A melon sieving eccentric mechanism for a melon picking machine

Abstract

The utility model discloses an eccentric mechanism for sifting melons in a melon-sifting machine, comprising a screen, on which at least two groups of rocker mechanisms are arranged; the rocker mechanism comprises a rocker plate symmetrically mounted on the inner side of the screen, a mounting hole is provided on the rocker plate, an eccentric bearing seat is arranged inside the mounting hole, an eccentric bearing is arranged inside the eccentric bearing seat, a rocker shaft is arranged between the eccentric bearings for connection, and the rocker shaft is connected to an external power device. The utility model has a relatively simple structure, and the processing accuracy of the rocker shaft in the rocker mechanism is relatively low, but in practical applications, it does not require excessively high accuracy requirements, so the manufacturing cost is low, and power is transmitted to the rocker shaft, which drives the inner ring of the eccentric bearing and the roller to rotate, thereby changing the relative position between the center of the eccentric bearing and the center of the rocker shaft, and finally drives the screen to sift the melons.

Description

Technical Field

[0001] The utility model relates to the technical field of forestry equipment, in particular to an eccentric mechanism for screening melons using a melon-picking machine. Background Art

[0002] The existing melon-beating machine screen eccentric mechanism generally adopts a crank rocker mechanism. The processing technology of the crank rocker mechanism is relatively complicated, and usually requires the use of high-precision machine tools and processing technology, such as CNC lathes, grinders, etc., to obtain the required accuracy. At the same time, during the heat treatment process of the crankshaft, quenching and tempering operations are also required to improve the hardness and strength of the crankshaft. Therefore, the processing cost of the crank rocker mechanism is relatively high. Utility Model Content

[0003] The utility model aims to provide an eccentric mechanism for screening melons in a melon-beating machine in view of the defects and shortcomings of the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an eccentric mechanism for screening melons in a melon-beating machine, including a screen, and its innovation lies in: at least two sets of rocker mechanisms are arranged on the screen; the rocker mechanism includes a rocker plate symmetrically installed on the inner side of the screen, a mounting hole is opened on the rocker plate, an eccentric bearing seat is arranged inside the mounting hole, an eccentric bearing is arranged inside the eccentric bearing seat, a rocker shaft is arranged between the eccentric bearings for connection, and the rocker shaft is externally connected to a power device.

[0005] Furthermore, a reinforcing rod is arranged on the screen.

[0006] Furthermore, the rocker arm mechanism is symmetrically arranged.

[0007] After adopting the above structure, the utility model has the following beneficial effects:

[0008] The structure of the utility model is relatively simple, and the processing accuracy of the rocker shaft in the rocker mechanism is relatively low, but in actual applications, it does not require excessively high accuracy requirements, so the manufacturing cost is low. The power is transmitted to the rocker shaft, and the rocker shaft drives the inner ring of the eccentric bearing and the roller to rotate, thereby changing the relative position of the center of the eccentric bearing and the center of the rocker shaft, and finally driving the screen to screen the melons. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the utility model;

[0010] Figure 2 It is the front view of the rocker arm mechanism in the utility model.

[0011] Description of reference numerals:

[0012] 1 screen, 2 rocker arm mechanism, 21 rocker arm plate, 22 eccentric bearing seat, 23 eccentric bearing, 24 rocker arm shaft, 3 reinforcing rod. DETAILED DESCRIPTION

[0013] The utility model is further described below in conjunction with the accompanying drawings.

[0014] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and are not used to limit the utility model.

[0015] See also Figure 1-2 , a melon sifting eccentric mechanism of a melon sifting machine comprises a sieve 1, on which at least two groups of rocker mechanisms 2 are arranged; the rocker mechanism 2 comprises a rocker plate 21 symmetrically mounted on the inner side of the sieve, a mounting hole is provided on the rocker plate 21, an eccentric bearing seat 22 is arranged inside the mounting hole, an eccentric bearing 23 is arranged inside the eccentric bearing seat 22, a rocker shaft 24 is arranged between the eccentric bearings 23 for connection, and the rocker shaft 24 is externally connected to a power device. Specifically, the sieve 1, the rocker plate 21, and the eccentric bearing seat 22 are fixed by bolts, the outer ring of the eccentric bearing 23 is fixed to the inner hole of the eccentric bearing seat 22, the rocker shaft 24 is fixed to the inner ring of the eccentric bearing 23, the power is transmitted to the rocker shaft 24, the rocker shaft 24 drives the inner ring of the eccentric bearing 23 and the roller to rotate, so that the relative position between the center of the eccentric bearing 23 and the center of the rocker shaft 24 changes, and finally drives the sieve 1 to sieve the melons.

[0016] In this embodiment, a reinforcing rod 3 is provided on the screen 1 to improve the overall rigidity of the screen 1 and extend the service life.

[0017] In this embodiment, the rocker arm mechanism 2 is symmetrically arranged so that the screen 1 is evenly stressed, which is conducive to screening melons.

[0018] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. An eccentric mechanism for sieving melons in a melon-beating machine, comprising a screen, characterized in that: At least two groups of rocker mechanisms are arranged on the screen; the rocker mechanism includes a rocker plate symmetrically installed on the inner side of the screen, a mounting hole is opened on the rocker plate, an eccentric bearing seat is arranged inside the mounting hole, an eccentric bearing is arranged inside the eccentric bearing seat, a rocker shaft is arranged between the eccentric bearings for connection, and the rocker shaft is externally connected to a power device.

2. The eccentric mechanism for sieving melons in a melon-beating machine according to claim 1, characterized in that: A reinforcing rod is arranged on the screen.

3. The eccentric mechanism for screening melons by a melon-picking machine according to claim 1, characterized in that: The rocker arm mechanisms are symmetrically arranged.

Images