Electromagnet output measuring device and measuring method thereof

Abstract

The present application relates to the technical field of aircraft electromagnetic valve repair process, and particularly relates to an electromagnet output measuring device and a measuring method thereof, the device comprises a base for supporting, a fixed platform for supporting product installation which is threadedly connected with the base through a fixing nut, and further comprises: a fixing assembly arranged on the base and used for fixing the electromagnet; and a measuring assembly matched with the sliding assembly and used for measuring the actual output of the electromagnet, and the specific steps are as follows: S001, device pre-adjustment; S002, product preparation; S003, product fixing; S004, installation of a dial gauge; S005, adjustment of a measuring point; S006, energization and reading of displacement; S007, load application; S008, output force conversion: according to the differences of different electromagnet housings, the measuring height of the dial gauge is adjusted through adjustment screw one, adjustment screw two, the fixed platform and the fixing nut, and the device has a certain universality.

Description

Technical Field

[0001] This invention relates to the field of aircraft solenoid valve repair technology, specifically to an electromagnet output measuring device and its measuring method. Background Technology

[0002] Servo solenoid valves are crucial components in aircraft control systems, controlling the pressure supply to various hydraulic actuators by switching on and off electromagnet coils. These electromagnet components are key to converting electrical signals into mechanical signals in solenoid valves; their output force and displacement directly affect the valve's on / off function. Therefore, the output force and displacement of the electromagnet are parameters that must be carefully checked and adjusted before assembly, and the accuracy, efficiency, and convenience of their measurement are extremely important.

[0003] After the solenoid valve is disassembled and repaired, the output force and displacement of the electromagnet must be checked according to the repair process requirements. When the electromagnet is energized, the armature moves under electromagnetic action, thereby outputting a certain force and displacement. However, since the armature moves within the solenoid valve cavity, and there is electromagnetic force acting within the cavity, the output force and displacement of the armature cannot be directly measured. Therefore, considering the product's structural characteristics and measurement safety, an electromagnet output measurement device is designed to facilitate detection, inspection, and adjustment.

[0004] For example, in the hydraulic solenoid valve electromagnet stroke detection device and its detection method with Chinese patent application number 202010916367.3, there are positioning sleeves for sequentially installing steel ball one, valve seat, steel ball push rod, steel ball two, and guide seat; a clamp for installing the positioning sleeve; a bushing for sequentially installing armature, stop block, and armature push rod; a sleeve for installing the bushing; a pin bolt set at the end of the sleeve away from the bushing; and a pin set at the center of the pin bolt for pushing steel ball one in the valve seat. Using the reverse pushing method, the flush state is considered as the energized state, and then the bolt pushes the pin to move to the initial state. This stroke is considered as the output displacement. However, there is still a certain error in the actual output after energization, and the accuracy is not high. Summary of the Invention

[0005] To address the aforementioned problems, this invention proposes an electromagnet output measuring device and its measuring method.

[0006] An electromagnet output measuring device includes a base for support, a fixed platform for supporting product installation and threadedly connected to the base via a fixing nut, and further includes:

[0007] A fixing component, mounted on the base, is used to fix the electromagnet;

[0008] The measuring component, in conjunction with the sliding component, is used to measure the actual output of the electromagnet;

[0009] The fixing assembly includes a support rod that is fixedly connected to the base by threads, a fixing screw and a slider that cooperates with the support rod, and a fixing bracket that is fixedly connected to the base by threads.

[0010] The measuring assembly includes a weight, a weight support for supporting the weight, a movable support connected to the weight support by a pin, a rotating clamping component connected to the screw of the fixed platform by a thread, a clamping component that works with the fixed platform to fix the electromagnet housing to the fixed platform, and an adjusting screw that engages with the movable support by a thread.

[0011] The slider rotates around the support rod to adjust the measuring position of the dial indicator, and the fixing screw is tightened to fix the dial indicator to the support rod.

[0012] The fixed bracket is used to fix and support the movable bracket.

[0013] The clamping component has a through hole in the center and four corners that fit together to form grooves that allow the electromagnet housing to be screwed in at dead angles.

[0014] The movable bracket has a threaded hole at the middle position that mates with the second adjusting screw, for applying load to the product measurement point.

[0015] The adjusting screw applies a load while transmitting the output displacement, enabling fine-tuning of the measurement point position.

