Solenoid valve electromagnet core force and displacement test board

Abstract

The utility model relates to the technical field of mechanical engineering, in particular to an electromagnetic valve electromagnet core force and displacement test board which comprises a frame, an installation bottom plate is fixedly installed on the top of the frame through bolts, and a high-precision lifting table is fixedly installed on the top of the installation bottom plate and located in the middle. A detection product is tested through cooperation of the positioning structure and the testing structure, a force and displacement curve graph is drawn after related data are automatically collected and stored through the PLC, and meanwhile, a pneumatic push rod is moved downwards by a certain distance, so that the upward moving distance of the high-precision lifting table is reduced, and the situation that the testing efficiency is reduced due to too slow movement of the high-precision lifting table is prevented; and the pneumatic push rod is kept still after moving downwards to a specified position, so that the pneumatic push rod only has an effect of limiting upward movement of the semicircular placement plate, the condition that the pneumatic push rod retracts and moves is prevented, and the overall stability of the test board and the test accuracy of a detected product are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical engineering, in particular to a solenoid valve electromagnetic iron core force and displacement test bench. Background Art

[0002] The solenoid core force of the solenoid valve is a key mechanical parameter in the working process of the solenoid valve. It determines the opening and closing ability of the solenoid valve. When the electromagnet is energized, a magnetic field is generated in the coil. The magnetic field acts on the iron core, causing the iron core to be attracted (or thrust). The size of this force is related to factors such as current intensity, number of coil turns, iron core material and shape. The size of the electromagnet core force directly affects the performance of the solenoid valve. Therefore, the size of the electromagnet core force needs to be tested before the solenoid valve is used.

[0003] When using a test bench to evaluate the performance of an electromagnet, most existing test benches use a cylinder as a clamping limit device. However, when the pressure reaches a specific range, the cylinder will retract and move, which seriously affects the stability of the test and the accuracy of subsequent measurement data. Therefore, it is necessary to design a test bench with high stability during testing. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides the following technical solutions: an electromagnetic valve electromagnet core force and displacement test bench, comprising a frame, a mounting base plate is fixedly installed on the top of the frame by bolts, a high-precision lifting platform is fixedly installed on the top of the mounting base plate and in the middle position, a positioning structure is provided on the top of the mounting base plate and at a position close to the high-precision lifting platform, and a test structure is provided on the top of the high-precision lifting platform.

[0005] As an improvement of the above technical solution, the positioning structure includes a fixing rod, which is fixedly installed on the top of the mounting base plate and located near the high-precision lifting platform, a mounting vertical plate is fixedly installed on the outer side of the fixing rod, a limiting plate is fixedly installed on the front side of the mounting vertical plate and located near the bottom, a fixed cylinder is fixedly installed on the front side of the mounting vertical plate and located near the top, a pneumatic push rod is provided at the bottom end of the fixed cylinder, a grating displacement scale is fixedly provided on the front side of the mounting vertical plate and located on the right side of the fixed cylinder, and the semicircular placement plate during testing is positioned and fixed through the cooperation between the positioning structures.

[0006] As an improvement of the above technical solution, the test structure includes a weighing sensor, which is fixedly installed on the top of a high-precision lifting platform. The position of the center of the limiting plate is movably clamped with a movable sleeve, and a semicircular placing plate is fixedly installed on the top of the movable sleeve. A test push rod is fixedly installed on the top of the weighing sensor, and the test push rod extends into the interior of the movable sleeve. A placement slot is provided on the left side of the semicircular placing plate, and the placement slot is connected to the interior of the movable sleeve. A test product is placed in the placement slot, and the test product is stably tested through the cooperation between the test structures.

[0007] As an improvement of the above technical solution, the left end of the grating displacement ruler is located on the left side of the center of the limiting plate, and the grating displacement ruler is movably connected to the limiting plate, so that the grating displacement ruler can test the inspection product.

[0008] As an improvement of the above technical solution, the test push rod and the placement slot have the same center, so that the test push rod can push the test product when it moves upward.

