Lubricating system capable of achieving automatic pressurization

Abstract

The utility model relates to the technical field of lubrication, in particular to a lubrication system capable of realizing automatic pressurization, which is applied to wheel edge lubrication so as to realize lubrication of a left wheel edge lubrication point and a right wheel edge lubrication point, and comprises a lubrication pump and a lubrication oil tank. According to the utility model, the safety valve (with the preset lubricating pressure of 1MPa), namely, the two-position two-way valve I acts (namely is disconnected) at the upper position under the working condition that a lubricating point is not blocked, so that a lubricating system runs; when faults such as lubrication point blockage occur in the system, it is ensured that the lubrication pressure does not exceed 1 Mpa, or quantitative and constant-pressure lubrication needs to be carried out under a certain special working condition, and at the moment, the lubrication pressure can be preset by changing the safety valve; when the lubricating system breaks down and needs to be in a no-load state, the first two-position two-way valve acts at the lower position, and lubricating oil can directly flow back to the lubricating oil tank from the safety valve through the first two-position two-way valve; when the two-position two-way valve I is switched to act at the upper position, the lubricating system can work normally.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel edge lubrication, in particular to a lubrication system capable of realizing automatic pressurization. Background Art

[0002] The lubrication system is a vital system used to ensure smooth operation of relatively moving parts in mechanical equipment, reduce wear, and extend the life of the equipment. In wheel-side lubrication, it is necessary to set up lubrication points on the left and right sides of the wheel-side reducer. Typically, these points are located on the left and right sides of the wheel-side reducer. These points ensure that the lubricant reaches the specific locations where lubrication is required, thereby improving transmission efficiency and extending the service life of the components. The purpose of wheel-side lubrication is to reduce friction and wear between gears, improve transmission efficiency, reduce noise, and extend the service life of the wheel-side reducer. Lubricant is injected between two solid parts, maintaining an oil film between the components to minimize friction and wear.

[0003] However, the existing lubrication system does not have the function of automatic pressure regulation and automatic return of lubricating oil when lubricating the wheel side. As a result, when the left wheel side lubrication point or the right wheel side lubrication point is clogged, the lubricating oil will accumulate inside the lubrication system, causing the lubrication pressure inside the lubrication system to increase. If the pressure cannot be regulated or the hydraulic oil cannot be returned in time, the oil pipe will burst or the lubrication pump will be damaged. Utility Model Content

[0004] In view of this, the purpose of the present invention is to propose a lubrication system that can realize automatic pressurization, so as to solve the problem that the existing lubrication system cannot automatically adjust the pressure or return the lubricating oil when the wheel lubrication point is blocked during wheel lubrication, which may easily lead to oil pipe rupture or lubrication pump damage.

[0005] Based on the above purpose, the utility model provides a lubrication system that can realize automatic pressurization, which is applied to wheel side lubrication to realize lubrication of the left wheel side lubrication point and the right wheel side lubrication point, including a lubrication pump and a lubrication oil tank, the outlet end of the lubrication pump is connected to a lubrication distributor through an oil pipe 1, and the lubrication distributor is provided with a plurality of left lubrication oil outlets and a right lubrication oil outlet, and the left lubrication oil outlet and the right lubrication oil outlet are respectively connected to a left lubrication pipe and a right lubrication pipe, and the left lubrication pipe is connected to the left wheel side lubrication point through a branch pipe 1, and the right lubrication pipe is connected to the right wheel side lubrication point through a branch pipe 2;

[0006] The outlet end of the lubrication pump is provided with a pressure gauge and a safety valve, and the preset pressure of the safety valve is adjustable. The pressure gauge and the safety valve are installed on oil pipe 1. The pilot outlet of the safety valve is connected to a two-position two-way valve 1, and the outlet end of the two-position two-way valve 1 is connected to the lubricating oil tank through oil pipe 2. The pressure relief port on the safety valve is connected to oil pipe 2 through oil pipe 3.

[0007] Preferably, both branch pipe one and branch pipe two are provided with an electronically controlled throttle valve, which is used to control the flow rate entering the left wheel side lubrication point and the right wheel side lubrication point, and a pressure regulating spring is provided at the outlet of the electronically controlled throttle valve on branch pipe two.

[0008] Preferably, a two-position two-way valve 2 is provided on both the left lubrication pipe and the right lubrication pipe.

