CN212250851U - Lubricating and cooling system of bearing of sand making machine - Google Patents
Lubricating and cooling system of bearing of sand making machine Download PDFInfo
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- CN212250851U CN212250851U CN202021061061.6U CN202021061061U CN212250851U CN 212250851 U CN212250851 U CN 212250851U CN 202021061061 U CN202021061061 U CN 202021061061U CN 212250851 U CN212250851 U CN 212250851U
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Abstract
The utility model discloses a lubricating and cooling system of a bearing of a sand making machine, which comprises a lubricating system, a cooling system, a controller and an oil tank, wherein hydraulic oil and a first temperature sensor are arranged in the oil tank, and the oil tank is provided with a first inlet, a first outlet, a first inlet and a second outlet; the lubricating system comprises a first motor-pump set, and the first motor-pump set is connected with the first outlet; the cooling system comprises a plate heat exchanger, a heat medium flow channel and a refrigerant flow channel are arranged in the plate heat exchanger, one end of the heat medium flow channel is connected with a second outlet through a second motor pump group, and the other end of the heat medium flow channel is connected with a second inlet; one end of the refrigerant flow channel is connected with a condenser through a compressor, the condenser is connected with an expansion valve through a liquid storage tank, and the expansion valve is connected with the refrigerant flow channel; the first motor-pump set, the second motor-pump set and the compressor are all connected with the controller. The utility model discloses lubricate the heat dissipation to the bearing and have the advantage that is influenced by ambient temperature for a short time, the bearing is not fragile.
Description
Technical Field
The utility model belongs to the cooling arrangement field of system sand machine especially relates to a system sand machine bearing's lubricated cooling system.
Background
The bearing of system sand machine sets up in system sand machine's host computer, can produce a large amount of heats in the in-service use, and easy overheated and damage. The bearing is cooled by the air-cooled hydraulic system, the air-cooled hydraulic system uses hydraulic oil as a cooling medium, the hydraulic oil enters the host from an oil inlet of the host to lubricate and cool the bearing, the warmed hydraulic oil is discharged from an oil outlet of the host to be cooled by air flow, and the cooled hydraulic oil flows back to the host again to circulate continuously to lubricate and cool the bearing. Because the radiating speed of hydraulic oil is relevant with air temperature, it is great to be influenced by ambient temperature, and system sand machine can constantly heat up when the working process, makes ambient temperature fluctuation big, and seasonal variation also can further increase ambient temperature fluctuation, leads to the radiating speed of hydraulic oil to change undulantly, and the hydraulic oil temperature that flows back to the bearing is unstable, changes greatly. When the temperature of the hydraulic oil which flows back to the bearing is too low, the viscosity of the hydraulic oil is high, the ideal working temperature cannot be reached, and a good oil film cannot be formed on the bearing, so that the bearing is easy to wear and damage; when the temperature of the hydraulic oil which flows back to the bearing is too high, the heat of the bearing is difficult to be rapidly taken away, so that the bearing is easy to overheat and damage. Therefore, the existing air-cooled hydraulic system has the defect of being greatly influenced by the ambient temperature when being used for lubricating and radiating the bearing, and the bearing is easy to damage.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a system sand machine's lubricated cooling system. The utility model discloses lubricate the heat dissipation to the bearing and have the advantage that is influenced by ambient temperature for a short time, the bearing is not fragile.
The technical scheme of the utility model: the lubricating and cooling system of the bearing of the sand making machine comprises a lubricating system, a cooling system, a controller and an oil tank, wherein hydraulic oil and a first temperature sensor are arranged in the oil tank, a first inlet, a first outlet, a second inlet and a second outlet are arranged on the oil tank, and the first inlet is used for being connected with an oil outlet of a host;
the lubricating system comprises a first motor pump set, the oil inlet end of the first motor pump set is connected with a first outlet, and the oil outlet end of the first motor pump set is used for being connected with the oil inlet of the main machine;
the cooling system comprises a plate heat exchanger, a heat medium flow channel and a refrigerant flow channel are arranged in the plate heat exchanger, one end of the heat medium flow channel is connected with a second outlet through a second motor pump group, and the other end of the heat medium flow channel is connected with a second inlet; one end of the refrigerant flow channel is connected with a condenser through a compressor, the condenser is connected with an expansion valve through a liquid storage tank, and the expansion valve is connected with the other end of the refrigerant flow channel;
the first motor-pump set, the second motor-pump set and the compressor are all connected with the controller.
