Upper damping mechanism and generator set

Abstract

The utility model discloses an upper damping mechanism and a generator set. The upper vibration reduction mechanism and the generator set comprise a connecting part connected with a set body, a first-stage vibration reducer and a second-stage vibration reducer, the first-stage vibration reducer and the second-stage vibration reducer are used for vibration reduction, the lower end of the first-stage vibration reducer is detachably installed on the connecting part, and the upper end of the first-stage vibration reducer is detachably connected with the lower end of the second-stage vibration reducer. According to the upper vibration reduction mechanism and the generator set, upward jumping of the generator set body can be well buffered, and the vibration reduction effect is good.

Description

Technical Field

[0001] This utility model relates to the field of generator set vibration reduction technology, and in particular to an upper vibration reduction mechanism and a generator set. Background Technology

[0002] During operation, generator sets typically have an upper vibration damping mechanism at the bottom of the unit to reduce vibration. However, for vehicle-mounted generator sets, the operating environment is on a vehicle, and the vehicle vibrates during travel, especially when passing over speed bumps or uneven roads. This causes the generator set to bounce up and down within its casing, pulling on the upper vibration damping mechanism at the bottom, making it prone to damage. Although some generator sets have a buffer structure at the top, the vibration damping effect is not ideal. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an upper vibration damping mechanism and generator set that can be applied to vehicle-mounted multi-stage vibration damping.

[0004] To solve the above problems, this utility model provides an upper vibration damping mechanism, which includes a connecting part connected to the unit body and a primary vibration damper and a secondary vibration damper for vibration damping. The lower end of the primary vibration damper is detachably installed on the connecting part, and the upper end of the primary vibration damper is detachably connected to the lower end of the secondary vibration damper.

[0005] Furthermore, the connecting portion extends vertically to form a limiting portion, one side of the primary damper abuts against the limiting portion, and the thickness direction of the connecting portion restricts the primary damper.

[0006] Furthermore, the primary vibration damper is a damping plate with a bend.

[0007] Furthermore, the damping plate includes a first plate for connection with the connecting part, a second plate for increasing the height, a third plate for connection with the secondary damper, and a bending part for connecting the first plate, the second plate and the third plate. The first plate and the second plate are connected by a bending part, and the second plate and the third plate are connected by another bending part.

[0008] Furthermore, the secondary vibration damper includes an upper connecting plate for connecting to the primary vibration damper, a lower connecting plate for connecting to the external housing, and a reinforcing plate for increasing the strength of the upper connecting plate. The lower connecting plate is fixed to the upper connecting plate, and the reinforcing plate is fixed between the upper connecting plate and the lower connecting plate.

[0009] Furthermore, the lower connecting plate is provided with a reinforcing plate for increasing the strength of the lower connecting plate. The reinforcing plate is located on the long side of the lower connecting plate and is perpendicular to the lower connecting plate.

[0010] Furthermore, the lower connecting plate includes a first connecting body, a second connecting body, and a third connecting body. The first connecting body is used to connect to the first-stage shock absorber. The two ends of the first connecting body are respectively connected to the second connecting body. Each second connecting body is provided with a third connecting body. The third connecting body is used to connect to the upper connecting plate. The second connecting plate is inclined.

[0011] Furthermore, it also includes a rubber pad, which is installed between the primary damper and the secondary damper.

[0012] To solve the above problems, this utility model also provides a generator set, which includes a generator body for generating electricity, a housing for mounting the generator body, and an upper vibration damping mechanism as described above for buffering the generator body. The connecting part is located at the upper end of the generator body, the secondary vibration damper is mounted on the housing, and a lower vibration damper is provided at the lower end of the generator body.

[0013] Furthermore, the lower vibration damper includes a tray and a vibration damping column. The tray is used to connect to the lower end of the unit body, and the vibration damping column is disposed on the tray and connected to the lower end of the outer casing by bolts.

[0014] This utility model's upper vibration damping mechanism and generator set utilize two-stage vibration damping with a primary vibration damper and a secondary vibration damper, which improves the vibration damping effect and extends the service life. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a preferred embodiment of the generator set of this utility model.

[0016] Figure 2 This is a schematic diagram of the connection between the upper vibration damping mechanism and the unit body and outer shell.

[0017] Figure 3 This is a schematic diagram of the upper vibration damping mechanism.

[0018] Figure 4 This is the front view of the upper vibration damping mechanism.

[0019] Figure 5 This is a structural diagram of the connecting part.

[0020] Figure 6 This is a schematic diagram of the structure of a primary vibration damper.

[0021] Figure 7 This is a schematic diagram of a two-stage vibration damper.

