Flywheel housing for special vehicle

Abstract

The utility model relates to the technical field of internal combustion engines, in particular to a special vehicle flywheel casing, which is characterized in that a flywheel chamber, a gear chamber and a crankshaft oil seal hole are arranged on a special vehicle flywheel casing body, and the flywheel chamber and the gear chamber are respectively positioned on two sides of the special vehicle flywheel casing body; the flywheel chamber, the gear chamber and the crankshaft oil seal hole are integrated on the flywheel housing body, so that the flywheel housing is integrally designed and formed by casting, the number of parts is small, the cost is low, the risk of oil leakage is reduced, and the problems that an existing flywheel housing structure is poor in reliability and the like are solved. Particularly, some flywheel housings for special vehicles only relate to the structure of the flywheel chamber and only play a role in bearing, protecting and connecting the starter and the flywheel chamber structure.

Description

Technical Field

[0001] The utility model relates to the technical field of internal combustion engines, and particularly relates to a flywheel housing for a special vehicle. Background Technique

[0002] The flywheel housing is installed between the engine and the transmission. Generally speaking, the main function of the flywheel housing is to realize the effective connection between the engine and the transmission. Through its changes, engines of the same model can be installed on different models of vehicles to meet market demands.

[0003] The functions and structures of existing flywheel housings are relatively single. For example, the Chinese patent with the publication number CN210344739U discloses a flywheel housing for an automatic transmission, which only involves the structure of the flywheel chamber and only plays a role in carrying, protecting, and connecting the starter and the flywheel chamber structure. Content of the Utility Model

[0004] The utility model aims at the above problems and provides a flywheel housing for a special vehicle.

[0005] The technical solution adopted is a flywheel housing for a special vehicle, including a flywheel housing body for a special vehicle. A flywheel chamber, a gear chamber, and a crankshaft oil seal hole are provided on the flywheel housing body for a special vehicle, and the flywheel chamber and the gear chamber are respectively located on both sides of the flywheel housing body for a special vehicle;

[0006] The crankshaft oil seal hole is used for installing a crankshaft oil seal and communicates the flywheel chamber and the gear chamber.

[0007] Optionally, an oil seal installation positioning surface is provided on the crankshaft oil seal hole, and the oil seal installation positioning surface is located in the flywheel chamber.

[0008] Optionally, an idle gear installation structure is provided on the flywheel housing body for a special vehicle, and the idle gear installation structure is arranged in the gear chamber. The idle gear installation structure includes an idle gear shaft installation hole, three bolt holes, and a bearing lubricating oil hole.

[0009] Optionally, an idle gear disassembly and assembly structure is provided on the flywheel housing body for a special vehicle, and the idle gear disassembly and assembly structure is located on the upper side edge of the flywheel housing body for a special vehicle. The idle gear disassembly and assembly structure includes eight bolt holes for fixing gaskets and covers.

[0010] Optionally, a power take-off structure is provided on the flywheel housing body for a special vehicle, and the power take-off structure is located at the end of the idle gear disassembly and assembly structure. An output structure of the power take-off, an output gear bearing hole, and a bearing seat cover installation surface are provided on the power take-off structure.

[0011] Optionally, a starter installation structure is provided on the flywheel housing body for a special vehicle, and the starter installation structure is on the same side as the gear chamber. The starter installation structure includes three bolt holes, a mounting stop, and a starter head avoidance space.

[0012] Optionally, two transmission mounting structures are provided on the flywheel housing body of the special vehicle, and the two transmission mounting structures are arranged on the outer periphery of the flywheel chamber. Each transmission mounting structure includes four bolt holes and weight reduction holes.

[0013] Optionally, a bearing lubricating oil passage is provided on the flywheel housing body of the special vehicle, and a thread for fixing a lubricating oil pipe is provided at the end of the bearing lubricating oil passage.

[0014] Optionally, reinforcing ribs are provided on the flywheel housing body of the special vehicle, and the reinforcing ribs are located on the back of the flywheel chamber.

