Gearbox power takeoff
By setting up the intake structure and the tilted-mounted power take-off body in the gearbox, the space layout is optimized, and the problem of insufficient loading and unloading cargo caused by the narrow frame of the cargo bicycle is solved, and the application on a narrow frame is achieved sex.
Patent Information
- Application Number
- CN202420042067.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-05
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-05
AI Technical Summary
The existing AMT gearbox cannot meet the problem of insufficient loading and unloading cargo due to the narrow frame of the cargo bicycle, and cannot provide sufficient power and installation space.
A transmission power take-off device is designed, by setting an inward structure and an inclined-mounted power take-off device body on the middle case, the outer contour size of the housing is reduced, and the outer part of the AMT electronic control unit, the gear shift actuator and the clutch actuator are matched. Settings optimized space layout to adapt to narrower frames.
It effectively reduces the width of the gearbox on the horizontal plane, provides installation conditions, and meets the functional needs of cargo loading and unloading of bicycles.
Smart Images
Figure CN222163464U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of gearboxes, in particular to a gearbox power take-off. Background Art
[0002] Most modern cars have a frame as the skeleton of the whole vehicle. Most of the parts and assemblies of the car are fixed by the frame, such as the engine, transmission system, suspension, steering system, cab, cargo box and related operating mechanisms. The frame supports and connects the various parts of the car and bears various loads from inside and outside the car.
[0003] The transmission system includes a gearbox, which is a mechanism used to change the speed and torque from the engine. It can change the transmission ratio of the output shaft and the input shaft in a fixed or divided manner. The transmission consists of a speed transmission mechanism and a control mechanism. Some cars also have a power output mechanism. Most transmission mechanisms use ordinary gear transmissions, and some use planetary gear transmissions. Ordinary gear transmission speed change mechanisms generally use sliding gears and synchronizers.
[0004] At present, the market prospects for express delivery and express logistics are still hot. The sedan transport vehicles used in transportation generally travel on roads with good working conditions and long distances. Drivers have higher and higher requirements for the comfort of the vehicle during driving, especially the gear shifting performance. Compared with ordinary manual shift gearboxes, AMT gearboxes switch gears in time according to road conditions, eliminating the need for manual clutch operation, which can reduce driving fatigue and improve comfort. However, due to the narrow frame of sedan transport vehicles with loading and unloading functions suitable for matching market segments, AMT gearboxes with 250PS engines are scarce. The existing AMT gearboxes cannot meet the loading and unloading problems of sedan transport vehicles, resulting in the vehicle not having the function of loading and unloading goods. Utility Model Content
[0005] In order to solve the problem that an engine with sufficient power cannot adapt to the narrow frame of a car transport bicycle, the utility model provides a gearbox power take-off.
[0006] The utility model is realized by the following technical solutions:
[0007] A gearbox power take-off comprises a front shell, a middle shell and a rear shell which are arranged in sequence from front to rear, a power take-off body is arranged on the outer side of the middle shell, and the outer shells of the middle shell and the power take-off body are both inward-retracted structures; a window on the middle shell for connecting the power take-off body is opened with a downward tilt, and the power take-off body is installed on the middle shell in an inclined state.
[0008] The inward-retracted middle shell and power take-off body reduce the external space occupied by the outer dimensions of the shell, and the power take-off body is installed diagonally below the middle shell, which helps to reduce the horizontal width occupied, thereby providing installation conditions to adapt to the narrower frame such as the car transport bicycle.
[0009] A further improvement of the utility model is that the angle between the window on the middle shell for connecting the power take-off body and the horizontal plane is 45°.
[0010] A further improvement of the utility model is that the docking window between the power take-off body and the middle shell is inclined upward, and the angle between the docking window and the horizontal plane is 20°.
[0011] A further improvement of the utility model is that a shift fork is provided in the body of the power take-off, the shift fork is inclined toward one side of the middle shell and forms an angle of 20° with the vertical direction.
[0012] A further improvement of the utility model is that the main box and the auxiliary box in the middle shell are both double intermediate shaft structures, and the center distance of the double intermediate shafts is 105mm.
[0013] A further improvement of the utility model is that the maximum width of the shell of the middle shell and the power take-off body on the horizontal plane is 300 mm.
[0014] A further improvement of the present invention is that an AMT electronic control unit is provided at the retracted position of the middle shell.
[0015] A further improvement of the utility model also includes a middle shell shift actuator, a high and low gear shift mechanism and a clutch actuator connected to the air source; the middle shell shift actuator and the clutch actuator are arranged on the middle shell, and the high and low gear shift mechanism is arranged on the rear shell.
