Split type engine flywheel casing

Abstract

The utility model discloses a split type engine flywheel casing, which relates to the technical field of engines, and comprises a flywheel casing and an engine casing, one side of the engine casing close to the flywheel casing is provided with a slot, and the inner wall of the slot is connected with the outer wall of the flywheel casing in an inserting way. According to the split type engine flywheel shell, through the effect of the auxiliary structure, one side of the flywheel shell body extrudes the first air cushion, under the effect of the communicating pipe, the two second air cushions are expanded, then the outer wall of the end of the flywheel shell body is extruded, the sealing performance between the engine shell and the flywheel shell body is improved, and the service life of the engine shell is prolonged. Therefore, lubricating oil can be effectively prevented from leaking, external impurities can be effectively prevented from entering an engine, the practical effect of the split type engine flywheel shell is improved, meanwhile, the first air cushion and the two second air cushions act at the same time, the damping effect can be achieved between all assemblies of the split type engine flywheel shell, the influence of vibration and torsion on the flywheel shell is reduced, and the service life of the flywheel shell is prolonged. And the center line stability of the engine and the transmission is ensured.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, and in particular to a split-type engine flywheel housing. Background Technology

[0002] A flywheel housing is a cast iron component that typically supports the weight of the transmission and plays a role in transmitting power. A split-type engine flywheel housing refers to a flywheel housing designed to be separated into two or more parts for easy installation, maintenance, and replacement.

[0003] The existing split-type engine flywheel housing mainly consists of a flywheel housing and an engine housing. In use, both are fitted onto the outside of the transmission and secured with bolts or other tools. However, in actual use, the fragility of the engine flywheel housing mainly stems from the imbalance between the engine and the transmission, as well as insufficient shock absorption. Especially at the connection between the flywheel housing and the engine housing, when the stress is too concentrated, the flywheel housing is at high risk of cracking. At the same time, gaps between the flywheel housing and the engine housing, or gaps caused by vibration, may lead to serious problems such as lubricating oil leakage and external impurities entering the engine.

[0004] Therefore, a split-type engine flywheel housing is proposed to address the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, the fragility of engine flywheel housings mainly stems from the imbalance between the engine and the transmission, as well as insufficient shock absorption. In particular, at the connection between the flywheel housing and the engine housing, when stress is too concentrated, the flywheel housing is at high risk of cracking. Furthermore, gaps between the flywheel housing and the engine housing, or gaps caused by vibration, may lead to serious problems such as lubricating oil leakage and external impurities entering the engine. Therefore, a split-type engine flywheel housing is proposed.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a split-type engine flywheel housing, including a flywheel housing and an engine housing. The engine housing has a slot on the side near the flywheel housing. The inner wall of the slot is inserted into the outer wall of the flywheel housing. An auxiliary structure is fixedly installed on the top of the outer wall of the engine housing. A fixing structure is fixedly installed on the outer wall of the flywheel housing. The auxiliary structure includes an air cushion one fixedly connected inside the slot. Air cushion two is fixedly connected to both the inner and outer sides of the inner wall of the slot. A rectangular box is fixedly connected to the top of the outer wall of the engine housing. An air pipe one is fixedly connected to the side of the rectangular box near the flywheel housing. The end of the air pipe one away from the rectangular box is fixedly connected to the side of the air cushion one. An air pipe two is fixedly connected to the side of the rectangular box away from the air pipe one. The bottom end of the air pipe two is fixedly connected to the side of the inner air pipe one.

[0007] Preferably, a connecting tube is fixedly connected to the side of the inner air cushion two near the rectangular box, and the top end of the connecting tube is fixedly connected to the side of the outer air cushion two near the rectangular box.

[0008] Preferably, a piston plate is slidably connected inside the rectangular box, and a push rod that penetrates the rectangular box is fixedly connected to the side of the piston plate away from the air tube. An elastic telescopic rod is fixedly connected to one end of the push rod that extends out of the rectangular box, and a locking block is fixedly connected to the output end of the elastic telescopic rod. A fixing plate is fixedly connected to the top of the rectangular box on the side away from the air tube, and the outer wall of the locking block is inserted into the bottom of the fixing plate.

[0009] Preferably, a round rod is fixedly connected inside the rectangular box, the outer wall of the round rod is slidably connected to the middle of the piston plate, a spring is fixedly connected to the side of the piston plate near the fixed plate, the spring is movably sleeved on the outside of the round rod, and the end of the spring away from the piston plate is fixedly connected to the side of the inner wall of the rectangular box.

[0010] Preferably, the fixing structure includes a fixing frame, which is fixedly connected to the outer wall of the engine housing near the flywheel housing. A fixing block is fixedly connected to the outer wall of the flywheel housing, and the size and shape of the outer surface of the fixing block are adapted to the size and shape of the inner wall of the fixing frame.

