Open type oil supply system for gear box
By designing an open-type oil supply system with oil distribution stations and temperature-controlled oil channels, the oil supply of the multi-shaft high-speed gearbox can be adjusted, solving the problem of inconsistent oil demand and improving the stability and transmission efficiency of the gearbox.
Patent Information
- Application Number
- CN202422877969.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Multi-shaft high-speed gearboxes have inconsistent oil demand under different operating conditions, resulting in excess oil and energy loss. Existing technologies cannot effectively adjust the oil supply to improve stability and transmission efficiency.
An open oil supply system is adopted, with oil distribution and injection controlled by oil distribution station A and oil distribution station B respectively. Combined with temperature control oil passage, electromagnetic throttle valve, temperature sensor and control module, the real-time adjustment of bearing oil supply and thermal balance adjustment are realized.
It improves the stability and mechanical efficiency of the gearbox, extends its service life, and reduces energy loss.
Smart Images
Figure CN223854815U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to gear box lubrication field especially relates to an open oil supply system for gear box. BACKGROUND
[0002] In the use of multi-shaft high-speed gear box, not all shafts are in the loaded state, and whether loading has a great influence on the oil consumption required by the corresponding bearing and gear meshing; the gear box also has different oil demand under different working conditions, and generally, the maximum oil consumption under the corresponding bearing loading condition is used to calculate the distribution when the oil amount of the gear box is designed and calculated, so that there is an oil amount surplus when the gear box as a whole operates, thereby causing energy loss. SUMMARY
[0003] In order to solve the problems in the prior art, the utility model aims at providing an open oil supply system for gear box, which is used for oil supply of multi-shaft and multi-working condition high-speed gear box, can effectively balance and regulate the heat of each bearing of the gear box, and improve the stability and transmission efficiency of the gear box.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an open oil supply system for gear box, the gear box comprises a box body, a transmission shaft, a gear and a bearing, the gear is installed on the transmission shaft, and the transmission shaft is rotatably installed on the box body through the bearing; the oil supply system comprises an oil distribution station A, an oil distribution station B, a main oil channel and a plurality of oil distribution channels; wherein, the main oil channel is communicated through the oil distribution channel, the plurality of oil distribution channels 4 are respectively arranged at a plurality of bearings of the box body, and oil can flow through the bearings through the oil distribution channel and then enter the oil pool at the bottom of the box body; a spray pipe for spraying oil on the gear is also installed in the box body; wherein, the oil distribution station A can drive the oil to be distributed to a plurality of bearings on the gear box through the main oil channel, and the oil distribution station A can drive the oil to be sprayed on the gear through the spray pipe; the oil distribution station B can directly send the oil to any one or any multiple bearings on the gear box, thereby changing the oil supply amount of the specified bearing.
[0005] As a preferred, the box body is provided with an oil return port communicated with the oil pool, and the oil distribution station A and the oil distribution station B can extract the oil in the box body from the oil return port.
[0006] As a preferred, the gear box further comprises a plurality of temperature control oil channels, the plurality of temperature control oil channels correspond to the plurality of oil distribution channels one by one, and the temperature control oil channels are communicated with the oil distribution channels; the oil distribution station B can send the oil to the oil distribution channels through the temperature control oil channels.
[0007] As a preferred, an electromagnetic throttle valve is installed on the temperature control oil channel, and the electromagnetic throttle valve is electrically connected with the oil supply system; a check valve is installed on the oil distribution channel, and the check valve is arranged between the inlet of the oil distribution channel and the outlet of the temperature control oil channel.
[0008] As preferred, a pressure gauge for measuring oil pressure is installed on the oil distribution channel, the pressure gauge is electrically connected with the oil supply system, and the pressure gauge is arranged between the outlet of the temperature control oil channel and the bearing.
[0009] As preferred, a flow meter for measuring oil quantity is installed on both the oil distribution channel and the spray pipe, the flow meter is electrically connected with the oil supply system, and the flow meter is arranged between the outlet of the temperature control oil channel and the bearing.
[0010] As preferred, a temperature sensor is installed on the bearing, and the temperature sensor is electrically connected with the oil supply system.
[0011] As preferred, the oil supply system further comprises a control module for controlling the oil quantity flowing through the oil distribution channel.
[0012] The technical scheme of the utility model has the beneficial effects that: the system controls the temperature of the bearing and the mechanical efficiency of the gear box according to the working condition of the gear box, and instantaneously distributes oil under the conditions of gear lubrication, bearing lubrication and cooling, so that the transmission shaft, gear and bearing in the gear are balanced and regulated, the service life of the gear box is further improved, the stability of the gear box is provided, and the mechanical efficiency of the gear box is improved. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 Fig. 1 is a structural schematic view of an oil supply system;
[0014] Figure 2 Fig. 2 is a control logic diagram of the oil supply system.
