CN213419849U - Lubricating oil forced circulation cooling device of banburying speed reducer - Google Patents
Lubricating oil forced circulation cooling device of banburying speed reducer Download PDFInfo
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- CN213419849U CN213419849U CN202021488832.XU CN202021488832U CN213419849U CN 213419849 U CN213419849 U CN 213419849U CN 202021488832 U CN202021488832 U CN 202021488832U CN 213419849 U CN213419849 U CN 213419849U
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Abstract
The utility model discloses a banburying speed reducer lubricating oil forced circulation cooling device belongs to lubricating oil cooling technical field. One end of a shell-and-tube heat exchanger is provided with a water inlet and a water outlet, one side of the shell-and-tube heat exchanger is provided with an oil inlet and an oil outlet, and cooling water flows in the heat exchanger ceaselessly; the lubricating oil of the speed reducer is forced to circulate in the pipeline by an oil pump driven by a motor, so that heat exchange is realized in the heat exchange device, and the effect of reducing the temperature of the lubricating oil is achieved. The forced circulation cooling device for the lubricating oil of the banburying speed reducer realizes reliable lubricating oil cooling performance through a simple structure, can reasonably configure the amount of the lubricating oil, reduces the cost, saves the space and is convenient to install.
Description
Technical Field
The utility model relates to a speed reducer lubricating oil cooling technical field, especially a banburying speed reducer lubricating oil forced circulation cooling device.
Background
The rubber internal mixer is one of the most basic devices in rubber enterprises, and when the rubber internal mixer is used for rubber internal mixing, the continuous operation of the devices for an internal mixing period is required to be ensured, namely, raw materials are mixed into qualified rubber products until tire products are prepared, otherwise, the damage of the devices and the waste of the raw materials are caused. The power of the internal mixer is transmitted by a large motor through a speed reducer, so that the reliability and stability of the speed reducer are very important. The speed reducer is provided with a lubricating and cooling system, so that on one hand, a lubricating oil film is formed on the contact surface of moving parts such as the bearing, the gear and the like to reduce friction and reduce the generated heat, on the other hand, the lubricating oil is kept to circulate at a lower temperature, and the speed reducer can continuously and stably operate.
The speed reducer is different because of its operating mode, and lubricated mode is various: the light-load low-speed bearing can be lubricated by adopting glycerol or by adopting thin oil splashing lubrication; and oil-immersed lubrication or splash lubrication and the like can be adopted for the gears.
The speed reducer for the internal mixer is heavy-duty, the power of the motor is generally above 2000Kw, the speed of the output shaft is not very high, but the input shaft is generally high in speed, reaching 1000rpm, and the torque of the output shaft is required to be large, so that the lubrication and the cooling are particularly important. The temperature of the lubricating oil of the internal mixer is generally kept between 25 and 75 ℃, and when the temperature is lower than 25 ℃, the viscosity of the oil is increased, the flowing is not good, and the strong lubrication is difficult; when the temperature is higher than 75 ℃, the viscosity of the lubricating oil is reduced, a lubricating oil film cannot be formed on a moving joint surface, and the lubricating effect cannot be achieved.
The shell of a common speed reducer is an oil tank of lubricating oil, and a gear at the bottom rotates at a high speed to perform splash lubrication on an upper gear under the centrifugal action of the lubricating oil; meanwhile, a gear pump is arranged on the speed reducer, lubricating oil in the speed reducer shell is sucked into the gear pump and enters an oil duct on the bearing block through a pipeline, an outlet of the oil duct is arranged beside the bearing roller support, and the lubricating oil enters the bearing to realize lubrication and cooling. The lubricating and cooling scheme is reasonable, the structure is simple, and the speed reducer with lower load, low speed and not very large structural size can meet the use requirement; however, the reduction gear box is not always suitable for a large heavy load such as an internal mixer and a reduction gear box with a large load impact. The internal mixer speed reducer has the characteristics of structure and working condition, a large amount of lubricating oil is needed to meet the requirements of cooling and lubrication, but the amount of the lubricating oil is too large, and more parts of the gear are immersed in the oil to seem to be well lubricated and cooled; if the amount of oil is reduced, the heat capacity is reduced and it is difficult to achieve heat balance, resulting in a continuous increase in temperature. In order to solve the problems that the speed reducer needs a large amount of lubricating oil and has a limited usable volume, the design that a lubricating oil station and a lubricating oil forced circulation cooling device are additionally arranged outside the speed reducer body is adopted.
