Damping device for harvester engine

Abstract

The utility model discloses a damping device for a harvester engine. The damping device comprises a pair of protective rings, a pair of damping pads, a gasket, a connecting column and a locking plate. Openings of the pair of retainers are oppositely arranged on the upper side and the lower side of the top plate of the harvester rack, one ends of the pair of shock pads are supported in the pair of retainers respectively, the gasket is arranged on the lower side of the shock pad on the lower side of the top plate of the harvester rack, and the engine legs are supported on the shock pad on the upper side of the top plate of the harvester rack. The connecting column sequentially penetrates through the gasket, the pair of shock pads, the pair of protective rings, the harvester rack top plate and the engine foot bottom plate from bottom to top and comprises a column body and a head, one end of the column body is connected to the center of the head, and an annular groove is formed in the rear section of the column body in the circumferential direction of the column body. A receding notch is formed in the edge of the end face of the other end of the column body in the axial direction of the column body and extends to the annular groove, the locking plate is of an annular structure, and a limiting protrusion matched with the annular groove is arranged on the inner side wall of a center through hole of the locking plate.

Description

Technical Field

[0001] This utility model is a shock absorption device for harvester engines. Background Technology

[0002] The engine is the vibration source of a combine harvester, and the propagation of engine vibration directly affects the overall reliability and service life of the harvester. Traditional harvester engine vibration damping mechanisms include rubber damping pads, two end plates, connecting bolts, and nuts. The two end plates are fixed to the engine mounts and the harvester frame respectively via the connecting bolts and nuts, and the end plates are welded to the heads of the connecting bolts. The rubber damping pads are formed by filling the space between the two end plates with rubber and then vulcanizing it. While this device provides some vibration damping, during actual harvesting operations, the engine is subjected to various tension belts, resulting in complex stresses on the damping mechanism. The damping mechanism is constantly under various tensile, compressive, or shear conditions, eventually leading to the rubber damping pads breaking or separating from the end plates, weakening their vibration damping performance, causing malfunctions, and reducing the overall reliability of the machine. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a shock absorption device for harvester engines.

[0004] A vibration damping device for a harvester engine includes a pair of retaining rings, a pair of damping pads, washers, a connecting post, and a locking plate. The pair of retaining rings have openings facing away from each other and are positioned on the upper and lower sides of the harvester frame top plate. One end of each pair of damping pads is supported within the pair of retaining rings. The washers are positioned below the damping pads on the lower side of the harvester frame top plate. The engine mounts are supported on the damping pads on the upper side of the harvester frame top plate. The connecting post passes sequentially from bottom to top through the washers, the pair of damping pads, the pair of retaining rings, the harvester frame top plate, and the engine mount base plate.

[0005] The connecting column includes a column body and a head. One end of the column body is connected to the center of the head. The rear section of the column body has an annular groove along its circumference. The edge of the other end face of the column body has a clearance notch along its axial direction. The clearance notch extends to the annular groove. The locking plate has a ring-shaped structure, and the inner wall of its central through hole has a limiting protrusion that cooperates with the annular groove.

[0006] Furthermore, the number of the clearance gaps is two, and they are set in a relatively mirror image.

[0007] Furthermore, the column is a cylindrical structure.

[0008] Furthermore, it also includes a limiting component, which includes a base plate with locking rods at both ends that mate with the clearance notch, and the locking rods extend into the annular groove.

[0009] Furthermore, the shock absorption mechanism also includes a spacer sleeve, which is fitted onto the connecting bolts and located between the engine mount plate and the washer.

[0010] Furthermore, the protective ring is a bowl-shaped structure with a flange extending outward from the bottom.

[0011] Furthermore, the flange extends into the mounting hole in the middle of the top plate of the harvester frame.

[0012] Furthermore, the bottom shape of one end of the shock-absorbing pad matches the bottom shape of the protective ring.

[0013] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0014] Stable structure and effective vibration damping: This vibration damping device, through a combination of a pair of protective rings, a pair of damping pads, washers, connecting columns, and locking plates, provides stable support and effective vibration damping for the harvester engine. The protective rings and damping pads absorb and disperse vibrations during engine operation, protecting the engine and harvester frame from damage.

