Adjustable axle distance drive axle of new energy harvester

Abstract

This utility model discloses an adjustable wheelbase drive axle for a new energy harvester, including a central electric drive axle. A drive axle housing is mounted at the end of the central electric drive axle, and a reducer is fixedly mounted on the central electric drive axle. A hub is fixedly mounted at the end of the drive axle housing, and a main half-shaft is inserted inside the drive axle housing. A torque gear sleeve is formed inside the main half-shaft, and a torque column is inserted inside the torque gear sleeve. A secondary half-shaft is fixedly connected to the end of the torque column away from the main half-shaft. This adjustable wheelbase drive axle for the new energy harvester allows the output shaft of a cylinder to drive a transmission seat to move laterally. The transmission seat can drive the connecting sleeve and the secondary half-shaft to move laterally, thereby adjusting the wheelbase of the central electric drive axle. This enables the drive axle to be compatible with multiple crops for accurate harvesting, eliminating the need for users to purchase multiple machines, significantly reducing investment costs, and minimizing equipment downtime.

Description

Technical Field

[0001] This utility model relates to the field of drive axles, specifically an adjustable wheelbase drive axle for a new energy harvester. Background Technology

[0002] Currently, new energy harvesters sold on the market use gearboxes to change gears to adapt to different operating conditions and travel speeds. However, after changing gears, the operating speed of such harvesters is limited to a certain range at a certain fixed gear, which cannot adapt to different environmental conditions such as roads, farmland, and agricultural operations. When it is necessary to adjust the forward speed for different terrains and planting densities, many operators use clutch half-clutch operation to intermittently adjust and control the harvesting speed for short periods of time and close distances. This can easily cause clutch damage, increased stress on the meshing gears, shortened service life, and affect the normal operation of the equipment.

[0003] To solve the above problems, after searching, CN204014514U disclosed a new type of drive axle for a corn harvester. The article includes a drive axle, a gearbox body fixed in the middle of the drive axle, the output end of the gearbox body is connected to one end of two rotating shafts respectively, the other end of the two rotating shafts is connected to the input end of the side reduction gearboxes set at both ends of the drive axle respectively, and a brake device is installed on both sides of the drive axle. Brake pads are respectively provided on the two rotating shafts at positions corresponding to the brake devices of the drive axle.

[0004] While the aforementioned device can achieve continuously variable transmission (CVT) within the same gear, its fixed drive axle wheelbase makes it incompatible with accurate harvesting of multiple crops. For example, wheat harvesting attachments require a wheelbase of 1.8-2 meters to match row spacing, while soybean harvesting attachments require a wheelbase of 2.2-2.5 meters to avoid crushing plants. With a fixed wheelbase of 2 meters, the wheels will still crush a large number of plants during soybean harvesting, forcing users to purchase two harvesters with different wheelbases, thus increasing costs. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable wheelbase drive axle for a new energy harvester to solve the defects mentioned in the background art.

[0006] To achieve the above objectives, an adjustable wheelbase drive axle for a new energy harvester is provided, comprising a central electric drive axle, a drive axle housing mounted at the end of the central electric drive axle, a reducer fixedly mounted on the central electric drive axle, a hub fixedly mounted at the end of the drive axle housing, a main half-shaft inserted inside the drive axle housing, a torque gear sleeve formed inside the main half-shaft, a torque column inserted inside the torque gear sleeve, a secondary half-shaft fixedly connected to the end of the torque column away from the main half-shaft, an inner sleeve fixedly mounted on one side of the drive axle housing, a positioning seat mounted on the outer ring surface of the drive axle housing, a cylinder fixedly mounted on the positioning seat, a transmission seat fixedly connected to the piston rod end of the cylinder, and a mating sleeve fixedly mounted at the bottom of the transmission seat.

[0007] Furthermore, the drive axle housing also includes a mating sleeve, a sealing bushing, a radial sealing gasket, and an axial sealing gasket. The sealing bushing has an "L" shaped cross-section and is fixedly connected to the end face of the mating sleeve.

[0008] Furthermore, a radial sealing gasket is fixedly provided at the bottom of the sealing bushing, the radial sealing gasket having an "L" shaped cross section, and an axial sealing gasket is fixedly provided on the inner wall of the mating sleeve, both the axial sealing gasket and the radial sealing gasket covering the outer ring surface of the inner sleeve.

[0009] Furthermore, the axial cross-sections of the inner sleeve and the mating sleeve are concentric circles, and the inner sleeve and the mating sleeve are sealed together by axial sealing gaskets and radial sealing gaskets.

[0010] Furthermore, the cross-sections of the torque sleeve and the torque column are both arranged in a plum blossom shape. The main half-shaft and the secondary half-shaft transmit power through the torque sleeve and the torque column. The diameters of the main half-shaft and the secondary half-shaft are the same.

