Energy-saving and environment-friendly new energy loader transfer case

Abstract

The invention relates to the technical field of new energy loader transmission systems, in particular to an energy-saving and environment-friendly new energy loader transfer case. The transfer case comprises a transfer case body, a transfer case cover and two PTO power takeoff ports formed in the transfer case cover, a mounting hole matched with the respirator is formed in the top of the transfer case body, a baffle for preventing the respirator from emitting oil is arranged at the mounting hole, and an oiling plug screw is arranged below the respirator; a blocking cover matched with the input shaft is arranged on the inner end face of the transfer case cover, a round oil pointer is arranged on the outer end face of the transfer case cover, and an oil discharge plug screw is arranged below the round oil pointer. The electric driving technology is adopted, and energy conservation and environment protection are achieved; the structure is simple, operation is stable and cost is low; the gear pump can well utilize vast gear pump resources of crude oil vehicles, and is especially suitable for the oil-to-electricity market.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy loader transmission systems, and in particular to an energy-saving and environmentally friendly transfer case for a new energy loader. Background Art

[0002] At present, the oil pumps of hydraulic systems are mostly directly connected to the working motors to form multi-pumps. Multi-pumps are heavy and large in size, and are prone to vibration, noise, and oil leakage during operation. At the same time, traditional working motors mostly use radial flux motors, and their large external dimensions affect the layout of the entire machine. Traditional loaders use fuel engines as their power source, which have high energy consumption and high pollution, and do not meet the requirements of energy conservation and environmental protection. With the development of new energy technologies, electric loaders have emerged, such as the new energy reducer lubrication system with oil pump auxiliary lubrication disclosed in Chinese patent publication number CN116379136A. However, the existing electric loader transmission system still has defects, and some structures are complex, resulting in increased manufacturing costs and poor operating stability; when converting from oil to electricity, it is also difficult to effectively utilize the existing gear pump resources of crude oil vehicles, resulting in waste. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an energy-saving and environmentally friendly new energy loader transfer case.

[0004] The technical solution adopted in the present invention is as follows: An energy-saving and environmentally friendly new energy loader transfer case includes a transfer case body and a transfer case cover, and two PTO power take-off ports provided on the transfer case cover, wherein: The transfer case body has an input shaft and a drive shaft installed inside. One end of the input shaft is connected to the motor, and the other end of the input shaft meshes with gear II on the drive shaft through gear I. A rotating shaft lip seal is installed around the connection between the input shaft and the motor. Both ends of the input shaft and the drive shaft are fixed by ball bearings. A mounting hole that matches the breather is provided on the top of the transfer case body. A baffle is provided at the mounting hole to prevent oil from leaking from the breather. A refueling plug is provided below the breather. The transfer case cover has a plug cover on its inner end face that matches the input shaft, and a circular oil mark on its outer end face for observing whether the oil in the transfer case is sufficient, and an oil drain plug is provided below the circular oil mark.

[0005] This technical solution utilizes the efficient transmission and distribution of motor power through a rationally designed transfer case structure, while ensuring the availability of two PTO power take-off ports. It independently drives the working pump and steering pump, achieving efficient resource utilization and flexible functional allocation. Specifically, motor power is transmitted via the input shaft, and through the meshing of Gear I and Gear II on the drive shaft, the power is smoothly transmitted to the drive shaft, achieving power diversion and speed change. The rotating shaft lip seal prevents oil leakage at the motor connection, and the ball bearings secure the input shaft and drive shaft, reducing friction and vibration and ensuring transmission stability. The breather on the top of the transfer case body, combined with the mounting holes and baffle, balances internal and external air pressure and prevents oil from escaping. The oil filler plug facilitates the addition of lubricating oil. The circular oil gauge on the transfer case cover allows for intuitive observation of the oil level, and the oil drain plug facilitates the replacement of old oil.

[0006] In addition, the energy-saving and environmentally friendly new energy loader transfer case according to the present invention may also have the following additional technical features: According to one embodiment of the present invention, the surfaces of the transfer case body and the transfer case cover are both sandblasted; and the tooth surfaces of gear I and gear II are carburized and quenched.

[0007] In this technical solution, sandblasting can form a uniform rough surface on the surface, increase the contact area between the coating and the substrate, enhance the adhesion of the coating, and significantly improve the bonding strength of the corrosion-resistant and wear-resistant coating; carburizing is to place the gear in a carbon-containing medium and heat it to allow carbon atoms to penetrate the tooth surface and increase the surface carbon content; followed by quenching, through rapid cooling, the tooth surface forms a high-hardness martensitic structure, greatly improving the hardness, wear resistance and fatigue resistance of the tooth surface, and effectively resisting the alternating stress during operation.

