Integral gear chamber and idler gear structure
Patent Information
- Application Number
- CN202522529968.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-11-28
AI Technical Summary
传统方案齿轮室与齿轮室盖为两个铸件,这种结构不仅零件数量多、模具成本和加工成本较高,而且惰齿轮轴通常安装在发动机机体上,需在机体上加工安装孔和螺栓孔,并额外设置惰齿轮挡板以防止轴向窜动,结构复杂、装配工序繁琐,装配效率低
[0013]本实用新型提供了一种一体式齿轮室及惰齿轮结构,将齿轮室和齿轮室盖整合铸造成整体的一体式齿轮室,集成了齿轮室和齿轮室盖的功能,减少了零件数量。并设置了用于安装惰齿轮的窗口,通过窗口将惰齿轮安装在齿轮室上。惰齿轮直接安装在齿轮室上,不需要在机体上额外安装加工孔和螺栓孔。所述齿轮室内腔中设有凹槽,当安放所述惰齿轮轴时,将所述轴体的底部插入所述凹槽内,此时所述固定端的底部紧贴所述一体式齿轮室的表面,接着通过螺栓实现所述固定端与所述一体式齿轮室的固定,从而通过凹槽和螺栓实现对惰齿轮轴的两端固定。减少了零件数量,从而提高了装配效率,定位牢固可靠。
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Figure CN224850177U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of diesel engine technology, and in particular to an integrated gear chamber and idler gear structure. Background Technology
[0002] Traditional engines typically use gear or chain drives. To facilitate assembly, the gear chamber is usually designed as an open structure to allow for the installation of components such as the idler gear. After assembly, the gear chamber cover is then installed on the gear chamber. In the traditional design, the gear chamber and gear chamber cover are two castings. This structure not only results in a large number of parts and high mold and processing costs, but also requires the idler gear shaft to be mounted on the engine block, necessitating the machining of mounting holes and bolt holes on the engine block, as well as the addition of an idler gear baffle to prevent axial movement. This leads to a complex structure, cumbersome assembly procedures, and low assembly efficiency.
[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0004] The purpose of this utility model is to provide an integrated gear chamber and idler gear structure with high assembly efficiency.
[0005] To achieve the above objectives, this utility model provides an integrated gear chamber and idler gear structure, comprising: two idler gears; an integrated gear chamber including a drive shaft hole, two idler gear shaft holes, and an internal gear chamber cavity, wherein the two idler gear shaft holes are respectively distributed on both sides of the drive shaft hole, and the internal gear chamber cavity is a hollow structure disposed within the integrated gear chamber cavity for accommodating the idler gears, and the integrated gear chamber cavity is also provided with a window for mounting the idler gears; and two idler gear shafts, wherein the idler gear shafts are T-shaped and match the idler gear shaft holes, and the idler gear shafts are used to mount the idler gears onto the integrated gear chamber.
[0006] In one or more embodiments, the integrated gear chamber is further provided with a cooling system for cooling the engine.
[0007] In one or more embodiments, the integral gear chamber is provided with a lubrication system for lubricating the idler gear shaft.
[0008] In one or more embodiments, the cooling system includes a freshwater pump port, a freshwater outlet, a freshwater inlet, and a freshwater channel; the freshwater pump port is used to install a freshwater pump, and the freshwater pump is used to drive cooling water to flow from the freshwater inlet into the freshwater channel and then out from the freshwater outlet.
[0009] In one or more embodiments, the lubrication system includes: an oil pump hole, an oil passage, an oil inlet, and an oil outlet; the oil pump hole is used to install an oil pump, and the oil pump is used to drive oil to flow from the oil inlet into the oil passage and then out from the oil outlet.
[0010] In one or more embodiments, a plurality of O-rings are provided between the idler gear shaft and the integral gear chamber.
[0011] In one or more embodiments, the integrated gear chamber is further provided with a seawater pump hole, a PTO hole, and an oil pump hole; the seawater pump hole is used to install a seawater pump, the oil pump hole is used to install an oil pump, and the PTO hole is used to install a PTO.
[0012] In one or more embodiments, the gear chamber has a groove for accommodating the idler gear shaft, which is fixedly connected to the integral gear chamber by bolts.
