Gearbox lubricating system and gearbox

Abstract

The utility model relates to the technical field of gearbox transmission, in particular to a gearbox lubricating system and a gearbox, which comprises a gear oil pump, an oil inlet of the gear oil pump is used for feeding lubricating oil, an oil outlet of the gear oil pump is connected with a lubricating pipeline used for lubricating parts to be lubricated in the gearbox, and the gear oil pump is arranged in the gearbox. A gear transmission unit meshed with any gear in the gear box is arranged on an input shaft of the gear oil pump, any gear in the gear box is in meshed transmission with the gear transmission unit to serve as a power unit for driving the gear oil pump to work, the power unit does not need to be powered independently, the cost of the lubricating system is reduced, and the service life of the lubricating system is prolonged. The effect of saving cost is achieved; in addition, due to the fact that a traditional driving motor used for driving the gear oil pump is omitted, the gear oil pump can be arranged in the gear box, the boundary dimension of the gear box is reduced, space is saved, and miniaturization of the gear box is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of gear box transmission, in particular to a gear box lubrication system and a gear box. Background Art

[0002] The gearbox is a transmission component, and its lubrication is very important. Among the reasons for gearbox failure, insufficient lubrication is one of the main reasons. Good lubrication can provide adequate protection for gears and bearings. At present, the existing gearbox lubrication system usually includes an oil pump and a power unit. The power unit is used to drive the oil pump to work. The oil inlet of the oil pump is used to take in lubricating oil. The oil outlet of the oil pump is connected to a lubrication pipeline, which is used to lubricate the parts to be lubricated in the gearbox.

[0003] However, the above-mentioned power unit is usually a drive motor, such as a double-pump lubrication device disclosed in a Chinese patent (publication number: CN221003114U), in which the input shaft of the oil pump is connected to the output shaft of the drive motor. If the above-mentioned double-pump lubrication device is used for lubrication of internal parts of the gearbox, due to the influence of the internal working environment of the gearbox, the drive motor can only be hung on the outside of the gearbox, resulting in the oil pump also being hung on the outside of the gearbox with the drive motor, thereby increasing the external dimensions of the gearbox; at the same time, the drive motor needs to be powered separately, resulting in an increase in the cost of the lubrication system. Utility Model Content

[0004] One of the main purposes of the utility model is to provide a gearbox lubrication system and a gearbox, aiming to solve the technical problem that the power unit of the existing gearbox lubrication system is usually a drive motor, which is externally mounted on the outside of the gearbox, resulting in the oil pump being externally mounted on the outside of the gearbox along with the drive motor, increasing the overall dimensions of the gearbox, and at the same time the drive motor needs to be powered separately, resulting in increased costs of the lubrication system.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a gear box lubrication system, including a gear oil pump, wherein the oil inlet of the gear oil pump is used to take in lubricating oil, the oil outlet of the gear oil pump is connected to a lubrication pipeline for lubricating the parts to be lubricated in the gear box, the gear oil pump is arranged in the gear box, and the output shaft of the gear oil pump is provided with a gear transmission unit meshing with any gear in the gear box.

[0006] Furthermore, the gear transmission unit is a transmission gear keyed to an output shaft of the gear oil pump.

[0007] Furthermore, the gear transmission unit is a gear set.

[0008] Furthermore, the gear set includes a first gear and a second gear, the first gear is arranged on the output shaft of the gear oil pump, the second gear is rotatably arranged in the gear box, the second gear is meshed with the first gear, and the second gear is also meshed with any gear in the gear box.

[0009] Furthermore, the lubrication pipeline includes a main oil pipe and several branch lubrication pipes, the main oil pipe is connected to the oil outlet of the gear oil pump, the branch lubrication pipes are connected to the main oil pipe, the number of the branch lubrication pipes is the same as the number of parts to be lubricated in the gear box, and each branch lubrication pipe lubricates each part to be lubricated in the gear box.

