Crank unbalance loading balancing device of crank press
By installing an eccentric counterweight on the crankshaft of the crank press, the noise and vibration problems caused by the crank's unbalanced load are solved, achieving dynamic balance and vibration reduction of the equipment, and improving the equipment's operational stability and service life.
Patent Information
- Application Number
- CN202422241189.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The crankshaft of a crank press generates noise and vibration due to off-center loading, leading to wear and a decline in equipment operating condition, which affects processing quality.
An eccentric counterweight is installed on the crankshaft, and the eccentric counterweight is fixed by an expansion sleeve and designed as a cam to balance the eccentric weight of the crank and achieve dynamic balance.
It effectively reduces vibration and noise, reduces crankshaft and bearing wear, extends equipment maintenance cycles, and improves equipment utilization.
Smart Images
Figure CN223671917U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to crank press technical field, concretely relates to a crank press crank eccentric load balancing device. BACKGROUND
[0002] Crank press refers to the press that adopts crank connecting rod as the working mechanism, and is widely applied to forging, cold stamping, hot die forging and other processes. The crankshaft (i.e. main transmission shaft) is the core component of the crank press. Since the crank center of the crankshaft is different from the rotation center, the crankshaft will cause noise and vibration due to eccentric load when rotating, and the eccentric load will also aggravate the wear and temperature rise problems of the crankshaft, bearing bush and the like, thereby affecting the equipment operation state and reducing the product processing quality. Therefore, it is necessary to reduce or eliminate the adverse effects caused by the eccentric load of the crankshaft.
[0003] It should be noted that the above content belongs to the technical cognition range of the inventor and does not necessarily constitute the prior art. UTILITY MODEL CONTENT
[0004] The utility model discloses a crank press crank eccentric load balancing device, which has the advantages of reasonable structure design, reduced vibration noise caused by eccentric load, reduced wear of the crankshaft and bearing bush, prolonged equipment maintenance cycle, improved equipment utilization and the like.
[0005] The utility model discloses the above-mentioned purposes are realized through the following technical schemes:
[0006] A crank press crank eccentric load balancing device, comprising a crankshaft, wherein the crankshaft is provided with a crank in the middle part, an eccentric weight is arranged at one end of the crankshaft through an expansion sleeve, and the eccentric weight and the crank are located on both sides of the crankshaft.
[0007] The eccentric weight is designed as a cam.
[0008] A counterweight block is connected to the eccentric weight through threads.
[0009] The utility model adopts the above structure and can bring the following beneficial effects:
[0010] The installation of the eccentric weight on the crankshaft can effectively offset the adverse effects caused by the eccentric crank. The eccentric weight is installed on the crankshaft through the expansion sleeve, which is not only convenient and reliable, but also relatively flexible in installation position. The eccentric weight is designed as a cam, which can not only balance the eccentric weight of the crank on the crankshaft by relying on the eccentric weight of the cam, but also can be used as a down top material cam, achieving dynamic balance of the crankshaft without changing the structure of the press. DRAWING DESCRIPTION
[0011] Fig. 1 It is the structure schematic view of the crank press crank eccentric load balancing device of the utility model;
[0012] Fig. 2 It is the side view of the crank press crank eccentric load balancing device of the utility model;
[0013] Fig. 3 It is the structure schematic view of the eccentric load counterweight setting counterweight block of the utility model;
[0014] In the figure, 1, crankshaft, 2, crank, 3, expansion sleeve, 4, eccentric counterweight, 5, cam, 6, counterweight block, 7, crank press, 8, screw. Specific implementation mode:
[0015] In order to more clearly explain the overall concept of the utility model, the following detailed description is made in the form of example in conjunction with the attached drawings of the specification.
[0016] In the following description, a lot of specific details are set forth in order to fully understand the utility model, however, the utility model can also be implemented in other ways different from the description herein, therefore, the protection scope of the utility model is not limited by the following disclosed specific embodiments.
[0017] Each embodiment in the specification adopts progressive mode and the same and similar parts between each embodiment can be mutually referred to, and each embodiment focuses on the different places from other embodiments.
[0018] In the utility model, unless another explicit provision and limitation, the terms "mount", "set with", "connect", "set" and other terms should be understood in broad sense, for example, can be fixed connection, also can be detachable connection, or integral; can be mechanical connection, also can be electrical connection, also can be communication; can be directly connected, also can be indirectly connected through intermediate medium, can be the communication inside two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.
[0019] As Figs. 1-3 As shown in a kind of crank press crank eccentric load balancing device, including crankshaft 1, the middle part of the crankshaft 1 is equipped with crank 2, one end of the crankshaft 1 is equipped with eccentric counterweight 4 by expansion sleeve 3, the eccentric counterweight 4 and crank 2 are located on both sides of the crankshaft 1, and the eccentric counterweight 4 is used to balance the eccentric weight of crank 2 on the crankshaft 1. By installing eccentric counterweight 4 on the crankshaft 1, the adverse effects caused by the eccentricity of crank 2 can be effectively offset, and by using expansion sleeve 3 to install eccentric counterweight 4 on the crankshaft 1, not only installation is convenient and reliable, but also installation position is relatively flexible.
[0020] The eccentric weight 4 is designed as a cam 5. By designing the eccentric weight 4 as the cam 5, not only the eccentric weight of the crank 2 on the crankshaft 1 can be counterbalanced by the eccentric weight of the cam 5, but also the dynamic balance of the crankshaft 1 can be achieved without changing the structure of the press when the cam is used for the downward material feeding.
[0021] The weight block 6 is threadedly connected on the eccentric weight 4. By designing the weight block 6, the weight can be precisely adjusted, and especially when the later maintenance is performed, the number of the weight blocks 6 can be increased or the weight blocks 6 of different sizes can be changed to precisely adjust the weight. The shape of the weight block 6 can be circular or strip-shaped, and the screw 8 can be used for fastening connection.
[0022] The above specific embodiment cannot be regarded as the limitation of the protection scope of the utility model, and any alternative improvement or change made by the person skilled in the art to the embodiment of the utility model falls within the protection scope of the utility model.
[0023] The unexplained part of the utility model is the known technology of the person skilled in the art.
Claims
1. A crank press crank unbalance balancing device characterized by, The application relates to a crankshaft, which comprises a crankshaft with a crank in the middle, an eccentric weight provided at one end of the crankshaft through an expansion sleeve, and the eccentric weight and the crank are located on both sides of the crankshaft, and the eccentric weight is used for balancing the eccentric weight of the crank.
2. A crank press crank unbalance balancing device according to claim 1, characterized in that, The eccentric weight is designed as a cam.
3. A crank press crank unbalance counterbalance device according to claim 2, characterized in that, A weight block is connected to the eccentric weight through screw threads.