[0009] Preferably, the initial preset lubrication pressure of the safety valve is 1 MPa, that is, under the working condition that the left wheel side lubrication point and the right wheel side lubrication point are not blocked, the two-position two-way valve one acts in the upper position, and the two-position two-way valve two acts in the lower position, and the left wheel side lubrication point and the right wheel side lubrication point are lubricated with the cooperation of the branch pipe one and the branch pipe two.

[0010] Preferably, the safety valve is an electrically controlled safety valve, which can achieve pressure changes through electrical control. When the left wheel side lubrication point or the right wheel side lubrication point requires forced lubrication, the electrically controlled throttle valve on the left wheel side lubrication point or the right wheel side lubrication point is opened to control the lubrication speed, and the pressure setting of the safety valve is increased through electrical control.

[0011] Preferably, a one-way valve 1 is provided between the lubrication pump and the safety valve, and the one-way valve 1 is installed on the oil pipe 1. The one-way valve 1 is used to prevent the safety valve from generating backflow or turbulence to the lubrication pump during stable lubrication.

[0012] Preferably, an oil pipe four is connected between the lubricating oil tank and the lubricating distributor, and a one-way valve two is provided on the oil pipe four.

[0013] The beneficial effects of the utility model are as follows:

[0014] The preset lubrication pressure of the safety valve is set to 1MPa. When the left and right wheel side lubrication points are blocked and the blockage reaches the preset 1MPa of the safety valve, the lubricating oil pumped out by the lubrication pump will pass through the pressure relief port on the safety valve and directly unload and return to the lubricating oil tank, avoiding oil pipe rupture or damage to the lubrication pump.

[0015] Through the setting of two-position two-way valve one, when the lubrication system fails and needs to be unloaded, the two-position two-way valve will be actuated in the down position (two-position two-way valve one is connected), and the lubricating oil can flow directly from the safety valve to the lubricating oil tank through the two-position two-way valve one. Then the two-position two-way valve one is switched to the up position (two-position two-way valve one is disconnected), and the lubrication system can work normally.

[0016] 3. The pressure gauge and the safety valve are set as an electronically controlled safety valve. When a left wheel side lubrication point or a right wheel side lubrication point is blocked and forced lubrication is required, the electronically controlled throttle valve on the left wheel side lubrication point or the right wheel side lubrication point is opened to control the lubrication speed, and the pressure setting of the safety valve is increased through electronic control. Because at this time the safety valve, the left wheel side lubrication point or the right wheel side lubrication point requires a greater lubrication pressure shock to flush the blockage. According to the weakest pressure point of the system, the pressure cannot rise indefinitely. The maximum setting position of this application is 2MPa. Subsequently, the lubrication pump increases the pump oil volume to force the blocked lubrication point to be flushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.

[0019] Figure 2 This is an enlarged view of the structure at point A of an embodiment of the present utility model.

[0020] In the figure: 1. Lubrication pump; 2. Lubrication oil tank; 3. Lubrication distributor; 4. Left lubrication pipe; 5. Right lubrication pipe; 6. Pressure gauge; 7. One-way valve 1; 8. Oil pipe 4; 9. One-way valve 2; 10. Safety valve; 11. Two-position two-way valve 1; 12. Oil pipe 2; 13. Oil pipe 3; 14. Pressure regulating spring; 15. Two-position two-way valve 2; 16. Electric throttle valve; 17. Left wheel side lubrication point; 18. Right wheel side lubrication point. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0022] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] like Figure 1 、 Figure 2 As shown, a lubrication system capable of realizing automatic pressurization is applied to wheel-side lubrication to realize lubrication of the left wheel-side lubrication point 17 and the right wheel-side lubrication point 18, comprising a lubrication pump 1 and a lubrication oil tank 2, wherein the lubrication pump 1 is used to pump out the lubricating oil from the lubrication oil tank 2, and further comprising a motor M and a clutch. The speed increase or speed decrease of the motor increases or decreases the flow output, while the connection or disconnection of the clutch opens or closes the lubrication system, which forms safety redundancy with the safety valve 10 and the two-position two-way valve. The lubrication pump 1 can pump out the lubricating oil from the lubrication oil tank, and the outlet end of the lubrication pump 1 is connected to a lubrication distributor 3 through an oil pipe 1. The lubrication distributor 3 is provided with a plurality of left lubricating oil outlets and right lubricating oil outlets, and the left lubricating oil outlet and the right lubricating oil outlet are respectively connected to the left Side lubrication pipe 4 and right lubrication pipe 5, and the left lubrication pipe 4 is connected to the left wheel side lubrication point 17 through branch pipe 1, and the right lubrication pipe 5 is connected to the right wheel side lubrication point 18 through branch pipe 2. The left wheel side lubrication point 17 includes lubrication point 1, lubrication point 2, lubrication point 3 and lubrication point 4, and the right wheel side lubrication point 18 includes lubrication point 5, lubrication point 6, lubrication point 7 and lubrication point 8; the outlet end of the lubrication pump 1 is provided with a pressure gauge 6 and a safety valve 10, and the preset pressure of the safety valve 10 is adjustable. The pressure gauge 6 and the safety valve 10 are installed on the oil pipe 1, and the pilot outlet of the safety valve 10 is connected to the two-position two-way valve 11, and the outlet end of the two-position two-way valve 11 is connected to the lubricating oil tank 2 through the oil pipe 2 12, and the pressure relief port on the safety valve 10 is connected to the oil pipe 2 12 through the oil pipe 3 13.