[0022] Figure 8 This is a structural schematic diagram of the lower connecting plate.

[0023] Figure 9 This is a bottom view of the upper connecting plate.

[0024] Figure 10 This is a structural diagram of the mounting port.

[0025] Figure 11 A schematic diagram of the lower vibration damper.

[0026] Figure 12 This is a cross-sectional view of the vibration damping column.

[0027] The meanings of the labels in the attached diagram are as follows:

[0028] Unit body 1, cylinder head cover 11, outer shell 2, mounting port 21, mounting step 22, upper vibration damping mechanism A, connecting part 3, limiting part 31, second connecting hole 32, primary vibration damper 4, first plate 41, second plate 42, third plate 43, bending part 44, first connecting hole 45, third connecting block 46, rubber pad 5, secondary vibration damper 6, upper connecting plate 61, protrusion 611, lower connecting plate 62, first connecting body 621, second connecting body 622, third connecting body 623, reinforcing plate 63, strengthening plate 64, lower vibration damper B, tray 7, support lug 71, vibration damping column 8, first bushing 81, second bushing 82, protective sleeve 83, gasket 84. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] like Figure 1 and Figure 2 As shown, a preferred embodiment of the generator set of this utility model includes a generator body 1 for generating electricity, a housing 2 for mounting the generator body 1, an upper vibration damping structure A and a lower vibration damper B for buffering the generator body 1. The top of the generator body 1 is connected to the housing 2 through the upper vibration damping mechanism A, so that the generator body 1 can be buffered when it bounces upward. The lower vibration damper B is installed at the bottom of the generator body and is connected to the bottom of the housing 2. The lower vibration damper B is used to buffer the bounce and vibration of the generator body 1.

[0031] The outer casing 2 is provided with a mounting port 21 for mounting the upper vibration damping mechanism A, and the upper vibration damping mechanism A is installed in the mounting port 21.

[0032] like Figure 3 and Figure 4As shown, the upper vibration damping mechanism A includes a connecting part 3, a primary vibration damper 4, a rubber pad 5, a secondary vibration damper 6, and a lower vibration damper. The connecting part 3 is located on the unit body 1. The lower end of the primary vibration damper 4 is detachably mounted on the connecting part 3, and the upper end of the primary vibration damper 4 is detachably connected to the lower end of the secondary vibration damper 6. The rubber pad 5 is located between the primary vibration damper 4 and the secondary vibration damper 6, and the upper end of the secondary vibration damper 6 is connected to the housing 2 of the engine unit. Both the primary vibration damper 4 and the secondary vibration damper 6 are used for vibration damping. The rubber pad 5 is used to reduce friction between the primary vibration damper 4 and the secondary vibration damper 6, while increasing the height of the vibration damping structure to meet height requirements. The rubber pad 5 has a certain degree of elasticity, thus providing slight vibration damping.

[0033] like Figure 5 As shown, the connecting part 3 extends vertically to form a limiting part 31, making the connecting part 3 and the limiting part 31 L-shaped. One side of the primary vibration damper 4 abuts against the limiting part 31, ensuring that the primary vibration damper 4 will not wobble left and right when mounted on the connecting part 3, effectively limiting the primary vibration damper 4 in the left and right directions. The connecting part 3 itself limits the primary vibration damper 4 in its thickness direction, that is, it can limit the primary vibration damper 4 in the front and back directions. The connecting part 3 is provided on the cylinder head cover 11 of the unit body 1 and is integrally formed with the cylinder head cover 11, which can reduce assembly steps. The connecting part 3 is usually located on the top of the unit body 1, which can better dampen vibration. Adding the limiting part 31 to the connecting part 3 can also increase the strength of the connecting part 3, ensuring that the connecting part 3 is not easily damaged.

[0034] like Figure 6As shown, the primary vibration damper 4 is a damping plate with a bending portion 44. The damping plate is bent along its long side to form the bending portion 44. The damping plate is bent twice along its long side, resulting in two bending portions 44. Specifically, the damping plate includes a first plate 41, a second plate 42, a third plate 43, and two bending portions 44. The first plate 41 and the second plate 42 are connected by one bending portion 44, and the second plate 42 and the third plate 43 are connected by the other bending portion 44. By providing two bending portions 44, the vibration amplitude is shared by the first plate 41 and the third plate 43 during vibration damping. That is, compared with only one bending portion 44, the vibration amplitude of the first plate 41 and the third plate 43 is smaller during vibration damping, which can extend the service life of the damping plate. In addition, the height of the primary vibration damper 4 can be increased by using the second plate 42. The first plate 41 is provided with a first connecting hole 45, and the connecting part 3 is provided with a second connecting hole 32. The first connecting hole 45 and the second connecting hole 32 are adapted to each other. Bolts are installed in the first connecting hole 45 and the second connecting hole 32 to connect the first plate 41 and the connecting part 3, realizing a detachable connection and facilitating the disassembly and assembly of the primary vibration damper 4 and the connecting part 3. The third plate 43 is provided with a third connecting hole for installing bolts.