[0008] According to one embodiment of the present invention, the inner walls of the transfer case body and the transfer case cover are provided with mounting seats that match the ball bearings, and the mounting seats are provided with positioning bosses that tightly match the outer rings of the ball bearings.

[0009] In this technical solution, the positioning boss fits tightly with the outer ring of the ball bearing to ensure the accurate position of the ball bearing on the mounting seat, prevent the ball bearing from axial movement and radial deviation during operation, and improve the installation accuracy of the ball bearing.

[0010] According to one embodiment of the present invention, the transfer case cover is provided with bolts on its periphery that match the assembly holes of the transfer case body. The transfer case cover has an elliptical cross-section, and cylindrical pins for assembly are provided on the upper and lower sides of the transfer case cover.

[0011] According to one embodiment of the present invention, two lifting holes are provided on the side of the transfer case body extending outward, and reinforcing ribs are provided inside the lifting holes. The reinforcing ribs are distributed around the lifting holes in a cross shape.

[0012] In this technical solution, the reinforcing ribs are distributed in a cross shape around the lifting hole to enhance the structural strength of the lifting hole, prevent the lifting hole from being deformed or damaged when lifting the transfer case, and ensure the safety and reliability of the lifting process.

[0013] According to one embodiment of the present invention, the motor adopts an axial flux motor with a small structural size, and its length meets the setting requirements of the transfer case and the gearbox being installed in an integrated or split manner; its peak speed is 6000r / min, which is suitable for driving requirements through the speed ratio distribution of the transfer case.

[0014] According to one embodiment of the present invention, the gear I and the gear II mesh with each other to form a gear pair, and the gear pair adopts a displacement and equal slip rate setting so that the slip rate of each point of the gear pair is evenly distributed during the meshing process.

[0015] According to one embodiment of the present invention, the two PTO power take-off ports are both in a constantly meshed state, independently driving the working pump and the steering pump; the working pump and the steering pump are independently installed and used, and a large amount of gear pump resources of crude oil vehicles are still used.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention adopts electric drive technology, which is energy-saving and environmentally friendly; it has a simple structure, stable operation and low cost; it can make good use of the vast gear pump resources of crude oil vehicles and is particularly suitable for the oil-to-electricity market.

[0017] (2) The present invention rationally arranges the transfer case structure to achieve smooth power transmission, diversion and speed change, ensuring transmission stability; constructs a lubrication circulation system to reduce wear, extend component life, ensure stable operation under complex working conditions, and improve the overall performance of the electric loader. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the present invention.

[0019] Figure 2 yes Figure 1 AA cross-sectional view.

[0020] Figure 3 yes Figure 1 BB cross-sectional view.

[0021] Figure 4 It is a transmission diagram of the present invention.

[0022] In the figure: 1. Bolt; 2. Oil drain plug; 3. Cylindrical pin; 4. Round oil mark; 5. Transfer case body; 6. Rotating shaft lip seal; 7. Ball bearing; 8. Breather; 9. Oil filler plug; 10. Transfer case cover; 11. Plug cover; 12. Gear I; 13. Gear II; 14. Elastic retaining ring for hole; 15. Motor; 16. Hydraulic oil pump. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0024] Example 1 like Figures 1 to 4 As shown, this embodiment provides an energy-saving and environmentally friendly new energy loader transfer case, including a transfer case body 5 and a transfer case cover 10, and two PTO power take-off ports provided on the transfer case cover 10, wherein: The transfer case housing 5 has an input shaft and a drive shaft disposed therein. One end of the input shaft is connected to the motor 15, and the other end of the input shaft meshes with the gear II 13 on the drive shaft via the gear I 12. A rotary shaft lip seal 6 is disposed around the connection between the input shaft and the motor 15. Both ends of the input shaft and the drive shaft are secured by ball bearings 7. A mounting hole for a breather 8 is disposed at the top of the transfer case housing 5. A baffle is disposed at the mounting hole to prevent oil from leaking from the breather 8. A refueling plug 9 is disposed below the breather 8. The transfer case cover 10 has a plug cover 11 on its inner end face that matches the input shaft, and a circular oil mark 4 on its outer end face for observing whether the oil in the transfer case is sufficient. An oil drain plug 2 is provided below the circular oil mark 4.