[0016] A measurement method for an electromagnet output measuring device, the specific steps of which are as follows:

[0017] S001. Device pre-adjustment: Loosen the fixing nut, rotate and adjust the height of the fixing platform according to the actual height of the electromagnet, and tighten the fixing nut to lock the fixing platform and the base in a fixed connection.

[0018] S002. Product preparation: Assemble the limiting block, armature, and push rod without assembling the external rubber ring; do not assemble the spring.

[0019] S003. Product fixing: Rotate the rotating clamping part upward until the upper surface abuts against the fixed platform. Insert the square corner of the electromagnet sleeve into the grooves at the four corners of the clamping part. Rotate the rotating clamping part downward until it is tightened. At this time, the product is rigidly connected to the fixed platform.

[0020] S004. Install the dial indicator: By adjusting screw two and the slider, select an appropriate height to fix the measuring dial indicator on the support rod, and zero the dial indicator;

[0021] S005. Adjust the measuring point: Fine-tune the position of the measuring point by rotating the second adjusting screw to ensure that the lower end of the adjusting screw contacts the upper surface of the push rod and the upper end contacts the lower part of the dial indicator push rod during the displacement process, so as to prevent errors caused by improper position.

[0022] S006. Power on and read the displacement: Input 0.17A current into the electromagnet coil, read the displacement of the armature through the dial indicator, check the adjustment screw two, the lower end should be in contact with the upper surface of the push rod, and the upper end should be in contact with the bottom of the dial indicator push rod;

[0023] S007. Apply load: Based on the dial gauge displacement data, add weights to the weight holder until the dial gauge displacement data becomes 0.3mm, and read the mass of the weights at this time.

[0024] S008, Output Force Conversion: After reading the mass of the weight, the force exerted by the weight on the armature at this time is calculated based on the measurement point and the loading position. The force is twice the mass of the weight, thus converting it into the output force of the electromagnet.

[0025] The beneficial effects of this invention are: based on the differences in different electromagnet housings, the dial indicator measurement height can be adjusted by adjusting screw one, adjusting screw two, fixing platform, and fixing nut, thus possessing a certain degree of versatility; the parts used to transmit the armature output force and displacement to the measurable surface are all original components, and the actual working state of the product is simulated, so the test results are close to the actual working state of the product. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0028] Figure 2 This is a top view of the structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the electromagnet structure of the present invention;

[0030] Figure 4 This is a side view of the electromagnet structure of the present invention;

[0031] Figure 5 This is a schematic diagram of the fixed component structure of the present invention;

[0032] Figure 6 This is a schematic diagram of the assembly main structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the fixed assembly main structure of the present invention;

[0034] Figure 8 This is a schematic cross-sectional view of the fixed assembly structure of the present invention;

[0035] Figure 9 This is a schematic diagram of the process of the present invention. Detailed Implementation

[0036] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below.

[0037] like Figures 1 to 9 As shown, an electromagnet output measuring device includes a base 9 for support, a fixed platform 6 for supporting product installation and threadedly connected to the base 9 via a fixing nut 7, and further includes:

[0038] A fixing component, mounted on the base 9, is used to fix the electromagnet;

[0039] The measuring component, in conjunction with the sliding component, is used to measure the actual output of the electromagnet;

[0040] The fixing assembly includes a support rod 1 that is fixedly connected to the base 9 by threads, a fixing screw 3 and a sliding block 2 that are fitted on the support rod 1, and a fixing bracket 4 that is fixedly connected to the base 9 by threads.

[0041] The measuring assembly includes a weight 10, a weight support 11 for supporting the weight 10, a movable support 13 connected to the weight support 11 by a pin 12, a rotating clamping member 8 connected to the screw of the fixed platform 6 by a thread, a clamping member 5 that cooperates with the fixed platform 6 to fix the electromagnet housing on the fixed platform 6, and an adjusting screw 14 that is threadedly engaged with the movable support 13.

[0042] like Figure 6 , Figure 7 , Figure 8 As shown in the figure, a is an electromagnet and b is a dial indicator.

[0043] Specifically, after the electromagnet is repaired, when a current of 0.17A is supplied to the coil assembly, the armature stroke should be within the range of 0.5 + 0.27mm. When the electromagnet's operating current is 0.17A and the stroke is 0.3mm, the electromagnet's thrust should be greater than 35N, that is, the armature output force should be greater than 35N.

