Device for detecting oil content of sintered product

Abstract

The utility model discloses a sintered product oil content detection device which comprises an extractor and a circulating water system connected with the extractor, and the circulating water system comprises a water tank and a circulating water pipe connected between the water tank and the extractor; the circulating water pipe is provided with an alarm, the bottom of the extractor is provided with a heat source, and the alarm and the heat source are connected with a power supply. The liquid flow break alarm is arranged on the circulating water pipe and is used for detecting cooling circulating water, and meanwhile, the time relay and the timer socket are arranged, so that a timed test can be carried out; an alarm can be given when water is cut off in the test process; when an accidental power-off test stops, timing can be carried out through the time relay, the test does not need to be started from the beginning, the test efficiency is improved, personnel do not need to take care of the test continuously, and the test safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of powder metallurgy sintered material detection, in particular to a device for detecting the oil content of sintered products. Background Art

[0002] Powder metallurgy sintered materials are suitable for producing large quantities of products of the same shape, especially for mass production. They have been widely used in a variety of fields, including transportation machinery, agricultural machinery, and textile machinery. Because powder metallurgy sintered materials have internal pores, they exhibit excellent tribological properties after oil immersion. Therefore, iron- and copper-based sintered materials are often used as anti-friction materials, such as powder metallurgy bearings.

[0003] GB / T 2688-2012 "Technical conditions for sliding bearings and powder metallurgy bearings" Article 4.3.3 stipulates that at least two samples of each batch of bearing products should be taken at random, and after degreasing, a sample of no less than 50g should be obtained, and the chemical composition should be analyzed according to the provisions of Table 2. Some literature points out (Li Qilong, Zhang Yuxiang. Research on the standard of GB / T 2688-2012 "Technical conditions for sliding bearings and powder metallurgy bearings" [J]. China Standardization, 2023 (23): 175-178) that if the degreasing method is not used properly, it may affect the chemical composition of the sample, that is, the degreasing treatment not only affects the oil content value, but also may affect the component detection. GB / T5163-2006 "Sintered metal materials (excluding cemented carbide) permeability sintered metal materials - Determination of density, oil content and porosity" also points out: In actual application, there are many methods for degreasing (such as heating under protective atmosphere). When there is a dispute, the Soxhlet extraction method is used as the standard method. Soxhlet extraction method, namely GB / T 8643 "Determination of lubricant content in lubricant-containing metal powders - Soxhlet extraction method".

[0004] When using a Soxhlet extractor, the solvent is typically heated to extract the lubricating oil from the sample, and tap water is used for cooling. Extraction typically takes 5 to 20 hours. This prolonged extraction process requires constant supervision, which can be labor-intensive. Without constant supervision, there are safety risks. For example, in the event of a power outage, the solvent in the extractor could overheat and overflow, potentially causing a test accident.

[0005] Furthermore, during extraction tests, cooled tap water is drained from the outlet, causing water waste and increased production costs. For example, a certain extractor model uses approximately 50 liters of water per hour. A 10-hour test, for example, requires 500 liters of water. This is particularly true in powder metallurgy industries, where oil content testing is frequent, leading to significant water waste. Utility Model Content

[0006] The purpose of the utility model is to provide a device for detecting the oil content of sintered products to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A device for detecting the oil content of sintered products comprises an extractor and a circulating water system connected to the extractor, wherein the circulating water system comprises a water tank, a water pump, an extractor, and a circulating water pipe connected therebetween; a heat source is provided at the bottom of the extractor, the water pump is connected to the power supply via a water pump power line, the heat source is connected to the power supply via a heat source power line, and a timer socket is connected to the power supply.

[0009] As a further solution of the present invention: the extractor is provided with a water inlet and a water outlet connected to the circulating water pipe, the water outlet is located at the upper part of the extractor, and the water inlet is located below the water outlet.

[0010] As a further solution of the present invention: the circulating water pipe includes a return water pipe, one end of the return water pipe is connected to the water outlet, and the other end of the return water pipe is located at the upper part of the water tank.

[0011] As a further solution of the present invention: the circulating water pipe includes a water suction pipe, one end of the water suction pipe is connected to a water pump, and the other end of the water suction pipe is located at the bottom of the water tank.

[0012] As a further solution of the present invention: the water outlet end of the water pump is connected to a water outlet pipe, and the other end of the water outlet pipe is communicated with the water inlet.

[0013] As a further solution of the present invention: an alarm is provided on the circulating water pipe, the alarm is connected to a detection end, and the detection end is fixed on the water suction pipe; a time relay is provided on the power supply.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention arranges a liquid flow interruption alarm on the circulating water pipe to detect the cooling circulating water, and arranges a time relay and a timer socket at the same time, so that a timed test can be carried out, and an alarm will be issued when a water interruption occurs during the test; when the test is stopped due to an unexpected power outage, the time relay can be used for timing, and there is no need to start the test from the beginning, thereby improving the test efficiency and increasing the safety of the test by not requiring continuous supervision by personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the detection device of this embodiment;

[0016] In the figure: 1-water inlet, 2-water outlet, 3-water tank, 4-water pump, 5-water suction pipe, 6-water outlet pipe, 7-water return pipe, 8-heat source, 9-heat source power cord, 10-alarm, 11-alarm power cord, 12-detection end, 13-water pump power cord, 14-time relay, 15-power supply, 16-timer socket. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1 In an embodiment of the utility model, a device for detecting the oil content of a sintered product includes an extractor. A heat source 8 is provided at the bottom of the extractor. The bottom of the extractor is placed in a groove of the heat source 8 and is fixed vertically. The heat source 8 is connected to a power supply 15. The heat source 8 is connected to the power supply 15 through a heat source power line 9. A timer socket 16 is connected to the power supply 15. In this embodiment, the power supply 15 is a socket strip. The power supply 15 supplies power to the heat source 8, and the timer socket 16 provides power to the power supply 15. The power supply 15 is connected to the power supply 15 and is connected or disconnected, thereby controlling the power-on time of the entire detection equipment and, when necessary, cutting off the power to the equipment to ensure the safety of the equipment.

