Lower end structure of rear shell of new energy reduction gearbox of mine truck

Abstract

A mine truck new energy reduction gearbox rear shell lower end structure comprises an oil storage shell, a dustproof cover, a suspension boss and an oil pump, the oil storage shell is arranged at the lower end of a rear shell, and the oil storage shell and the rear shell are seamlessly connected into a whole; a suspension boss and a dustproof cover are arranged at the rear end of the oil storage shell, and the dustproof cover surrounds the outer side of the suspension boss; the oil pump is fixedly connected to the inner side of the oil storage shell, and an oil inlet penetrating through the suspension boss and the oil storage shell is formed in the suspension boss. An oil pan at the lower end of an original rear shell is removed, the distance between the bottom of the rear shell of the reduction gearbox and the ground is increased, and therefore collision between the reduction gearbox and the ground can be reduced when a mine truck new energy vehicle is under special working conditions such as downhill and bumpy road sections. By improving the structure of the rear shell, adjusting the installation position of the oil pump and changing the structure of the lower end of the rear shell, it is ensured that the oil storage liquid level is not lower than an oil outlet of the oil pump in a downhill road section, and the flowability of lubricating oil in the rear shell is improved. Therefore, it is ensured that the mine truck new energy vehicle can stably and normally work under some special working conditions.

Description

Technical Field

[0001] The utility model relates to a speed reducer for a new energy mining truck, and particularly to a structure at the lower end of the rear housing of a speed reducer. Background Art

[0002] At present, an oil pan is arranged at the lower end of the speed reducer of a new energy mining truck. The oil pan structure of the speed reducer is an important system structure for realizing the storage of lubricating oil, temperature reduction, noise reduction and dust prevention. The rationality of the oil pan structure directly affects the lubrication effect of the box body, and further affects the reliability and service life of the speed reducer. For the speed reducer of a new energy mining truck, which is applicable to the speed reducer of a heavy vehicle, the requirements for lubrication and applicable working conditions are higher.

[0003] At present, the oil pump of the speed reducer of a new energy mining truck is installed above the oil pan. Since there are no protection measures such as a baffle at the lower part of the whole vehicle. Therefore, in the working conditions of going downhill or bumpy roads, the bottom of the oil pan is easy to collide with the ground. And in the working condition of going downhill, the oil storage liquid level is lower than the oil pump, which directly affects the working efficiency of the oil pump. In this working condition, it is very easy for particulate matters such as accumulated debris to enter the speed reducer, which affects the normal operation inside the speed reducer and reduces the service life of the speed reducer.

[0004] Therefore, how to change the structure at the lower end of the speed reducer of a new energy mining truck so that the new energy mining truck can reduce the collision between the lower end of the speed reducer and the ground on bumpy roads, and still ensure that the oil storage liquid level is not lower than the oil outlet of the oil pump on downhill roads, without affecting the working efficiency of the oil pump, still needs further research. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is: how to make the new energy mining truck reduce the collision between the speed reducer and the ground under special working conditions such as going downhill and bumpy roads, and ensure that the oil storage liquid level is not lower than the electric oil pump, so as to ensure the stable and normal operation of the vehicle.

[0006] In view of the above problems, the technical solution proposed by the utility model is: a structure at the lower end of the rear housing of a new energy mining truck speed reducer, including an oil storage shell, a dust-proof cover, a suspension boss and an oil pump. The oil storage shell is arranged at the lower end of the rear housing, and the oil storage shell is seamlessly connected with the rear housing to form a whole; a suspension boss and a dust-proof cover are arranged at the rear end of the oil storage shell, and the dust-proof cover surrounds the outside of the suspension boss; the oil pump is fixedly connected to the inside of the oil storage shell, and an oil inlet communicating with the suspension boss and the oil storage shell is opened on the suspension boss.

[0007] Preferably, an auxiliary oil inlet communicating with the suspension boss is also opened on one side of the suspension boss, and the auxiliary oil inlet is communicated with the oil inlet.

[0008] Preferably, a mounting seat is integrally formed at the rear end of the oil storage shell, and mounting holes are provided on the mounting seat; lugs are provided on both sides of the dust cover, and mounting holes corresponding to the mounting holes on the mounting seat are formed on the lugs. Bolts pass through the mounting holes on the lugs and are tightened in the mounting holes of the mounting seat, so that the dust cover is fixedly connected to the mounting seat of the oil storage shell.

[0009] Preferably, the dust cover further includes a bottom plate, side plates and connecting blocks. The bottom plate is in the shape of a cuboid, and one side plate is provided on each of the three sides of the bottom plate, and all three side plates are perpendicular to the bottom plate; a gap is left between two adjacent side plates, and the two adjacent side plates are fixedly connected together through the connecting blocks.