In the lubricating and cooling system for the bearing of the sand making machine, the first motor pump set is connected with the flow regulator through the filter, the flow regulator is connected with the oil inlet of the main machine through the pressure regulator, and the flow regulator is connected with the controller.
In the lubricating and cooling system for the bearing of the sand making machine, the liquid storage tank is connected with the expansion valve through the drying agent tank.
In the lubricating and cooling system for the bearing of the sand making machine, one end of the refrigerant flow channel is connected with the compressor through the first pipeline, and the expansion valve is provided with the temperature sensing bulb connected with the outer side wall of the first pipeline.
In the lubricating and cooling system for the bearing of the sand making machine, the compressor is connected with the condenser through the second pipeline, and the second pipeline is provided with the pressure gauge.
In the lubricating and cooling system for the bearing of the sand making machine, the first inlet is connected with an oil outlet of the main machine through an oil return filter, and a second temperature sensor connected with the controller is arranged at the oil outlet of the main machine.
Compared with the prior art, the utility model discloses can control the velocity of flow of the hydraulic oil that enters into in the host computer, when the hydraulic oil temperature in the oil tank is lower, hydraulic oil passes through the host computer with slower speed, reduces host computer calorific loss, makes the hydraulic oil that enters into in the host computer can heat up to the operating temperature of ideal fast, forms good oil film on the bearing to make the difficult wearing and tearing of bearing and damage. When the temperature of the hydraulic oil in the oil tank is higher, the hydraulic oil can be led into a cooling system for heat dissipation. When the refrigerant dissipates heat in the condenser, the refrigerant is changed into high-temperature and high-pressure liquid under the action of the compressor, and the temperature difference between the refrigerant and the ambient temperature is great, so that the refrigerant is slightly influenced by the ambient temperature, and can dissipate heat quickly even if the ambient temperature is high; when the refrigerant exchanges heat with hydraulic oil in the plate heat exchanger, the temperature is extremely low, the temperature difference between the refrigerant and the hydraulic oil is large, the hydraulic oil can be ensured to be rapidly cooled, the heat of the bearing can be rapidly taken away when the refrigerant flows through the bearing in sequence, and the bearing is not easy to overheat and damage.
Therefore, the utility model discloses lubricate the heat dissipation to the bearing and have the advantage that is influenced by ambient temperature for a short time, the bearing is not fragile.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The labels in the figures are: 1-a lubricating system, 2-a cooling system, 3-a controller, 4-an oil tank, 6-a host, 101-a first motor-pump group, 102-a filter, 103-a flow regulator, 104-a pressure regulator, 105-an oil return filter, 106-a second temperature sensor, 201-a plate heat exchanger, 202-a second motor-pump group, 203-a compressor, 204-a condenser, 205-a liquid storage tank, 206-an expansion valve, 207-a desiccant tank, 208-a first pipeline, 209-a second pipeline, 210-a pressure gauge, 211-a temperature sensing bag, 401-a first temperature sensor, 402-a first inlet, 403-a first outlet, 404-a second inlet, 405-a second outlet, 601-an oil outlet and 602-an oil inlet.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Examples are given. As shown in fig. 1, the lubricating and cooling system of the bearing of the sand making machine comprises a lubricating system 1, a cooling system 2, a controller 3 and an oil tank 4, wherein hydraulic oil and a first temperature sensor 401 are arranged in the oil tank 4, a first inlet 402, a first outlet 403, a second inlet 404 and a second outlet 405 are arranged on the oil tank 4, and the first inlet 402 is used for being connected with an oil outlet 601 of a host machine 6;
the lubricating system 1 comprises a first motor-pump set 101, the oil inlet end of the first motor-pump set 101 is connected with a first outlet 403, and the oil outlet end of the first motor-pump set 101 is used for being connected with an oil inlet 602 of the main engine 6;
the cooling system 2 comprises a plate type heat exchanger 201, a heat medium flow channel and a cooling medium flow channel are arranged in the plate type heat exchanger 201, one end of the heat medium flow channel is connected with a second outlet 405 through a second motor pump unit 202, and the other end of the heat medium flow channel is connected with a second inlet 404; one end of the refrigerant flow channel is connected with a condenser 204 through a compressor 203, the condenser 204 is connected with an expansion valve 206 through a liquid storage tank 205, a high-pressure liquid refrigerant (such as Freon) is arranged in the liquid storage tank 205, and the expansion valve 206 is connected with the other end of the refrigerant flow channel;
the first motor-pump group 101, the second motor-pump group 202 and the compressor 203 are all connected with the controller 3.