[0011] Preferably, a dovetail slide rod is slidably connected inside the fixing block, and an inclined block is fixedly connected to one end of the dovetail slide rod near the fixing frame. A locking hole penetrating the fixing frame is opened on one side of the fixing frame, and the inner wall of the locking hole is inserted into the outer wall of the inclined block.

[0012] Preferably, a second spring is fixedly connected to the side of the inclined block away from the fixed frame, and the end of the second spring away from the inclined block is fixedly connected to the inside of the fixed block. The second spring is located outside the dovetail slide rod.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] 1. This utility model provides a split-type engine flywheel housing. Through the action of an auxiliary structure, one side of the flywheel housing is compressed with an air cushion. Under the action of the connecting pipe, two air cushions expand and are then compressed against the outer wall of the end of the flywheel housing. This improves the sealing between the engine housing and the flywheel housing, effectively preventing lubricating oil leakage and external impurities from entering the engine. This enhances the practical effect of the split-type engine flywheel housing. At the same time, the air cushion and the two air cushions work together to dampen the vibration between the components of the split-type engine flywheel housing, reducing the impact of vibration and torque on the flywheel housing, and thus ensuring the stability of the centerline of the engine and the transmission.

[0015] 2. This utility model provides a split-type engine flywheel housing. Through the action of the fixing structure, the inclined surface of the inclined block can cause the edges of the inclined block and the fixing frame to be squeezed against each other during the interlocking process of the flywheel housing and the fixing frame. This allows the inclined block to slide into the interior of the fixing block along with the dovetail slide rod, thereby improving the ease of assembly of the split-type engine flywheel housing. The reaction force of the second spring can cause the inclined block to be stably inserted into the locking hole, thereby fixing the fixing block and the fixing frame, thus realizing the quick installation between the flywheel housing and the engine housing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the auxiliary structure of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the rectangular box of this utility model;

[0019] Figure 4 This is a schematic diagram of the fixing structure of this utility model.

[0020] In the diagram: 1. Flywheel housing; 2. Engine housing; 3. Auxiliary structure; 31. Air cushion one; 32. Air cushion two; 33. Connecting pipe; 34. Rectangular box; 35. Air pipe one; 36. Air pipe two; 37. Round rod; 38. Piston plate; 39. Push rod; 310. Fixing plate; 311. Elastic telescopic rod; 312. Locking block; 313. Spring one; 4. Fixing structure; 41. Fixing frame; 42. Fixing block; 43. Dovetail slide bar; 44. Inclined block; 45. Locking hole; 46. Spring two. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Specific implementation examples are given below.

[0023] Please see Figure 1 - Figure 4This utility model provides a technical solution: a split-type engine flywheel housing, including a flywheel housing 1 and an engine housing 2. A slot is provided on the side of the engine housing 2 near the flywheel housing 1, and the inner wall of the slot is inserted into the outer wall of the flywheel housing 1. An auxiliary structure 3 is fixedly installed on the top of the outer wall of the engine housing 2, and a fixing structure 4 is fixedly installed on the outer wall of the flywheel housing 1. The auxiliary structure 3 includes an air cushion 31 fixedly connected inside the slot, and air cushions 32 fixedly connected to both the inner and outer sides of the inner wall of the slot. A rectangular box 34 is fixedly connected to the top of the outer wall of the engine housing 2, and an air pipe 35 is fixedly connected to the side of the rectangular box 34 near the flywheel housing 1. The air pipe 35 is located at... One end of the rectangular box 34 is fixedly connected to one side of the air cushion 31. The side of the rectangular box 34 away from the air pipe 35 is fixedly connected to the second air pipe 36. The bottom end of the second air pipe 36 is fixedly connected to one side of the inner air pipe 35. One side of the flywheel housing 1 squeezes the air cushion 31, thereby squeezing the air inside the air cushion 31 into the rectangular box 34 through the air pipe 35. Under the action of air pressure, the piston plate 38 slides towards the fixed plate 310, thereby causing the air inside the rectangular box 34 to be discharged into the inner air cushion 32 through the second air pipe 36, thereby realizing gas exchange and allowing the second air cushion 32 to be automatically inflated, thus improving the ease of use.

[0024] like Figure 2 As shown, a connecting pipe 33 is fixedly connected to the side of the inner air cushion 32 near the rectangular box 34. The top end of the connecting pipe 33 is fixedly connected to the side of the outer air cushion 32 near the rectangular box 34. Under the action of the connecting pipe 33, the two air cushions 32 expand during the gas exchange process, and then press against the outer wall of the end of the flywheel housing 1, thereby improving the sealing between the engine housing 2 and the flywheel housing 1. This can effectively prevent lubricating oil leakage and external impurities from entering the engine, thereby improving the practical effect of the split engine flywheel housing. At the same time, the air cushion 31 and the two air cushions 32 work together to provide shock absorption between the components of the split engine flywheel housing, reduce the impact of vibration and torque on the flywheel housing, and thus ensure the stability of the center line of the engine and the transmission.

