particle testing, comprising three test blocks A (1), B (2), and C (3) of different masses, characterized in that, It also includes a connecting block (4), a plug (41), a round hole (5), a slot (6), a round groove (7), a counterweight hole (8), and a lead block (9). Several cylindrical connecting blocks (4) of the same size are symmetrically provided with inserts (41) at both ends, and the connecting blocks (4) and the inserts (41) are integrally formed; Circular holes (5) of equal diameter are respectively opened in the center of test block A (1), test block B (2) and test block C (3), and the circular holes (5) on test block A (1) are blind holes, while the circular holes (5) on test block B (2) and test block C (3) are through holes; The slots (6) that cooperate with the insert (41) and correspond one-to-one are respectively opened on the test block A (1), test block B (2) and test block C (3). The slots (6) on the test block B (2) and test block C (3) are symmetrically distributed on both sides, while the slots (6) on the test block A (1) are distributed on one side. Circular grooves (7) of equal diameter are respectively opened inside test block A (1), test block B (2) and test block C (3), and the circular grooves (7) are connected to the slots (6) and allow the insert (41) to rotate inside them; Counterweight holes (8) of equal diameter are respectively opened on test block A (1), test block B (2) and test block C (3), and the counterweight holes (8) are blind holes; Lead blocks (9) are quantitatively filled and compacted into the counterweight holes (8).

2. The combined lifting force test block for magnetic particle testing according to claim 1, characterized in that, The main body of test block A (1), test block B (2) and test block C (3) are all circular and have a diameter greater than or equal to 210 mm.

3. The combined lifting force test block for magnetic particle testing according to claim 1, characterized in that, The test block A (1) after being filled with lead blocks (9) is the weight of the test block required for the lifting force of the AC electromagnetic yoke. The test block A (1) combined with test block C (3) after being filled with lead blocks (9) is the weight of the test block required for the lifting force of the cross magnetic yoke. The test block A (1) combined with test block B (2) and test block C (3) after being filled with lead blocks (9) is the weight of the test block required for the lifting force of the DC (including rectified) magnetic yoke or permanent magnetic yoke.

4. The combined lifting force test block for magnetic particle testing according to claim 1, characterized in that, The surfaces of the test blocks A (1), B (2) and C (3) or the test blocks A and C are tightly fitted after installation.

5. A combined lifting force test block for magnetic particle testing according to claim 1, characterized in that, The diameter of the circular hole (5) is 20-25mm, the depth of the slot (6) is 10-15mm, the diameter of the circular groove (7) is 25-30mm, and the depth of the counterweight hole (8) is 6-8mm.

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