[0016] A further improvement of the utility model is that an intermediate shaft brake acting on the intermediate shaft is provided in the inner cavity of the front housing, a refueling pump is provided on one side of the intermediate shaft brake, and the refueling pump and the intermediate shaft brake are cyclically connected through an oil inlet pipe and an oil outlet pipe. The refueling pump is connected to the lubricating oil chamber in the gearbox through the oil inlet pipe and the first inner tube of the box in turn, the refueling pump is connected to the intermediate shaft brake through the oil outlet pipe, and the intermediate shaft brake is connected to the lubricating oil chamber in the gearbox through the second inner tube of the box.
[0017] A further improvement of the utility model is that meshing auxiliary box high gear and auxiliary box low gear are provided in the rear housing, and both the auxiliary box high gear and the auxiliary box low gear are of spur gear structure.
[0018] It can be seen from the above technical scheme that the beneficial effects of the utility model are: the inward-retracted middle shell and the power take-off body reduce the external space occupied by the outer dimensions of the shell, and the power take-off body is installed obliquely below the middle shell, which helps to reduce the horizontal width occupied, thereby providing installation conditions for adapting to the narrower frame of the car transport bicycle. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.
[0021] Figure 2 It is a schematic diagram of the front shell end of a specific implementation method of the utility model.
[0022] Figure 3 It is a schematic diagram of the double intermediate shaft structure of a specific implementation mode of the utility model.
[0023] Figure 4 This is a cross-sectional view of a transmission with a power take-off body according to a specific implementation manner of the utility model.
[0024] Figure 5 It is a schematic diagram of the inclination angle of the window connected to the power take-off body on the middle shell of the specific implementation mode of the utility model.
[0025] Figure 6 It is a schematic diagram of the inclination angle of the power take-off body of a specific implementation mode of the utility model.
[0026] Figure 7 It is a schematic diagram of the inclination angle of the power take-off body fork according to a specific implementation manner of the utility model.
[0027] In the attached figure: 1. front housing, 2. shift actuator, 3. wiring harness, 4. high and low gear shift mechanism, 5. auxiliary box high gear, 6. auxiliary box low gear, 7. clutch actuator, 8. refueling pump, 9. intermediate shaft brake, 10. box inner tube 1, 11. oil inlet pipe, 12. oil outlet pipe, 13. double intermediate shaft structure, 14. power take-off body, 15. middle housing, 16 box inner tube 2. DETAILED DESCRIPTION
[0028] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.
[0029] As attached Figure 1-7 As shown, a gearbox power take-off includes a front shell 1, a middle shell 15 and a rear shell arranged in sequence from front to rear. An intermediate shaft brake 9 acting on the intermediate shaft is arranged in the inner cavity of the front shell 1, and a refueling pump 8 is arranged on one side of the intermediate shaft brake 9. The refueling pump 8 and the intermediate shaft brake 9 are circulated and connected through an oil inlet pipe 11 and an oil outlet pipe 12. The refueling pump 8 is connected to the lubricating oil chamber in the gearbox through the oil inlet pipe 11 and the inner tube 10 of the box in turn, and the refueling pump 8 is connected to the intermediate shaft brake 9 through the oil outlet pipe 12, and the intermediate shaft brake 9 is connected to the lubricating oil chamber in the gearbox through the inner tube 2 16 of the box. It is prevented that the heat generated by the intermediate shaft brake 9 cannot be discharged due to long-term operation, resulting in ablation.
[0030] The main box and the auxiliary box in the middle housing 15 are both double intermediate shaft structures 13, and the center distance of the double intermediate shafts is 105 mm.
[0031] A power take-off body 14 is provided on the outer side of the middle shell 15, and the outer shells of the middle shell 15 and the power take-off body 14 are both inward-retracted structures; the window on the middle shell 15 for connecting the power take-off body 14 is opened with a downward tilt, and the angle between the window on the middle shell 15 for connecting the power take-off body 14 and the horizontal plane is 45°. The power take-off body 14 is installed on the middle shell 15 in an inclined state. The docking window between the power take-off body 14 and the middle shell 15 is inclined upward, and the angle between the docking window and the horizontal plane is 20°. A shift fork is provided inside the power take-off body 14, and the shift fork is inclined toward one side of the middle shell 15 and forms an angle of 20° with the vertical direction.
[0032] The maximum width of the shells of the middle shell 15 and the power take-off body 14 on the horizontal plane is 300 mm.
[0033] An AMT electronic control unit, a shift actuator 2 of the middle shell 15 and a high and low gear shift mechanism 4 are also provided on one side of the power take-off body 14. The AMT electronic control unit is installed at the retracted position of the middle shell 15.
