Planetary gearbox with wet multi-plate clutch

Abstract

The utility model relates to the technical field of gearboxes, and discloses a planetary gearbox with a wet-type multi-plate clutch, which comprises an output spline shaft, an output spline housing is fixedly mounted on the outer side of the output spline shaft, a planetary gear carrier is fixedly connected to the outer side of the output spline housing, and a sun gear is arranged in the center of the planetary gear carrier. A planetary gear set is connected to the inner wall of the planetary gear carrier in a meshed mode, the planetary gear set is connected with a sun gear in a meshed mode, a splined hub is fixedly installed on the outer side of the sun gear, a wet type brake pad set is fixedly installed in the splined hub, and a spring set is installed on the wet type brake pad set in a matched mode. And an input end is fixedly mounted at the input end of the sun gear. Compared with a single-plate clutch in the automobile industry, the planetary gearbox with the wet-type multi-plate clutch is simple in structure, reliable in performance, stable in torque transmission and capable of dynamically and freely clutching motive power, so that the working efficiency is effectively improved, and the energy loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gear boxes, in particular to a planetary gear box with a wet multi-plate clutch. Background Art

[0002] In gearboxes used in the construction machinery industry, the prime mover's power input is typically directly connected to a splined shaft, rarely employing a clutch mechanism that can freely cut off power. This requires the prime mover to constantly start and stop, which not only shortens its lifespan but also increases energy loss. Traditional single-plate friction clutch mechanisms used in the automotive industry are unsuitable for construction machinery applications. To address this issue, we propose a planetary gearbox with a wet multi-plate clutch to address this issue. Utility Model Content

[0003] (1) Technical problems solved

[0004] In response to the shortcomings of the existing technology, the utility model provides a planetary gearbox with a wet multi-plate clutch, which has the advantages of simple structure, reliable performance, stable torque transmission, etc. It solves the problem that the power input of the prime mover is usually directly connected to the spline shaft for driving, and there is rarely a clutch mechanism that can freely cut off the power. When this mode is used, the prime mover needs to start and stop constantly.

[0005] (2) Technical solution

[0006] In order to achieve the above-mentioned purpose of simple structure, reliable performance and stable torque transmission, the utility model provides the following technical solution: a planetary gearbox with a wet multi-plate clutch, comprising an output spline shaft, an output spline sleeve fixedly mounted on the outer side of the output spline shaft, a planetary gear carrier fixedly connected to the outer side of the output spline sleeve, a sun gear provided at the center of the planetary gear carrier, a planetary gear set meshingly connected to the inner wall of the planetary gear carrier, the planetary gear set being meshedly connected to the sun gear, a spline hub fixedly mounted on the outer side of the sun gear, a wet brake pad group fixedly mounted in the spline hub, a spring group matched with the wet brake pad group, a piston mounted on one side of the spring group, an input end fixedly mounted on the input end of the sun gear, an input spline shaft provided in the input end, a clutch fixedly mounted on the outer side of the input end by bolts, and an injection port provided on one side of the clutch.

[0007] Preferably, the internal connection points of the clutch are all provided with rotating sealing rings.

[0008] Preferably, the outer layer of the output spline sleeve is provided with a flange interface.

[0009] (3) Beneficial effects

[0010] Compared with the prior art, the present invention provides a planetary gearbox with a wet multi-plate clutch, which has the following beneficial effects:

[0011] 1. Compared with the single-plate clutch in the automotive industry, the planetary gearbox with a wet multi-plate clutch has a simple structure, reliable performance, stable torque transmission, and can dynamically and freely clutch the original power, thereby effectively improving work efficiency and saving energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model.