[0044] The slider 2 rotates around the support rod 1 to adjust the measuring position of the dial indicator, and the fixing screw 3 is tightened to fix the dial indicator to the support rod 1.

[0045] Specifically, data can be read directly through the readable weight 10, while reducing the number of weights 10 required for conversion.

[0046] The fixed bracket 4 is used to fix and support the movable bracket 13.

[0047] Specifically, the electromagnet is relatively light during actual measurement, so it needs to be fixed in place to facilitate measurement. At the same time, the support rod 1 is designed to be connected to the fixed bracket 4, thereby reducing the error generated during the displacement measurement process.

[0048] Specifically, since the displacement of armature 17 must meet the requirements while measuring its output force, a movable bracket 13 and an adjusting screw 14 are designed to extend the displacement of armature 17 and convert the armature output force. Since the armature output force is large, the corresponding weights 10 are accumulated in large quantities, resulting in poor operational stability and safety. Therefore, a lever structure is designed to reduce the number of weights 10.

[0049] The clamping member 5 has a through hole in the center and four corners that fit together to form grooves that allow the electromagnet housing to be screwed in at dead angles.

[0050] Specifically, the upper platform and the upper platform of the fixed platform 6 are together inserted into the groove of the clamping member 5, and are connected to the screw of the fixed platform 6 by threads. Rotating the lower cylinder causes the rotating clamping member 8 to move downward along the screw of the fixed platform 6. The upper surface of the rotating clamping member 8 then drives the clamping member 5 to move downward. At this time, the upper half of the groove of the clamping member 5 and the upper platform of the fixed platform 6 together press against the four corners of the electromagnet housing to ensure the product is fixed.

[0051] The movable bracket 13 has a threaded hole at the middle position that mates with the adjusting screw 14, for applying load to the product measurement point.

[0052] The adjusting screw 14 applies a load and transmits the output displacement simultaneously, enabling fine adjustment of the measurement point position.

[0053] Specifically, based on the differences in the housings of different electromagnets, the measuring height of the dial indicator is adjusted by adjusting screw 13, adjusting screw 214, fixing platform 6, and fixing nut 7, which has a certain degree of versatility; the parts used to transmit the output force and displacement of armature 17 to the measurable surface are all original parts and components, and the actual working state of the product is simulated, so the test results are close to the actual working state of the product.

[0054] A measurement method for an electromagnet output measuring device, the specific steps of which are as follows:

[0055] S001. Device pre-adjustment: Loosen the fixing nut 7, rotate and adjust the height of the fixing platform 6 according to the actual height of the electromagnet, and tighten the fixing nut 7 to lock the fixing platform 6 and the base 9 into a fixed connection.

[0056] S002. Product Preparation: Without assembling the external rubber ring, install the limiting block 15, armature 17, and push rod 20 as follows: Figure 5 As shown in the diagram, but do not assemble spring 21;

[0057] S003. Product Fixing: Rotate the rotating clamping part 8 upwards until its upper surface abuts against the fixing platform 6. Insert the square corner of the electromagnet sleeve into the grooves at the four corners of the clamping part 5. Rotate the rotating clamping part 8 downwards until tightened. At this point, the product is rigidly connected to the fixing platform 6. Figure 6 As shown;

[0058] S004. Install the dial indicator: By adjusting screw 14 and slider 2, select an appropriate height to fix the measuring dial indicator on the support rod 1, and zero the dial indicator.

[0059] S005. Adjust the measuring point: By rotating the adjusting screw 14, fine-tune the position of the measuring point to ensure that during the displacement of the adjusting screw 14, the lower end point contacts the upper surface of the push rod 20, and the upper end face contacts the lower part of the dial indicator push rod, to prevent errors caused by improper position.

[0060] S006. Power on and read the displacement: Input a current of 0.17A into the electromagnet coil, read the displacement of armature 17 through a dial indicator, check that the lower end of adjusting screw 14 should be in contact with the upper surface of push rod 20, and the upper end should be in contact with the lower part of the dial indicator push rod.

[0061] S007. Apply load: According to the dial gauge displacement data, add weight 10 to the weight holder 11 until the dial gauge displacement data becomes 0.3mm, and read the mass of weight 10 at this time.