[0034] The rear shell is provided with a high-low gear shift mechanism 4. The middle shell 15 gear shift actuator 2, the high-low gear shift mechanism 4 and the high-low gear shift mechanism 4 are respectively connected to the air source.
[0035] The rear housing is provided with a meshing auxiliary box high gear 5 and an auxiliary box low gear 6, and both the auxiliary box high gear 5 and the auxiliary box low gear 6 are of spur gear structure.
[0036] To sum up, the operating principle of the present device is as follows: the present device reduces the space occupied inside the shell by arranging the AMT electronic control unit, the middle shell 15 shift actuator 2, the high and low gear shift mechanism 4 and the high and low gear shift mechanism 4 on the outside, and in combination with the inward-retracted structure of the middle shell 15, it can further reduce the space occupied by external installation components.
[0037] The window connected to the power take-off body 14, which is also an inward-retracted structure of the outer shell, is tilted downward, which helps to reduce the overall horizontal span distance optimization. In order to adapt to the docking window of the middle shell 15, the power take-off body 14 itself has also made adaptive tilt adjustments, and the internal fork is also tilted.
[0038] All gears have a straight tooth structure, which can reduce costs and ensure the use effect.
[0039] This allows for high horsepower to be used on narrower frames.
[0040] The utility model describes a gearbox power take-off, inward-retracted middle shell and power take-off body to reduce the external space occupied by the outer dimensions of the shell, and the power take-off body is installed obliquely below the middle shell, which helps to reduce the horizontal width occupied, thereby providing installation conditions for adapting to the narrower frame of the car transport bicycle.
[0041] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.
[0042] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.
[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A gearbox power take-off, comprising a front shell (1), a middle shell (15) and a rear shell arranged in sequence from front to rear, wherein a power take-off body (14) is arranged on the outer side of the middle shell (15), characterized in that: The outer shells of the middle shell (15) and the power take-off body (14) are both inward-retracted structures; the window on the middle shell (15) for connecting the power take-off body (14) is opened in a downwardly inclined manner, and the power take-off body (14) is installed on the middle shell (15) in an inclined manner.
2. A gearbox power take-off according to claim 1, characterized in that: The angle between the window on the middle shell (15) for connecting the power take-off body (14) and the horizontal plane is 45°.
3. A gearbox power take-off according to claim 2, characterized in that: The docking window between the power take-off body (14) and the middle shell (15) is inclined upward, and the angle between the docking window and the horizontal plane is 20°.
4. A gearbox power take-off according to claim 3, characterized in that: A shift fork is arranged inside the power take-off body (14), and the shift fork is inclined toward one side of the middle shell (15) and forms an angle of 20° with the vertical direction.
5. A gearbox power take-off according to any one of claims 1 to 4, characterized in that: The main box and the auxiliary box in the middle housing (15) are both double intermediate shaft structures (13), and the center distance of the double intermediate shafts is 105 mm.
6. A gearbox power take-off according to claim 5, characterized in that: The maximum width of the shell of the middle shell (15) and the power take-off body (14) on the horizontal plane is 300 mm.
7. A gearbox power take-off according to claim 6, characterized in that: An AMT electronic control unit is provided at the retracted position of the middle shell (15).
8. A gearbox power take-off according to claim 6, characterized in that: It also includes a middle shell (15) shift actuator (2), a high-low gear shift mechanism (4) and a clutch actuator (7) which are connected to the gas source; the middle shell (15) shift actuator (2) and the clutch actuator (7) are arranged on the middle shell (15), and the high-low gear shift mechanism (4) is arranged on the rear shell.
9. A gearbox power take-off according to claim 7, characterized in that: An intermediate shaft brake (9) acting on the intermediate shaft is arranged in the inner cavity of the front housing (1), and a refueling pump (8) is arranged on one side of the intermediate shaft brake (9). The refueling pump (8) and the intermediate shaft brake (9) are circulated and connected via an oil inlet pipe (11) and an oil outlet pipe (12). The refueling pump (8) is connected to the lubricating oil chamber in the gearbox via the oil inlet pipe (11) and the first inner tube (10) in the gearbox in turn, and the refueling pump (8) is connected to the intermediate shaft brake (9) via the oil outlet pipe (12), and the intermediate shaft brake (9) is connected to the lubricating oil chamber in the gearbox via the second inner tube (16) in the gearbox.
10. A gearbox power take-off according to claim 6, characterized in that: The rear housing is provided with a meshing auxiliary box high gear (5) and an auxiliary box low gear (6), and both the auxiliary box high gear (5) and the auxiliary box low gear (6) are of spur gear structure.