[0010] Furthermore, the main oil pipe and / or the branch lubrication pipe are made of plastic deformation pipe material.

[0011] The utility model also provides a gear box, comprising the lubrication system of the utility model.

[0012] Furthermore, lubricating oil is stored in the gear box body, and the rotation of the gear transmission unit drives the lubricating oil stored in the gear box body to splash.

[0013] Furthermore, the oil inlet of the gear oil pump is connected to an oil delivery pipe, and the oil delivery pipe extends out of the gear box.

[0014] Furthermore, an oil dipstick for detecting the bottom oil level in the gear box is provided on the box body.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model provides a gear transmission unit meshing with any gear in the gear box on the input shaft of the gear oil pump, and utilizes any gear in the gear box to mesh with the gear transmission unit as a power unit to drive the gear oil pump. The power unit of the utility model does not need to be powered separately, thereby reducing the cost of the lubrication system and achieving the effect of cost saving. In addition, since the traditional driving motor for driving the gear oil pump is omitted, the gear oil pump can be arranged in the gear box, reducing the overall dimensions of the gear box, saving space, and facilitating the miniaturization of the gear box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model embodiment relates to a gear oil pump disposed in a gear box. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of a gearbox according to an embodiment of the utility model;

[0019] Figure 3This is a schematic diagram of the structure of a gear oil pump according to an embodiment of the utility model;

[0020] Figure 4 The utility model embodiment relates to a gear oil pump disposed in a gear box. Figure 2 .

[0021] Reference numerals in the accompanying drawings:

[0022] 1. Gear oil pump; 10. Oil inlet; 11. Oil outlet; 12. Input shaft; 120. Transmission gear; 121. First gear; 122. Second gear; 1220. Rotating shaft; 13. Pump body; 131. Passive gear; 132. Driving gear; 2. Gear box; 20. First transmission shaft; 201. Gear A; 21. Second transmission shaft; 210. Gear B; 3. Lubrication pipeline; 30. Main oil pipe; 31. Branch lubrication pipe. DETAILED DESCRIPTION

[0023] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0024] In the description of the present invention, it should be understood that the terms "width", "up", "down", "front", "back", "top", "bottom", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] Embodiment 1

[0028] Please refer to Figure 1 - Figure 3 The utility model provides a gear box lubrication system, including a gear oil pump 1, which is arranged in a gear box 2. Specifically, the gear oil pump 1 is fixed in the housing of the gear box 2 by bolts; a gear transmission unit meshing with any gear in the gear box 2 is arranged on the output shaft of the gear oil pump 1, and of course, the gear transmission unit is located outside the pump body 13 of the gear oil pump 1; an oil inlet 10 of the gear oil pump 1 is connected to an oil pipeline, which extends out of the outside of the gear box 2 for inletting lubricating oil, and an oil outlet 11 of the gear oil pump 1 is connected to a lubrication pipeline 3, which is used to lubricate the parts to be lubricated in the gear box 2. It can be seen from this that the gearbox lubrication system of the present invention utilizes any gear in the gearbox 2 to mesh with the gear transmission unit as a power unit to drive the gear oil pump 1. Since the power unit does not need to be powered separately, the cost of the lubrication system is reduced, thereby achieving a cost-saving effect. In addition, since the lubrication system of the present invention omits the traditional drive motor used to drive the gear oil pump 1, the gear oil pump 1 can be arranged in the gearbox 2, reducing the overall dimensions of the gearbox 2, saving space, and facilitating the miniaturization of the gearbox 2.