[0062] S008, Output Force Conversion: After reading the mass of the weight 10, the force exerted by the weight 10 on the armature 17 at this time is calculated based on the measurement point and the loading position. It is twice the mass of the weight, thus converting the output force of the electromagnet.

[0063] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely prisms of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A measurement method for an electromagnet output measuring device, wherein the electromagnet output measuring device includes a base (9) for support and a fixed platform (6) for supporting product installation, which is threadedly connected to the base (9) via a fixing nut (7), characterized in that: Also includes: A fixing component is provided on the base (9) for fixing the electromagnet; The measuring component, in conjunction with the sliding component, is used to measure the actual output of the electromagnet; The fixing components include a support rod (1) that is fixedly connected to the base (9) by threads, a fixing screw (3) and a sliding block (2) that are fitted on the support rod (1), and a fixing bracket (4) that is fixedly connected to the base (9) by threads. The measuring components include a weight (10), a weight bracket (11) for supporting the weight (10), a movable bracket (13) connected to the weight bracket (11) by a pin (12), a rotating clamping member (8) connected to the screw of the fixed platform (6) by a thread, a clamping member (5) that cooperates with the fixed platform (6) to fix the electromagnet shell on the fixed platform (6), and an adjusting screw (14) that is threadedly engaged with the movable bracket (13). Its features are as follows: S001, Device pre-adjustment: Loosen the fixing nut (7), rotate and adjust the height of the fixing platform (6) according to the actual height of the electromagnet, tighten the fixing nut (7) to lock the fixing platform (6) and the base (9) in a fixed connection; S002, Product preparation: Without assembling the external rubber ring, assemble the limiting block (15), armature (17), and push rod (20), and do not assemble the spring (21). S003, Product fixing: Rotate the rotating clamping part (8) upward until the upper surface abuts against the fixed platform (6), insert the square corner of the electromagnet jacket into the grooves of the four corners of the clamping part (5), and rotate the rotating clamping part (8) downward until tightened. At this time, the product is rigidly connected to the fixed platform (6). S004. Install the dial indicator: By adjusting screw two (14) and slider (2), select an appropriate height to fix the measuring dial indicator on the support rod (1) and zero the dial indicator; S005. Adjust the measuring point: By rotating the second adjusting screw (14), fine-tune the position of the measuring point to ensure that during the displacement of the second adjusting screw (14), the lower end point contacts the upper surface of the push rod (20) and the upper end surface contacts the lower part of the dial indicator push rod, so as to prevent errors caused by improper position. S006. Power on and read displacement: Input 0.17A current into the electromagnet coil, read the displacement of the armature (17) through the dial indicator, check the adjustment screw two (14), the lower end should be in contact with the upper surface of the push rod (20), and the upper end should be in contact with the lower part of the dial indicator push rod. S007. Apply load: According to the dial gauge displacement data, add weights (10) to the weight holder (11) until the dial gauge displacement data becomes 0.3mm, and read the mass of the weights (10) at this time. S008, Output force conversion: After reading the mass of the weight (10), calculate the force exerted by the weight (10) on the armature (17) at this time according to the measurement point and the loading position. It is twice the mass of the weight, so the output force of the electromagnet is converted.

2. The measurement method of the electromagnet output measuring device according to claim 1, characterized in that: The slider (2) rotates around the support rod (1) to adjust the measuring position of the dial indicator, and the fixing screw (3) is tightened to fix the dial indicator to the support rod (1).

3. The measurement method of the electromagnet output measuring device according to claim 1, characterized in that: The fixed bracket (4) is used to fix and support the movable bracket (13).

4. The measurement method of the electromagnet output measuring device according to claim 1, characterized in that: The clamping member (5) has a through hole in the center and four corners that fit together to form a groove that makes it easy for the electromagnet housing to be screwed into the dead corner.

5. The measurement method of the electromagnet output measuring device according to claim 1, characterized in that: The movable bracket (13) has a threaded hole at the middle position that mates with the adjusting screw (14) for applying load to the product measurement point.

6. The measurement method of the electromagnet output measuring device according to claim 1, characterized in that: The second adjusting screw (14) applies a load and transmits the output displacement, which can finely adjust the position of the measuring point.

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