[0015] The design of the connecting column simplifies the installation and adjustment of the entire shock absorption device. The connecting column body features an annular groove and a clearance notch. The locking plate, through a limiting protrusion engaging with the annular groove, achieves a secure lock on the connecting column. Simultaneously, the clearance notch facilitates necessary adjustments during installation.

[0016] The shock absorber has two clearance notches, which are set in a mirror image. This design enhances the adaptability and flexibility of the device, enabling it to accommodate different models and specifications of engine mounts.

[0017] The addition of a limiting component further enhances the safety of the shock absorption device. The base plate and locking rod of the limiting component, along with the clearance notch and annular groove, effectively prevent the connecting column from loosening or falling off during vibration.

[0018] The spacer reduces friction between the connecting bolts and the engine mount plate and washers, extending their service life. The retaining ring is a bowl-shaped structure with a flange extending outwards from the bottom. The flange extends into the mounting hole in the middle of the harvester frame top plate. This design enhances the stability and fixation of the retaining ring. The bottom shape of one end of the shock absorber pad matches the bottom shape of the retaining ring, ensuring stable support for the shock absorber pad.

[0019] The entire shock absorption device has a reasonable structural design, with tight connections between components that are easy to disassemble, facilitating subsequent maintenance and replacement. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a shock absorption device for a harvester engine;

[0021] Figure 2 yes Figure 1 A partial view along the B direction;

[0022] Figure 3 This is an assembly diagram of the connecting column, limiting component, and locking plate;

[0023] Figure 4 This is a schematic diagram of the connecting column;

[0024] Figure 5 This is a schematic diagram of the locking plate;

[0025] Figure 6 This is a schematic diagram of the limiting component;

[0026] In the diagram, 1. Engine, 2. Frame, 21. Top plate, 3. Engine feet, 4. Shock absorption mechanism, 41. Protective ring, 42. Shock absorption pad, 43. Washer, 44. Spacer, 45. Connecting column, 451. Head, 452. Column, 453. Clearance notch, 454. Annular groove, 5. Locking plate, 51. Limiting protrusion, 6. Limiting component, 61. Locking rod. Detailed Implementation

[0027] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0028] like Figure 1-6 As shown, the components are: engine 1, frame 2, top plate 21, engine foot 3, shock absorption mechanism 4, protective ring 41, shock absorption pad 42, washer 43, spacer 44, connecting column 45, head 451, column 452, clearance notch 453, annular groove 454, locking plate 5, limiting protrusion 51, limiting piece 6, and snap rod 61.

[0029] A shock-absorbing device for a harvester engine includes a pair of retaining rings 41, a pair of shock-absorbing pads 42, washers 43, a connecting post 45, and a locking plate 5. The pair of retaining rings 41 are positioned with their openings facing away from each other on the upper and lower sides of the top plate 21 of the harvester frame 2. One end of each pair of shock-absorbing pads 42 is supported within the pair of retaining rings 41. The washers 43 are positioned below the shock-absorbing pads 42 on the lower side of the top plate 21 of the harvester frame 2. The engine mount 3 is supported on the shock-absorbing pads 42 on the upper side of the top plate 21 of the harvester frame 2. The connecting post 45 passes sequentially from bottom to top through the washers 43, the pair of shock-absorbing pads 42, the pair of retaining rings 41, the top plate 21 of the harvester frame 2, and the base plate of the engine mount 3.

[0030] The connecting post 45 includes a post body 452 and a head 451. One end of the post body 452 is connected to the center of the head 451. The rear section of the post body 452 is provided with an annular groove 454 along its circumference. The edge of the other end face of the post body 452 is provided with a clearance notch 453 along its axial direction. The clearance notch 453 extends to the annular groove 454. The locking plate 5 is a ring-shaped structure. The inner wall of its central through hole is provided with a limiting protrusion 51 that cooperates with the annular groove 454.

[0031] In this example, the number of the clearance gaps 453 is two, and they are set in a relatively mirror image.

[0032] In this example, the column 452 is a cylindrical structure.

