A detection tool for an air conditioner compressor valve plate

Abstract

The utility model discloses a kind of detection tool of air conditioner compressor valve sheet, it is related to compressor valve sheet technical field, including detection table, the vertical fixed round bar of detection table top center place, round bar and the center hole of air conditioner compressor valve sheet are matched, detachable auxiliary plate is installed on the upper end of round bar, square slot is opened in the upper end of round bar, clamping block is fixed in the bottom of auxiliary plate, clamping block and square slot are matched, plug-in structure for dropping tube to drop refrigerating machine oil to the surface of air conditioner compressor valve sheet is slidably installed on auxiliary plate.The utility model is guided to the drop tube by the guiding effect of jack and the sliding adjustment of sliding block and sliding slot, oil drop point position deviation is very small, the oiliness detection of different positions on the surface of air conditioner compressor valve sheet can be realized, and oil drop height is consistent, eliminate oil drop initial kinetic energy difference, transparent round plate and scale concentric circle can directly read oil drop diffusion diameter, without additional measuring tool, single piece detection time consumption is shortened, and detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of compressor valve plate technology, specifically to a testing fixture for air conditioning compressor valve plates. Background Technology

[0002] The valve plate of an air conditioner compressor is a core component that controls the entry and exit of refrigerant into and out of the cylinder. Its surface oleophobicity directly affects the operating efficiency and service life of the compressor. Therefore, the valve plate must be tested for oleophobicity before leaving the factory.

[0003] In existing technologies, oleophobicity testing often involves manually applying 0.05 mL of refrigeration oil to multiple points on the valve plate surface using a handheld dropper. The performance is judged by observing the diffusion of the oil droplets within 10 seconds. The industry-standard qualification is "oil droplet diffusion diameter ≥ 5 mm with no obvious edge shrinkage". This method lacks auxiliary structures, the dropper is prone to shaking when manually dripping oil, resulting in deviations in the oil droplet position, and inconsistent droplet heights can cause differences in the initial kinetic energy of the oil droplets, affecting the test results. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a testing fixture for air conditioning compressor valve plates, solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A testing fixture for an air conditioner compressor valve includes a testing platform. A round rod is vertically fixed at the center of the top of the testing platform. The round rod matches the center hole of the air conditioner compressor valve. A detachable auxiliary plate is installed at the upper end of the round rod. A plug-in structure for dripping refrigerant oil onto the surface of the air conditioner compressor valve is slidably installed on the auxiliary plate.

[0006] To enable the auxiliary plate to be detachable, a square groove is provided at the upper end of the round rod, and a locking block is fixed at the bottom of the auxiliary plate, the locking block matching the square groove.

[0007] Furthermore, the insertion structure includes a transparent circular plate that is slidably installed in a long groove, with an insertion hole for inserting a dropper at the center of the top of the circular plate.

[0008] To enable the circular plate to slide, the top of the auxiliary plate is provided with a long groove, the plug-in structure is slidably installed in the long groove, and sliding grooves are provided on both side walls of the long groove. The sliding grooves are long and narrow, and two symmetrically arranged sliders are fixed at the edge of the circular plate. The sliders are slidably installed in the sliding grooves.

[0009] Compared with the prior art, this utility model has the following advantages: with the guidance of the dropper by the insertion hole and the sliding adjustment of the slider and the groove, the position deviation of the oil drop point is very small, which can realize the oleophobicity detection of different positions on the surface of the air conditioner compressor valve plate, and the oil drop height is consistent, eliminating the difference in the initial kinetic energy of the oil drop. The transparent circular plate and the concentric circle of the scale can directly read the diffusion diameter of the oil drop, without the need for additional measuring tools, shortening the detection time of a single piece and improving the detection efficiency. Attached Figure Description

[0010] Figure 1 This is a perspective view of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a partial sectional view of the main view of this utility model; Figure 4 This is a partial perspective view of the present invention; Figure 5 This is a top view of the auxiliary plate of this utility model.

[0011] Reference numerals: 1. Testing platform; 2. Round rod; 2-1. Square groove; 3. Auxiliary plate; 3-1. Long groove; 3-2. Sliding groove; 4. Locking block; 5. Round plate; 5-1. Insertion hole; 6. Sliding block; X. Air conditioning compressor valve plate. Detailed Implementation

[0012] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example

[0013] A testing fixture for an air conditioner compressor valve plate includes a testing platform 1. A round rod 2 is vertically fixed at the center of the top of the testing platform 1. The round rod 2 matches the center hole of the air conditioner compressor valve plate X. The diameter of the round rod 2 matches the center hole of the air conditioner compressor valve plate X, which takes into account both quick disassembly and assembly of the air conditioner compressor valve plate X and radial positioning stability. The center hole of the air conditioner compressor valve plate X to be tested is aligned with the round rod 2 and vertically downwards is fitted until the lower surface of the air conditioner compressor valve plate X is completely in contact with the top surface of the testing platform 1. A detachable auxiliary plate 3 is installed at the upper end of the round rod 2. The auxiliary plate 3 is made of acrylic material and has a sliding insertion structure for dripping refrigerant oil onto the surface of the air conditioner compressor valve plate X using a drip tube. Example