[0029] It should be noted that since the working principle of the gear oil pump 1 is a prior art, it will not be elaborated here. The working principle of the gear oil pump 1 can be simply understood as follows: there are two rotating gears in the pump body 13 of the gear oil pump 1; one is a passive gear 131, and the other is a driving gear 132, both of which are installed in the pump body 13, and the driving gear 132 is fixed on the input shaft 12 of the gear oil pump 1. The two gears in the pump body 13 are meshed with each other, so the working space of the entire pump body 13 is divided into two independent spaces, the one close to the oil inlet 10 of the gear oil pump 1 is the oil suction space, and the one close to the oil outlet 11 of the gear oil pump 1 is the oil discharge space. During the operation of the gear oil pump 1, the rotation and meshing of the gears in the pump body 13 push the liquid from the oil suction space to the oil discharge space, thereby realizing the transportation of the liquid. Specifically, when the gears in the pump body 13 go from meshing to disengagement, a partial vacuum is formed in the oil suction space in the pump body 13, sucking in liquid. The sucked liquid fills each gear space of the gear and is carried to the oil discharge space; when the gears mesh again, the liquid is squeezed out to form a high-pressure liquid, which is then discharged out of the pump through the oil outlet 11 of the gear oil pump 1.

[0030] In this embodiment, refer to Figure 1 and Figure 3 The gear transmission unit is a transmission gear 120 keyed to the output shaft of the gear oil pump 1, that is, the transmission gear 120 is meshed with any gear in the gear box 2 as a power unit to drive the gear oil pump 1. It can be seen that the gear oil pump 1 of this embodiment only needs to install a power input gear on the input shaft 12 of the gear oil pump 1 to realize the driving work of the gear oil pump 1, which greatly saves the cost of the gear box lubrication system, and at the same time, the various gear box lubrication systems are changed from complex external pipeline installation to simple internal installation, which greatly simplifies the gear lubrication system.

[0031] Exemplarily, the transmission gear 120 on the gear oil pump 1 is meshed with the gear A201 on the first transmission shaft 20 of the gear box 2, and the first transmission shaft 20 can be connected to the motor drive outside the gear box 2, so that when the gear box 2 is working, the gear A201 on the first transmission shaft 20 drives the gear B210 and the transmission gear 120 to drive, thereby driving the gear oil pump 1 to work. Of course, in other embodiments, the transmission gear 120 on the gear oil pump 1 can also be meshed with the gear B210 on the second transmission shaft 21 of the gear box 2, and the first transmission shaft 20 can be connected to the motor drive outside the gear box 2, so that when the gear box 2 is working, the gear A201 on the first transmission shaft 20 drives the gear B210 to drive, and the gear B210 drives the transmission gear 120 to drive, thereby driving the gear oil pump 1 to work.

[0032] In this embodiment, refer to Figure 1The lubrication pipeline 3 includes a main oil pipe 30 and a plurality of branch lubrication pipes 31. The main oil pipe 30 is connected to the oil outlet 11 of the gear oil pump 1. The main oil pipe 30 is made of plastic deformation pipe material, which is conducive to the layout of the main oil pipe 30 in the gear box 2. Of course, the main oil pipe 30 can also be fixed on the box wall in the gear box 2. The branch lubrication pipes 31 are connected to the main oil pipe 30. The branch lubrication pipes 31 are made of plastic deformation pipe material, which is conducive to the layout of the branch lubrication pipes 31 in the gear box 2. Of course, the branch lubrication pipes 31 can also be fixed on the box wall in the gear box 2. Among them, the number of branch lubrication pipes 31 is the same as the number of parts to be lubricated in the gear box 2, and each branch lubrication pipe 31 lubricates each part to be lubricated in the gear box 2. It can be seen that the lubricating oil discharged from the gear oil pump 1 enters each branch lubrication pipe 31 through the main oil pipe 30, thereby forcibly lubricating the parts to be lubricated in the gear box 2.

[0033] The utility model also provides a gearbox, including the gearbox lubrication system described in the above embodiment. Lubricating oil is stored in the gearbox 2, and a dipstick (not shown) for detecting the bottom oil level in the gearbox 2 is provided on the gearbox 2. The oil storage in the gearbox 2 is detected by the dipstick. The rotation of the gear transmission unit drives the lubricating oil stored in the gearbox 2 to splash, that is, the parts in the gearbox 2 are further lubricated by splash lubrication.