[0009] The beneficial effects of the utility model are as follows: the detection product is tested through the cooperation of the positioning structure and the test structure, and the force and displacement curve diagram is drawn after the relevant data is automatically collected and stored by PLC. At the same time, the pneumatic push rod is first moved downward by a certain distance, thereby reducing the upward movement distance of the high-precision lifting platform, preventing the high-precision lifting platform from moving too slowly and reducing the test efficiency, and when the pneumatic push rod moves downward to the specified position, it remains stationary, so that the pneumatic push rod only has the effect of limiting the upward movement of the semicircular placement plate, thereby preventing the pneumatic push rod from retracting and moving, thereby improving the overall stability of the test bench and the accuracy of the test of the detection product. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is the main view of the vertical state test of the test bench of the utility model;

[0011] Figure 2 This is the main view of the horizontal state test of the test bench of the utility model;

[0012] Figure 3 For this utility model Figure 1 A magnified view of the structure at center;

[0013] Figure 4 For this utility model Figure 3 Enlarged view of the structure at point B in the middle.

[0014] Figure numerals: 1. Frame; 2. Mounting base plate; 3. High-precision lifting platform; 4. Fixing rod; 41. Mounting vertical plate; 42. Fixing cylinder; 43. Pneumatic push rod; 44. Grating displacement scale; 5. Weighing sensor; 51. Movable sleeve; 52. Semicircular placement plate; 53. Test push rod; 54. Placement slot; 55. Product inspection. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0016] Reference Figure 1 ,exist Figure 1 In the figure, a points to the front view, and b points to the right view. The above views are only used to understand the plan.

[0017] See also Figure 1-4 The utility model provides a technical solution: an electromagnetic valve electromagnet core force and displacement test bench, comprising a frame 1, a mounting base plate 2 is fixedly installed on the top of the frame 1 by bolts, a high-precision lifting platform 3 is fixedly installed on the top of the mounting base plate 2 and in the middle position, a positioning structure is arranged on the top of the mounting base plate 2 and close to the high-precision lifting platform 3, and a test structure is arranged on the top of the high-precision lifting platform 3.

[0018] Specifically, the positioning structure includes a fixed rod 4, which is fixedly installed on the top of the mounting base plate 2 and is located near the high-precision lifting platform 3. A mounting vertical plate 41 is fixedly installed on the outer side of the fixed rod 4, a limiting plate is fixedly installed on the front side of the mounting vertical plate 41 and is located near the bottom, a fixed cylinder 42 is fixedly installed on the front side of the mounting vertical plate 41 and is located near the top, a pneumatic push rod 43 is provided at the bottom end of the fixed cylinder 42, and a grating displacement scale 44 is fixedly installed on the front side of the mounting vertical plate 41 and is located on the right side of the fixed cylinder 42.

[0019] In this embodiment, the semicircular placement plate 52 is positioned and fixed during testing through the cooperation between the positioning structures.

[0020] Specifically, the test structure includes a weighing sensor 5, which is fixedly installed on the top of the high-precision lifting platform 3. A movable sleeve 51 is movably connected to the position of the center of the limiting plate. A semicircular placing plate 52 is fixedly installed on the top of the movable sleeve 51. A test push rod 53 is fixedly installed on the top of the weighing sensor 5. The test push rod 53 extends into the interior of the movable sleeve 51. A placing slot 54 is opened on the left side of the semicircular placing plate 52. The placing slot 54 is connected to the interior of the movable sleeve 51, and a test product 55 is placed inside the placing slot 54.

[0021] In this embodiment, the test product 55 is stably tested through the cooperation between the test structures.

[0022] Specifically, the left end of the grating displacement ruler 44 is located on the left side of the center of the limiting plate, and the grating displacement ruler 44 is movably engaged with the limiting plate.

[0023] In this embodiment, the grating displacement ruler 44 is convenient for testing the inspection product 55 .

[0024] Specifically, the test push rod 53 and the placement slot 54 have the same center.

[0025] In this embodiment, the test push rod 53 is able to push the test product 55 when it moves upward.