[0010] Preferably, through holes are formed on each side plate, and two filter holes are also formed between the bottom plate, the side plates and the connecting blocks.

[0011] Preferably, a partition is further provided inside the rear housing, and the partition is seamlessly connected to the upper end inside the oil storage shell, and the partition and the oil storage shell enclose a cavity; the oil pump is arranged in the cavity, the bottom of the oil pump is integrally formed with the inside of the oil storage shell, and an oil outlet is formed at the front end of the oil pump, and the oil outlet communicates with the cavity.

[0012] The beneficial technical effects of the present utility model are as follows: The oil pan at the lower end of the previous rear housing is removed, and the distance between the bottom of the reduction gearbox rear housing and the ground is increased, so that the mining truck new energy vehicle can reduce the collision between the reduction gearbox and the ground under special working conditions such as downhill and bumpy roads. By improving the structure of the rear housing, adjusting the installation position of the oil pump, and changing the structure of the lower end of the rear housing, it is ensured that the oil storage liquid level is still not lower than the oil outlet of the oil pump on the downhill section, and the fluidity of the lubricating oil in the rear housing is improved. Thereby ensuring that the mining truck new energy vehicle can also work stably and normally under some special working conditions, and saving a certain amount of space for the whole vehicle and reducing the manufacturing cost of the housing parts. A dust cover is arranged at the oil inlet of the oil pump to prevent sundries such as mud and dust debris on the ground from entering the oil inlet from the bottom when the mining truck new energy vehicle is working; at the same time, filter holes are arranged on the dust cover, and the sundries in the dust cover are cleaned out from the filter holes through the vibration of the vehicle itself during work. Description of the Drawings

[0013] Figure 1 Schematic diagram of the overall structure of Embodiment 1 Figure 1 ;

[0014] Figure 2 Schematic diagram of the structure of Embodiment 1 with the dust cover hidden;

[0015] Figure 3 Schematic diagram of the structure of the dust cover in Embodiment 1;

[0016] Figure 4 Schematic diagram of the overall structure of Embodiment 1 Figure 2 ;

[0017] In the figure: rear housing 1, oil storage housing 2, bottom plate 31, side plate 32, lug 33, connecting block 34, filter hole 35, mounting seat 4, suspension boss 5, oil inlet 51, auxiliary oil inlet 52, oil pump 6, oil outlet 61, partition 7. Specific embodiments

[0018] The following further describes the present utility model in conjunction with embodiments and the drawings: Embodiment 1

[0019] As Figure 1 and Figure 2 shown, the structure at the lower end of the rear housing 1 of the new energy reduction gearbox of the mining truck includes an oil storage housing 2, a dust cover, a suspension boss 5, and an oil pump 6. Among them, the oil storage housing 2 is arranged at the lower end of the rear housing 1, and the oil storage housing 2 and the rear housing 1 are integrally formed by a casting process to form a seamless connection as a whole. A mounting seat 4 is integrally formed at the rear end of the oil storage housing 2. Lugs 33 are provided on both sides of the dust cover, and through mounting holes are opened on both the mounting seat 4 and the lugs 33. Bolts pass through the mounting holes on the lugs 33 and are tightened in the mounting holes of the mounting seat 4 to fixedly connect the dust cover to the mounting seat 4 of the oil storage housing 2.

[0020] The suspension boss 5 is integrally formed at the rear end of the oil storage housing 2. An oil inlet 51 that penetrates through the suspension boss 5 and the oil storage housing 2 is opened on the suspension boss 5, and the penetrating direction of the oil inlet 51 is in the front-rear direction. An auxiliary oil inlet 52 that penetrates through the suspension boss 5 is also opened on the upper side of the suspension boss 5, and the auxiliary oil inlet 52 is communicated with the oil inlet 51. The diameter of the oil inlet 51 is much larger than the diameter of the auxiliary oil inlet 52. The oil pump 6 is fixedly connected to the inside of the oil storage housing 2, and the oil inlet 51 is communicated with the oil pump 6. Usually, lubricating oil is input to the oil pump 6 through an oil delivery pipe connected to the oil inlet 51, and at this time the auxiliary oil inlet 52 is closed. However, when working in the wild for a long time, in the case where there is no suitable tooling to input lubricating oil from the oil inlet 51, lubricating oil in a bottle can also be input into the oil pump 6 from the auxiliary oil inlet 52.

