Engine power take-off device

Abstract

The utility model relates to an engine power take-off device which comprises a flywheel shell body, an internal gear train, a bearing and an installation bolt, and the flywheel shell body is detachably installed at the rear end of an engine through the installation bolt. A shell body of the flywheel shell is provided with a lug-shaped structure used for protecting internal parts and providing a power take-off interface for an external assembly. A cover plate is arranged on the end face of the power take-off connector of the ear-shaped structure. The internal gear train is matched with the bearing to transmit the torque of the engine to an external assembly needing power take-off. According to the utility model, comprehensive protection and support are provided for internal parts, and meanwhile, the requirement of external power take-off from different positions is met; the rolling bearings are installed at the rotating positions of the gears, engine oil enters the shell through the lubricating oil pipe to lubricate internal parts, daily disassembly and assembly are convenient, and engineers can conveniently repair and maintain the gears.

Description

Technical Field

[0001] The utility model relates to the technical field of construction machinery, and particularly to an engine power take-off device. Background Art

[0002] With the continuous expansion and iterative update of construction machinery products, the application fields of off-road engines have gradually increased, and the application conditions of construction machinery equipment have put forward more requirements for the power take-off positions of engines.

[0003] Defects of the prior art:

[0004] 1. In the traditional application of construction machinery, since the engine only needs to be connected to the gearbox, only one power output interface is provided for the whole vehicle.

[0005] 2. With the expansion of the application fields of off-road engines in construction machinery, one power output port can no longer meet the requirements of some special application conditions such as the applications of road rollers and agricultural machinery.

[0006] 3. Since in addition to the gearbox requiring power, some hydraulic devices also need the engine to provide a power source, the prior art cannot meet the requirement that the power unit of the whole vehicle needs multiple power take-off interfaces. Summary of the Invention

[0007] Aiming at the above problems, the utility model provides an engine power take-off device, aiming to provide multiple power output ports to meet the power take-off requirements of the whole vehicle customers, and at the same time facilitating maintenance by service engineers.

[0008] To solve the above problems, the technical solution provided by the utility model is as follows:

[0009] The engine power take-off device comprises a flywheel housing, an internal gear train, bearings, and mounting bolts, wherein:

[0010] The flywheel housing is detachably mounted at the rear end of the engine through the mounting bolts; the flywheel housing is provided with an ear-shaped structure for protecting internal parts and providing a power take-off interface for external components;

[0011] The internal gear train is arranged inside the flywheel housing and cooperates with the bearings to transmit the engine torque to the external components that need to take power.

[0012] Preferably, the internal gear train comprises a driving wheel and a driven wheel; the driving wheel is arranged at the installation position corresponding to the engine inside the flywheel housing and cooperates with the driving wheel bearing to take power from the engine; the driven wheel is arranged inside the ear-shaped structure; the driven wheel meshes with the driving wheel and cooperates with the driven wheel bearing to transmit power to the external components.

[0013] Preferably, a lubricating oil pipe is installed above the flywheel housing; one end of the lubricating oil pipe is installed on the oil inlet hole of the flywheel housing through a connector.

[0014] Preferably, a cover plate is provided on the end face of the power take-off interface of the ear-shaped structure; the cover plate is detachably installed at the corresponding position of the ear-shaped structure through the installation bolts, and is used to seal the ear-shaped structure when power take-off is not required.

[0015] Preferably, there are 2 ear-shaped structures.

[0016] Preferably, there are 2 sets of the driven wheel and the driven wheel bearing, and they are respectively arranged at the corresponding positions of the 2 ear-shaped structures to meet the power take-off requirements of multiple external components simultaneously.

[0017] Preferably, the flywheel housing is made of gray iron.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. Since the device of the present invention is installed at the rear end of the engine, it can effectively provide multiple power output ports, thereby meeting the power take-off requirements of the whole vehicle customers.