[0026] When in use, the test product 55 is placed in the placement slot 54, the weighing sensor 5 weighs the test product 55, and the pneumatic push rod 43 is driven by the fixed cylinder 42 to move downward to the limit position to wait, and the high-precision lifting platform 3 is started. The high-precision lifting platform 3 drives the test push rod 53 to move upward through the weighing sensor 5. When the test push rod 53 moves upward, it contacts the test product 55 and drives the test product 55 to move upward. The test product 55 drives the semicircular placement plate 52 and the movable sleeve 51 to move upward synchronously through the placement slot 54. When the semicircular placement plate 52 moves upward to contact with the pneumatic push rod 43, the test push rod 53 and the grating displacement ruler 44 are cleared at this time, and then the test push rod 53 pushes the test product 55 upward to be used under the restriction of the pneumatic push rod 43. The test product 55 is deformed, and the relevant data is automatically collected and stored through the grating displacement ruler 44 and the test push rod 53 to draw a force and displacement curve diagram. The pneumatic push rod 43 is first moved downward by a certain distance to shorten the distance between the semicircular placement plate 52 and the pneumatic push rod 43, thereby reducing the upward movement distance of the high-precision lifting platform 3 to prevent the high-precision lifting platform 3 from moving too slowly and reducing the test efficiency. Moreover, when the pneumatic push rod 43 moves downward to the specified position, it remains stationary, so that the pneumatic push rod 43 only has the effect of limiting the upward movement of the semicircular placement plate 52, thereby preventing the pneumatic push rod 43 from retracting. Similarly, the working principle of the horizontal test of the test bench is the same as above, thereby improving the overall stability of the test bench and the accuracy of the test of the test product 55.

[0027] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A solenoid valve solenoid core force and displacement test bench, comprising a frame (1), characterized in that: A mounting base plate (2) is fixedly mounted on the top of the frame (1) by means of bolts, a high-precision lifting platform (3) is fixedly mounted on the top of the mounting base plate (2) and in the middle, a positioning structure is provided on the top of the mounting base plate (2) and in a position close to the high-precision lifting platform (3), and a test structure is provided on the top of the high-precision lifting platform (3).

2. The electromagnetic valve solenoid core force and displacement test bench according to claim 1, characterized in that: The positioning structure comprises a fixing rod (4), wherein the fixing rod (4) is fixedly mounted on the top of the mounting base plate (2) and is located near the high-precision lifting platform (3); a fixing vertical plate (41) is fixedly mounted on the outer side of the fixing rod (4); a limiting plate is fixedly mounted on the front side of the fixing vertical plate (41) and is located near the bottom; a fixing cylinder (42) is fixedly mounted on the front side of the fixing vertical plate (41) and is located near the top; a pneumatic push rod (43) is arranged at the bottom end of the fixing cylinder (42); and a grating displacement ruler (44) is fixedly mounted on the front side of the fixing vertical plate (41) and is located on the right side of the fixing cylinder (42).

3. The electromagnetic valve solenoid core force and displacement test bench according to claim 1, characterized in that: The test structure comprises a weighing sensor (5), the weighing sensor (5) is fixedly mounted on the top of the high-precision lifting platform (3), a movable sleeve (51) is movably connected to the position of the center of the limiting plate, a semicircular placement plate (52) is fixedly mounted on the top of the movable sleeve (51), a test push rod (53) is fixedly mounted on the top of the weighing sensor (5), the test push rod (53) extends into the interior of the movable sleeve (51), a placement slot (54) is provided on the left side of the semicircular placement plate (52), the placement slot (54) is communicated with the interior of the movable sleeve (51), and a test product (55) is placed inside the placement slot (54).

4. The electromagnetic valve solenoid core force and displacement test bench according to claim 2, characterized in that: The left end of the grating displacement ruler (44) is located on the left side of the center of the limiting plate, and the grating displacement ruler (44) is movably engaged with the limiting plate.

5. The electromagnetic valve solenoid core force and displacement test bench according to claim 3, characterized in that: The testing push rod (53) and the placement slot (54) have the same center.

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