[0019] The extractor is connected to a circulating water system, which includes a water tank 3 and a circulating water pipe connected between the water tank 3 and the extractor. The extractor is provided with a water inlet 1 and a water outlet 2 connected to the circulating water pipe. The water outlet 2 is located at the upper part of the extractor, and the water inlet 1 is located below the water outlet 2. The circulating water pipe includes a return pipe 7, one end of the return pipe 7 is connected to the water outlet 2, and the other end of the return pipe 7 is located at the upper part of the water tank 3. The circulating water pipe includes a suction pipe 5, one end of the suction pipe 5 is connected to a water pump 4, and the water pump 4 is connected to a power supply 15 through a water pump power line 13. The other end of the suction pipe 5 is located at the bottom of the water tank 3, and the water outlet end of the water pump is connected to the outlet pipe 6, and the other end of the outlet pipe 6 is connected to the water inlet 1.

[0020] An alarm 10 is provided on the circulating water pipe. The alarm can use a liquid level interruption alarm. For example, the specification model can be XKC-Y26A-V. This type of liquid level interruption alarm does not directly contact the liquid and will not affect the water flow in the circulating water pipe. The alarm 10 is connected to a detection end 12, and the detection end 12 is fixed on the suction pipe 5. The suction pipe 5 is a non-metallic thin tube of 5-10mm. The alarm power cord 11 is connected to the power supply 15, and the power supply 15 is provided with a time relay 14.

[0021] When the utility model is in use, the heat source 8 is placed on the workbench, the extractor is placed in the groove of the heat source 8 and fixed vertically; the inlet of the water suction pipe 5 of the water pump 4 is placed at the bottom of the water tank 3, the water outlet pipe 6 of the water pump 4 is connected to the water inlet 1 of the extractor, and the water pump power line 13 is connected to the power supply 15; the water outlet 2 of the extractor is connected to one end of the return pipe 7, and the other end of the return pipe 7 is placed inside the water tank 3; the heat source power line 9 is connected to the power supply 15, the alarm 10 is connected to the power supply 15 through the alarm power line 11, and the detection end 12 of the alarm 10 is fixed on the water suction pipe 5 of the water pump 4; the time relay 14 is connected to the power supply 15 through the power line.

[0022] When the test reaches the set time, the timer socket 16 is disconnected, and the heat source 8 and the water pump 4 stop working; if the power is accidentally cut off during the test, since the heat source 8 and the water pump 4 are both controlled by the power supply 15, when the water circulation cannot be cooled, the heat source 8 will stop heating, which can avoid the safety risks brought by continuing heating when the water supply is cut off but the power is not cut off; at the same time, the time relay 14 can record the length of the test, and the test can be continued after the power is turned on. The test does not need to be repeated for the time that has been tested; if the water pump 4 fails unexpectedly and stops working, or the water tank 3 fails unexpectedly and the water volume is insufficient, it will affect the operation and performance of the water pump 4, and the alarm 10 can monitor this situation.

[0023] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0024] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A device for detecting the oil content of sintered products, comprising an extractor and a circulating water system connected to the extractor, characterized in that: The circulating water system comprises a water tank (3), a water pump (4), an extractor, and a circulating water pipe connected therebetween; a heat source (8) is provided at the bottom of the extractor; the water pump (4) is connected to the power supply (15) via a water pump power line (13); the heat source (8) is connected to the power supply (15) via a heat source power line (9); and a timer socket (16) is connected to the power supply (15).

2. The device for detecting oil content of sintered products according to claim 1, characterized in that: The extractor is provided with a water inlet (1) and a water outlet (2) connected to a circulating water pipe, the water outlet (2) is located at the upper part of the extractor, and the water inlet (1) is located below the water outlet (2).

3. The device for detecting oil content of sintered products according to claim 2, characterized in that: The circulating water pipe comprises a return pipe (7), one end of which is connected to the water outlet (2), and the other end of which is located above the water tank (3).

4. The device for detecting oil content in sintered products according to claim 2, wherein: The circulating water pipe comprises a water suction pipe (5), one end of the water suction pipe (5) is connected to a water pump (4), and the other end of the water suction pipe (5) is located at the bottom of the water tank (3).

5. The device for detecting oil content of sintered products according to claim 4, characterized in that: The water outlet end of the water pump is connected to a water outlet pipe (6), and the other end of the water outlet pipe (6) is communicated with the water inlet (1).

6. The device for detecting oil content of sintered products according to claim 4, characterized in that: The circulating water pipe is provided with an alarm (10), the alarm (10) is connected to a detection end (12), the detection end (12) is fixed on the water suction pipe (5), and a time relay (14) is provided on the power supply.

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