Active lubricating device of speed reducer assembly with differential function

Abstract

The utility model discloses an active lubricating device of a speed reducer assembly with a differential function, which comprises an oil pump, the oil pump is mounted at the bottom of a differential shell mounting bearing seat through an oil pump mounting frame, and the oil pump is connected with an oil pump pipe. The oil pumping pipe extends from the bottom of the speed reducer shell to the bottom of a bearing connected with the transmission shaft and installed on the top of the speed reducer shell, an oil pump driving gear is installed on the oil pump, and the oil pump driving gear is meshed with a driving gear installed on the differential mechanism shell. According to the active lubricating device of the speed reducer assembly with the differential function, the engine oil pump is adopted for actively supplying oil for lubrication, the engine oil pump is driven by the gear installed on the differential mechanism shell, extra power does not need to be provided, use is safe and reliable, the maintenance cost is reduced, and disassembly, assembly and maintenance are convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of reducer lubrication, specifically an active lubrication device for a reducer assembly with differential function. Background Technology

[0002] With the development of science and technology and the increasing economic strength of my country, agriculture has also developed rapidly. Various agricultural machinery products are now used in countless households. Their development saves labor and greatly improves labor efficiency compared to traditional farmland tillage methods, thus promoting agricultural development. To improve tillage efficiency, reduce operational labor intensity, and enhance versatility, the applicant has developed a self-propelled tiller (Chinese Patent: A Rear-Mounted Engine Front-Wheel Drive Tiller, Application No.: 202210281861.6). To achieve the tiller's traversable capability, a drive axle with a differential lock structure is designed and installed on the tiller (Chinese Patent: A Drive Axle with a Differential Lock Structure, Application No.: 202322788712.1). Because the reducer assembly with differential in this drive axle uses top-mounted power input and is positioned above the axle, splashed lubricating oil has difficulty reaching the bearings connecting the reducer assembly to the drive shaft. Traditionally, grease is applied to the bearings to improve lubrication. While grease provides some lubrication, the harsh working environment of the tiller and the vertical mounting of the reducer assembly easily lead to poor lubrication. This causes wear, erosion, or even seizure of the bearings connecting the drive shaft, affecting service life and increasing maintenance costs. Therefore, an active lubrication device for the reducer assembly with differential function needs to be designed. Summary of the Invention

[0003] The purpose of this utility model is to address the problems existing in the prior art by providing an active lubrication device for a reducer assembly with differential function. This active lubrication device for the reducer assembly with differential function uses an oil pump for active oil supply and lubrication. The oil pump is driven by gears mounted on the differential housing, which does not require additional power. It is safe and reliable to use and reduces maintenance costs.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An active lubrication device for a reducer assembly with differential function includes an oil pump. The oil pump is mounted on the bottom of a bearing seat on the differential housing via an oil pump mounting bracket. The oil pump is connected to an oil pump pipe that extends from the bottom of the reducer housing to the bottom of a bearing on the top of the reducer housing that connects to the drive shaft. An oil pump drive gear is mounted on the oil pump, and this drive gear meshes with a drive gear mounted on the differential housing. The oil pump is a Jinzhan 200 water-cooled oil pump, which can be purchased commercially from Chongqing Zongshen Power Machinery Co., Ltd.

[0006] A further preferred embodiment: the oil pump is mounted on the bottom of the differential housing mounting bearing seat on the side away from the driven bevel gear via an oil pump mounting bracket. This side of the differential housing mounting bearing seat has ample mounting space.

[0007] A further preferred embodiment: The oil pump mounting bracket includes a vertical plate that is wider at the top and narrower at the bottom. A connecting lug is horizontally connected to each end of the top of the vertical plate on the same side. Mounting bracket bolt holes are correspondingly provided on the bottom of both the connecting lugs and the differential housing mounting bearing seat. The connecting lugs are fixedly connected to the differential housing mounting bearing seat via mounting bracket bolts. The vertical plate has mounting holes for the oil pump and connecting holes for connection to the oil pump seat using oil pump mounting bolts. The horizontal connection of connecting lugs at each end of the top of the vertical plate allows for a detachable and fixed connection between the vertical plate and the bottom of the differential housing mounting bearing seat without affecting the meshing and rotation of the oil pump drive gear and the driving gear.

[0008] The active lubrication device of this differential reducer assembly uses an oil pump for active oil supply and lubrication. The oil pump is driven by gears mounted on the differential housing, requiring no additional power. It is safe and reliable to use, reduces maintenance costs, and is easy to disassemble and maintain. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the mounting plan of the active lubrication device for a reducer assembly with differential function;

[0010] Figure 2 yes Figure 1 A diagram showing the view from below;

[0011] Figure 3 This is a three-dimensional structural diagram of the installation of the active lubrication device for the reducer assembly with differential function;

[0012] Figure 4 This is an exploded view of the active lubrication device for the reducer assembly with differential function;

[0013] The names corresponding to the serial numbers in the figure are:

