Snow plow sandwich power takeoff

Abstract

The utility model discloses a kind of snow removal vehicle sandwich power take-off, it is related to special snow removal equipment manufacturing technical field, it includes the casing between engine and gearbox, the casing is equipped with the meshing in proper order driving gear, intermediate driven gear, heat dissipation driven gear and multiple power take-off driven gear;Driving gear is sleeved on driving shaft, one end of driving shaft is connected with engine flywheel through coupling, the other end of driving shaft is connected with gearbox one axle through clutch;Heat dissipation driven gear is sleeved on heat dissipation driven shaft, one end of heat dissipation driven shaft is connected with the input shaft of heat dissipation pump, power take-off driven gear is sleeved on power take-off driven shaft, power take-off driven shaft is connected with the input shaft of hydraulic pump, the shell of hydraulic pump is connected with casing through transition flange;Casing is equipped with lubricating oil channel.The utility model can solve the problem of insufficient power of snow removal vehicle power take-off in prior art, gear shifting power interruption, poor adaptability and low lubrication reliability.

Description

Technical Field

[0001] This utility model relates to the field of manufacturing technology of special snow removal equipment, and in particular to a snow removal vehicle sandwich power take-off device. Background Technology

[0002] In winter road snow removal operations, snowplows are the core snow removal equipment, and their hydraulic walking system and attachment drive system require a stable power supply to ensure operational efficiency. Currently, the power take-off method of snowplows mainly suffers from the following technical defects: 1. Insufficient power supply: The hydraulic walking system requires a large-displacement hydraulic pump to provide power, but the output power of the engine's built-in power take-off port is limited and cannot meet the power requirements of the large-displacement pump, resulting in slow hydraulic walking speed and low operating efficiency.

[0003] 2. Power interruption problem: Traditional power take-off methods often rely on the gearbox for power, and power interruption can occur during gearbox shifting. This problem can cause attachments (such as snow-throwing impellers) to stop operating during snow removal operations, affecting the continuity of snow removal and potentially causing equipment jamming and damage due to snow accumulation inside the attachments.

[0004] 3. Poor adaptability and high management costs: Different configurations of snowplows require different models of hydraulic pumps, but the existing power take-off (PTO) interface structure is fixed. Each time a different pump type is used, a corresponding PTO needs to be designed and manufactured. This results in a wide variety of PTOs, requiring separate stocking during production, making inventory management difficult, and also increasing the costs of equipment maintenance and replacement.

[0005] 4. Low lubrication reliability: Some power take-off units require manual lubrication at regular intervals. Manual operation can easily lead to untimely lubrication due to negligence, which shortens the service life of the power take-off unit.

[0006] In view of the shortcomings of the existing technology, there is an urgent need for a snowplow power take-off that can achieve full power output, avoid power interruption, be compatible with various pump types, and have reliable lubrication, so as to meet the needs of efficient and stable snow removal operations. Utility Model Content

[0007] The purpose of this invention is to provide a snowplow sandwich power take-off (PTO) that can solve the problems of insufficient power, power interruption during gear shifting, poor adaptability, and low lubrication reliability in existing snowplow PTOs.

[0008] To solve the above problems, the technical solution adopted by this utility model is as follows: This snowplow sandwich power take-off includes a housing located between the engine and the gearbox. The housing contains a drive gear, an intermediate driven gear, a cooling driven gear, and multiple power take-off driven gears that mesh sequentially. The drive gear is mounted on a drive shaft, one end of which is connected to the engine flywheel via a coupling, and the other end is connected to a gearbox shaft via a clutch. The cooling driven gear is mounted on a cooling driven shaft, one end of which is connected to the input shaft of a cooling pump. The power take-off driven gear is mounted on a power take-off driven shaft, which is connected to the input shaft of a hydraulic pump. The housing of the hydraulic pump is connected to the housing via a transition flange. The housing has a lubrication oil passage, the inlet of which is connected to the outlet of the cooling pump. The outlet of the lubrication oil passage is located at the meshing point between the drive gear, the intermediate driven gear, the cooling driven gear, and the power take-off driven gear, as well as at a bearing support hole.

[0009] In the above technical solution, a more specific technical solution may be: the number of the power take-off driven gears is 2 to 4, and they are arranged circumferentially along the heat dissipation driven gear.

[0010] Furthermore, the power take-off driven shaft is connected to the input shaft of the hydraulic pump via a spline.

[0011] Furthermore, the intermediate driven gear is mounted inside the housing via an intermediate driven shaft.

[0012] Furthermore, one end of the transition flange is connected to the housing by a first bolt, and the other end is connected to the housing of the hydraulic pump by a second bolt.

[0013] Furthermore, the coupling is a highly elastic coupling.

[0014] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: 1. This utility model is directly connected between the engine and the gearbox, and transmits the full power of the engine through the coupling. It avoids the problems of insufficient power from the engine's own power take-off port and interruption of power take-off shifting in the gearbox, ensuring continuous and stable power for the hydraulic walking system and the attachment drive system, and improving the continuity and efficiency of snow removal operations.

[0015] 2. The input shaft of the hydraulic pump is connected to the power take-off driven shaft via a spline, and the outer casing is connected to the housing via a transition flange. When replacing different models of hydraulic pumps, only the spline and transition flange of different models need to be replaced and the bolts tightened. The structure and size of the transition flange can be flexibly adapted to the design of different pump types without replacing the entire power take-off unit, reducing the types of power take-off units and lowering production inventory management costs and equipment maintenance costs.