[0025] like Figures 1 to 4 As shown, this technical solution utilizes the efficient transmission and distribution advantages of motor 15 through a rationally designed transfer case structure, while satisfying the requirements for two PTO power take-off ports. It independently drives the working pump and steering pump, achieving efficient resource utilization and flexible functional allocation. Specifically, the power of motor 15 is transmitted via the input shaft and smoothly transferred to the drive shaft through the meshing of gear I 12 and gear II 13 on the drive shaft, achieving power splitting and speed change. The rotating shaft lip seal 6 prevents oil leakage at the connection between motor 15, and the ball bearing 7 secures the input shaft and drive shaft, reducing friction and vibration and ensuring transmission stability. The breather 8 on the top of the transfer case body 5 cooperates with the mounting hole and baffle to balance the internal and external air pressure and prevent oil from escaping. The oil filler plug 9 facilitates the addition of lubricating oil. The circular oil gauge 4 on the transfer case cover 10 allows for intuitive observation of the oil level, and the oil drain plug 2 facilitates the replacement of used oil.

[0026] In addition, the energy-saving and environmentally friendly new energy loader transfer case according to the present invention may also have the following additional technical features: According to one embodiment of the present invention, the surfaces of the transfer case body 5 and the transfer case cover 10 are both sandblasted; and the tooth surfaces of the gear I 12 and the gear II 13 are carburized and quenched.

[0027] In this technical solution, sandblasting can form a uniform rough surface on the surface, increase the contact area between the coating and the substrate, enhance the adhesion of the coating, and significantly improve the bonding strength of the corrosion-resistant and wear-resistant coating; carburizing is to place the gear in a carbon-containing medium and heat it to allow carbon atoms to penetrate the tooth surface and increase the surface carbon content; followed by quenching, through rapid cooling, the tooth surface forms a high-hardness martensitic structure, greatly improving the hardness, wear resistance and fatigue resistance of the tooth surface, and effectively resisting the alternating stress during operation.

[0028] According to one embodiment of the present invention, the inner walls of the transfer case body 5 and the transfer case cover 10 are provided with mounting seats that match the ball bearing 7 , and the mounting seats are provided with positioning bosses that tightly match the outer ring of the ball bearing 7 .

[0029] In this technical solution, the positioning boss fits tightly with the outer ring of the ball bearing 7 to ensure the accurate position of the ball bearing 7 on the mounting seat, prevent the ball bearing 7 from axial movement and radial deviation during operation, and improve the installation accuracy of the ball bearing 7.

[0030] According to one embodiment of the present invention, the transfer case cover 10 is provided with bolts 1 around its periphery that engage with assembly holes in the transfer case body 5. The transfer case cover 10 has an elliptical cross-section, and cylindrical pins 3 are provided on the upper and lower sides of the transfer case cover 10 for assembly.

[0031] According to one embodiment of the present invention, two lifting holes are provided on the side of the transfer case body 5 extending outward, and reinforcing ribs are provided inside the lifting holes. The reinforcing ribs are distributed around the lifting holes in a cross shape.

[0032] In this technical solution, the reinforcing ribs are distributed in a cross shape around the lifting hole to enhance the structural strength of the lifting hole, prevent the lifting hole from being deformed or damaged when lifting the transfer case, and ensure the safety and reliability of the lifting process.

[0033] According to one embodiment of the present invention, the motor 15 is an axial flux motor 15 with a small structural size, and its length meets the setting requirements of the transfer case and the gearbox being installed in an integrated or split manner; its peak speed is 6000r / min, which is suitable for driving requirements through the speed ratio distribution of the transfer case.

[0034] According to one embodiment of the present invention, the gear I 12 and the gear II 13 mesh with each other to form a gear pair, and the gear pair adopts a displacement and equal slip rate setting so that the slip rate of each point of the gear pair is evenly distributed during the meshing process.

[0035] According to one embodiment of the present invention, the two PTO power take-off ports are both in a constantly meshed state, independently driving the working pump and the steering pump; the working pump and the steering pump are independently installed and used, and a large amount of gear pump resources of crude oil vehicles are still used.

[0036] The usage process of the above embodiment is as follows: like Figures 1 to 4 As shown, during operation, the axial flux motor 15 is started, and its power is transmitted through the input shaft; the rotating shaft lip seal 6 prevents oil leakage at the connection of the motor 15, and the input shaft and the drive shaft are fixed by ball bearings 7 to reduce friction vibration. The positioning boss ensures that the ball bearings 7 are installed accurately and ensures stable transmission; the input shaft engages with the gear II 13 on the drive shaft through gear I 12, and the power is smoothly transmitted to the drive shaft, realizing power splitting and speed change. The gear pair displacement and equal slip ratio setting make the meshing more uniform; The breather 8 on the top of the transfer case body 5 cooperates with the mounting hole and the baffle to balance the internal and external air pressure and prevent oil from escaping. The refueling plug 9 is convenient for adding lubricating oil; the circular oil mark 4 on the transfer case cover 10 can visually observe the oil level, and the drain plug 2 is conducive to replacing old oil; the two PTO power take-off ports in the normally meshed state independently drive the hydraulic oil pump 16, which includes a working pump and a steering pump, realizing effective resource utilization and flexible function allocation, and improving the overall performance of the electric loader.

