Engine flywheel housing capable of quickly disassembling and assembling turning gear assembly

Abstract

The utility model relates to an engine flywheel shell capable of quickly disassembling and assembling a turning assembly. A crankshaft flywheel of an engine is sleeved with the flywheel shell. The flywheel shell comprises a side wall, and the side wall surrounds a gear ring of the crankshaft flywheel in the circumferential direction of the crankshaft flywheel. A turning hole is formed in the side wall of the flywheel shell and used for installing a turning assembly, and the turning assembly is used for driving a crankshaft flywheel. The barring assembly comprises a barring mounting plate; the turning assembly is provided with a clamping plate limiting groove, and a clamping plate limiting block is arranged on the inner wall of the turning hole. During turning, the turning assembly is inserted into the turning hole, and when the turning wrench twists the turning assembly, a similar tenon-and-mortise mechanism is formed between the clamping plate limiting groove in the turning assembly and the clamping plate limiting block in the turning hole for fixation, so that the turning assembly is fixed to the flywheel shell, and the turning assembly is prevented from being separated from the flywheel shell due to lack of stress points.

Description

Technical Field

[0001] The present application relates to the field of engine technology, and in particular to an engine flywheel housing capable of quickly disassembling and assembling a turning gear assembly. Background Art

[0002] During engine maintenance, the engine needs to be cranked. Maintenance personnel use a cranking gear or a screwdriver to rotate the engine's crankshaft flywheel, which in turn drives the engine's pistons. The maintenance personnel then observe the working conditions of various engine components when the pistons are in different positions.

[0003] During conventional cranking operations, maintenance personnel engage the crankshaft flywheel's ring gear with a cranking gear, then use a wrench to twist the cranking gear, thereby driving the crankshaft flywheel. Existing engines have a cranking hole in the flywheel housing that faces the crankshaft flywheel's ring gear. When the cranking gear is inserted into the cranking hole, the cranking gear and crankshaft flywheel mesh.

[0004] The existing cranking hole is located on the back of the flywheel housing, facing the engine's crankshaft. The clearance between the cranking hole and other engine components is narrow, making it difficult for maintenance personnel to move the gear. Furthermore, the cranking gear is not secured to the cranking hole, causing it to separate from the crankshaft flywheel ring gear.

[0005] Therefore, in order to facilitate maintenance personnel to perform cranking operations on the engine, the present application provides an engine flywheel housing that can quickly disassemble and assemble the cranking assembly. Utility Model Content

[0006] In order to overcome the problems existing in the related art, the present application provides an engine flywheel housing capable of quickly disassembling and assembling a cranking gear assembly, wherein the flywheel housing is sleeved on the crankshaft flywheel of the engine;

[0007] The flywheel housing includes a side wall, and the side wall surrounds the gear ring of the crankshaft flywheel along the circumference of the crankshaft flywheel; a cranking hole is opened on the side wall of the flywheel housing, and the opening direction of the cranking hole is perpendicular to the axial direction of the engine crankshaft;

[0008] The cranking hole is used to install a cranking assembly, and the cranking assembly is used to drive the crankshaft flywheel;

[0009] The barring gear assembly includes a barring gear mounting plate; the barring gear assembly is provided with a card plate limiting groove, and a card plate limiting block is provided on the inner wall of the barring gear hole, and the shape of the card plate limiting block is adapted to the shape of the card plate limiting groove.

[0010] In one embodiment, the barring gear assembly includes a first barring gear and a second barring gear;

[0011] The first turning gear is meshed with the gear ring of the crankshaft flywheel along the radial direction of the crankshaft flywheel, the second turning gear is meshed with the first turning gear, and a shaft cylinder is provided on the axis of the second turning gear, and the shaft cylinder is used to cooperate with a turning wrench for turning.

[0012] In one embodiment, the barring gear assembly further includes a barring gear mounting plate;

[0013] The clamping plate limiting groove is arranged on the turning gear mounting plate, and the plate surface of the turning gear mounting plate is perpendicular to the opening direction of the turning gear hole.

[0014] In one embodiment, the side wall of the flywheel housing is further provided with an engine bracket mounting hole.

[0015] In one embodiment, there are two engine bracket mounting holes, which are respectively arranged on both sides of the flywheel housing.

[0016] In one embodiment, the height of the side wall of the flywheel housing is greater than or equal to the thickness of the crankshaft flywheel.

[0017] In one embodiment, cover mounting screw holes are provided around the turning hole, and the turning hole cover is fixed to the cover mounting screw holes by bolts.