[0015] Fig. 1 is a structural schematic view of an oil supply system; DETAILED DESCRIPTION
[0016] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model.
[0017] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like is the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0018] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise explicitly limited.
[0019] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0020] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature. Embodiment
[0021] As Figure 1 An open oil supply system for a gear box is shown, the gear box comprises a box body, a transmission shaft, gears and bearings 5, the gears are installed on the transmission shaft, the transmission shaft is rotatably installed on the box body through the bearings 5,
[0022] The oil supply system comprises an oil distribution station A1, an oil distribution station B2, a main oil passage 3 and a plurality of oil distribution passages 4; wherein the main oil passage 3 is connected through the oil distribution passages 4, the plurality of oil distribution passages 4 are respectively arranged at a plurality of bearings 5 of the box body, and the oil can flow through the bearings 5 through the oil distribution passages 4 and then enter the oil pool 12 at the bottom of the box body; a spray pipe for spraying oil to the gear is further arranged in the box body.
[0023] The oil distribution station A1 can drive the oil to be distributed to the plurality of bearings 5 on the gear box through the main oil passage 3, and the oil distribution station A1 can drive the oil to be sprayed on the gear through the spray pipe 10; the oil distribution station B2 can directly send the oil to any one or any plurality of bearings 5 on the gear box, thereby changing the oil supply amount of the specified bearing 5.
[0024] In this way, the system can feedback and control the temperature of the bearing 5 and the mechanical efficiency of the gear box according to the working condition of the gear box, so that the gear box can instantaneously distribute the oil supply under the conditions of meeting the gear lubrication, bearing 5 lubrication and cooling, and the transmission shaft, gear and bearing 5 in the gear phase are adjusted for thermal balance, the service life of the gear box is further improved, the stability of the gear box is provided, and the mechanical efficiency of the gear box is improved.
[0025] In the embodiment, the box body is provided with an oil return port 11 communicated with the oil pool 12, and the oil distribution station A1 and the oil distribution station B2 can extract the oil in the box body from the oil return port 11. In this way, the oil can be circulated to improve the stability of the oil supply.
[0026] In the embodiment, the gear box further comprises a plurality of temperature control oil passages 8, the plurality of temperature control oil passages 8 correspond to the plurality of oil distribution passages 4 one by one, the temperature control oil passage 8 is communicated with the oil distribution passage 4; the oil distribution station B2 can send the oil to the oil distribution passage 4 through the temperature control oil passage 8.
[0027] Further preferably, the temperature control oil passage 8 is provided with an electromagnetic throttle valve 9, the electromagnetic throttle valve 9 is electrically connected with the oil supply system; the oil distribution passage 4 is provided with a check valve 6, the check valve 6 is arranged between the inlet of the oil distribution passage 4 and the outlet of the temperature control oil passage 8.
[0028] In the embodiment, the oil distribution passage 4 is provided with a pressure gauge 7 for measuring the oil pressure, the pressure gauge 7 is electrically connected with the oil supply system, and the pressure gauge 7 is arranged between the outlet of the temperature control oil passage 8 and the bearing 5.
[0029] In the embodiment, the oil distribution passage 4 and the spray pipe 10 are both provided with a flow meter for measuring the oil amount, the flow meter is electrically connected with the oil supply system, and the flow meter is arranged between the outlet of the temperature control oil passage 8 and the bearing 5.
[0030] In the embodiment, the bearing 5 is provided with a temperature sensor, and the temperature sensor is electrically connected with the oil supply system.
[0031] In this embodiment, the oil supply system further comprises a control module; the control module can collect information of the temperature sensor, the pressure gauge 7, the electromagnetic throttle valve 9 and the flow meter, and can control the oil distribution station A1, the oil distribution station B2 and the electromagnetic throttle valve 9 according to the information received thereby, thereby controlling the oil flow through the oil distribution channel.
[0032] As shown in Figure 2 , a control method of the above oil supply system, the specific control method is as follows:
[0033] Step 1) Before starting the gearbox, the control module performs primary distribution according to the working condition information of the gearbox to be operated;
[0034] Step 2) After the gearbox is operated, the electromagnetic throttle valve 9 is opened to the initial state, and the oil distribution station A1 and the oil distribution station B2 supply oil to the gearbox; wherein the oil distribution station A1 drives the oil to be sent to each bearing 5 on the gearbox through the main oil channel 3 and the oil distribution channel 4, and the oil distribution station B2 drives the oil to be sent to each bearing 5 on the gearbox after passing through the temperature control oil channel 8 and the oil distribution channel 4;
[0035] Step 3) After the gearbox is operated to the rated working condition, when the temperature of each bearing 5 tends to be stable, and the temperature of each bearing 5 is at the highest set temperature, then the control module reduces the opening of the throttle electromagnetic valve corresponding to the low-temperature bearing 5, the control module increases the opening of the throttle electromagnetic valve corresponding to the high-temperature bearing 5, and the temperature difference of each bearing 5 on the gearbox is reduced.