[0024] Through the setting of the two-position two-way valve 11, when the system fails and the lubrication pump 1 is working normally, but there is no need to lubricate the left wheel side lubrication point 17 and the right wheel side lubrication point 18, the lubrication system needs to be unloaded, and the two-position two-way valve 11 is moved to the lower position, that is, the two-position two-way valve 11 is connected, and the lubricating oil can directly flow back from the safety valve 10 to the lubricating oil tank 2 through the two-position two-way valve 11. Then the two-position two-way valve 11 is moved to the upper position (that is, the two-position two-way valve 11 is disconnected), and the lubrication system can work normally.

[0025] In a preferred embodiment of the present invention, an electrically controlled throttle valve 16 is provided on both branch pipe 1 and branch pipe 2. The electrically controlled throttle valve 16 is used to control the flow rate and flow velocity entering the left wheel side lubrication point 17 and the right wheel side lubrication point 18, and a pressure regulating spring 14 is provided at the outlet of the electrically controlled throttle valve 16 on branch pipe 2. Through the setting of the pressure regulating spring 14, the lubrication effect under a certain pressure can be guaranteed to prevent the lubrication from flowing back.

[0026] In another preferred embodiment of the present invention, a two-position two-way valve 15 is provided on both the left lubrication pipe 4 and the right lubrication pipe 5. The initial preset lubrication pressure of the safety valve 10 is 1 MPa. That is, under the working conditions that the left wheel side lubrication point 17 and the right wheel side lubrication point 18 are not blocked, the two-position two-way valve 11 is in the upper position (that is, the two-position two-way valve 11 is disconnected). Figure 1 The two-position two-way valve 11 is in the disconnected state), the two-position two-way valve 2 15 is in the lower position (that is, the two-position two-way valve 2 15 is connected, Figure 2 The two-position two-way valve 2 15 is in the lower action connection state), and the left wheel side lubrication point 17 and the right wheel side lubrication point 18 are lubricated in cooperation with the branch pipe 1 and the branch pipe 2.

[0027] When the lubrication system of the vehicle is working, the lubricating oil enters the lubrication distributor 3 through the lubrication pump 1 and then the two-position two-way valve 2 15 is actuated in the lower position. The oil can enter the branch pipe 1 and the branch pipe through the left lubrication pipe or the right lubrication pipe, thereby lubricating the left lubrication point or the right lubrication point. The flow rate and lubrication speed entering the lubrication point can be controlled by the electronically controlled throttle valve 16.

[0028] The safety valve 10 is an electrically controlled safety valve, which can achieve pressure changes through electrical control. When the left wheel side lubrication point 17 or the right wheel side lubrication point 18 requires forced lubrication, the electrically controlled throttle valve 16 on the left wheel side lubrication point 17 or the right wheel side lubrication point 18 is opened to control the lubrication speed, and the pressure setting of the safety valve 10 is increased through electrical control, because at this time the safety valve, the left wheel side lubrication point or the right wheel side lubrication point requires a greater lubrication pressure shock to flush the blockage. According to the weakest pressure point of the system, the pressure cannot rise indefinitely. The highest setting position of this application is 2MPa. Subsequently, the lubrication pump 1 increases the pump oil volume to force the blocked lubrication point to be flushed.

[0029] In addition, when the system encounters faults such as lubrication point blockage, ensuring that the lubrication pressure does not exceed 1Mpa, or when quantitative and constant pressure lubrication is required for certain special working conditions, this can be achieved by changing the preset lubrication pressure of the safety valve.