[0015] The advantages of the present utility model are as follows:

[0016] By integrating the flywheel chamber, the gear chamber and the crankshaft oil seal hole on the flywheel housing body, such an integrated design, integrated casting and molding, fewer parts, low cost and reduced oil leakage risk are achieved, solving the existing flywheel housing structure, especially the flywheel housing for special vehicles, which only involves the structure of the flywheel chamber and only plays a role in carrying, protecting and connecting the starter and the flywheel chamber structure. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the flywheel housing structure of a special vehicle;

[0018] Figure 2 It is a schematic diagram of the flywheel housing structure of a special vehicle from another angle.

[0019] Wherein the reference numerals: 1 is the starter mounting structure, 2 is the transmission mounting structure, 3 is the idler gear disassembly and assembly structure, 4 is the gear chamber, 5 is the bolt avoidance hole, 6 is the idler gear mounting structure, 7 is the crankshaft oil seal hole, 8 is the reinforcing rib, 9 is the bearing lubricating oil passage, 10 is the power take-off output structure, 11 is the bearing cover mounting surface, 12 is the output gear bearing hole, 13 is the flywheel chamber, and 14 is the oil seal mounting and positioning surface. Detailed Embodiments

[0020] The following specific examples illustrate the embodiments of the present utility model. Those skilled in the art can easily understand the other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0021] It should be noted that the illustrations provided in the following embodiments only schematically illustrate the basic concept of the present utility model. Therefore, only the components related to the present utility model are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and proportion of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0022] As Figure 1 and Figure 2 shown, a flywheel housing for a special vehicle includes a flywheel housing body of the special vehicle. Among them, a flywheel chamber 13, a gear chamber 4, and a crankshaft oil seal hole 7 are provided on the flywheel housing body of the special vehicle, and the flywheel chamber 13 and the gear chamber 4 are respectively located on both sides of the flywheel housing body of the special vehicle;

[0023] The crankshaft oil seal hole 7 is used to install a crankshaft oil seal and communicates the flywheel chamber 13 and the gear chamber 4.

[0024] The purpose of such a design is that by integrating a flywheel chamber, a gear chamber, and a crankshaft oil seal hole on the flywheel housing body, such an integrated design, integrated casting and molding, fewer parts, low cost, and reduced oil leakage risk are achieved, solving the existing flywheel housing structure, especially some flywheel housings for special vehicles, which only involve the structure of the flywheel chamber and only play a role in carrying, protecting, and connecting the starter and the flywheel chamber structure.

[0025] It should be pointed out that the special vehicle referred to in this embodiment is usually a special function vehicle such as a mixer truck.

[0026] At the same time, an oil seal installation positioning surface 14 is provided on the crankshaft oil seal hole 7, and the oil seal installation positioning surface 14 is located in the flywheel chamber 13.

[0027] Furthermore, an idle gear installation structure 6 is provided on the flywheel housing body of the special vehicle, and the idle gear installation structure 6 is arranged in the gear chamber 4. The idle gear installation structure 6 includes an idle gear shaft installation hole, three bolt holes, and a bearing lubricating oil hole.

[0028] The purpose of such a design is that the idle gear installation structure can be fixed in the gear chamber through the idle gear shaft installation hole, three bolt holes, and the bearing lubricating oil hole.

[0029] Furthermore, an idle gear disassembly and assembly structure 3 is provided on the flywheel housing body of the special vehicle, and the idle gear disassembly and assembly structure 3 is located on the upper side edge of the flywheel housing body of the special vehicle. The idle gear disassembly and assembly structure 3 includes eight bolt holes for fixing gaskets and covers. A power take-off structure is provided on the flywheel housing body of the special vehicle, and the power take-off structure is located at the end of the idle gear disassembly and assembly structure 3. The power take-off structure is provided with a power take-off output structure 10, an output gear bearing hole 12, and a bearing seat cover installation surface 11.

[0030] In this embodiment, a starter mounting structure 1 is provided on the body of the special vehicle flywheel housing, and the starter mounting structure 1 and the gear chamber 4 are located on the same side. The starter mounting structure 1 includes three bolt holes, a mounting stop, and a starter head avoidance space.

