Parallel double-reed damper
By designing a parallel double-spring damper, the vibration control problem of large diesel engines under multiple operating conditions was solved, achieving the optimal vibration reduction effect under different operating conditions and improving the stability and performance of the equipment.
Patent Information
- Application Number
- CN202520672312.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-04-10
AI Technical Summary
Existing spring damper designs are insufficient to meet the vibration control requirements of large diesel engines under various operating conditions, affecting the normal operation and application range of the equipment, and the vibration reduction effect is poor.
Parallel double-spring dampers are adopted. The two dampers are installed and fixed to the free end of the diesel engine crankshaft. The optimal vibration reduction effect is generated by two different dampers under different working conditions. The dampers consist of the first and second dampers A and B, respectively, and are assembled and fixed by expansion and compression.
It achieves effective vibration reduction for large diesel engines under different operating conditions, meets the stable operation requirements under multiple conditions, and improves the overall performance of the equipment.
Smart Images
Figure CN223814299U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mechanical structure design and mechanical vibration control technical field, especially relates to large diesel engine multi -working condition damping requirement, specifically relates to a parallel double spring piece damper, BACKGROUND
[0002] In the field of mechanical vibration control technology, spring damper is a common damping device, its main role is through the spring elasticity and damper oil flow to absorb and consume vibration energy, so as to realize the effective control of vibration. In the field of large diesel engine, because the working condition of equipment is complex and changeable, therefore the performance requirement of damper is higher and higher, not only needs that damper has good damping effect, still limits damper installation space.
[0003] The prior art solution: in the design of the existing spring damper, the size of the damper is usually increased to meet the requirements of a certain working condition. However, this design method often requires higher requirements for the material, processing, assembly, transportation and installation of the damper, which is difficult to operate, low in efficiency, high in cost and time-consuming.
[0004] Problems existing in the prior art: although the existing spring damper design solves the problem of vibration control to some extent, but in actual application, there are still some problems and shortcomings. First of all, the existing damper design often cannot meet the requirements of large diesel engine multi-working condition crankshaft stress, whole machine vibration and transmission torque stability, which affects the normal work of diesel engine and limits the working condition of diesel engine. Secondly, the existing damper design often cannot realize damping parameters and crankshaft allowable stress, which limits the application range of diesel engine to some extent. Finally, the existing damper design cannot reduce vibration well, which affects the overall performance of the equipment to some extent. Utility model content
[0005] The utility model aims at providing a parallel double spring piece damper to solve the above-mentioned problems.
[0006] Technical scheme: a parallel double spring piece damper, the damper is two, the damper and the damper are installed through two shaft hubs, and the fixed end of the diesel engine crankshaft is installed and fixed.
[0007] The damper is assembled by the outer sleeve ring limiting block spring plate assembly and the side gasket, and then the shaft hub ring is pressed into the shaft hub, and finally the side plate and the connecting disc are installed into the outer sealing ring and the inner sealing ring, and then the fastener gasket and the bolt are fixed.
[0008] Beneficial effects: the utility model discloses a parallel connection double spring piece damper, and the damper has two, two through first axle hub and second axle hub installation stop mouth cover into group again with diesel engine crankshaft free end installation fixed, and the optimal damping effect of different working conditions is produced by two different dampers working simultaneously, and two different spring piece dampers can respond to the damping requirement of large diesel engine under different working conditions. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 It is the structure schematic diagram of the parallel connection double spring piece damper of the utility model.
[0010] Figure 2 It is the structure schematic diagram of the first damper A of the utility model.
[0011] Figure 3 It is the structure schematic diagram of the second damper B of the utility model.
[0012] Reference signs: first damper A, second damper B, first axle hub A1, second axle hub B1, first outer sleeve ring A2, first limit block A5, first spring plate assembly A6, first side gasket A7, first side plate A3, first coupling disc A4, first outer sealing ring A8, first inner sealing ring A9, first fastener gasket A10, first bolt A11, second outer sleeve ring B2, second limit block B5, second spring plate assembly B6, second side gasket B7, second side plate B3, second coupling disc B4, second outer sealing ring B8, second inner sealing ring B9, second fastener gasket B10, second bolt B11. DETAILED DESCRIPTION
[0013] The technical scheme of the utility model will be described below in conjunction with the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the scope of the utility model protection.
[0014] In the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relation shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as the limitation of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0015] In the description of the utility model, need explanation, unless another explicit provision and limitation, term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can pass through intermediate medium indirectly connected, can be two elements inside the communication.For ordinary skilled in the art, can understand the concrete meaning of the above-mentioned term in the utility model according to specific circumstances.In addition, the technical features involved in the different embodiments of the utility model described below can be combined as long as they do not conflict with each other.
[0016] A parallel double-spring damper, as shown in Figure 1 , comprising: a first damper A and a second damper B;
[0017] In one embodiment, as shown in Figures 1 to 2 , the first damper A and the second damper B are respectively installed through the first shaft hub A1 and the second shaft hub B1.
[0018] In one embodiment, as shown in Figures 1 to 2 , the first damper A and the second damper B are the same structure.