[0035] The rubber pad 5 has a through hole for the bolt to pass through. The center of the rubber pad 5 is concave inward, which can distribute stress more evenly, better absorb and disperse vibration energy, and reduce the transmission of vibration.

[0036] like Figure 7 As shown, the secondary vibration damper 6 includes an upper connecting plate 61, a lower connecting plate 62, and a reinforcing plate 63. The lower connecting plate 62 is fixed to the upper connecting plate 61, typically by welding. The reinforcing plate 63 is fixed between the upper connecting plate 61 and the lower connecting plate 62; that is, the upper end of the reinforcing plate 63 is welded to the upper connecting plate 61, and the lower end of the reinforcing plate 63 is welded to the lower connecting plate 62. The reinforcing plate 63, positioned between the lower connecting plate 62 and the upper connecting plate 61, retains the vibration damping function while preventing excessive deformation of the lower connecting plate 62. The upper connecting plate 61 is fixed to the outer casing 2 and located within the mounting opening 21 of the outer casing 2.

[0037] like Figure 8As shown, reinforcing plates 64 are also provided on both sides of the lower connecting plate 62. That is, the reinforcing plates 64 are provided on the long side of the lower connecting plate 62, thereby increasing the stress strength of the lower connecting plate 62 when bending on the long side, that is, it can withstand greater force. The reinforcing plates 64 are perpendicular to the lower connecting plate 62, further increasing the strength. The reinforcing plates 64 are integral with the lower connecting plate 62, which allows the reinforcing plates 64 to better share the stress of the lower connecting plate 62 when bending on the long side. The lower connecting plate 62 includes a first connecting body 621, a second connecting body 622, and a third connecting body 623. The first connecting body 621 is horizontally arranged to facilitate contact between the first connecting body 621 and the rubber pad 5. The reinforcing plate 64 is disposed on the first connecting body 621. The first connecting body 621 is provided with a fourth connecting hole, which is aligned with the through hole on the rubber pad 5 and the third connecting hole on the third plate 43. This allows a bolt to be placed in the third connecting hole, pass through the through hole, and extend into the fourth connecting hole, thereby detachably connecting the third plate 43, the rubber pad 5, and the first connecting body 621 together, that is, connecting the primary vibration damper 4, the rubber pad 5, and the secondary vibration damper 6. The two ends of the first connecting body 621 are respectively connected to the second connecting bodies 622. The second connecting bodies 622 are inclined, and each of the second connecting bodies 622 is provided with a third connecting body. The third connecting body 623 is horizontally arranged to facilitate contact between the third connecting body 623 and the upper connecting plate 61. The lower connecting plate 62 is provided with an inclined second connecting body 622, so that the lower connecting plate 62 has a certain height and can deform and buffer when subjected to an upward force, thereby achieving vibration reduction.

[0038] The reinforcing plate 63 is U-shaped, with the opening of the U-shape facing downwards at both ends of the connecting plate 62. That is, the opening of the U-shape is set horizontally. In this way, the reinforcing plate 63 can increase strength while also having a certain deformation capacity, thereby ensuring the deformation capacity of the lower connecting plate 62 and thus preserving the vibration damping function of the lower connecting plate 62.

[0039] like Figure 9 and Figure 10 As shown, the upper connecting plate 61 is provided with a protrusion 611, that is, a portion of the upper connecting plate 61 protrudes downwards. The lower connecting plate 62 is welded and fixed to the protrusion 611. Because the protrusion 611 protrudes downwards, there is a certain amount of operating space when welding the lower connecting plate 62, which facilitates the welding of the upper connecting plate 61 and the lower connecting plate 62. Mounting steps 22 are provided around the mounting opening 21 of the outer casing 2. The protrusion 611 is annular. The portion of the upper connecting plate 61 outside the protrusion 611 fits against the mounting steps 22 and is connected by bolts, thus connecting the upper connecting plate 61 to the outer casing 2. The outer contour of the protrusion 611 matches the contour of the mounting opening 21, enabling quick positioning of the upper connecting plate 61. That is, the protrusion 611 not only connects the lower connecting plate 62 but also positions the upper connecting plate 61.