Lubricating oil circulates outside the cavity and exchanges heat with cooling water in a heat exchanger of the lubricating oil cooling device, so that the aim of reducing the oil temperature is fulfilled; meanwhile, the oil temperature is reduced, the aging of the sealing piece can be delayed, and the effect of preventing the premature oil leakage of the speed reducer is achieved through the cooler. Lubricating oil flows out from an oil outlet at the bottom of the speed reducer, passes through the cooler, enters from a top observation port of the speed reducer, and is sprayed to the meshing part of the worm wheel, the worm and the gear, so that the forced lubrication effect is achieved. Can prevent the phenomenon that the worm gear is seriously abraded due to dry grinding of the worm gear caused by poor lubrication when the lubricating oil is insufficient. The safety and the reliability of the operation of the equipment are ensured.
Disclosure of Invention
The utility model aims at providing a banburying speed reducer lubricating oil forced circulation cooling device overcomes prior art's is not enough, through rational preparation cooling water flow, makes speed reducer lubricating oil obtain appropriate cooling to guarantee the reliable and stable operation of speed reducer.
The utility model discloses an adopt such method to realize: banburying speed reducer lubricating oil forced circulation cooling device, its characterized in that: a motor, an oil pump, a mesh type oil filter, a shell-and-tube heat exchanger, a main pipeline, an oil inlet port and an oil outlet port are arranged on an oil tank base, a sewage ball valve is arranged at the lower part of the oil tank base, one end of the oil pump is provided with the oil inlet port which is connected with the oil outlet end of a speed reducer, the oil pump is connected with a driving motor, the oil outlet of the oil pump is connected with the oil inlet end of the mesh type oil filter, the oil outlet of the mesh type oil filter is connected with one end of the main pipeline, the other end of the main pipeline is connected with the oil inlet of the shell-and-tube heat exchanger, the oil outlet port of the shell-and-tube heat exchanger is connected with the oil inlet end of the speed reducer, one end surface of the shell-and-tube heat exchanger is provided with a cooling, the target flowmeter is installed on the oil inlet port pipeline, the shockproof thermometer is installed on the oil outlet port pipeline, and the pressure gauge is installed above the thermometer.
The pressure difference before and after the filter is set to be 0.2 MPa.
The set pressure value of the safety valve is 0.5 MPa.
The mesh type oil filter is a filter disc made of a metal wire mesh.
The shell-and-tube heat exchanger is a tube formed by compounding a red copper tube and an aluminum tube.
The diameter ratio of the through diameter of the lubricating oil circulation pipeline to the through diameter of the cooling water pipeline is 1: 1.
In the scheme of the utility model, one end of the shell-and-tube heat exchanger is provided with a water inlet and a water outlet, one side is provided with an oil inlet and an oil outlet, and cooling water flows ceaselessly inside the shell-and-tube heat exchanger; lubricating oil of the speed reducer is forced to circulate in a pipeline by an oil pump driven by a motor, and heat exchange is realized in a shell-and-tube heat exchanger, so that the effect of reducing the temperature of the lubricating oil is achieved.
Compared with the prior art, the beneficial effects of the utility model are that:
the forced circulation cooling device for the lubricating oil of the banburying speed reducer realizes reliable lubricating oil cooling performance through simple structural design, can reasonably configure the amount of the lubricating oil, reduces the cost, saves the space and is convenient to install. The temperature of speed reducer lubricating oil is controlled stably and reasonably, the operation of the mesh type oil filter is reliable, the maintenance is convenient, other power sources are not needed, the filter element is a filter disc made of a metal wire mesh, and the mesh type oil filter has the characteristics of high strength, large oil passing capacity, ensured filter precision, convenience in cleaning and the like. The shell-and-tube heat exchanger adopts a technology of combining a red copper tube and an aluminum tube into a tube, greatly increases the heat exchange area, and has the characteristics of high heat exchange efficiency, small volume, light weight, environmental protection, energy conservation and the like compared with similar products.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic diagram of the right side view of the structure of FIG. 1;
FIG. 3 is a schematic top view of the structure of FIG. 1;
fig. 4 is a schematic diagram of the present invention.