[0021] As Figure 1 and Figure 3 ​As shown in the figure, the dust cover includes a bottom plate 31, side plates 32, lugs 33, connecting blocks 34 and filter holes 35. The bottom plate 31 is a rectangular metal thin plate. One side plate 32 is provided on each of the three sides of the bottom plate 31, and the three side plates 32 are bent to be perpendicular to the bottom plate 31. And there is a gap between two adjacent side plates 32, and the two adjacent side plates 32 are fixedly connected together through the connecting block 34. Since when the mining truck new energy vehicle is working, mainly sundries such as mud dust and debris on the ground are easy to enter the oil inlet 51 from the bottom, there are no holes on the bottom plate 31 of the dust cover. The dust cover has an opening at the top, and the oil pipeline can be connected to the oil inlet 51 of the suspension boss 5 from the opening at the top. When the mining truck new energy vehicle is working, it is inevitable that dust, rain, debris and other sundries will enter the dust cover. In this embodiment, two relatively large filter holes 35 are formed by enclosing the bottom plate 31, the side plates 32 and the connecting blocks 34, and through filter holes 35 are formed on each side plate 32, and the sundries in the dust cover are cleaned out from these filter holes 35 through the vibration of the vehicle itself during operation.

[0022] As Figures 1 to 4 shown, a partition 7 is further provided inside the rear housing 1. The partition 7 is seamlessly connected to the upper end inside the oil storage housing 2, and the partition 7 and the oil storage housing 2 enclose a cavity capable of storing oil. The oil pump 6 is arranged in the cavity. The bottom of the oil pump 6 is integrally formed with the inside of the oil storage housing 2. An oil outlet 61 is opened at the bottom of the front end of the oil pump 6, and the oil outlet 61 communicates with the cavity. Previously, since an oil sump for storing oil was also provided below the oil pump 6, when the vehicle was in a downhill or bumpy road condition, the bottom of the oil sump was easily collided with the ground. And in the downhill road condition, it was easy to occur that the oil storage liquid level was lower than the oil outlet 61 of the oil pump 6, which would directly affect the working efficiency of the oil pump 6. In this embodiment, the oil pump 6 is placed at a position close to the bottom of the rear housing 1, and the oil outlet 61 is very close to the inner side of the bottom of the rear housing 1. Even when the vehicle is going downhill, generally the oil storage liquid level will not be lower than the oil outlet 61 of the oil pump 6 under normal conditions, and it will not affect the working efficiency of the oil pump 6 and the lubrication effect inside the vehicle.

[0023] Obviously, without departing from the principle described in the present invention, several improvements or modifications made should be regarded as the protection scope of the present invention.

Claims

1. A lower end structure of the rear housing of a new energy reduction box for a mining truck, characterized in that: It includes an oil storage shell, a dust cover, a suspension boss and an oil pump. The oil storage shell is arranged at the lower end of the rear shell body, and the oil storage shell and the rear shell body are seamlessly connected to form a whole; the rear end of the oil storage shell is provided with a suspension boss and a dust cover, and the dust cover is surrounded by the outer side of the suspension boss; the oil pump is fixedly connected to the inner side of the oil storage shell, and the suspension boss is provided with an oil inlet that passes through the suspension boss and the oil storage shell.

2. The lower end structure of the rear housing of a mining truck new energy reduction box according to claim 1 is characterized in that: An auxiliary oil inlet which passes through the suspension boss is also opened on one side of the suspension boss, and the auxiliary oil inlet is communicated with the oil inlet.

3. The lower end structure of the rear housing of a mining truck new energy reduction box according to claim 2 is characterized in that: A mounting seat is integrally formed at the rear end of the oil storage shell, and a mounting hole is arranged on the mounting seat; ears are arranged on both sides of the dust cover, and mounting holes corresponding to the mounting holes on the mounting seat are opened on the ears. Bolts pass through the mounting holes on the ears and are tightened in the mounting holes of the mounting seat, so that the dust cover is fixedly connected to the mounting seat of the oil storage shell.

4. The lower end structure of the rear housing of a mining truck new energy reduction box according to claim 3 is characterized in that: The dust cover also includes a bottom plate, a side plate and a connecting block. The bottom plate is in the shape of a rectangular parallelepiped. A side plate is arranged on each of the three sides of the bottom plate, and the three side plates are perpendicular to the bottom plate. A spacing is left between two adjacent side plates, and the two adjacent side plates are fixedly connected together by a connecting block.

5. The lower end structure of the rear housing of a mining truck new energy reduction box according to claim 4 is characterized in that: Each side plate is provided with a through filter hole, and two filter holes are also formed between the bottom plate, the side plate and the connecting block.

6. The lower end structure of the rear housing of a mining truck new energy reduction box according to claim 5 is characterized in that: A partition is also provided on the inner side of the rear shell body, which is seamlessly connected to the upper end of the inner side of the oil storage shell, and the partition and the oil storage shell form a cavity; the oil pump is arranged in the cavity, the bottom of the oil pump is integrally formed with the inner side of the oil storage shell, and an oil outlet is opened at the front end of the oil pump, and the oil outlet is connected to the cavity.

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