[0031] In this way, the starter mounting structure is integrated on the body of the special vehicle flywheel housing through three bolt holes, a mounting stop, and a starter head avoidance space.

[0032] In this embodiment, two transmission mount structures 2 are provided on the body of the special vehicle flywheel housing, and the two transmission mount structures 2 are arranged on the outer periphery of the flywheel chamber 13. Each transmission mount structure 2 includes four bolt holes and weight reduction holes.

[0033] The purpose of such a design is that the two transmission mount structures can be fixed on the outer periphery of the flywheel chamber through eight bolt holes and two weight reduction holes, and at the same time, the weight can be reduced.

[0034] In this embodiment, a bearing lubricating oil passage 9 is provided on the body of the special vehicle flywheel housing, and a thread for fixing a lubricating oil pipe is provided at the end of the bearing lubricating oil passage 9.

[0035] In this embodiment, a reinforcing rib 8 is provided on the body of the special vehicle flywheel housing, and the reinforcing rib 8 is located on the back of the flywheel chamber 13.

[0036] The purpose of such a design is to increase the overall mechanical strength of the flywheel housing.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flywheel housing for a special vehicle, comprising a flywheel housing body for a special vehicle, characterized in that, A flywheel housing body of the special vehicle is provided with a flywheel chamber (13), a gear chamber (4) and a crankshaft oil seal hole (7), and the flywheel chamber (13) and the gear chamber (4) are respectively located on both sides of the flywheel housing body of the special vehicle; The crankshaft oil seal hole (7) is used for installing a crankshaft oil seal and communicates the flywheel chamber (13) and the gear chamber (4).

2. The flywheel housing of a special vehicle according to claim 1, characterized in that An oil seal installation positioning surface (14) is provided on the crankshaft oil seal hole (7), and the oil seal installation positioning surface (14) is located in the flywheel chamber (13).

3. A flywheel housing for a special vehicle according to claim 1, characterized in that, An idle gear installation structure (6) is provided on the flywheel housing body of the special vehicle, and the idle gear installation structure (6) is arranged in the gear chamber (4). The idle gear installation structure (6) includes an idle gear shaft installation hole, three bolt holes and a bearing lubricating oil hole.

4. The flywheel housing of a special vehicle according to claim 3, characterized in that, An idle gear disassembly and assembly structure (3) is provided on the flywheel housing body of the special vehicle, and the idle gear disassembly and assembly structure (3) is located on the upper side edge of the flywheel housing body of the special vehicle. The idle gear disassembly and assembly structure (3) includes eight bolt holes for fixing gaskets and covers.

5. A flywheel housing for a special vehicle according to claim 4, characterized in that, A power take-off structure is provided on the flywheel housing body of the special vehicle, and the power take-off structure is located at the end of the idle gear disassembly and assembly structure (3). An output structure (10) of the power take-off, an output gear bearing hole (12) and a bearing seat cover installation surface (11) are provided on the power take-off structure.

6. A flywheel housing for a special vehicle according to claim 1, characterized in that, A starter installation structure (1) is provided on the flywheel housing body of the special vehicle, and the starter installation structure (1) is on the same side as the gear chamber (4). The starter installation structure (1) includes three bolt holes, an installation stop and a starter head avoidance space.

7. A flywheel housing for a special vehicle according to claim 1, characterized in that, Two transmission suspension installation structures (2) are provided on the flywheel housing body of the special vehicle, and the two transmission suspension installation structures (2) are arranged on the outer periphery of the flywheel chamber (13). Each transmission suspension installation structure (2) includes four bolt holes and weight reduction holes.

8. A flywheel housing for a special vehicle according to claim 1, wherein, A bearing lubricating oil passage (9) is provided on the flywheel housing body of the special vehicle, and a thread for fixing a lubricating oil pipe is provided at the end of the bearing lubricating oil passage (9).

9. The flywheel housing of a special vehicle according to claim 1, characterized in that, Reinforcing ribs (8) are provided on the flywheel housing body of the special vehicle, and the reinforcing ribs (8) are located on the back of the flywheel chamber (13).

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