[0030] In another preferred embodiment of the present invention, a one-way valve 7 is provided between the lubrication pump 1 and the safety valve 10. The one-way valve 7 is installed on the oil delivery pipe. The one-way valve 7 is used to prevent the safety valve 10 from generating backflow or turbulence to the lubrication pump 1 during stable lubrication.

[0031] It should be noted that an oil pipe 4 8 is connected between the lubricating oil tank 2 and the lubricating distributor 3, and a one-way valve 2 9 is provided on the oil pipe 4 8.

[0032] When all lubrication points (lubrication point 17 on the left wheel side and lubrication point 18 on the right wheel side) are fully opened, a negative pressure oil suction state will occur under extreme working conditions. When the lubrication pump 1 is temporarily unable to meet the lubrication requirements, the lubrication needs of all points can be directly replenished to the lubrication distributor 3 through the one-way valve 2 9 to meet the high-flow lubrication requirements of the load and further protect the lubrication system.

[0033] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0034] The embodiments of the present invention are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lubrication system capable of automatically pressurizing, used for wheel lubrication, to lubricate a left wheel lubrication point (17) and a right wheel lubrication point (18), comprising a lubrication pump (1) and a lubricating oil tank (2), characterized in that: The outlet end of the lubricating pump (1) is connected to a lubricating distributor (3) via an oil pipe 1. The lubricating distributor (3) is provided with a plurality of left lubricating oil outlets and a right lubricating oil outlet. The left lubricating oil outlet and the right lubricating oil outlet are respectively connected to a left lubricating pipe (4) and a right lubricating pipe (5). The left lubricating pipe (4) is connected to a left wheel side lubricating point (17) via a branch pipe 1, and the right lubricating pipe (5) is connected to a right wheel side lubricating point (18) via a branch pipe 2. The outlet of the sliding pump (1) is provided with a pressure gauge (6) and a safety valve (10), and the preset pressure of the safety valve (10) is adjustable. The pressure gauge (6) and the safety valve (10) are installed on the oil pipe (1), the pilot outlet of the safety valve (10) is connected to the two-position two-way valve (11), and the outlet end of the two-position two-way valve (11) is connected to the lubricating oil tank (2) through the oil pipe (12), and the pressure relief port on the safety valve (10) is connected to the oil pipe (12) through the oil pipe (13).

2. A lubrication system capable of automatically pressurizing according to claim 1, characterized in that: Both the branch pipe 1 and the branch pipe 2 are provided with an electric-controlled throttle valve (16), which is used to control the flow rate into the left wheel side lubrication point (17) and the right wheel side lubrication point (18), and a pressure regulating spring (14) is provided at the outlet of the electric-controlled throttle valve (16) on the branch pipe 2.

3. The lubrication system capable of automatically pressurizing according to claim 2, characterized in that: The left lubrication pipe (4) and the right lubrication pipe (5) are both provided with a two-position two-way valve 2 (15).

4. The lubrication system capable of realizing automatic pressurization according to claim 3, characterized in that: The initial preset lubrication pressure of the safety valve (10) is 1 MPa, that is, under the working condition that the left wheel side lubrication point (17) and the right wheel side lubrication point (18) are not blocked, the two-position two-way valve 1 (11) is in the upper position and lubricates the left wheel side lubrication point (17) and the right wheel side lubrication point (18) in cooperation with the branch pipe 1 and the branch pipe 2.

5. The lubrication system capable of realizing automatic pressurization according to claim 4, characterized in that: The safety valve (10) is an electrically controlled safety valve. The safety valve (10) can achieve pressure changes through electrical control. When the left wheel side lubrication point (17) or the right wheel side lubrication point (18) requires forced lubrication, the electrically controlled throttle valve (16) on the left wheel side lubrication point (17) or the right wheel side lubrication point (18) is opened to control the lubrication speed, and the pressure setting of the safety valve (10) is increased through electrical control.

6. The lubrication system capable of automatically pressurizing according to claim 1, characterized in that: A one-way valve (7) is provided between the lubrication pump (1) and the safety valve (10). The one-way valve (7) is installed on the oil pipe (1). The one-way valve (7) is used to prevent the safety valve (10) from generating backflow or turbulence to the lubrication pump (1) during the stable lubrication process.

7. The lubrication system capable of automatically pressurizing according to claim 1, characterized in that: An oil pipe four (8) is connected between the lubricating oil tank (2) and the lubricating distributor (3), and a one-way valve two (9) is provided on the oil pipe four (8).

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