[0034] In summary, the gearbox lubrication system and gearbox 2 of the present invention adopt a combination of forced lubrication and splash lubrication to lubricate the parts inside the gearbox 2, so that the parts inside the gearbox 2 are more fully lubricated, thereby extending the service life of the gearbox 2.

[0035] Embodiment 2

[0036] The difference between this embodiment and the first embodiment is that the structure of the gear transmission unit is different.

[0037] In this embodiment, the gear transmission unit is a gear set.

[0038] Please refer to Figure 4The gear set includes a first gear 121 and a second gear 122. The first gear 121 is arranged on the input shaft 12 of the gear oil pump 1. The first gear 121 is keyed to the input shaft 12 of the gear oil pump 1. Of course, the first gear 121 is located outside the pump body 13 of the gear oil pump 1. The second gear 122 is rotatably arranged in the gear box 2. The second gear 122 is keyed to the rotating shaft 1220 rotatably arranged in the gear box 2. The opposite ends of the rotating shaft 1220 are rotatably arranged in the gear box 2 through bearings. The second gear 122 is meshed with the first gear 121, and the second gear 122 is also meshed with any gear in the gear box 2. Exemplarily, the second gear 122 is meshed with the gear A201 on the first transmission shaft 20 in the gear box 2. In this way, any gear in the gear box 2 can also be used to mesh with the gear transmission unit as a power unit to drive the gear oil pump 1 to work, which reduces the cost of the lubrication system, reduces the size of the gear box 2, saves space, and is conducive to the miniaturization of the gear box 2.

[0039] It should be noted that the gear set of this embodiment is not limited to the above-mentioned first gear 121 and second gear 122. In other embodiments, the gears in the gear set may also be provided with three or four gears, which is not limited here. Therefore, for the technicians of this invention, by reasonably changing the structure of the gear set, it should also fall within the protection scope of the present invention.

[0040] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A gearbox lubrication system, comprising a gear oil pump, wherein the oil inlet of the gear oil pump is used to take in lubricating oil, and the oil outlet of the gear oil pump is connected to a lubrication pipeline for lubricating parts to be lubricated in the gearbox, characterized in that: The gear oil pump is arranged in the gear box, and a gear transmission unit meshing with any gear in the gear box is arranged on the input shaft of the gear oil pump; wherein the lubrication pipeline includes a main oil pipe and a plurality of branch lubrication pipes, the main oil pipe is connected with the oil outlet of the gear oil pump, the branch lubrication pipes are connected with the main oil pipe, the number of the branch lubrication pipes is the same as the number of parts to be lubricated in the gear box, each of the branch lubrication pipes lubricates each part to be lubricated in the gear box respectively, and the gear transmission unit is a transmission gear keyed to the output shaft of the gear oil pump; or, the gear transmission unit is a gear set, and the gear set includes a first gear and a second gear, the first gear is arranged on the output shaft of the gear oil pump, the second gear is rotatably arranged in the gear box, the second gear is meshed with the first gear, and the second gear is also meshed with any gear in the gear box.

2. The gearbox lubrication system according to claim 1, characterized in that: The main oil pipe and / or the branch lubrication pipe are made of plastic deformation pipe material.

3. A gear box, characterized in that: Comprising the lubrication system of claim 1.

4. The gearbox according to claim 3, characterized in that: Lubricating oil is stored in the gear box, and the rotation of the gear transmission unit drives the lubricating oil stored in the gear box to splash.

5. The gearbox according to claim 4, characterized in that: The oil inlet of the gear oil pump is connected with an oil delivery pipe, and the oil delivery pipe extends out of the gear box.

6. The gearbox according to claim 4, characterized in that: The gear box body is provided with an oil dipstick for detecting the bottom oil level in the box body.

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