[0020] 2. Since the device of the present invention is provided with multiple ear-shaped structures for providing power take-off interfaces, and at the same time, the positions of the internal gear trains can be interchanged, and the bearings can be disassembled and assembled, it is convenient for service engineers to repair while meeting the requirements of taking power from different positions externally. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the engine power take-off device of the specific embodiment of the present invention;

[0022] Figure 2 Exploded view of the internal gear train of the specific embodiment of the present invention;

[0023] Figure 3a Left view schematic diagram of the engine power take-off device of the specific embodiment of the present invention;

[0024] Figure 3b Side view schematic diagram of the engine power take-off device of the specific embodiment of the present invention;

[0025] Figure 3c Right view schematic diagram of the engine power take-off device of the specific embodiment of the present invention.

[0026] Wherein: 100. Flywheel housing, 110. Ear-shaped structure, 120. Oil inlet hole, 200. Internal gear train, 210.

[0027] Drive wheel, 220. Driven wheel, 300. Lubricating oil pipe, 310. Connector, 400. Bearing, 410. Drive wheel bearing, 420. Driven wheel bearing, 500. Cover plate, 600. Mounting bolt. Detailed implementation mode

[0028] The following further clarifies the present invention in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. After reading the present invention, various equivalent modifications made by those skilled in the art fall within the scope defined by the appended claims of this application.

[0029] As Figure 1 shown, the engine power take-off device includes a flywheel housing 100, an internal gear train 200, a bearing 400, and a mounting bolt 600, wherein:

[0030] The flywheel housing 100 is detachably mounted on the rear end of the engine through the mounting bolt 600; the flywheel housing 100 is provided with an ear-shaped structure 110 for protecting internal parts and providing a power take-off interface for external components.

[0031] The internal gear train 200 is arranged inside the flywheel housing 100 and cooperates with the bearing 400 to transmit the engine torque to external components that need to take power.

[0032] It should be noted that the flywheel housing 100 provides comprehensive protection and support for internal parts, effectively blocking the contact between external impurities and internal parts, thereby avoiding problems such as leakage. At the same time, it can also provide mounting interfaces and support for external parts such as starters and vehicle mounts; the ear-shaped structure 110 can meet the power take-off from the ear-shaped structure 110 while protecting internal parts; the bearing 400 is used to reduce the frictional loss between the gear rotation and the support housing.

[0033] It should be further noted that through the mutual meshing between the gears of the internal gear train 200, the torque on the crankshaft of the engine is transmitted to the position of the ear-shaped structure 110, and the customer can take power on the bearing 400 at the ear-shaped structure 110.

[0034] It should be further noted that the flywheel housing 100 is made of gray iron to meet the requirements of strength and temperature resistance.

[0035] As Figure 2As shown, it should be noted that the internal gear train 200 includes a driving gear 210 and a driven gear 220; the driving gear 210 is arranged at the installation position corresponding to the engine inside the flywheel housing 100 and is engaged with the driving gear bearing 410 for power take-off from the engine; the driven gear 220 is arranged inside the ear-shaped structure 110; the driven gear 220 meshes with the driving gear 210 and is engaged with the driven gear bearing 420 to transmit power to the external components.

[0036] It should be further noted that the internal gear train 200 transmits the engine torque. The user can connect a hydraulic device through the spline shaft interface of the topmost gear, thus realizing the power transmission function. The bearing 400 can be disassembled and assembled daily, which is convenient for service engineers to repair and maintain the engine.

[0037] As Figure 1 shown, it should be noted that an oil lubricating pipe 300 is installed above the flywheel housing 100; one end of the oil lubricating pipe 300 is installed on the oil inlet hole 120 of the flywheel housing 100 through a joint 310.

[0038] It should be further noted that the lubricating oil enters the inside of the flywheel housing from the oil lubricating pipe 300 for lubricating the internal parts of the power take-off device.

[0039] As Figure 1 shown, it should be noted that a cover plate 500 is provided on the end face of the power take-off interface of the ear-shaped structure 110; the cover plate 500 is detachably installed at the corresponding position of the ear-shaped structure 110 through mounting bolts 600 for sealing the ear-shaped structure 110 when power take-off is not required.