[0014] 1. Oil pump mounting bracket; 2. Oil pump; 3. Differential housing mounting bearing seat; 4. Differential housing; 5. Differential housing mounting bearing; 6. Reducer housing; 7. Connecting drive shaft; 8. Driven bevel gear; 9. Mounting bracket bolts; 10. Oil pump mounting bolts; 11. Oil pump drive gear; 12. Pump pipe; 13. Drive gear; 14. Connecting lug; 15. Vertical plate; 16. Connecting hole; 17. Mounting hole. Detailed Implementation

[0015] To provide a more detailed description of this utility model, the following description, in conjunction with the embodiments and accompanying drawings, will further illustrate this utility model. Example

[0016] An active lubrication device for a reducer assembly with differential function includes an oil pump 2, which is mounted on the bottom of the differential housing bearing seat 3 via an oil pump mounting bracket 1. The oil pump 2 is connected to an oil pump pipe 12, which extends from the bottom of the reducer housing 6 to the bottom of the bearing at the top of the reducer housing 6 that connects to the drive shaft 7. An oil pump drive gear 11 is mounted on the oil pump 2, and the oil pump drive gear 11 meshes with a drive gear 13 mounted on the differential housing 4.

[0017] The oil pump 2 is mounted on the bottom of the differential housing mounting bearing seat 3, which is located away from the driven bevel gear 8, via the oil pump mounting bracket 1.

[0018] The oil pump mounting bracket 1 includes a vertical plate 15 that is larger at the top and smaller at the bottom. A connecting lug 14 is horizontally connected to each end of the top of the vertical plate 15 on the same side. The bottom of the connecting lug 14 and the differential housing mounting bearing seat 3 are respectively provided with mounting bracket bolt holes. The connecting lug 14 is fixedly connected to the differential housing mounting bearing seat 3 by mounting bracket bolts 9. The vertical plate 15 is provided with a mounting hole 17 for the oil pump 2 to pass through and a connecting hole 16 for connecting with the seat of the oil pump 2 by oil pump mounting bolts 10.

[0019] The differential-equipped reducer assembly includes a reducer housing 6 and a differential. The left and right ends of the differential housing 4 are connected to the reducer housing 6 via differential housing mounting bearing seats 3 and differential housing mounting bearings 5, respectively. During installation, the differential extends into the axle housing, and the reducer housing 6 is sealed to the axle housing. The left and right half-shafts of the axle are respectively installed in the axle housings on the left and right sides of the differential. The left and right half-shafts are used to connect to the drive wheels. The left and right half-shafts mesh with the differential planetary gears of the differential via corresponding left and right half-shaft gears. The driving pinion on the connecting drive shaft 7 meshes with the driven bevel gear 8 of the differential. The driven bevel gear 8 is mounted on the differential housing 4, specifically on the right side of the housing. Power is transmitted to the driven bevel gear 8 via the connecting drive shaft 7 and the driving pinion 8, thus entering the rear axle. When the driven bevel gear 8 rotates, the differential housing 4 also rotates, thereby driving the differential planetary gears to rotate via the differential planetary gear mounting shaft mounted on the housing 4. This, in turn, drives the left and right half-shaft gears to rotate the corresponding left and right half-shafts of the axle, completing the power transmission. When the differential housing 4 rotates, it drives the driving gear 13, which in turn drives the oil pump drive gear 11, thereby driving the oil pump 2 to operate. This pumps lubricating oil upwards through the pump pipe 12 to lubricate the upper components. The lubricating oil will fall off under gravity and be pumped upwards again.

[0020] The above description is not intended to limit the present utility model, nor is the present utility model limited to the above examples. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should be protected by the present utility model.

Claims

1. A device for active lubrication of a differential function reducer assembly of a vehicle, comprising an oil pump (2), characterized in that: The oil pump (2) is mounted on the bottom of the differential housing bearing seat (3) via the oil pump mounting bracket (1). The oil pump (2) is connected to the oil pump pipe (12), which extends from the bottom of the reducer housing (6) to the bottom of the bearing that connects the drive shaft (7) at the top of the reducer housing (6). An oil pump drive gear (11) is mounted on the oil pump (2), and the oil pump drive gear (11) meshes with the drive gear (13) mounted on the differential housing (4).

2. The active lubrication device of a differential-capable speed-reducer assembly of claim 1, wherein: The oil pump (2) is mounted on the bottom of the differential housing mounting bearing seat (3) on the side away from the driven bevel gear (8) via the oil pump mounting bracket (1).

3. A device for the active lubrication of a drive of a differential function reducer assembly according to claim 1 or 2, characterized in that: The oil pump mounting bracket (1) includes a vertical plate (15) that is larger at the top and smaller at the bottom. A connecting ear (14) is horizontally connected to each end of the top of the vertical plate (15) on the same side. The bottom of the connecting ear (14) and the differential housing mounting bearing seat (3) are respectively provided with mounting bracket bolt holes. The connecting ear (14) is fixedly connected to the differential housing mounting bearing seat (3) by mounting bracket bolts (9). The vertical plate (15) is provided with a mounting hole (17) for passing through the oil pump (2) and a connecting hole (16) for connecting with the seat of the oil pump (2) by oil pump mounting bolts (10).

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