[0018] In one embodiment, N reinforcing ribs are provided on the side wall of the flywheel housing, where N is an integer greater than or equal to .

[0019] The technical solution provided by this application may have the following beneficial effects:

[0020] The flywheel housing shown in this application is provided with a cranking hole, and a card stopper is provided on the inner wall of the cranking hole. The card stopper is configured to cooperate with the card stopper groove on the cranking assembly for fixation. During cranking, the cranking assembly is inserted into the cranking hole. When the cranking wrench is used to twist the cranking assembly, a mortise and tenon-like mechanism is formed between the card stopper groove in the cranking assembly and the card stopper in the cranking hole, thereby securing the cranking assembly to the flywheel housing and preventing it from detaching from the flywheel housing due to a lack of a force bearing point.

[0021] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0023] Figure 1This is a schematic diagram of the installation of the engine flywheel housing shown in the embodiment of the present application;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the engine flywheel housing shown in an embodiment of the present application;

[0025] Figure 3 This is a schematic diagram of the top view of the engine flywheel housing shown in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of the three-dimensional structure of the barring gear assembly shown in an embodiment of the present application;

[0027] Figure 5 A schematic cross-sectional view of a barring gear assembly according to an embodiment of the present application;

[0028] Description of the accompanying drawings: flywheel housing 1, side wall 101, turning hole 102, card plate limit block 103, engine bracket mounting hole 104, cover mounting screw hole 105, reinforcing rib 106, turning assembly 2, turning mounting plate 201, card plate limit groove 202, first turning gear 203, second turning gear 204, shaft cylinder 205. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0030] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0031] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] The existing cranking hole is located on the back of the flywheel housing 1, facing the engine's crankshaft. The gap between the cranking hole and other engine components is narrow, making it difficult for maintenance personnel to move the gear. Furthermore, the cranking gear is not secured to the cranking hole 102, causing it to separate from the crankshaft flywheel's ring gear.

[0033] In order to facilitate maintenance personnel to perform cranking operations on the engine, an embodiment of the present application provides an engine flywheel housing that can quickly disassemble and assemble a cranking assembly.

[0034] like Figure 1 As shown, the engine flywheel housing 1 shown in the embodiment of the present application is sleeved on the crankshaft flywheel of the engine.

[0035] Specifically, the structure of the flywheel housing 1 is as follows Figure 2 The flywheel housing 1 includes a side wall 101, wherein the side wall 101 surrounds the gear ring of the crankshaft flywheel along the circumference of the crankshaft flywheel.

[0036] Preferably, the height of the side wall 101 of the flywheel housing 1 is greater than or equal to the thickness of the crankshaft flywheel. N reinforcing ribs 106 are provided on the side wall 101 of the flywheel housing 1, where N is an integer greater than or equal to 1.

[0037] In the embodiment of the present application, the flywheel housing 1 is sleeved on the crankshaft flywheel to wrap the crankshaft flywheel and prevent debris from being drawn into the crankshaft flywheel.

[0038] In order to facilitate the maintenance personnel to crank the engine during maintenance, the side wall 101 of the flywheel housing 1 shown in the embodiment of the present application is provided with the following Figure 2 The cranking hole 102 is shown. The opening direction of the cranking hole 102 is perpendicular to the axial direction of the engine crankshaft.

[0039] In the embodiment of the present application, the barring gear hole 102 is used to install the barring gear assembly 2 , and the barring gear assembly 2 includes a barring gear mounting plate 201 .

[0040] In order to fix the turning gear assembly 2 on the flywheel housing 1, Figure 3 As shown, the barring gear assembly 2 is provided with a card plate limiting groove 202, and a card plate limiting block 103 is provided on the inner wall of the barring gear hole 102. In addition, the card plate limiting groove 202 is provided on the barring gear mounting plate 201, and the plate surface of the barring gear mounting plate 201 is perpendicular to the opening direction of the barring gear hole 102.

[0041] like Figure 4 and Figure 5As shown, the barring gear assembly 2 includes a first barring gear 203, a second barring gear 204 and a barring gear mounting plate 201. Specifically, the shape of the card plate limiting block 103 is adapted to the shape of the card plate limiting slot 202.