[0040] It should be further noted that the cover plate 500 can be disassembled and assembled daily, which is convenient for service engineers to repair and maintain the engine.

[0041] As Figure 1 shown, it should be noted that there are 2 ear-shaped structures 110.

[0042] As Figure 1 shown, it should be noted that there are 2 sets of driven gears 220 and driven gear bearings 420, which are respectively arranged at the corresponding positions of the 2 ear-shaped structures 110 to meet the simultaneous power take-off of multiple external components.

[0043] It should be further noted that the positions of the internal gear train 200 can be interchanged, and the installation positions of the gears can be changed according to different power take-off positions.

[0044] In the foregoing detailed description, various features are combined in a single embodiment to simplify the present disclosure. This method of disclosure should not be interpreted as reflecting an intention that the embodiments of the claimed subject matter require more features than those clearly recited in each claim. On the contrary, as reflected in the appended claims, the invention lies in less than the full features of the single disclosed embodiment. Accordingly, the appended claims are hereby expressly incorporated into the detailed description, where each claim stands alone as a separate preferred embodiment of the invention.

[0045] The above-described disclosed embodiments are described to enable any person skilled in the art to make or use the present invention. For those skilled in the art, various modifications to these embodiments are obvious, and the general principles defined herein can also be applied to other embodiments without departing from the spirit and scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments given herein, but is consistent with the broadest scope of the principles and novel features disclosed in this application.

[0046] The foregoing description includes examples of one or more embodiments. Of course, it is impossible to describe all possible combinations of components or methods for the purpose of describing the above embodiments, but those of ordinary skill in the art should recognize that the various embodiments can be further combined and arranged. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of the appended claims. In addition, with respect to the term "comprising" used in the specification or claims, this term is inclusive in a manner similar to the term "including", as interpreted when "including" is used as a transitional word in a claim. In addition, any use of the term "or" in the specification or claims of a patent is to mean "non-exclusive or".

[0047] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above description is only the specific embodiments of the present invention and is not used to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An engine power take-off device, characterized in that: It includes a flywheel housing (100), an internal gear train (200), bearings (400), and mounting bolts (600), where: The flywheel housing (100) is detachably mounted at the rear end of the engine through the mounting bolts (600); the flywheel housing (100) is provided with ear-shaped structures (110) for protecting internal parts and providing a power take-off interface for external components; The internal gear train (200) is arranged inside the flywheel housing (100) and cooperates with the bearings (400) to transmit the engine torque to the external components that require power take-off.

2. The engine power take-off device according to claim 1, characterized in that: The internal gear train (200) includes a driving wheel (210) and a driven wheel (220); the driving wheel (210) is arranged at the installation position corresponding to the engine inside the flywheel housing (100) and cooperates with the driving wheel bearing (410) for power take-off from the engine; the driven wheel (220) is arranged inside the ear-shaped structure (110); the driven wheel (220) meshes with the driving wheel (210) and cooperates with the driven wheel bearing (420) to transmit power to the external components.

3. The engine power take-off device according to claim 2, characterized in that: An oil lubricating pipe (300) is installed above the flywheel housing (100); one end of the oil lubricating pipe (300) is installed on the oil inlet hole (120) of the flywheel housing (100) through a joint (310).

4. The engine power take-off device according to claim 3, characterized in that: A cover plate (500) is provided on the end face of the power take-off interface of the ear-shaped structure (110); the cover plate (500) is detachably installed at the corresponding position of the ear-shaped structure (110) through the mounting bolts (600) for sealing the ear-shaped structure (110) when power take-off is not required.

5. The engine power take-off device according to claim 4, characterized in that: There are 2 ear-shaped structures (110).

6. The engine power take-off device according to claim 5, characterized in that: There are 2 sets of the driven wheels (220) and the driven wheel bearings (420), which are respectively arranged at the corresponding positions of the 2 ear-shaped structures (110) to meet the simultaneous power take-off of multiple external components.

7. The engine power take-off device according to claim 6, characterized in that: The flywheel housing (100) is made of gray iron material.

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