Power output device and tractor
By designing a power output device with a dual-power output shaft structure, the problem of single power output and complex operation in the prior art is solved, and the power output in multiple rotation directions and multiple rotation speeds is realized, which improves the simplicity and efficiency of operation.
Patent Information
- Application Number
- CN202420532849.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-03-19
AI Technical Summary
The power output devices of existing tractors are mostly mechanical single output shaft structures, which are complex in operation, time-consuming and labor-intensive, and have a single rotation direction of the output shaft and a maximum speed of two speeds, which cannot meet the requirements of the equipment for multi-rotation direction and multi-speed.
A power output device is designed, adopting a dual power output shaft structure, including an active shaft and a driven shaft, which is connected by a variable speed transmission mechanism to provide power output in two rotational directions and three rotational speeds.
It realizes power output that provides two rotation directions and three rotation speeds, meets the equipment's requirements for multi-rotation directions and multiple rotation speeds, and improves the simplicity and efficiency of operation.
Smart Images
Figure CN222458300U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tractors, in particular to a power output device and a tractor. Background Art
[0002] Most of the existing tractor power output devices are mechanical single output shaft structures, which are complicated to operate, time-consuming and labor-intensive, and the output shaft has a single rotation direction and a maximum speed of two speeds, which cannot meet the needs of machines. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a power output device which can provide a dual power output shaft structure with two rotation directions and three speed power outputs, thereby meeting the use requirements of machines for multiple rotation directions and multiple speeds.
[0004] The utility model solves the above-mentioned technical problem with the following technical solution: it comprises a mounting shell, wherein a driving shaft and a driven shaft are arranged in the mounting shell in an upper and lower interval and parallel rotation, the driving shaft and the driven shaft are connected by a speed transmission mechanism, one end of the driving shaft is an input end, and the other end is an active output end, and one end of the driven shaft is a mounting end, and the other end is an output end.
[0005] The beneficial effects of adopting the above technical solution are:
[0006] A dual power output shaft structure with two rotation directions and three speeds of power output can be provided to meet the machine's requirements for multiple rotation directions and speeds.
[0007] On the basis of the above technical solution, the present invention can also be improved as follows.
[0008] Furthermore, the input end of the driving shaft is connected to a driving motor.
[0009] The beneficial effect of adopting the above further solution is that the driving motor can drive the driving shaft to rotate, providing power for the device.
[0010] Furthermore, a shift mechanism for triggering the speed change transmission mechanism to change the rotational speed of the driven shaft is provided on the driven shaft, and the shift mechanism is located on one side of the speed change transmission mechanism.
[0011] The beneficial effect of adopting the above further solution is that the gear shifting mechanism is arranged on one side of the speed transmission mechanism, thereby saving space and reducing costs.
[0012] Further, the speed change transmission mechanism includes a low-speed driving gear, a high-speed driving gear, a low-speed driven gear and a high-speed driven gear, the low-speed driving gear and the high-speed driving gear are fixedly sleeved in the middle of the driving shaft at intervals, the low-speed driven gear and the high-speed driven gear are rotatably arranged in the mounting housing at intervals, and the low-speed driven gear and the high-speed driven gear are rotatably sleeved in the middle of the driven shaft at intervals, and one of them is connected to the driven shaft through the gear change mechanism and rotates synchronously, the low-speed driving gear and the low-speed driven gear are meshingly connected, and the high-speed driving gear and the high-speed driven gear are meshingly connected.
[0013] The beneficial effect of adopting the above further solution is that the arrangement of the low-speed driving gear, the high-speed driving gear, the low-speed driven gear and the high-speed driven gear can change the rotation speed of the output end.
[0014] Further, the gear shifting mechanism is a meshing sleeve, which is axially slidably sleeved on one end of the driven shaft and rotates synchronously with the driven shaft, the outer side of the meshing sleeve close to the end of the low-speed driven gear is provided with a first internal spline, and the inner side of the meshing sleeve is provided with a second internal spline, the low-speed driven gear close to the end of the meshing sleeve is provided with a first external spline matched with the first internal spline, the end of the high-speed driven gear close to the meshing sleeve passes through the low-speed driven gear, and the end of the high-speed driven gear is provided with a second external spline matched with the second internal spline.
[0015] The beneficial effect of adopting the above further solution is that the position of the engagement sleeve is changed by an external tool, and the engagement sleeve and the driven gear are matched by splines to achieve the rotational speed change of the driven shaft.