[0013] This invention provides an integrated gear chamber and idler gear structure, which integrates the gear chamber and gear chamber cover into a single, cast, one-piece gear chamber, combining the functions of both and reducing the number of parts. A window is provided for installing the idler gear, allowing it to be mounted on the gear chamber. The idler gear is directly mounted on the gear chamber, eliminating the need for additional machining holes and bolt holes on the machine body. The gear chamber cavity has a groove; when the idler gear shaft is placed, the bottom of the shaft is inserted into the groove, at which point the bottom of the fixed end is in close contact with the surface of the integrated gear chamber. Bolts are then used to fix the fixed end to the integrated gear chamber, thus securing both ends of the idler gear shaft through the groove and bolts. This reduces the number of parts, thereby improving assembly efficiency and ensuring a secure and reliable positioning. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of an integrated gear chamber and idler gear structure provided in an embodiment of this utility model.
[0015] Figure 2 This is a rear view of an integrated gear chamber and idler gear structure provided in an embodiment of this utility model.
[0016] Figure 3 This is a cross-sectional view of an integrated gear chamber and idler gear structure provided in an embodiment of this utility model.
[0017] Explanation of key figure labels:
[0018] 1-Idler gear, 2-Integral gear chamber, 21-Drive shaft hole, 22-Idler gear shaft hole, 23-Gear chamber cavity, 231-Groove, 24-Window, 25-Cooling system, 251-Freshwater pump hole, 252-Freshwater outlet, 253-Freshwater inlet, 26-Lubrication system, 261-Oil pump hole, 262-Oil inlet, 263-Oil outlet, 27-Seawater pump hole, 28-PTO hole, 29-Oil pump hole, 3-Idler gear shaft, 31-Shaft body, 32-Fixed end, 4-O-ring seal, 5-Bolt. Detailed Implementation
[0019] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.
[0020] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.
[0021] An integrated gear chamber and idler gear structure, such as Figures 1 to 3 As shown, it includes: two idler gears; an integrated gear chamber including a drive shaft hole, two idler gear shaft holes, and an internal gear chamber cavity, wherein the two idler gear shaft holes are respectively distributed on both sides of the drive shaft hole, and the internal gear chamber cavity is a hollow structure disposed inside the integrated gear chamber cavity for accommodating the idler gears, and the integrated gear chamber cavity is also provided with a window for mounting the idler gears; and two idler gear shafts, wherein the idler gear shafts are T-shaped and match the idler gear shaft holes, and the idler gear shafts are used to mount the idler gears on the integrated gear chamber cavity.
[0022] Specifically, the idler gear is inserted into the gear chamber cavity through a window. After being positioned, the idler gear shaft passes downward through the idler gear shaft hole, thereby fixing the idler gear. The idler gear is directly installed on the gear chamber, eliminating the need for machining holes and bolt holes on the machine body. The idler gear shaft is T-shaped and plugs into the idler gear shaft hole. The idler gear shaft includes a shaft body and a fixed end perpendicularly disposed on the shaft body. The length and width of the shaft body match the idler gear shaft hole, and the fixed end protrudes beyond the integrated gear chamber after the idler gear shaft is installed. The gear chamber cavity has a groove. When the idler gear shaft is placed, the bottom of the shaft body is inserted into the groove, at which point the bottom of the fixed end is in close contact with the surface of the integrated gear chamber. Then, the fixed end is fixed to the integrated gear chamber using bolts.
[0023] As an optional implementation, the integrated gear chamber is also provided with a cooling system for cooling the engine.
[0024] As an optional implementation, the integrated gear chamber is provided with a lubrication system for lubricating the idler gear shaft.
[0025] As an optional implementation, the cooling system includes a freshwater pump hole, a freshwater outlet, a freshwater inlet, and a freshwater channel; the freshwater pump hole is used to install a freshwater pump, and the freshwater pump is used to drive cooling water to flow from the freshwater inlet into the freshwater channel and then out from the freshwater outlet.
[0026] Specifically, the freshwater inlet is located at the top of the integrated gear chamber, and the freshwater outlet is located on the side of the integrated gear chamber near the window. The freshwater pump is driven by the idler gear. Cooling water flows in from the freshwater inlet, then passes through the engine and cools it, and finally flows out from the freshwater outlet.
[0027] As an optional implementation, the lubrication system includes: an oil pump hole, an oil passage, an oil inlet, and an oil outlet; the oil pump hole is used to install an oil pump, and the oil pump is used to drive oil to flow from the oil inlet into the oil passage and then out from the oil outlet.
[0028] Specifically, the engine oil flows in from the oil inlet, then lubricates the idler gear shaft in the integrated gear chamber, and finally flows out from the oil outlet channel.
[0029] As an optional implementation, a plurality of O-rings are provided between the idler gear shaft and the integrated gear chamber.