In the figure: 1. an oil tank base; 2. an oil pump; 3. a motor; 4. a mesh type oil filter; 5. a main oil pipe; 6. a differential pressure transmitter; 7. a cooling water inlet; 8. a cooling water outlet; 9. a safety valve; 10. a bypass; 11. a shell-and-tube heat exchanger; 12. an oil outlet port; 13. an oil inlet port; 14. a pressure gauge; 15. a target-type flow meter; 16. a pressure gauge; 17. a blowdown ball valve; 18. shockproof thermometer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings
Examples
See figures 1-4 for an illustration: the forced lubricating oil circulating and cooling device for the banburying speed reducer is composed of an independent lubricating oil supply station and a forced lubricating oil circulating and cooling system.
The independent lubricating oil supply station adopts an oil tank as a base, namely the oil tank base 1, the oil tank base 1 is provided with a motor 3, an oil pump 2, a mesh type oil filter 4, a shell-and-tube heat exchanger 11, a main oil pipeline 5, an oil inlet port 13 and an oil outlet port 12, the lower part of the oil tank base 1 is provided with a sewage discharge ball valve 17, and leaked oil and water dirt can be discharged through the sewage discharge ball valve 17 in time during maintenance.
The lubricating oil forced circulation cooling system adopts a shell-and-tube heat exchanger 11, wherein one end of the shell-and-tube heat exchanger is provided with a cooling water inlet 7 and a cooling water outlet 8, one side of the shell-and-tube heat exchanger is provided with an oil inlet port 13 and an oil outlet port 12, and cooling water flows ceaselessly inside the shell-and-tube heat exchanger 11; lubricating oil of the speed reducer drives the oil pump 2 to force hot oil to circulate in the pipeline through the motor 3, and heat exchange is realized in the shell-and-tube heat exchanger 11, so that the effect of reducing the temperature of the lubricating oil is achieved.
An oil inlet port 13 of the independent lubricating oil forced circulation cooling device is connected with an oil outlet end of the speed reducer, one end of the oil pump 2 is provided with the oil inlet port 13, and the other end of the oil pump is connected with the driving motor 3; the oil outlet of the oil pump 2 is connected with the oil inlet end of the mesh type oil filter 4, the oil outlet of the mesh type oil filter 4 is connected with one end of the main pipeline 5, the other end of the main pipeline 5 is connected with the oil inlet of the shell-and-tube heat exchanger 11, the oil outlet end 12 of the shell-and-tube heat exchanger 11 is connected with the oil inlet end of the speed reducer, a cooling water inlet 7 and a cooling water outlet 8 are arranged on one end face of the shell-and-tube heat exchanger 11, cooling water continuously enters and exits the shell-and-tube heat exchanger 11 under the action of self pressure, heat exchange is realized between high-temperature lubricating oil. A differential pressure transmitter 6 is arranged at a parallel position beside the mesh type oil filter 4, when the front and back differential pressure of the filter reaches a set value of 0.2MPa, the differential pressure transmitter 6 sends a signal to trigger an alarm to send an alarm to prompt maintenance personnel to replace a filter element; when the pressure difference before and after the filter reaches a set value, the pressure difference signal transmitter 6 sends a signal, the alarm sends an alarm to prompt maintenance personnel to replace the filter element; a bypass 10 is arranged beside the differential pressure transmitter 6 in parallel with the mesh type oil filter 4 pipeline, a safety valve 9 is arranged on the bypass 10, the set opening pressure value of the safety valve 9 is higher than the set value of the differential pressure transmitter 6, the pressure value which does not cause damage to the oil pump 2, the lubricating oil mesh type oil filter 4, the shell-and-tube heat exchanger 11, the main pipeline 5 and the like is 0.5MPa, the set pressure value of the safety valve 9 in the system is 0.5MPa, the mesh type oil filter 4 breaks down or is suddenly blocked accidentally, after the pressure difference is suddenly increased to reach the opening pressure of the safety valve 9 to 0.5MPa, the bypass 10 is opened, and the lubricating oil bypasses the mesh type oil filter 4 and. The filter disc can be replaced without stopping the machine.