The first motor-pump group 101 is connected with a flow regulator 103 through a filter 102, the flow regulator 103 is connected with an oil inlet of the main machine 6 through a pressure regulator 104, and the flow regulator 103 is connected with the controller 3.
The reservoir 205 is connected to an expansion valve 206 via a desiccant canister 207. The desiccant tank 207 is also called a liquid storage dryer in the industry, is a commercially available product and is mainly used for absorbing water vapor in a pipeline.
One end of the refrigerant channel is connected to the compressor 203 through a first pipe 208, and the expansion valve 206 is provided with a thermal bulb 211 connected to the outer side wall of the first pipe 208. The expansion valve 206 is a conventional one, and may be freely selected by those skilled in the art, the bulb 211 belongs to a part of the expansion valve 206, and the expansion valve 206 detects the temperature of the refrigerant flowing out of the plate heat exchanger 201 through the bulb 211, and automatically adjusts the opening degree thereof.
The compressor 203 is connected with the condenser 204 through a second pipeline 209, and a pressure gauge 210 is arranged on the second pipeline 209.
The first inlet 402 is connected with an oil outlet 601 of the main machine 6 through an oil return filter 105, and a second temperature sensor 106 connected with the controller 3 is arranged at the oil outlet 601 of the main machine 6.
The working principle is as follows: when the sand making machine is started, the controller 3 outputs a first signal to the first motor-pump set 101, the first motor-pump set 101 works to extract hydraulic oil in the oil tank 4, the hydraulic oil enters the host machine 6 through the first motor-pump set 101, the filter 102, the flow regulator 103, the pressure regulator 104 and the oil inlet 602 in sequence, flows through the bearing to lubricate and dissipate heat of the bearing, the temperature of the hydraulic oil is raised, the raised hydraulic oil returns to the oil tank 4 through the oil outlet 601, the oil return filter 105 and the first inlet 402 in sequence, and the temperature of the hydraulic oil in the oil tank 4 can be gradually raised.
The first temperature sensor 401 generates a second signal according to the temperature of the hydraulic oil in the oil tank 4 and transmits the second signal to the controller 3, the controller 3 judges the temperature of the hydraulic oil in the oil tank 4 according to the second signal, the second temperature sensor 106 generates a third signal according to the temperature of the hydraulic oil at the oil outlet 601 of the main machine and transmits the third signal to the controller 3, and the controller 3 judges the temperature of the hydraulic oil at the oil outlet 601 according to the third signal. When the controller 3 judges that the temperature of the hydraulic oil in the oil tank 4 is less than 15 ℃, and the temperature difference value between the hydraulic oil in the oil tank 4 and the hydraulic oil at the oil outlet 601 is below 15 ℃ (the bearing is not overheated at this time), the controller 3 outputs a fourth signal to the flow regulator 103, the flow regulator 103 reduces the opening degree, so that the hydraulic oil passes through the host 6 at a very slow speed (the lower the temperature of the hydraulic oil in the oil tank 4 is, the slower the speed of the hydraulic oil passing through the host 6 is), the hydraulic oil entering the host 6 can be quickly heated to a normal working temperature, a good oil film is formed to lubricate the bearing, and the bearing is not easy to damage. When the controller 3 judges that the temperature difference between the hydraulic oil in the oil tank 4 and the hydraulic oil at the oil outlet 601 is more than 15 ℃, the bearing is judged to be overheated, the controller 3 outputs a fifth signal to the flow regulator 103, the opening degree of the flow regulator 103 is increased, the hydraulic oil passes through the host machine 6 at a higher speed (the larger the temperature difference is, the higher the speed of the hydraulic oil passing through the host machine 6 is), the heat of the bearing is taken away quickly, and the bearing is prevented from being damaged due to overheating.