[0030] Specifically, the O-rings are located at the bottom of the fixed end and the bottom of the shaft, respectively, to prevent oil leakage in the vertical direction.
[0031] As an optional implementation, the integrated gear chamber is further provided with a seawater pump hole, a PTO hole, and an oil pump hole; the seawater pump hole is used to install a seawater pump, the oil pump hole is used to install an oil pump, and the PTO hole is used to install a PTO.
[0032] Specifically, the seawater pump, the PTO, and the oil pump are mounted on an integrated gear chamber and driven by an idler gear. The seawater pump port is located on the integrated gear chamber between the oil pump port and the oil pump port.
[0033] As an optional implementation, the gear chamber has a groove for accommodating the idler gear shaft, which is fixedly connected to the integral gear chamber by bolts.
[0034] Specifically, the bolt passes through the fixed end of the idler gear shaft and the integrated gear chamber, thereby fixing the idler gear shaft to the integrated gear chamber. The gear chamber has a groove; when the idler gear shaft is installed, the bottom of the shaft is inserted into the groove, at which point the bottom of the fixed end is in close contact with the surface of the integrated gear chamber. Then, the fixed end is fixed to the integrated gear chamber using bolts.
[0035] By adopting the above technical solution, this utility model provides an integrated gear chamber and idler gear structure, which integrates the gear chamber and gear chamber cover into a single integrated gear chamber, combining the functions of the gear chamber and gear chamber cover and reducing the number of parts. A window for installing the idler gear is provided, through which the idler gear is installed on the gear chamber. The idler gear is directly installed on the gear chamber, eliminating the need for additional machining holes and bolt holes on the machine body. The gear chamber cavity has a groove. When placing the idler gear shaft, the bottom of the shaft is inserted into the groove, at which point the bottom of the fixed end is in close contact with the surface of the integrated gear chamber. Then, bolts are used to fix the fixed end to the integrated gear chamber, thus securing both ends of the idler gear shaft through the groove and bolts. This reduces the number of parts, thereby improving assembly efficiency and ensuring firm and reliable positioning.
[0036] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.
Claims
1. An integrated gear chamber and idler gear structure, characterized in that, include: Two idler gears; An integrated gear chamber includes a drive shaft hole, two idler gear shaft holes, and an internal gear chamber cavity. The two idler gear shaft holes are respectively distributed on both sides of the drive shaft hole. The internal gear chamber cavity is a hollow structure disposed inside the integrated gear chamber cavity. The internal gear chamber cavity cavity is used to accommodate the idler gears. The integrated gear chamber cavity cavity cavity is also provided with a window for installing the idler gears. Two idler gear shafts, the idler gear shafts being T-shaped and matching the idler gear shaft holes, the idler gear shafts being used to mount the idler gears on the integrated gear chamber.
2. The integrated gear chamber and idler gear structure as described in claim 1, characterized in that, The integrated gear chamber is also equipped with a cooling system for cooling the engine.
3. The integrated gear chamber and idler gear structure as described in claim 1, characterized in that, The integrated gear chamber is equipped with a lubrication system, which is used to lubricate the idler gear shaft.
4. The integrated gear chamber and idler gear structure as described in claim 2, characterized in that, The cooling system includes a freshwater pump hole, a freshwater outlet, a freshwater inlet, and a freshwater channel; the freshwater pump hole is used to install a freshwater pump, and the freshwater pump is used to drive cooling water to flow from the freshwater inlet into the freshwater channel and then out from the freshwater outlet.
5. The integrated gear chamber and idler gear structure as described in claim 3, characterized in that, The lubrication system includes: an oil pump hole, an oil passage, an oil inlet, and an oil outlet; the oil pump hole is used to install an oil pump, and the oil pump is used to drive oil to flow from the oil inlet into the oil passage, and then out from the oil outlet.
6. The integrated gear chamber and idler gear structure as described in claim 1, characterized in that, Multiple O-rings are provided between the idler gear shaft and the integrated gear chamber.
7. The integrated gear chamber and idler gear structure as described in claim 1, characterized in that, The integrated gear chamber is also provided with a seawater pump hole, a PTO hole, and an oil pump hole; the seawater pump hole is used to install a seawater pump, the oil pump hole is used to install an oil pump, and the PTO hole is used to install a PTO.
8. The integrated gear chamber and idler gear structure as described in claim 1, characterized in that, The gear chamber has a groove inside, which is used to accommodate the idler gear shaft. The idler gear shaft is fixedly connected to the integrated gear chamber by bolts.