The independent lubricating oil forced circulation cooling device is arranged at a position about 1 m away from the oil outlet of the speed reducer through a pipeline, the oil inlet and the oil outlet of the cooling device are opposite to the oil outlet and the oil inlet of the speed reducer, and the water inlet and the water outlet are connected with a tap water supply pipeline in a workshop.
The mesh-type oil filter 4 can filter out impurities and pollutants in lubricating oil, and plays a role in protecting the speed reducer.
The drift diameter of the lubricating oil circulation pipeline and the drift diameter of the matched cooling water pipeline are determined according to the aperture of the oil inlet and the oil outlet of the oil pump 2, the ratio of the drift diameter of the lubricating oil circulation pipeline to the drift diameter of the cooling water pipeline is 1:1 generally, and the optimal cooling effect can be achieved.
A target-type flowmeter 15 is arranged on the pipeline of the oil inlet 13 to detect the normal work of the whole oil circuit system and monitor the working state of each pipeline part; a shockproof thermometer 18 is arranged on the pipeline of the oil outlet port 12 to detect the temperature of the cooled lubricating oil, and a pressure gauge 16 is arranged above the shockproof thermometer 18 to record the temperature entering the speed reducer.
The mesh-type oil filter 4 is a filter disc made of a wire mesh, and has the characteristics of high strength, high oil passing capacity, ensured filtering precision, convenience in cleaning and the like.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. Banburying speed reducer lubricating oil forced circulation cooling device, its characterized in that: a motor (3), an oil pump (2), a mesh type oil filter (4), a shell-and-tube heat exchanger (11), a main pipeline (5), an oil inlet port (13) and an oil outlet port (12) are arranged on an oil tank base (1), a pollution discharge ball valve (17) is arranged on the lower portion of the oil tank base (1), the oil inlet port (13) is arranged at one end of the oil pump (2), the oil inlet port (13) is connected with an oil outlet end of a speed reducer, the oil pump (2) is connected with a driving motor (3), an oil outlet of the oil pump (2) is connected with the oil inlet end of the mesh type oil filter (4), an oil outlet of the mesh type oil filter (4) is connected with one end of the main pipeline (5), the other end of the main pipeline (5) is connected with an oil inlet of the shell-and-tube heat exchanger (11), the oil outlet port (12) of the shell-and-tube heat, the oil filter is characterized in that a pressure difference signal transmitter (6) is installed at a position beside a mesh type oil filter (4) in parallel, a bypass (10) is installed in parallel with the mesh type oil filter (4) pipeline on one side of the pressure difference signal transmitter (6), a safety valve (9) is arranged on the bypass (10), a target type flowmeter (15) is installed on an oil inlet port (13) pipeline, a shockproof thermometer (18) is installed on an oil outlet port (12) pipeline, and a pressure gauge (16) is installed at a position above the thermometer.
2. The forced circulation cooling device for lubricating oil of the internal mixing speed reducer according to claim 1, is characterized in that: the pressure difference before and after the mesh type oil filter (4) is set to be 0.2 MPa.
3. The forced circulation cooling device for lubricating oil of the internal mixing speed reducer according to claim 1, is characterized in that: the set pressure value of the safety valve (9) is 0.5 MPa.
4. The forced circulation cooling device for lubricating oil of the internal mixing speed reducer according to claim 1, is characterized in that: the mesh type oil filter (4) is a filter disc made of a metal wire mesh.
5. The forced circulation cooling device for lubricating oil of the internal mixing speed reducer according to claim 1, is characterized in that: the diameter ratio of the through diameter of the lubricating oil circulation pipeline to the through diameter of the cooling water pipeline is 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021488832.XU CN213419849U (en) | 2020-07-25 | 2020-07-25 | Lubricating oil forced circulation cooling device of banburying speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021488832.XU CN213419849U (en) | 2020-07-25 | 2020-07-25 | Lubricating oil forced circulation cooling device of banburying speed reducer |
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| Publication Number | Publication Date |
|---|---|
| CN213419849U true CN213419849U (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021488832.XU Active CN213419849U (en) | 2020-07-25 | 2020-07-25 | Lubricating oil forced circulation cooling device of banburying speed reducer |
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| CN (1) | CN213419849U (en) |
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- 2020-07-25 CN CN202021488832.XU patent/CN213419849U/en active Active
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