[0011] Furthermore, a connecting block is fixedly installed on the top of the transmission seat, and a protective cover is welded and fixed to the end of the connecting block. The protective cover covers the outside of the cylinder, and the cross-section of the protective cover is "C" shaped. The mating sleeve and the secondary half shaft are driven to move laterally by the cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This solution uses the output shaft of the cylinder to drive the transmission seat to move laterally. The transmission seat can drive the docking sleeve and the secondary half shaft to move laterally, thereby adjusting the wheelbase of the central electric drive axle. This allows the drive axle to be compatible with multiple crops for accurate harvesting, avoiding crushing a large number of plants. Users do not need to purchase multiple machines, greatly reducing investment costs and minimizing equipment downtime.

[0014] 2. This solution uses axial and radial sealing gaskets to seal the inner sleeve and the connecting sleeve. When the new energy harvester is working in the field, soil, sand and water are not easily able to enter the interior of the inner sleeve. The radial and axial sealing gaskets form a double seal. If the radial sealing gasket is torn by sand and gravel, the axial sealing gasket can still block more than 70%-80% of the mud and water from entering, allowing the equipment to complete an emergency operation of a harvesting cycle and avoiding downtime caused by pollution in the field. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the adjustable wheelbase drive axle of this utility model.

[0016] Figure 2 This is a three-dimensional view of the internal structure of the drive axle housing of this utility model;

[0017] Figure 3 This is a rear view of the internal structure of the drive axle housing of this utility model.

[0018] Figure 4 This is a cross-sectional view of the internal structure of the drive axle housing of this utility model;

[0019] Figure 5 The structure of this utility model Figure 2 Exploded view;

[0020] Figure 6 This is a schematic diagram of the torque sleeve, torque column and their connection structure of this utility model.

[0021] The following are the labeling elements in the diagram: 1. Central electric drive axle; 2. Reducer; 3. Wheel hub; 4. Drive axle housing; 40. Main half-shaft; 41. Torque sleeve; 42. Torque column; 43. Inner sleeve; 44. Abutment sleeve; 45. Sealing bushing; 451. Radial gasket; 452. Axial gasket; 46. Secondary half-shaft; 47. Positioning seat; 471. Cylinder; 472. Transmission seat; 473. Connecting block; 474. Protective cover. Detailed Implementation

[0022] Please see Figure 1-6This utility model provides an adjustable wheelbase drive axle for a new energy harvester, including a central electric drive axle 1, a drive axle housing 4 installed at the end of the central electric drive axle 1, a reducer 2 fixedly installed on the central electric drive axle 1, a hub 3 fixedly installed at the end of the drive axle housing 4, a main half-shaft 40 inserted inside the drive axle housing 4, a torque gear sleeve 41 opened inside the main half-shaft 40, a torque column 42 inserted inside the torque gear sleeve 41, a secondary half-shaft 46 fixedly connected to the end of the torque column 42 away from the main half-shaft 40, an inner sleeve 43 fixedly installed on one side of the drive axle housing 4, a positioning seat 47 installed on the outer ring surface of the drive axle housing 4, a cylinder 471 fixedly installed on the positioning seat 47, a transmission seat 472 fixedly connected to the piston rod end of the cylinder 471, and a docking sleeve 44 fixedly installed at the bottom of the transmission seat 472.

[0023] In a preferred embodiment, the drive axle housing 4 also includes a mating sleeve 44, a sealing bushing 45, a radial sealing gasket 451, and an axial sealing gasket 452. The sealing bushing 45 has an "L" shaped cross section and is fixedly connected to the end face of the mating sleeve 44.

[0024] like Figure 2 , Figure 3 and Figure 4 As shown: A radial sealing gasket 451 is fixedly connected to the bottom of the sealing bushing 45. The cross-section of the radial sealing gasket 451 is "L" shaped. An axial sealing gasket 452 is fixedly provided on the inner wall of the mating sleeve 44. Both the axial sealing gasket 452 and the radial sealing gasket 451 cover the outer ring surface of the inner sleeve 43.

[0025] The inner sleeve 43 and the connecting sleeve 44 are sealed together by an axial sealing gasket 452 and a radial sealing gasket 451. When the new energy harvester is working in the field, soil, sand and water are not easily able to enter the interior of the inner sleeve 43. The radial sealing gasket 451 and the axial sealing gasket 452 form a double seal. If the radial sealing gasket 451 is torn by sand and gravel, the axial sealing gasket 452 can still block more than 70%-80% of mud and water from entering, allowing the equipment to complete an emergency operation of a harvesting cycle and avoiding downtime caused by pollution in the field.

[0026] In a preferred embodiment, the axial cross-sections of the inner sleeve 43 and the mating sleeve 44 are concentric circles, and the inner sleeve 43 and the mating sleeve 44 are sealed together by an axial sealing gasket 452 and a radial sealing gasket 451.

[0027] Both the torque sleeve 41 and the torque column 42 have a quincunx cross-section. The main half-shaft 40 and the secondary half-shaft 46 transmit power through the torque sleeve 41 and the torque column 42. The main half-shaft 40 and the secondary half-shaft 46 have the same diameter.

[0028] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown: The torque column 42 at the end of the secondary half-shaft 46 is inserted into the torque sleeve 41 inside the main half-shaft 40, so that when the mating sleeve 44 and the secondary half-shaft 46 move laterally, they will not interfere with the movement of the main half-shaft 40. The cross-section of the torque sleeve 41 and the torque column 42 is set in a plum blossom shape, so that when the main half-shaft 40 rotates, the secondary half-shaft 46 can be driven to rotate through the torque sleeve 41 and the torque column 42.