[0013] In the figure: 1 output spline shaft, 2 output spline sleeve, 3 planetary gear carrier, 4 sun gear, 5 planetary gear set, 6 spline hub, 7 wet brake pad set, 8 spring set, 9 piston, 10 input spline shaft, 11 input end, 12 injection interface, 13 rotary seal ring, 14 flange interface. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] See also Figure 1 , a planetary gearbox with a wet multi-plate clutch, comprising an output spline shaft 1, an output spline sleeve 2 is fixedly mounted on the outer side of the output spline shaft 1, the outer layer of the output spline sleeve 2 is provided with a flange interface 14, the outer side of the output spline sleeve 2 is fixedly connected to a planetary gear carrier 3, a sun gear 4 is provided at the center of the planetary gear carrier 3, a planetary gear set 5 is meshedly connected to the inner wall of the planetary gear carrier 3, the planetary gear set 5 is meshedly connected to the sun gear 4, a spline hub 6 is fixedly mounted on the outer side of the sun gear 4, a wet brake pad group 7 is fixedly mounted in the spline hub 6, the wet brake pad group 7 is matched with a spring group 8, a piston 9 is mounted on one side of the spring group 8, an input end 11 is fixedly mounted on the input end of the sun gear 4, an input spline shaft 10 is provided in the input end 11, a clutch is fixedly mounted on the outer side of the input end 11 by bolts, an injection interface 12 is opened on one side of the clutch, and a rotating sealing ring 13 is provided at each internal connection of the clutch.

[0016] Example 1

[0017] When hydraulic medium is injected into the clutch injection interface 12, the piston 9 compresses the spring force of the spring group 8 under the thrust of the hydraulic medium and moves upward to release the wet brake pad group 7. At this time, the gap between the friction plates is released and no longer under pressure. The input spline 10 rotates under the drive of the motor, and is disengaged from the power of the wet brake pad group 7. The input spline shaft 10 no longer transmits power to the spline hub 6 and the sun gear 4 through the brake pad group, and the planetary gear group 5 is disconnected from the original power input and no longer works.

[0018] Example 2

[0019] During normal operation, no hydraulic medium (usually hydraulic oil) is injected into the clutch injection interface 12. The piston 9 presses the friction plate of the wet brake pad group 7 under the action of the spring group 8. The input spline shaft 10 rotates under the drive of the motor to transmit torque to the wet brake pad group 7, and then to the spline hub 6 and the sun gear 4. The sun gear 4 transmits torque to the planetary gear set 5 to change the speed ratio and increase or decrease the torque. The converted speed and torque are output by the planetary gear 3 and transmitted to the output end flange interface 14 to perform work.

[0020] In summary, compared with the single-plate clutch in the automotive industry, the planetary gearbox with a wet multi-plate clutch has a simple structure, reliable performance, stable torque transmission, and can dynamically and freely clutch the original power, thereby effectively improving work efficiency and saving energy loss.

[0021] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0022] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A planetary gearbox with a wet multi-plate clutch, comprising an output spline shaft (1), characterized in that: An output spline sleeve (2) is fixedly mounted on the outer side of the output spline shaft (1), a planetary gear carrier (3) is fixedly connected to the outer side of the output spline sleeve (2), a sun gear (4) is provided at the center of the planetary gear carrier (3), a planetary gear set (5) is meshedly connected on the inner wall of the planetary gear carrier (3), the planetary gear set (5) is meshedly connected to the sun gear (4), a spline hub (6) is fixedly mounted on the outer side of the sun gear (4), a wet brake pad set (7) is fixedly mounted in the spline hub (6), a spring set (8) is matched with the wet brake pad set (7), a piston (9) is mounted on one side of the spring set (8), an input end (11) is fixedly mounted on the input end of the sun gear (4), an input spline shaft (10) is provided in the input end (11), a clutch is fixedly mounted on the outer side of the input end (11) by bolts, and an injection interface (12) is provided on one side of the clutch.

2. A planetary gearbox with a wet multi-plate clutch according to claim 1, characterized in that: The internal connection points of the clutch are all provided with rotating sealing rings (13).

3. A planetary gearbox with a wet multi-plate clutch according to claim 1, characterized in that: The outer layer of the output spline sleeve (2) is provided with a flange interface (14).

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