[0014] Based on Embodiment 1, in order to make the auxiliary plate 3 detachable, a square groove 2-1 is provided at the upper end of the round rod 2, and a locking block 4 is fixed at the bottom of the auxiliary plate 3. The locking block 4 is made of polyoxymethylene (POM) material, which has excellent wear resistance, oil resistance and dimensional stability. The locking block 4 matches the square groove 2-1. The round rod 2 is made of stainless steel material, which has excellent corrosion resistance and mechanical strength. The auxiliary plate 3 is detachably connected to the square groove 2-1 through the locking block 4. The auxiliary plate 3 can be directly disassembled to replace the new air conditioning compressor valve plate X. Example

[0015] Based on Embodiment 1, the insertion structure includes a transparent circular plate 5. The circular plate 5 is made of high borosilicate glass. The circular plate 5 can be made of glass or plastic. Multiple concentric circles of different sizes and concentric with the insertion hole 5-1 can be designed on the upper surface of the circular plate 5. The distance between two adjacent concentric circles is one millimeter. The circular plate 5 is slidably installed in the long groove 3-1. An insertion hole 5-1 for inserting a dropper is opened at the center of the top of the circular plate 5. The diameter of the insertion hole 5-1 matches that of a standard glass dropper to limit the shaking of the dropper.

[0016] In order to enable the circular plate 5 to slide, the top of the auxiliary plate 3 is provided with a long groove 3-1, and the plug-in structure is slidably installed in the long groove 3-1. The two side walls of the long groove 3-1 are provided with sliding grooves 3-2. The sliding grooves 3-2 are long strips. Two symmetrically arranged sliders 6 are fixed at the edge of the circular plate 5. The sliders 6 are made of POM material and are slidably installed in the sliding grooves 3-2.

[0017] The working principle is as follows: Take a 1mL standard glass dropper, draw up some refrigeration oil, gently squeeze the rubber head to expel air bubbles from the dropper, ensuring accurate oil dripping. Insert the dropper vertically into the socket 5-1 of the circular plate 5 until the bottom of the dropper is in contact with the bottom of the socket 5-1. At this time, slowly press the rubber head of the dropper to add 0.05mL of refrigeration oil, ensuring that the oil drop falls vertically to the target detection point on the surface of the air conditioning compressor valve plate X. After the oil dripping is completed, immediately start the stopwatch and observe the oil drop diffusion process through the transparent circular plate 5. When the timer reaches 10 seconds, read the value of the concentric circle corresponding to the edge of the oil drop and record the diffusion diameter. Following the above steps, push the circular plate 5 to slide, and complete the oil dripping and reading at the three detection points of the air conditioning compressor valve plate X in sequence. If the oil drop diffusion diameter at all three detection points is ≥5mm and there is no obvious shrinkage at the edge, the air conditioning compressor valve plate X is judged to be qualified in terms of oleophobicity. If any detection point does not meet the above conditions, it is judged to be unqualified, and the location of the unqualified point and the specific diffusion diameter data are recorded.

[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air conditioner compressor valve plate detection tool, characterized in that: The test platform (1) includes a test stand (1), a round rod (2) is vertically fixed at the center of the top of the test stand (1), the round rod (2) matches the center hole of the air conditioner compressor valve plate (X), a detachable auxiliary plate (3) is installed on the upper end of the round rod (2), and a plug-in structure for dripping refrigeration oil onto the surface of the air conditioner compressor valve plate (X) is slidably installed on the auxiliary plate (3).

2. The detection tool for a valve plate of an air conditioner compressor according to claim 1, characterized in that: The upper end of the round rod (2) is provided with a square groove (2-1), and a locking block (4) is fixed at the bottom of the auxiliary plate (3), which matches the square groove (2-1).

3. The detection tool for a valve plate of an air conditioner compressor according to claim 2, characterized in that: The auxiliary plate (3) has a long groove (3-1) on its top, and the plug-in structure is slidably installed in the long groove (3-1).

4. The detection tool for a valve plate of an air conditioner compressor according to claim 3, wherein: The insertion structure includes a transparent circular plate (5), which is slidably installed in a long groove (3-1). A hole (5-1) for inserting a dropper is provided at the center of the top of the circular plate (5).

5. The detection tool for a valve plate of an air conditioner compressor according to claim 4, wherein: The long groove (3-1) has two side walls with sliding grooves (3-2). The sliding grooves (3-2) are long strips. Two symmetrically arranged sliders (6) are fixed at the edge of the circular plate (5). The sliders (6) are slidably installed in the sliding grooves (3-2).

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