[0016] Furthermore, a clutch is installed on the input end of the driving shaft.
[0017] The beneficial effect of adopting the above further solution is that the engine and the speed transmission mechanism are separated before shifting, thereby extending the service life of the components.
[0018] Furthermore, the driving shaft and the driven shaft are rotatably connected inside the mounting housing via bearings respectively.
[0019] The beneficial effects of adopting the above further solution are simple structure and reduced wear of the driving shaft and the driven shaft.
[0020] Furthermore, a lubrication mechanism for lubricating the driven shaft bearing is provided in the mounting housing.
[0021] The beneficial effect of adopting the above further solution is that the lubrication mechanism lubricates the bearing of the driven shaft, thereby extending the service life and improving safety.
[0022] Furthermore, the lubrication mechanism includes a mounting plate, which is fixedly connected in the mounting shell, and an oil passage connected to the driven shaft bearing is provided in the mounting plate. An interface connected to the oil passage is provided on the mounting plate, and an oil pipe is detachably connected to the interface.
[0023] The beneficial effect of adopting the above further solution is that the oil passage is connected with the oil pipe, and the bearing of the driven shaft is lubricated by the oil pipe.
[0024] A second object of the utility model is to provide a tractor comprising the power output device.
[0025] The beneficial effects of adopting the above further solution are simple structure, convenient operation, and meeting the machine's requirements for multiple rotation directions and multiple speeds. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a cross-sectional view of the utility model;
[0027] Figure 2 It is a schematic diagram of the installation position of the lubrication mechanism of the utility model.
[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0029] 1. Driving shaft; 2. Clutch; 3. Left bearing of driving shaft; 4. Low-speed driving gear; 5. High-speed driving gear; 6. Right bearing of driving shaft; 7. Output bearing of driving shaft; 8. Active output end; 9. Left bearing of driven shaft; 10. Engaging sleeve; 11. Low-speed driven gear; 12. High-speed driven gear; 13. Right bearing of driven shaft; 14. Driven shaft; 15. Mounting housing; 16. Mounting plate; 17. Oil pipe. DETAILED DESCRIPTION
[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0031] Embodiment 1:
[0032] like Figure 1-2 As shown, in this embodiment, a power output device includes a mounting shell 15, wherein a driving shaft 1 and a driven shaft 14 are arranged in the mounting shell 15 in an upper and lower interval and parallel rotation, and the driving shaft 1 and the driven shaft 14 are connected by a speed transmission mechanism, one end of the driving shaft 1 is an input end, and the other end thereof is an active output end 8, and one end of the driven shaft 14 is a mounting end, and the other end thereof is an output end.
[0033] The beneficial effect of this embodiment is that by arranging the driving shaft 1 and the driven shaft 14 on the mounting shell 15, and arranging output ends on both the driving shaft 1 and the driven shaft 14, a dual power output shaft structure with two rotation directions and three speed power outputs can be provided, thereby meeting the machine's requirements for multiple rotation directions and multiple speeds.
[0034] Example 2
[0035] Preferably, on the basis of Example 1, Figure 1 As shown, the input end of the driving shaft 1 is connected to a driving motor.
[0036] The beneficial effect of this embodiment is that the driving motor can drive the driving shaft 1 to rotate, providing power for the device.
[0037] Furthermore, the output shaft of the driving motor may be coaxially fixedly connected to the driving shaft 1, or may be connected via some transmission mechanism, such as gears.
[0038] Example 3
[0039] Preferably, on the basis of Embodiment 2, a shift mechanism for triggering the speed change transmission mechanism to change the speed of the driven shaft is provided on the mounting end of the driven shaft 14, and the shift mechanism is located on one side of the speed change transmission mechanism.
[0040] The beneficial effect of this embodiment is that the gear shifting mechanism is arranged on one side of the speed transmission mechanism, which saves space and reduces costs.
[0041] Example 4
[0042] Preferably, on the basis of embodiments 1-3, the speed change transmission mechanism includes a low-speed driving gear 4, a high-speed driving gear 5, a low-speed driven gear 11 and a high-speed driven gear 12, the low-speed driving gear 4 and the high-speed driving gear 5 are fixedly sleeved in the middle of the driving shaft 1 at intervals, the low-speed driven gear 11 and the high-speed driven gear 12 are rotatably arranged in the mounting housing 15 at intervals, and the low-speed driven gear 11 and the high-speed driven gear 12 are sleeved in the middle of the driven shaft 14 at intervals, the low-speed driving gear 4 and the low-speed driven gear 11 are meshingly driven and connected, and the high-speed driving gear 5 and the high-speed driven gear 12 are meshingly driven and connected.