[0025] like Figure 3As shown, a piston plate 38 is slidably connected inside the rectangular box 34. A push rod 39 is fixedly connected to the side of the piston plate 38 away from the air pipe 35, penetrating the rectangular box 34. An elastic telescopic rod 311 is fixedly connected to one end of the push rod 39 that extends out of the rectangular box 34. A locking block 312 is fixedly connected to the output end of the elastic telescopic rod 311. A fixing plate 310 is fixedly connected to the top of the rectangular box 34 away from the air pipe 35. The outer wall of the locking block 312 is inserted into the bottom of the fixing plate 310. When the flywheel housing 1 is inserted into the appropriate position, the push rod 39 slides with the piston plate 38 to directly below the through hole on the surface of the fixing plate 310. At this time, under the action of the elastic telescopic rod 311, the locking block 312 is inserted into the interior of the fixing plate 310, thereby fixing the piston plate 38, thus ensuring the stability of the air cushion 31 and the two air cushions 32, and thus ensuring the sealing and shock absorption effect.

[0026] like Figure 3 As shown, a round rod 37 is fixedly connected inside the rectangular box 34. The outer wall of the round rod 37 is slidably connected to the middle of the piston plate 38. A spring 313 is fixedly connected to the side of the piston plate 38 near the fixed plate 310. The spring 313 is movably sleeved on the outside of the round rod 37. The end of the spring 313 away from the piston plate 38 is fixedly connected to the side of the inner wall of the rectangular box 34. By setting the spring 313, when the detachable engine flywheel housing is disassembled, the air cushion 31 can quickly recover its expansion and the two air cushions 32 can quickly retract, thereby achieving the effect of facilitating the disassembly and assembly of the flywheel housing 1.

[0027] like Figure 4 As shown, the fixing structure 4 includes a fixing frame 41, which is fixedly connected to the outer wall of the engine housing 2 near the flywheel housing 1. A fixing block 42 is fixedly connected to the outer wall of the flywheel housing 1. The size and shape of the outer surface of the fixing block 42 are adapted to the size and shape of the inner wall of the fixing frame 41. The fixing frame 41 can limit the fixing block 42, thereby assisting in the rapid positioning between the flywheel housing 1 and the engine housing 2, and thus improving the convenience of assembling the split engine flywheel housing.

[0028] like Figure 4 As shown, a dovetail slide rod 43 is slidably connected inside the fixing block 42. A beveled block 44 is fixedly connected to one end of the dovetail slide rod 43 near the fixing frame 41. A locking hole 45 is provided on one side of the fixing frame 41, which penetrates the fixing frame 41. The inner wall of the locking hole 45 is inserted into the outer wall of the beveled block 44. The beveled action of the beveled block 44 can cause the edges of the beveled block 44 and the fixing frame 41 to be squeezed against each other during the process of the flywheel housing 1 and the fixing frame 41 being inserted into each other. This causes the beveled block 44 to slide into the interior of the fixing block 42 along with the dovetail slide rod 43, thereby improving the convenience of assembling the split engine flywheel housing.

[0029] like Figure 4As shown, a second spring 46 is fixedly connected to the side of the inclined block 44 away from the fixed frame 41. The end of the second spring 46 away from the inclined block 44 is fixedly connected to the inside of the fixed block 42. The second spring 46 is located outside the dovetail slide rod 43. Under the reaction force of the second spring 46, the inclined block 44 can be stably inserted into the locking hole 45, thereby fixing the fixed block 42 and the fixed frame 41, thus realizing the quick installation between the flywheel housing 1 and the engine housing 2.