[0016] 3. The cooling pump rotates synchronously with the cooling driven gear, realizing the automatic delivery of lubricating oil to key friction parts, avoiding the negligence of manual lubrication, extending the service life of the device, and ensuring lubrication efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model, which has two driven gears for power taking. Detailed Implementation

[0018] The specific embodiments of this utility model are described in detail below. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; however, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] like Figure 1 and Figure 2The snowplow's sandwich power take-off (PTO) includes a housing 3 located between the engine 1 and the gearbox 2. Inside the housing 3 are a drive gear 4, an intermediate driven gear 5, a cooling driven gear 6, and multiple power take-off driven gears 7 that mesh sequentially. The drive gear 4 is mounted on a drive shaft 8. One end of the drive shaft 8 is connected to the engine flywheel 10 via a coupling 9, and the other end of the drive shaft 8 has a power take-off flywheel 11, which is connected to the gearbox shaft 13 via a clutch 12. The intermediate driven gear 5 is mounted inside the housing 3 via an intermediate driven shaft, and the cooling driven gear 6 is mounted on the cooling driven shaft. One end of the shaft is connected to the input shaft of the cooling pump 14. The power take-off driven gear 7 is mounted on the power take-off driven shaft. The power take-off driven shaft is connected to the input shaft of the hydraulic pump 15 via a spline. The housing of the hydraulic pump 15 is connected to the housing 3 via a transition flange 16. The drive shaft 8, intermediate driven shaft, cooling driven shaft, and power take-off driven shaft are all connected to the housing 3 via bearings. The housing 3 is provided with a lubricating oil passage. The oil inlet of the lubricating oil passage is connected to the oil outlet of the cooling pump 14. The oil outlet of the lubricating oil passage is located at the meshing point between the drive gear 4, intermediate driven gear 5, cooling driven gear 6, and power take-off driven gear 7, as well as at the bearing support hole.

[0022] There are 2 to 4 power take-off driven gears 7, which are arranged circumferentially along the heat dissipation driven gear 6.

[0023] One end of the transition flange 16 is connected to the housing 3 by the first bolt, and the other end is connected to the housing of the hydraulic pump 15 by the second bolt.

[0024] The housing of engine 1 is connected to housing 3 by a third bolt, and the housing of gearbox 2 is connected to housing 3 by a fourth bolt.

[0025] In this embodiment, the coupling 9 is a highly flexible coupling. Each power take-off driven gear 7 corresponds to one power take-off driven shaft, and each power take-off driven shaft is connected to a hydraulic pump 15. Therefore, the number of transition flanges 16 is the same as the number of power take-off driven gears 7, which can provide power to multiple hydraulic pumps with different functions at the same time.

[0026] The working principle of this utility model is as follows: After the engine 1 starts, the power is transmitted from the engine flywheel 10 to the drive shaft 8 through the coupling 9. The drive shaft 8 drives the drive gear 4 to rotate, thereby driving the intermediate driven gear 5, the cooling driven gear 6, and multiple power take-off driven gears 7 to rotate. The power take-off driven gears 7 transmit power to the hydraulic pump 15 through the spline on the power take-off driven shaft to achieve full power take-off. When the gearbox 2 shifts gears, the clutch 12 disengages. At this time, the power of the hydraulic pump 15 is still continuously provided by the power take-off driven gears 7, which is not affected by the gearbox 2 shifting gears and there is no power interruption.

[0027] When it is necessary to drive the snowplow attachments, power is transmitted from the power take-off flywheel 11 through the clutch 12 to the gearbox shaft 13, and then from the gearbox 2 to the attachments, so as to enable the attachments to operate.

[0028] When replacing different models of hydraulic pump 15, only the spline and transition flange of different models need to be replaced and the fastening bolts tightened. The structure and size of the transition flange can be flexibly adapted to the design of different pump types, without the need to replace the entire power take-off unit.

[0029] To shorten the oil suction distance, an oil sump for storing lubricating oil can be set at the bottom of the housing 3. The oil inlet of the cooling pump 14 is connected to the oil sump. When the power take-off of this utility model is working, the cooling pump 14 rotates synchronously with the cooling driven gear 6, pumping the lubricating oil into the lubrication pipeline and oil passage, and delivering it to each lubrication point.

[0030] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A snowplow sandwich power take-off unit, characterized in that: The system includes a housing located between the engine and the transmission. Within the housing are sequentially meshed drive gears, intermediate driven gears, cooling driven gears, and multiple power take-off driven gears. The drive gear is mounted on a drive shaft, one end of which is connected to the engine flywheel via a coupling, and the other end is connected to the transmission shaft via a clutch. The cooling driven gear is mounted on a cooling driven shaft, one end of which is connected to the input shaft of a cooling pump. The power take-off driven gear is mounted on a power take-off driven shaft, which is connected to the input shaft of a hydraulic pump. The housing of the hydraulic pump is connected to the housing via a transition flange. The housing has lubrication passages, the inlet of which is connected to the outlet of the cooling pump. The outlet of the lubrication passages is located at the meshing points between the drive gear, intermediate driven gear, cooling driven gear, and power take-off driven gear, as well as at the bearing support holes.

2. The snowplow sandwich power take-off unit according to claim 1, characterized in that: The number of power-taking driven gears is 2 to 4, and they are arranged circumferentially along the heat dissipation driven gear.

3. The snowplow sandwich power take-off unit according to claim 1 or 2, characterized in that: The power take-off driven shaft is connected to the input shaft of the hydraulic pump via a spline.

4. The snowplow sandwich power take-off unit according to claim 3, characterized in that: The intermediate driven gear is mounted inside the housing via an intermediate driven shaft.

5. The snowplow sandwich power take-off unit according to claim 4, characterized in that: One end of the transition flange is connected to the housing by a first bolt, and the other end is connected to the housing of the hydraulic pump by a second bolt.

6. The snowplow sandwich power take-off unit according to claim 5, characterized in that: The coupling is a highly flexible coupling.

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