[0043] The beneficial effect of this embodiment is that the corresponding meshing transmission arrangement of the low-speed driving gear 4, the high-speed driving gear 5, the low-speed driven gear 11 and the high-speed driven gear 12 can cooperate with the gear shifting mechanism to change the rotation speed of the driven shaft 14.
[0044] It should be noted that the gear shifting mechanism in the prior art is arranged between the low-speed driven gear 11 and the high-speed driven gear 12, and two gear shifting mechanisms are arranged to control the corresponding low-speed driven gear 11 and high-speed driven gear 12 respectively, which occupies a large space and has a high cost.
[0045] Example 5
[0046] Preferably, on the basis of Example 4, the shifting mechanism is a meshing sleeve 10, and the meshing sleeve 10 is slidably sleeved on one end of the driven shaft 14, and the outer side of the meshing sleeve 10 close to the end of the low-speed driven gear 11 is provided with a first internal spline, and the inner side is provided with a second internal spline, and the low-speed driven gear 11 is provided with a first external spline matched with the first internal spline at one end close to the meshing sleeve 10, and the high-speed driven gear 12 passes through the low-speed driven gear 11 at one end close to the meshing sleeve 10, and a second external spline matched with the second internal spline is provided at the end of the meshing sleeve 10, and the meshing sleeve 10 can be moved to be spline-connected with the low-speed driven gear 11 or the high-speed driven gear 12.
[0047] The beneficial effects of this embodiment are: the position of the engagement sleeve 10 is changed by an external tool, and the engagement sleeve 10 and the driven gear are matched by splines to achieve the rotation speed change of the driven shaft 14 .
[0048] Among them, the output end of the driving shaft 1 rotates counterclockwise when viewed from the rear of the vehicle, with a speed of 2400rpm. When the engagement sleeve 10 is hung on the left, the driven shaft 14 rotates clockwise at a speed of 540rpm. When the engagement sleeve 10 is hung on the right, the driven shaft 14 rotates clockwise at a speed of 760rpm.
[0049] It should be noted that the external tool may be a shift fork. When the rotation speed of the driven shaft 14 needs to be changed, the engagement sleeve 10 is manually moved to a corresponding position by shifting the shift fork to achieve the conversion of the driven shaft 14 from high gear to low gear or low gear to high gear.
[0050] Example 6
[0051] Preferably, on the basis of embodiments 1-5, a clutch 2 is installed on the input end of the driving shaft 1.
[0052] The beneficial effect of this embodiment is that the clutch 2 separates the engine and the speed transmission mechanism for gear shifting, thereby extending the service life of the components.
[0053] Among them, the clutch 2 is a wet clutch.
[0054] Example 7
[0055] Preferably, on the basis of Embodiment 6, the driving shaft 1 and the driven shaft 14 are rotatably connected inside the mounting housing 15 via bearings respectively.
[0056] The beneficial effects of this embodiment are: simple structure and reduced wear of the driving shaft 1 and the driven shaft 14 .
[0057] Further, if Figure 1 As shown, a driving shaft left bearing 3 is provided at the left end of the driving shaft 1, a driving shaft right bearing 6 is provided at the right end, and a driving shaft output bearing 7 is provided at the output end of the driving shaft 1. The main oil channel of the clutch 2 lubricating oil is used to branch into two branch oil channels, one of which is used to lubricate the driving shaft left bearing 3, and the other is used to lubricate the driving shaft right bearing 6 and the driving shaft output bearing 7.
[0058] Example 8
[0059] Preferably, on the basis of embodiments 1-7, a lubrication mechanism for lubricating the bearing of the driven shaft 14 is provided in the mounting housing 15 .
[0060] The beneficial effects of this embodiment are: the lubrication mechanism lubricates the bearing of the driven shaft 14, thereby extending the service life and improving safety.
[0061] Example 9
[0062] Preferably, on the basis of Example 8, the lubrication mechanism includes a mounting plate 16, the mounting plate 16 is fixedly connected in the mounting shell 15, the mounting plate 16 is provided with an oil passage connected to the bearing of the driven shaft 14, the mounting plate 16 is provided with an interface connected to the oil passage, and the interface is detachably connected to an oil pipe 17.