[0040] like Figure 2 , Figure 11 and Figure 12 As shown, the lower vibration damper B includes a tray 7 and a damping column 8. The tray 7 is used to connect to the lower end of the unit body 1, and the damping column 8 is mounted on the tray 7. The damping column 8 is connected to the lower end of the outer casing 2 by bolts. The tray 7 is provided with lugs 71, which are fixed to the unit body 1 by bolts, thus fixing the tray 7 to the unit body 1. The damping column 8 includes a first bushing 81 and a second bushing 82. The first bushing 81 and the second bushing 82 have a certain height, providing a certain vibration damping capacity. The first bushing 81 passes through the tray 7 and is inserted into the second bushing 82. The first bushing 81 is T-shaped, ensuring that the first bushing 81 can position the second bushing 82 while also ensuring that the first bushing 81 has a certain vibration damping capacity. A protective sleeve 83 is provided inside the first bushing 81 for bolts to pass through, preventing the bolts from directly contacting the first bushing 81, avoiding damage to the first bushing 81, and extending the service life of the first bushing 81. A gasket 84 is also provided on the top of the first bushing 81 to prevent the bolt from directly contacting the first bushing 81 and to extend the service life of the first bushing 81.

[0041] When the unit body 1 bounces upwards, the primary vibration damper 4, rubber pad 5, and secondary vibration damper 6 all dampen and buffer the vibration of the unit body 1, providing good damping effect and long service life. They also effectively buffer the tension on the bottom damping structure. Simultaneously, the connecting part 3 limits the forward, backward, left, and right movement of the primary vibration damper 4, preventing the unit body 1 from swaying in these directions. When the unit body 1 bounces downwards, the damping column 8 provides cushioning, achieving vibration reduction. It should be noted that both the upper damping mechanism A and the lower vibration damper B can dampen the vibration of the unit body 1 itself.

[0042] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, whether directly or indirectly applied to other related technical fields, shall also be within the patent protection scope of this utility model.

Claims

1. An upper vibration damping mechanism, characterized in that: It includes a connection part that connects to the main body of the unit, as well as a primary vibration damper and a secondary vibration damper for vibration reduction. The lower end of the primary vibration damper is detachably mounted on the connection part, and the upper end of the primary vibration damper is detachably connected to the lower end of the secondary vibration damper.

2. The upper vibration damping mechanism as described in claim 1, characterized in that: The connecting part extends vertically to form a limiting part, one side of the primary vibration damper abuts against the limiting part, and the thickness direction of the connecting part restricts the primary vibration damper.

3. The upper vibration damping mechanism as described in claim 1, characterized in that: The primary vibration damper is a damping plate with a bend.

4. The upper vibration damping mechanism as described in claim 3, characterized in that: The damping plate includes a first plate for connection with the connecting part, a second plate for increasing the height, a third plate for connection with the secondary damper, and a bending part for connecting the first plate, the second plate and the third plate. The first plate and the second plate are connected by a bending part, and the second plate and the third plate are connected by another bending part.

5. The upper vibration damping mechanism as described in claim 1, characterized in that: The secondary vibration damper includes an upper connecting plate for connecting to the primary vibration damper, a lower connecting plate for connecting to the external housing, and a reinforcing plate for increasing the strength of the upper connecting plate. The lower connecting plate is fixed to the upper connecting plate, and the reinforcing plate is fixed between the upper connecting plate and the lower connecting plate.

6. The upper vibration damping mechanism as described in claim 5, characterized in that: The lower connecting plate is provided with a reinforcing plate for increasing the strength of the lower connecting plate. The reinforcing plate is located on the long side of the lower connecting plate and is perpendicular to the lower connecting plate.

7. The upper vibration damping mechanism as described in claim 5, characterized in that: The lower connecting plate includes a first connecting body, a second connecting body, and a third connecting body. The first connecting body is used to connect to the first-stage shock absorber. The two ends of the first connecting body are respectively connected to the second connecting body. Each second connecting body is provided with a third connecting body. The third connecting body is used to connect to the upper connecting plate. The second connecting plate is inclined.

8. The upper vibration damping mechanism as described in claim 5, characterized in that: It also includes a rubber pad, which is installed between the primary damper and the secondary damper.

9. A generator set, characterized in that: The device includes a generator body for power generation, an outer casing for mounting the generator body, and an upper vibration damping mechanism as described in any one of claims 1-8 for buffering the generator body. The connecting part is located at the upper end of the generator body, the secondary vibration damper is mounted on the outer casing, and a lower vibration damper is provided at the lower end of the generator body.

10. A generator set as described in claim 9, characterized in that: The lower vibration damper includes a tray and a vibration damping column. The tray is used to connect to the lower end of the unit body, and the vibration damping column is installed on the tray. The vibration damping column is connected to the lower end of the outer shell by bolts.

Images