Crankshaft oscillating bar

Abstract

The utility model discloses a crankshaft oscillating bar which comprises a base body and an oscillating bar body, a first connecting part and a second connecting part which extend outwards are respectively arranged between the base body and the oscillating bar body, the first connecting part is provided with a first groove with a single-side chamfer, and the second connecting part is provided with a second groove with double-side chamfers. The included angle between the first groove and the second groove is provided with a plurality of electric welding gap filling layers. The utility model has the advantages of higher quality, simple structure, low cost, no insufficient strength and no phenomenon of breakage of the whole stressed position.

Description

Technical Field

[0001] The utility model relates to the field of food processing machinery, in particular to a crankshaft swing arm. Background Art

[0002] The crankshaft pendulum is a mechanical transmission device widely used in industry and civil use. Its main function is to realize the working cycle and complete energy conversion in the process of manufacturing products. As an important transmission mechanism, the crankshaft pendulum transmits the power output of the motor from a single axial rotation to the horizontal or vertical direction, drives other working mechanisms to output work, and completes the cycle process. In this way, the casting stress existing in the crankshaft pendulum made by casting, and the influence of high torque and vibration impact force during operation, lead to the concentration of pendulum stress; therefore, the internal stress should be eliminated as much as possible during the manufacture of the crankshaft pendulum. In general, the crankshaft pendulum is a special-shaped part, especially the horizontal and vertical axial planes are at a certain angle, and the structure is relatively complex. It is common to use sand casting for mass production of crankshaft pendulums.

[0003] Affected by materials, casting processes (such as casting process, demoulding process), etc., sand mold or precision cast crankshaft pendulum has defects, and the existence of casting stress makes the crankshaft pendulum force structure complex. In daily production, sand mold or precision cast crankshaft pendulum is affected by operating stress, casting stress and casting defects (such as sand holes, sand slag, coarse grains) due to long continuous use time, and most of the crankshaft pendulum is prone to fracture and other faults. However, food processing machinery has a high frequency of loading and unloading, and the overall stress position of the crankshaft pendulum often breaks. The overall stress position of the crankshaft pendulum is generally near the connection between the base and the rod. Therefore, in order to avoid the shortcomings existing in the prior art, it is necessary to improve the prior art. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art and to provide a crankshaft rocker with a stable structure and low cost.

[0005] The utility model is realized by the following technical solutions:

[0006] A crankshaft rocker arm comprises a base body and a rocker arm body, wherein a first connecting portion and a second connecting portion extending outward are respectively provided between the base body and the rocker arm body, wherein the first connecting portion has a first groove with a single-sided chamfer, and the second connecting portion has a second groove with a double-sided chamfer, and the angle between the first groove and the second groove is respectively provided with several layers of electric welding caulking layers.

[0007] Furthermore, the thickness of each of the plurality of electric welding filling layers is 2 mm to 3 mm.

[0008] Furthermore, the number of the several layers of electric welding filling layers is 4 to 6 layers.

[0009] Furthermore, the included angle between the second groove and the first groove is 45° to 70°.

[0010] Furthermore, the included angle between the second groove and the first groove is 55°.

[0011] Furthermore, the inclination angle of the first groove is 35° to 50°.

[0012] Furthermore, the inclination angle of the first groove is 45°.

[0013] Furthermore, the base body and the rocker body are made of carbon structural steel plates, low alloy structural steel plates or stainless steel plates.

[0014] Furthermore, the base body and the swing arm body are respectively provided with mounting holes and screw holes.

[0015] Furthermore, the base body has a reinforcing rib connected to the extending start end of the first connecting portion, and the reinforcing rib is integrally formed with the first connecting portion.

[0016] Compared with the prior art, the first connection part and the second connection part of the utility model are respectively provided with a first groove and a second groove, and a fixed connection between the first connection part and the second connection part is achieved by respectively providing a plurality of layers of electric welding caulking layers at the angle between the first groove and the second groove, so that the connection between the first connection part and the second connection part is more stable, there will be no problem of insufficient strength, and there will be no phenomenon of fracture at the overall stress-bearing position. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic diagram of a fractured state of a crankshaft rocker produced by casting in the background technology of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the crankshaft rocker arm of the utility model;

[0020] Figure 3 for Figure 2 AA section view.