[0037] The present invention optimizes the product structure, abandons the traditional combination of multi-pumps and radial flux motors, and adopts a more compact and reasonable structure to effectively reduce the overall weight, reduce the external dimensions, and make the equipment more flexible in spatial layout. In order to solve the vibration, noise and oil leakage problems that are easily generated during the operation of multi-pumps, the present invention improves the key components, optimizes the sealing structure and the shock-absorbing structure, and reduces the generation of vibration and noise from the source, while enhancing the sealing performance, effectively avoiding oil leakage, and improving the stability of equipment operation; compared with the shortcomings of traditional fuel engines with high energy consumption and high pollution, the present invention adopts new energy technology to achieve energy conservation and environmental protection; in order to solve the problem that the existing electric loader transmission system has a complex structure and leads to high manufacturing costs, the present application simplifies the structure and reduces manufacturing costs. In addition, the present application can also effectively utilize the existing gear pump resources of crude oil trucks to avoid waste of resources.

[0038] Although the present invention is described in detail with reference to the accompanying drawings and in combination with preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and such modifications or substitutions shall be within the scope of the present invention. Any person skilled in the art who can easily conceive of changes or substitutions within the technical scope disclosed in the present invention shall be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. An energy-saving and environmentally friendly new energy loader transfer case, characterized in that: The invention comprises a transfer case body (5) and a transfer case cover (10), and two PTO power take-off ports arranged on the transfer case cover (10), wherein: The transfer case body (5) is provided with an input shaft and a drive shaft therein, one end of the input shaft is connected to the motor (15), and the other end of the input shaft is meshed with the gear II (13) on the drive shaft through the gear I (12); a rotary shaft lip seal ring (6) is provided on the periphery of the connection between the input shaft and the motor (15); both ends of the input shaft and the drive shaft are fixed by ball bearings (7); a mounting hole matching the breather (8) is provided on the top of the transfer case body (5), a baffle is provided at the mounting hole to prevent the breather (8) from leaking oil, and a refueling screw plug (9) is provided below the breather (8); The transfer case cover (10) has a plug cover (11) on its inner end surface that matches the input shaft, and a circular oil mark (4) on its outer end surface for observing whether the oil in the transfer case is sufficient, and an oil drain plug (2) is provided below the circular oil mark (4).

2. The energy-saving and environmentally friendly new energy loader transfer case according to claim 1, characterized in that: The surfaces of the transfer case body (5) and the transfer case cover (10) are both subjected to sandblasting treatment; the tooth surfaces of the gear I (12) and the gear II (13) are subjected to carburizing and quenching treatment.

3. The energy-saving and environmentally friendly new energy loader transfer case according to claim 1, characterized in that: The inner walls of the transfer case body (5) and the transfer case cover (10) are provided with mounting seats that match the ball bearing (7), and the mounting seats are provided with positioning bosses that tightly match the outer ring of the ball bearing (7).

4. The energy-saving and environmentally friendly new energy loader transfer case according to claim 1, characterized in that: The periphery of the transfer case cover (10) is provided with bolts (1) that match the assembly holes of the transfer case body (5).

5. The energy-saving and environmentally friendly new energy loader transfer case according to claim 1 or 4, characterized in that: The cross section of the transfer case cover (10) is elliptical, and cylindrical pins (3) for assembly are provided on the upper and lower sides of the transfer case cover (10).

6. The energy-saving and environmentally friendly new energy loader transfer case according to claim 1, characterized in that: Two lifting holes are provided on the side of the transfer case body (5) extending outwards, and reinforcing ribs are provided inside the lifting holes. The reinforcing ribs are distributed around the lifting holes in a cross shape.

7. The energy-saving and environmentally friendly new energy loader transfer case according to claim 1, characterized in that: The motor (15) is an axial flux motor (15) with a small structural size, and its length meets the requirements for the installation of the transfer case and the gearbox in an integrated or split manner; Its peak speed is 6000r / min, which is suitable for driving requirements through the speed ratio distribution of the transfer case.

8. The energy-saving and environmentally friendly new energy loader transfer case according to claim 1, characterized in that: The gear I (12) and the gear II (13) mesh with each other to form a gear pair. The gear pair adopts a displacement and equal slip ratio setting so that the slip ratio of each point of the gear pair is evenly distributed during the meshing process.

9. The energy-saving and environmentally friendly new energy loader transfer case according to claim 1, characterized in that: The two PTO power take-off ports are in a constantly engaged state, independently driving the working pump and the steering pump; The working pump and steering pump are installed and used independently, and a large number of gear pump resources of crude oil trucks are reused.

Images