[0042] Before cranking, move the crank assembly 2 radially along the crankshaft flywheel. One end of the first crank gear 203 of the crank assembly 2 extends into the cranking hole 102. When the retaining groove 202 of the crank mounting plate 201 and the retaining block 103 of the cranking hole 102 are fully engaged, the installation of the crank assembly 2 is complete. The first crank gear 203 abuts the crankshaft flywheel, and the gears of the crank assembly 2 mesh with the ring gear of the crankshaft flywheel.

[0043] Furthermore, a shaft cylinder 205 is provided on the axis of the second turning gear 204, and the shaft cylinder 205 is used for turning in conjunction with a turning wrench.

[0044] After the cranking gear assembly 2 is installed, the maintenance personnel use the cranking wrench to turn the shaft cylinder 205, which gradually drives the first cranking gear 203, the second cranking gear 204, and the crankshaft flywheel. When the cranking wrench is turned, the retaining groove of the clamping plate in the cranking gear assembly and the retaining block of the clamping plate in the cranking hole form a mortise and tenon mechanism to fix the cranking gear assembly to the flywheel housing, preventing the cranking gear assembly from separating from the flywheel housing due to lack of a force point.

[0045] Furthermore, cover mounting screw holes 105 are provided around the turning hole 102 , and the cover of the turning hole 102 is fixed to the cover mounting screw holes 105 by bolts.

[0046] When installing the barring gear assembly 2, the card plate limiting block 103 of the barring gear mounting plate 201 is locked into the card plate limiting groove 202 of the barring gear hole 102. After removing the barring gear assembly 2, the cover mounting screw hole 105 is fixed to the barring gear hole 102.

[0047] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. An engine flywheel housing capable of quickly disassembling and assembling a turning gear assembly, characterized in that: The flywheel housing (1) is sleeved on the crankshaft flywheel of the engine; The flywheel housing (1) comprises a side wall (101), wherein the side wall (101) surrounds the gear ring of the crankshaft flywheel along the circumference of the crankshaft flywheel; A cranking hole (102) is provided on the side wall (101) of the flywheel housing (1), and the opening direction of the cranking hole (102) is perpendicular to the axial direction of the engine crankshaft; The cranking hole (102) is used to install a cranking assembly (2), and the cranking assembly (2) is used to drive the crankshaft flywheel; The turning gear assembly (2) includes a turning gear mounting plate (201); The turning gear assembly (2) is provided with a card plate limiting groove (202), and a card plate limiting block (103) is provided on the inner wall of the turning gear hole (102), and the shape of the card plate limiting block (103) is adapted to the shape of the card plate limiting groove (202).

2. The engine flywheel housing capable of rapid disassembly and assembly of a turning gear assembly according to claim 1, characterized in that: The turning gear assembly (2) comprises a first turning gear (203) and a second turning gear (204); The first turning gear (203) is meshed with the gear ring of the crankshaft flywheel along the radial direction of the crankshaft flywheel, and the second turning gear (204) is meshed with the first turning gear (203). A shaft cylinder (205) is provided on the axis of the second turning gear (204), and the shaft cylinder (205) is used to cooperate with a turning wrench for turning.

3. The engine flywheel housing capable of rapid disassembly and assembly of a turning gear assembly according to claim 2, characterized in that: The turning gear assembly (2) further includes a turning gear mounting plate (201); The card plate limiting groove (202) is arranged on the turning gear mounting plate (201), and the plate surface of the turning gear mounting plate (201) is perpendicular to the opening direction of the turning gear hole (102).

4. The engine flywheel housing capable of rapid disassembly and assembly of a turning gear assembly according to claim 1, characterized in that: The side wall (101) of the flywheel housing (1) is also provided with an engine bracket mounting hole (104).

5. The engine flywheel housing capable of quickly disassembling and assembling a turning gear assembly according to claim 4, characterized in that: There are two engine bracket mounting holes (104), which are respectively arranged on both sides of the flywheel housing (1).

6. The engine flywheel housing capable of rapid disassembly and assembly of a turning gear assembly according to claim 1, characterized in that: The height of the side wall (101) of the flywheel housing (1) is greater than or equal to the thickness of the crankshaft flywheel.

7. The engine flywheel housing capable of rapid disassembly and assembly of a turning gear assembly according to claim 1, characterized in that: Cover mounting screw holes (105) are arranged around the turning hole (102), and the cover of the turning hole (102) is fixed on the cover mounting screw holes (105) by bolts.

8. The engine flywheel housing capable of rapid disassembly and assembly of a turning gear assembly according to claim 1, characterized in that: N reinforcing ribs (106) are provided on the side wall (101) of the flywheel housing (1), where N is an integer greater than or equal to 1.

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