[0029] In a preferred embodiment, a connecting block 473 is fixedly provided on the top of the transmission seat 472, and a protective cover 474 is welded and fixed to the end of the connecting block 473. The protective cover 474 covers the outside of the cylinder 471, and the cross section of the protective cover 474 is "C" shaped. The mating sleeve 44 and the secondary half shaft 46 are driven to move laterally by the cylinder 471.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown: The cylinder 471 is surrounded by a protective cover 474, which provides protection. The protective cover 474 is made of 5-6.5mm thick Q345B steel plate and can withstand the impact of foreign objects such as stones in the field and iron wires used to tie straw. The protective cover 474 is arc-shaped and covers the outside of the cylinder 471, increasing the protection area of ​​the cylinder 471.

[0031] Working Principle: In actual use, before adjusting the wheelbase of the central electric drive axle 1, the harvester needs to be lifted with a jack, leaving the drive wheels suspended. At this time, the external switch of cylinder 471 is activated. The output shaft of cylinder 471 drives the transmission seat 472 to move laterally. The transmission seat 472 can then drive the docking sleeve 44 and the secondary half-shaft 46 to move laterally, thus adjusting the wheelbase of the central electric drive axle 1. This allows the drive axle to be compatible with multiple crops for accurate harvesting. The wheelbase adjustment range of the central electric drive axle 1 is 1.6-2.8m. This new energy harvester utilizes this drive axle. When harvesting wheat and rice, the wheelbase of the central electric drive axle 1 can be adjusted to 1.8-2m to avoid crushing large amounts of wheat and rice plants. When harvesting soybeans and corn, the wheelbase of the central electric drive axle 1 can be adjusted to 2.2-2.5m to avoid crushing large amounts of soybean and corn plants. When harvesting rapeseed, the wheelbase of the central electric drive axle 1 can be adjusted to 2-2.3m to avoid crushing large amounts of rapeseed plants. Users do not need to purchase multiple machines, greatly reducing investment costs and minimizing equipment downtime.

Claims

1. An adjustable wheelbase drive axle for a new energy harvester, comprising a central electric drive axle (1), characterized in that: The central electric drive axle (1) is equipped with a drive axle housing (4) at its end. A reducer (2) is fixedly installed on the central electric drive axle (1). A hub (3) is fixedly installed at the end of the drive axle housing (4). A main half shaft (40) is inserted inside the drive axle housing (4). A torque gear sleeve (41) is opened inside the main half shaft (40). A torque column (42) is inserted inside the torque gear sleeve (41). A secondary half shaft (46) is fixedly connected to one end of the torque column (42) away from the main half shaft (40). An inner sleeve (43) is fixedly installed on one side of the drive axle housing (4). A positioning seat (47) is installed on the outer ring surface of the drive axle housing (4). A cylinder (471) is fixedly installed on the positioning seat (47). A transmission seat (472) is fixedly connected to the piston rod end of the cylinder (471). A docking sleeve (44) is fixedly installed at the bottom of the transmission seat (472).

2. The adjustable wheelbase drive axle for a new energy harvester according to claim 1, characterized in that: The drive axle housing (4) also includes a mating sleeve (44), a sealing bushing (45), a radial sealing gasket (451), and an axial sealing gasket (452). The sealing bushing (45) has an "L" shaped cross section and is fixedly connected to the end face of the mating sleeve (44).

3. The adjustable wheelbase drive axle for a new energy harvester according to claim 2, characterized in that: A radial sealing gasket (451) is fixedly provided at the bottom of the sealing bushing (45). The cross-section of the radial sealing gasket (451) is "L" shaped. An axial sealing gasket (452) is fixedly provided on the inner wall of the mating sleeve (44). Both the axial sealing gasket (452) and the radial sealing gasket (451) cover the outer ring surface of the inner sleeve (43).

4. The adjustable wheelbase drive axle for a new energy harvester according to claim 3, characterized in that: The axial cross-section of the inner sleeve (43) and the mating sleeve (44) is a concentric circle structure. The inner sleeve (43) and the mating sleeve (44) are sealed together by an axial sealing gasket (452) and a radial sealing gasket (451).

5. The adjustable wheelbase drive axle for a new energy harvester according to claim 1, characterized in that: The cross-sections of the torque sleeve (41) and the torque column (42) are both arranged in a plum blossom shape. The main half shaft (40) and the secondary half shaft (46) transmit power through the torque sleeve (41) and the torque column (42). The diameters of the main half shaft (40) and the secondary half shaft (46) are the same.

6. The adjustable wheelbase drive axle for a new energy harvester according to claim 1, characterized in that: A connecting block (473) is fixedly installed on the top of the transmission seat (472). A protective cover (474) is welded and fixed to the end of the connecting block (473). The protective cover (474) covers the outside of the cylinder (471). The cross section of the protective cover (474) is "C". The docking sleeve (44) and the secondary half shaft (46) are driven to move laterally by the cylinder (471).

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