[0019] In one embodiment, as shown in Figures 1 to 2 , the first damper A is embedded in the second damper B. Figures 1 to 2 In one embodiment, as shown in , the first damper A is composed of a first outer sleeve A2, a first limiting block A5, a first spring plate assembly A6, a first side gasket A7, a first side plate A3, a first coupling disc A4, a first outer sealing ring A8, a first inner sealing ring A9, a first fastener gasket A10 and a first bolt A11
[0020] The first limiting block A5 and the first spring plate assembly A6 are provided with several groups and are installed in an intersecting circumferential array between the first outer sleeve A2 and the first shaft hub A1, the first side gasket A7 is installed between the first limiting block A5 and the first spring plate, the first side plate A3 and the first coupling disc A4 are respectively installed on the two sides of the first outer sleeve A2 and the first shaft hub A1, and the first limiting block A5, the first spring plate assembly A6 and the first side gasket A7 are located between the first side plate A3 and the first coupling disc A4, the first outer sealing ring A8 and the first inner sealing ring A9 are respectively installed at the inner and outer connecting positions of the first outer sleeve A2, the first side plate A3 and the first coupling disc A4, and the first bolt A11 cooperates with the first fastener gasket A10 to sequentially pass through the first side plate A3, the first limiting block A5 and the first coupling disc A4 to fix them.
[0021] In one embodiment, as shown in Figures 1 to 2 The second damper B is composed of a second outer sleeve B2, a second limiting block B5, a second spring plate assembly B6, a second side gasket B7, a second side plate B3, a second coupling disc B4, a second outer sealing ring B8, a second inner sealing ring B9, a second fastener gasket B10 and a second bolt B11. The second limiting block B5 and the second spring plate assembly B6 are provided with several groups and are installed in an intersecting circumferential array between the second outer sleeve B2 and the second shaft hub B1, the second side gasket B7 is installed between the second limiting block B5 and the second spring plate, the second side plate B3 and the second coupling disc B4 are respectively installed on the two sides of the second outer sleeve B2 and the second shaft hub B1, and the second limiting block B5, the second spring plate assembly B6 and the second side gasket B7 are located between the second side plate B3 and the second coupling disc B4, the second outer sealing ring B8 and the second inner sealing ring B9 are respectively installed at the inner and outer connecting positions of the second outer sleeve B2, the second side plate B3 and the second coupling disc B4, and the second bolt B11 cooperates with the second fastener gasket B10 to sequentially pass through the second side plate B3, the second limiting block B5 and the second coupling disc B4 to fix them.
[0022] Working principle: the damper is provided with two dampers; the first damper A and the second damper B are installed in a socket sleeve to form a diesel engine crankshaft free end mounting and fixing.
[0023] The first damper A is assembled by expanding and pressing the first outer sleeve A2, the first limiting block A5, the first spring plate assembly A6 and the first side gasket A7 into the first shaft hub A1, and finally fixed by the first outer sealing ring A8, the first inner sealing ring A9, the first side plate A3, the first coupling disc A4, the first gasket and the first bolt A11.
[0024] The second damper B is assembled by expanding and pressing the second outer sleeve B2, the second limiting block B5, the second spring plate assembly B6 and the second side gasket B7 into the second shaft hub B1, and finally fixed by the second outer sealing ring B8, the second inner sealing ring B9, the second side plate B3, the second coupling disc B4, the second gasket and the second bolt B11.
[0025] The utility model discloses the optimal damping effect of different working conditions produced by the simultaneous work of the above two different dampers.
[0026] Obviously, the above embodiments are merely examples for clearly illustrating, and are not the limitation of the embodiments. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, it is not necessary and also impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.
Claims
1. A parallel double-spring damper, characterized in that, include: First damper and second damper; The first damper and the second damper are respectively fitted into the first shaft hub and the second shaft hub mounting stop to form a unit, and then installed and fixed to the free end of the diesel engine crankshaft.
2. The parallel double-spring damper according to claim 1, characterized in that, The first damper has the same structure as the second damper.
3. The parallel double-spring damper according to claim 1, characterized in that, The first damper is embedded in the second damper.
4. The parallel double-spring damper according to claim 1, characterized in that, The first damper consists of a first outer ring, a first limiting block, a first spring plate assembly, a first side gasket, a first side plate, a first connecting disc, a first outer sealing ring, a first inner sealing ring, a first fastener gasket, and a first bolt. The first limiting block and the first spring plate assembly are provided in several groups and are installed between the first outer ring and the first shaft hub in a cross-circular array. The first side gasket is installed between the first limiting block and the first spring plate. The first side plate and the first connecting plate are respectively installed on both sides of the first outer ring and the first shaft hub, and the first limiting block, the first spring plate assembly and the first side gasket are located between the first side plate and the first connecting plate. The first outer sealing ring and the first inner sealing ring are respectively installed at the inner and outer connection points of the first outer ring and the first side plate and the first connecting plate. The first bolt and the first fastener gasket cooperate to pass through the first side plate, the first limiting block and the first connecting plate in sequence to fix them.
5. The parallel double-spring damper according to claim 1, characterized in that, The second damper consists of a second outer ring, a second limiting block, a second spring plate assembly, a second side gasket, a second side plate, a second connecting disc, a second outer sealing ring, a second inner sealing ring, a second fastener gasket, and a second bolt. The second limiting block and the second spring plate assembly are provided in several groups and are installed between the second outer ring and the second shaft hub in a cross-circular array. The second side gasket is installed between the second limiting block and the second spring plate. The second side plate and the second connecting plate are respectively installed on both sides of the second outer ring and the second shaft hub, and the second limiting block, the second spring plate assembly and the second side gasket are located between the second side plate and the second connecting plate. The second outer sealing ring and the second inner sealing ring are respectively installed at the inner and outer connection points of the second outer ring and the second side plate and the second connecting plate. The second bolt and the second fastener gasket cooperate to pass through the second side plate, the second limiting block and the second connecting plate in sequence to fix them.