[0033] In this example, a limiting member 6 is also included. The limiting member 6 includes a base plate, and the two ends of the base plate are provided with locking rods 61 that cooperate with the clearance notch 453. The locking rods 61 extend to the annular groove 454. It should be noted that after the column 452 of the connecting column 45 passes through the witness structure once, the limiting protrusion 51 of the locking plate 5 is aligned with the clearance notch 453 of the column 452, so that the locking plate 5 moves along the axis of the column 452 to the annular groove 454. Then, the locking plate 5 is rotated so that the limiting protrusion 51 leaves the clearance notch 453 and is located between the two side walls of the annular groove 454, thus restricting the limiting protrusion 51 and preventing the locking plate 5 from shaking. Then, the locking rods 61 of the limiting member 6 are inserted into the annular groove 454 along the clearance notch 453 to prevent the limiting protrusion 51 of the locking plate 5 from rotating to the clearance notch 453.

[0034] In this example, the shock absorption mechanism 4 also includes a spacer 44, which is fitted onto the connecting bolt and located between the engine mount 3 base plate and the washer 43.

[0035] In this example, the protective ring 41 is a bowl-shaped structure with a flange extending outward from the bottom.

[0036] In this example, the flange extends into the mounting hole in the middle of the top plate 21 of the harvester frame 2.

[0037] In this example, the bottom shape of one end of the shock-absorbing pad 42 matches the bottom shape of the protective ring 41.

[0038] It should be noted that, Figure 1 and Figure 2 The locking plate and part of the column are not marked. During installation, the column passes through the base plate of the machine foot and extends outward. The elastic locking plate of the shock-absorbing pad is attached to the base plate of the machine foot to prevent the connecting column from falling off.

[0039] Instructions for use: After the connecting column 45 presses against the spacer 44 and is locked by the locking plate 5 and the limiting piece 6, both of the pair of shock-absorbing pads 42 are in a proper compressed state. When the whole machine is working, after the engine 1 is subjected to the belt tension F, the left shock-absorbing mechanism 4 is pulled and the right shock-absorbing mechanism 4 is compressed. At this time, the shock-absorbing pad 42 on the lower side of the top plate 21 of the left harvester frame 2 is compressed, while the shock-absorbing pad 42 on the upper side of the top plate 21 of the left harvester frame 2 rebounds. At the same time, the shock-absorbing pad 42 on the upper side of the top plate 21 of the right harvester frame 2 is compressed, while the shock-absorbing pad 42 on the lower side of the top plate 21 of the right harvester frame 2 rebounds, thereby effectively ensuring the shock absorption performance of the engine 1.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shock-absorbing device for a harvester engine, characterized in that, It includes a pair of protective rings, a pair of shock-absorbing pads, washers, a connecting post, and a locking plate; the pair of protective rings are positioned with their openings facing away from each other on the upper and lower sides of the harvester frame top plate; one end of each pair of shock-absorbing pads is supported inside the pair of protective rings; the washers are positioned below the shock-absorbing pads on the lower side of the harvester frame top plate; the engine mounts are supported on the shock-absorbing pads on the upper side of the harvester frame top plate; the connecting post passes through the washers, the pair of shock-absorbing pads, the pair of protective rings, the harvester frame top plate, and the engine mount base plate sequentially from bottom to top. The connecting column includes a column body and a head. One end of the column body is connected to the center of the head. The rear section of the column body has an annular groove along its circumference. The edge of the other end face of the column body has a clearance notch along its axial direction. The clearance notch extends to the annular groove. The locking plate has a ring-shaped structure, and the inner wall of its central through hole has a limiting protrusion that cooperates with the annular groove.

2. The shock absorption device for a harvester engine according to claim 1, characterized in that, The number of the clearance gaps is two, and they are set in a relatively mirror image.

3. A shock-absorbing device for a harvester engine according to claim 1, characterized in that, The column is a cylindrical structure.

4. A shock-absorbing device for a harvester engine according to claim 2, characterized in that, It also includes a limiting component, which includes a base plate with locking rods at both ends that cooperate with the clearance notch, and the locking rods extend into the annular groove.

5. A shock-absorbing device for a harvester engine according to claim 1, characterized in that, It also includes a spacer sleeve, which is fitted onto the connecting bolts and located between the engine mount plate and the washer.

6. A shock-absorbing device for a harvester engine according to claim 1, characterized in that, The protective ring is a bowl-shaped structure with a flange extending outward from the bottom.

7. A shock-absorbing device for a harvester engine according to claim 6, characterized in that, The flange extends into the mounting hole in the middle of the top plate of the harvester frame.

8. A shock-absorbing device for a harvester engine according to claim 6, characterized in that, The bottom shape of one end of the shock-absorbing pad matches the bottom shape of the protective ring.

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