[0063] The beneficial effect of this embodiment is that the oil passage is connected with the oil pipe 17 , and the oil pipe 17 is used to lubricate the bearing of the driven shaft 14 .
[0064] Further, if Figure 1 As shown, a driven shaft left bearing 9 is provided at the left end of the driven shaft 14 and a driven shaft right bearing 13 is provided at the right end. The hydraulic oil is controlled to enter the oil channel through an external hydraulic pump, and the driven shaft left bearing 9 is lubricated through an interface provided on the mounting plate 16, and the driven shaft right bearing 13 is lubricated using an oil pipe 17.
[0065] Example 10
[0066] Preferably, based on Embodiments 1-9, a tractor is provided, characterized in that it includes the power output device.
[0067] The beneficial effects of this embodiment are: simple structure, easy operation, and meeting the use requirements of the machine for multiple rotation directions and multiple speeds.
[0068] Beneficial effects of the utility model:
[0069] 1. It can provide dual power output shaft structure with two rotation directions and three speeds of power output, and is matched with a multi-plate wet clutch;
[0070] 2. The new gear shifting structure is arranged on one side of the speed gear to save space;
[0071] 3. The lubrication structure ensures that the bearings on the driven shaft 14 can still be fully lubricated when the tractor goes downhill.
[0072] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inside", "outside", "peripheral", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred system or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0073] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0074] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0075] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A power output device, characterized in that: The invention comprises a mounting shell (15), wherein a driving shaft (1) and a driven shaft (14) are arranged in a vertically spaced manner and are rotatable in parallel inside the mounting shell (15), wherein the driving shaft (1) and the driven shaft (14) are connected in transmission via a speed change transmission mechanism, wherein one end of the driving shaft (1) is an input end and the other end is an active output end (8), and one end of the driven shaft (14) is a mounting end and the other end is an output end.
2. A power output device according to claim 1, characterized in that: The input end of the driving shaft (1) is connected to a driving motor.
3. A power output device according to claim 1, characterized in that: The driven shaft (14) is provided with a shift mechanism for triggering the speed change transmission mechanism to change the rotation speed of the driven shaft (14), and the shift mechanism is located on one side of the speed change transmission mechanism.
4. A power output device according to claim 3, characterized in that: The speed change transmission mechanism comprises a low-speed driving gear (4), a high-speed driving gear (5), a low-speed driven gear (11) and a high-speed driven gear (12); the low-speed driving gear (4) and the high-speed driving gear (5) are fixedly sleeved in the middle of the driving shaft (1) at intervals; the low-speed driven gear (11) and the high-speed driven gear (12) are rotatably arranged in the mounting housing (15) at intervals; the low-speed driven gear (11) and the high-speed driven gear (12) are rotatably sleeved in the middle of the driven shaft (14) at intervals; one of them is connected to the driven shaft (14) through the gear change mechanism and rotates synchronously; the low-speed driving gear (4) and the low-speed driven gear (11) are meshingly connected to each other; and the high-speed driving gear (5) and the high-speed driven gear (12) are meshingly connected to each other.
5. A power output device according to claim 4, characterized in that: The gear shifting mechanism is a meshing sleeve (10), which is axially slidably sleeved on one end of the driven shaft (14) and rotates synchronously with the driven shaft (14). The meshing sleeve (10) is provided with a first internal spline on the outer side of one end close to the low-speed driven gear (11), and a second internal spline on the inner side. The low-speed driven gear (11) is provided with a first external spline that is matched with the first internal spline on one end close to the meshing sleeve (10). The high-speed driven gear (12) is provided with a second external spline that is matched with the second internal spline on one end close to the meshing sleeve (10).
6. A power output device according to claim 1, characterized in that: A clutch (2) is installed on the input end of the driving shaft (1).
7. A power output device according to claim 6, characterized in that: The driving shaft (1) and the driven shaft (14) are rotatably connected inside the mounting housing (15) via bearings respectively.
8. A power output device according to claim 7, characterized in that: A lubrication mechanism for lubricating the bearing of the driven shaft (14) is provided in the installation housing (15).
9. A power output device according to claim 8, characterized in that: The lubrication mechanism comprises a mounting plate (16), the mounting plate (16) being fixedly connected in the mounting housing (15), the mounting plate (16) being provided with an oil passage connected to a bearing of the driven shaft (14), the mounting plate (16) being provided with an interface connected to the oil passage, and the interface being detachably connected with an oil pipe (17).
10. A tractor, characterized in that: A power output device comprising any one of claims 1 to 9.