[0036] Further preferably, in the above step 1), the oil amount distributed by the oil distribution station A1 accounts for 70-80% of the total oil amount, and the oil amount distributed by the oil distribution station B2 accounts for 20-30% of the total oil amount.
[0037] Further preferably, in the above step 2), the initial opening of the electromagnetic throttle valve 9 is 1 / 2 of its maximum stroke.
[0038] Further preferably, in the above step 2), if the temperature of a bearing 5 is higher than the set temperature, the opening of the throttle electromagnetic valve corresponding to the bearing 5 is increased. In this way, the oil supply of the bearing 5 by the oil distribution station B2 is increased, which can effectively prevent the bearing 5 from being damaged by high temperature, and control the oil pressure within a specified range.
[0039] Further preferably, in the above step 2), if the temperature of a bearing 5 is higher than the set temperature, and the temperature difference between the bearing 5 and other bearings 5 is large, the opening of the throttle valve corresponding to the bearing 5 is reduced. In this way, the oil supply of the low-temperature bearing 5 by the oil distribution station B2 is reduced, the energy loss is reduced, and the mechanical efficiency is improved.
[0040] Further preferably, the control module records information including the input power of the gearbox, the output power of the gearbox, the temperature of each bearing 5, the oil amount of each bearing 5, the oil injection amount of each gear, the total oil injection amount of the gearbox, and the pressure in each oil distribution passage 4.
[0041] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0042] Although the embodiments of the present application have been shown and described above, it should be understood that the above-described embodiments are exemplary, and should not be construed as limiting the present application, and those of ordinary skill in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application without departing from the principles and spirits of the present application.
Claims
1. An open oil supply system for a gear box, characterized by: The gearbox comprises a box body, a transmission shaft, gears and bearings (5), the gears are installed on the transmission shaft, and the transmission shaft is rotatably installed on the box body through the bearings (5); The oil supply system comprises oil distribution stations A (1), B (2), a main oil channel (3) and a plurality of oil distribution channels (4); the main oil channel (3) is in communication with the oil distribution channels (4), the plurality of oil distribution channels (4) are arranged at the plurality of bearings (5) of the box body, and oil can flow through the bearings (5) through the oil distribution channels (4) and then enter an oil pool (12) at the bottom of the box body; a nozzle for spraying oil on the box gears is further arranged in the box body; The oil distribution station A (1) can drive oil to be distributed to the plurality of bearings (5) on the gearbox through the main oil channel (3) and the plurality of oil distribution channels (4), and the oil distribution station A (1) can drive oil to be sprayed on the gears through the nozzle (10); the oil distribution station B (2) can directly send oil to any one or any plurality of bearings (5) on the gearbox, so as to change the oil supply amount of the specified bearing (5).
2. An open oil supply system for a gear box as claimed in claim 1, characterized in that: An oil return port (11) in communication with the oil pool (12) is arranged on the box body, and the oil distribution stations A (1) and B (2) can extract oil in the box body from the oil return port (11).
3. An open oil supply system for a gear box as claimed in claim 1, wherein: The gearbox further comprises a plurality of temperature control oil channels (8), the plurality of temperature control oil channels (8) correspond to the plurality of oil distribution channels (4) in a one-to-one manner, and the temperature control oil channels (8) are in communication with the oil distribution channels (4); the oil distribution station B (2) can send oil to the oil distribution channels (4) through the temperature control oil channels (8).
4. An open oil supply system for a gear box according to claim 3, characterized in that: An electromagnetic throttle valve (9) is arranged on the temperature control oil channel (8), and the electromagnetic throttle valve (9) is electrically connected with the oil supply system; a check valve (6) is arranged on the oil distribution channel (4) and is arranged between the inlet of the oil distribution channel (4) and the outlet of the temperature control oil channel (8).
5. An open oil supply system for a gear box as claimed in claim 3, wherein: A pressure gauge (7) for measuring oil pressure is arranged on the oil distribution channel (4), the pressure gauge (7) is electrically connected with the oil supply system, and the pressure gauge (7) is arranged between the outlet of the temperature control oil channel (8) and the bearing (5).
6. An open oil supply system for a gear box as claimed in claim 3, wherein: Flowmeters for measuring oil amounts are arranged on the oil distribution channel (4) and the nozzle (10), the flowmeters are electrically connected with the oil supply system, and the flowmeters are arranged between the outlet of the temperature control oil channel (8) and the bearing (5).
7. An open oil supply system for a gear box as claimed in claim 1, wherein: A temperature sensor is arranged on the bearing (5), and the temperature sensor is electrically connected with the oil supply system.
8. An open oil supply system for a gear box as claimed in claim 1, characterized in that: The oil supply system further comprises a control module, and the control module is used for controlling the oil amount flowing through the oil distribution channel (4).