When the controller 3 judges that the temperature of the hydraulic oil in the oil tank 4 reaches above 40 ℃, the controller respectively sends a sixth signal and a seventh signal to the second motor-pump set 202 and the compressor 203, and the second motor-pump set 202 and the compressor 203 are started. The hydraulic oil in the oil tank 4 sequentially passes through the second outlet 405 and the second motor pump unit 202 to enter the plate heat exchanger 201 for heat exchange and cooling, the hydraulic oil with the lowered temperature returns to the oil tank 4 from the second inlet 404, and the temperature of the hydraulic oil in the oil tank 4 is lowered. Under the action of the compressor 203, refrigerant in the liquid storage tank 205 enters the expansion valve 206 through the desiccant tank 207, the refrigerant is vaporized through the expansion valve, the temperature is rapidly reduced, the refrigerant enters the plate heat exchanger 201 to perform heat exchange with hydraulic oil to raise the temperature, then enters the compressor 203 through the first pipeline 208, is changed into high-temperature and high-pressure liquid through the compressor 203, then enters the condenser 204 through the second pipeline 209 to dissipate heat, and then flows back to the liquid storage tank 205.
The utility model discloses lubricate the heat dissipation to the bearing and have the advantage that is influenced by ambient temperature for a short time, the bearing is not fragile.
Claims (6)
1. Lubricated cooling system of system sand machine bearing, its characterized in that: the lubricating system comprises a lubricating system (1), a cooling system (2), a controller (3) and an oil tank (4), wherein hydraulic oil and a first temperature sensor (401) are arranged in the oil tank (4), a first inlet (402), a first outlet (403), a second inlet (404) and a second outlet (405) are arranged on the oil tank (4), and the first inlet (402) is used for being connected with an oil outlet (601) of a host (6);
the lubricating system (1) comprises a first motor-pump set (101), the oil inlet end of the first motor-pump set (101) is connected with a first outlet (403), and the oil outlet end of the first motor-pump set (101) is used for being connected with an oil inlet (602) of a main machine (6);
the cooling system (2) comprises a plate type heat exchanger (201), a heat medium flow channel and a cooling medium flow channel are arranged in the plate type heat exchanger (201), one end of the heat medium flow channel is connected with a second outlet (405) through a second motor pump set (202), and the other end of the heat medium flow channel is connected with a second inlet (404); one end of the refrigerant flow channel is connected with a condenser (204) through a compressor (203), the condenser (204) is connected with an expansion valve (206) through a liquid storage tank (205), and the expansion valve (206) is connected with the other end of the refrigerant flow channel;
the first motor-pump set (101), the second motor-pump set (202) and the compressor (203) are all connected with the controller (3).
2. The sand maker bearing lubrication cooling system of claim 1, wherein: the first motor-pump set (101) is connected with a flow regulator (103) through a filter (102), the flow regulator (103) is connected with an oil inlet of the main machine (6) through a pressure regulator (104), and the flow regulator (103) is connected with the controller (3).
3. The sand maker bearing lubrication cooling system of claim 1, wherein: the liquid storage tank (205) is connected with the expansion valve (206) through a desiccant tank (207).
4. The sand maker bearing lubrication cooling system of claim 1, wherein: one end of the refrigerant flow channel is connected with the compressor (203) through a first pipeline (208), and a temperature sensing bulb (211) connected with the outer side wall of the first pipeline (208) is arranged on the expansion valve (206).
5. The sand maker bearing lubrication cooling system of claim 1, wherein: the compressor (203) is connected with the condenser (204) through a second pipeline (209), and a pressure gauge (210) is arranged on the second pipeline (209).
6. The sand maker bearing lubrication cooling system of claim 1, wherein: the first inlet (402) is connected with an oil outlet (601) of the main machine (6) through an oil return filter (105), and a second temperature sensor (106) connected with the controller (3) is arranged at the oil outlet (601) of the main machine (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021061061.6U CN212250851U (en) | 2020-06-10 | 2020-06-10 | Lubricating and cooling system of bearing of sand making machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021061061.6U CN212250851U (en) | 2020-06-10 | 2020-06-10 | Lubricating and cooling system of bearing of sand making machine |
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| CN212250851U true CN212250851U (en) | 2020-12-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879788A (en) * | 2021-01-22 | 2021-06-01 | 宁波云德半导体材料有限公司 | External quartz machining center lubricating liquid cooling system device |
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2020
- 2020-06-10 CN CN202021061061.6U patent/CN212250851U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879788A (en) * | 2021-01-22 | 2021-06-01 | 宁波云德半导体材料有限公司 | External quartz machining center lubricating liquid cooling system device |
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