[0030] The working principle of this utility model is as follows: In use, after the transmission is installed inside the engine housing 2, one side of the flywheel housing 1 is inserted into a slot on one side of the engine housing 2. During this process, one side of the flywheel housing 1 compresses the first air cushion 31, thereby forcing the air inside the first air cushion 31 through the first air pipe 35 into the rectangular box 34. Under the action of air pressure, the piston plate 38 slides towards the fixed plate 310, causing the air inside the rectangular box 34 to be discharged through the second air pipe 36 into the second air cushion 32 located on the inner side. Then, under the action of the connecting pipe 33, the two second air cushions 32 expand, thereby pressing against the outer wall of the end of the flywheel housing 1, thus improving the sealing between the engine housing 2 and the flywheel housing 1. This effectively prevents lubricating oil leakage and external impurities from entering the engine, thereby improving the practical effect of the split engine flywheel housing. Simultaneously, the first air cushion 31 and the two second air cushions 32 work together to provide shock absorption between the components of the split engine flywheel housing. As a result, the impact of vibration and torque on the flywheel housing is reduced, thereby ensuring the stability of the centerline of the engine and transmission. At the same time, when the flywheel housing 1 is inserted into the appropriate position, the push rod 39 slides with the piston plate 38 to the through hole on the surface of the fixing plate 310. At this time, under the action of the elastic telescopic rod 311, the locking block 312 is inserted into the interior of the fixing plate 310, thereby fixing the piston plate 38, thus ensuring the stability of the first air cushion 31 and the two second air cushions 32, thereby ensuring the sealing and shock absorption effect. During the process of the flywheel housing 1 and the fixing frame 41 being inserted into each other, the inclined block 44 and the edge of the fixing frame 41 are pressed against each other, thereby causing the inclined block 44 and the dovetail slide rod 43 to slide into the interior of the fixing block 42. When the inclined block 44 is aligned with the locking hole 45, under the reaction action of the second spring 46, the inclined block 44 is stably inserted into the locking hole 45, thereby fixing the fixing block 42 and the fixing frame 41, thus realizing the quick installation between the flywheel housing 1 and the engine housing 2.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A split-type engine flywheel housing, comprising a flywheel housing (1) and an engine housing (2), characterized in that: The engine housing (2) has a slot on the side near the flywheel housing (1). The inner wall of the slot is inserted into the outer wall of the flywheel housing (1). An auxiliary structure (3) is fixedly installed on the top of the outer wall of the engine housing (2). A fixing structure (4) is fixedly installed on the outer wall of the flywheel housing (1). The auxiliary structure (3) includes an air cushion (31) fixedly connected inside the slot. An air cushion (32) is fixedly connected to both the inner and outer sides of the inner wall of the slot. A rectangular box (34) is fixedly connected to the top of the outer wall of the engine housing (2). An air pipe (35) is fixedly connected to the side of the rectangular box (34) near the flywheel housing (1). The end of the air pipe (35) away from the rectangular box (34) is fixedly connected to one side of the air cushion (31). An air pipe (36) is fixedly connected to the side of the rectangular box (34) away from the air pipe (35). The bottom end of the air pipe (36) is fixedly connected to one side of the inner air pipe (35).

2. The split-type engine flywheel housing according to claim 1, characterized in that: A connecting pipe (33) is fixedly connected to the side of the inner air cushion (32) near the rectangular box (34), and the top end of the connecting pipe (33) is fixedly connected to the side of the outer air cushion (32) near the rectangular box (34).

3. A split-type engine flywheel housing according to claim 1, characterized in that: A piston plate (38) is slidably connected inside the rectangular box (34). A push rod (39) that penetrates the rectangular box (34) is fixedly connected to the side of the piston plate (38) away from the first air tube (35). An elastic telescopic rod (311) is fixedly connected to one end of the push rod (39) that passes through the rectangular box (34). A locking block (312) is fixedly connected to the output end of the elastic telescopic rod (311). A fixing plate (310) is fixedly connected to the top of the rectangular box (34) away from the first air tube (35). The outer wall of the locking block (312) is inserted into the bottom of the fixing plate (310).

4. A split-type engine flywheel housing according to claim 3, characterized in that: A round rod (37) is fixedly connected inside the rectangular box (34). The outer wall of the round rod (37) is slidably connected to the middle of the piston plate (38). A spring (313) is fixedly connected to the side of the piston plate (38) near the fixed plate (310). The spring (313) is movably sleeved on the outside of the round rod (37). The end of the spring (313) away from the piston plate (38) is fixedly connected to one side of the inner wall of the rectangular box (34).

5. A split-type engine flywheel housing according to claim 1, characterized in that: The fixing structure (4) includes a fixing frame (41), which is fixedly connected to the outer wall of the engine housing (2) near the flywheel housing (1). A fixing block (42) is fixedly connected to the outer wall of the flywheel housing (1). The size and shape of the outer surface of the fixing block (42) are adapted to the size and shape of the inner wall of the fixing frame (41).

6. A split-type engine flywheel housing according to claim 5, characterized in that: The fixed block (42) is internally slidably connected to a dovetail slide rod (43), and a slope block (44) is fixedly connected to one end of the dovetail slide rod (43) near the fixed frame (41). A locking hole (45) penetrating the fixed frame (41) is provided on one side of the fixed frame (41), and the inner wall of the locking hole (45) is inserted into the outer wall of the slope block (44).

7. A split-type engine flywheel housing according to claim 6, characterized in that: A second spring (46) is fixedly connected to the side of the inclined block (44) away from the fixed frame (41). The end of the second spring (46) away from the inclined block (44) is fixedly connected to the inside of the fixed block (42). The second spring (46) is located outside the dovetail slide rod (43).

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