[0021] In the figure: 1-crack; 2-base body; 3-rocker body; 4-first connecting part; 5-second connecting part; 6-electric welding caulking layer; 7-reinforcement rib. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1 As shown in the figure, during the operation of the equipment, the crankshaft swing rod is under the stress state of casting stress and operating pressure for a long time. The casting stress point and stress point of the crankshaft swing rod are prone to cracks 1, and the equipment can only stop running and the company stops production. Therefore, when the crankshaft swing rod has quality problems, the equipment is stopped, which directly affects the production efficiency and survival ability of the company.

[0024] like Figure 2 and Figure 3 A crankshaft swing arm of the utility model shown in the figure comprises a base body 2 and a swing arm body 3, wherein a first connecting portion 4 and a second connecting portion 5 extending outward are respectively arranged between the base body 2 and the swing arm body 3, wherein the first connecting portion 4 has a first groove with a single chamfer, and the second connecting portion 5 has a second groove with a double chamfer, and the angle between the first groove and the second groove is respectively provided with a plurality of layers of electric welding caulking layers 6. The electric welding caulking layers 6 not only have a high overall strength, but also have a high connection strength with the first connecting portion 4 and the second connecting portion 5, thereby improving the overall force strength of the crankshaft swing arm.

[0025] The thickness of each of the several layers of electric welding caulking layers 6 is 2 mm to 3 mm, so that the connection between each layer is more stable.

[0026] The number of the plurality of electric welding caulking layers 6 is 4 to 6 layers.

[0027] The angle between the second groove and the first groove is 45° to 70°. As a specific implementation, the angle between the second groove and the first groove is 55°, which is conducive to reducing the difficulty of processing.

[0028] The inclination angle of the first groove is 35° to 50°. As a specific implementation, the inclination angle of the first groove is 45°. Of course, the inclination angle of the first groove can also be adjusted according to the equipment operation requirements.

[0029] The base body 2 and the rocker arm body 3 are made of carbon structural steel plates, low alloy structural steel plates or stainless steel plates, which are more suitable for use with a high-strength crankshaft rocker arm.

[0030] The base body 2 and the swing arm body 3 are respectively provided with mounting holes and screw holes, which are convenient for assembly and disassembly.

[0031] The base body 2 has a reinforcing rib 7 connected to the extending start end of the first connecting portion 4. The reinforcing rib 7 is integrally formed with the first connecting portion 4. The reinforcing rib 7 can increase the overall stress strength of the crankshaft rocker arm and reduce breakage.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A crankshaft rocker, characterized in that: It includes a base body and a rocker body, wherein a first connecting portion and a second connecting portion extending outward are respectively provided between the base body and the rocker body, the first connecting portion has a first groove with a single-sided chamfer, the second connecting portion has a second groove with double-sided chamfers, and the angle between the first groove and the second groove is respectively provided with several layers of electric welding filling layers.

2. The crankshaft rocker according to claim 1, characterized in that: The thickness of each of the several layers of electric welding filling layers is 2mm to 3mm.

3. The crankshaft rocker according to claim 1, characterized in that: The number of the several layers of electric welding filling layers is 4 to 6 layers.

4. The crankshaft rocker according to claim 1, characterized in that: The included angle between the second groove and the first groove is 45° to 70°.

5. The crankshaft rocker according to claim 4, characterized in that: The included angle between the second groove and the first groove is 55°.

6. The crankshaft rocker according to claim 1, characterized in that: The inclination angle of the first groove is 35° to 50°.

7. The crankshaft rocker according to claim 6, characterized in that: The inclination angle of the first groove is 45°.

8. The crankshaft rocker according to claim 1, characterized in that: The base body and the rocker body are made of carbon structural steel plates, low alloy structural steel plates or stainless steel plates.

9. The crankshaft rocker according to claim 1, characterized in that: The base body and the swing arm body are respectively provided with mounting holes and screw holes.

10. The crankshaft rocker according to claim 1, characterized in that: The base body has a reinforcing rib connected to the extending start end of the first connecting portion, and the reinforcing rib is integrally formed with the first connecting portion.

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