Coaxial double-fan shaft group

Abstract

The utility model discloses a coaxial double-fan shaft group, which comprises a double-hole pressing sheet, a fan blade back plate, a main support plate, a material distribution disc, an auxiliary support plate, fan blades, auger blades, a main shaft and a sleeve, round hole shafts are arranged on the main support plate and the material distribution disc, and mounting holes are arranged on the main support plate and the fan blade back plate. The utility model relates to the technical field of coaxial double-fan shaft sets, in particular to a coaxial double-fan shaft set. The coaxial double-fan shaft group is added, so that the defect that a double-fan straw picking machine is complex in structure is overcome, the using amount of components and bearings is reduced, efficiency is improved, maintenance is easy, and the failure rate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coaxial double - fan shaft groups, and particularly relates to a coaxial double - fan shaft group. Background Technique

[0002] At present, the characteristics of similar products of double - fan straw collectors in the market are that each fan uses a single main shaft independently, and two fans use two main shafts respectively. Each main shaft is driven by a belt connection separately. The disadvantages are low transmission efficiency, complex structure and high failure rate. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the utility model provides a coaxial double - fan shaft group, which solves the problems of low fan transmission efficiency and high failure rate due to complex structure in the existing double - fan straw collectors.

[0004] To achieve the above purposes, the utility model is realized through the following technical solutions: including: double - hole pressing plate, fan blade back plate, main support plate, material distribution plate, auxiliary support plate, fan blades, auger blades, main shaft and sleeve. Circular hole shafts are provided on both the main support plate and the material distribution plate. Mounting holes are provided on the main support plate and the fan blade back plate. The main shaft axially passes through the sleeve and is welded to the sleeve through flange plates installed at both ends. The circular hole shaft on the material distribution plate axially passes through the sleeve and is fixedly welded at the 1 / 2 position of the sleeve. The circular hole shaft on the main support plate axially passes through the sleeve and is respectively fixedly welded at the 1 / 4 positions at both ends of the sleeve;

[0005] A long U - shaped groove is provided on the fan blade back plate;

[0006] The fan blade back plate is inserted into the front end of the saw teeth of the main support plate through the long U - shaped groove, is installed at a 90 - degree angle with the main support plate, and is welded to the sleeve and the main support plate;

[0007] The fan blades are connected to the fan blade back plate through screws.

[0008] Preferably, the auger blades are respectively fixed on both sides of the material distribution plate at both ends of the sleeve and at the 1 / 2 position of the sleeve, and are welded to the sleeve and the material distribution plate, and one ends of the auger blades on both sides are arranged radially at 180 degrees with respect to the material distribution plate.

[0009] Preferably, the auxiliary support plate is connected to the mounting hole of the main support plate through screws and the double - hole pressing plate.

[0010] Preferably, a trapezoidal wedge is designed at the front lower end of the auxiliary support plate. The trapezoidal wedge fits with the wedge - shaped notch at the front end of the saw teeth of the main support plate and extends into the short U - shaped groove of the fan blade back plate itself.

[0011] The utility model provides a coaxial double - fan shaft group, which has the following beneficial effects: By adding the coaxial double - fan shaft group, the disadvantages of the complex structure of the double - fan straw picker are solved, the number of components and the usage amount of bearings are reduced, the efficiency is improved, and the maintenance is easy and the failure rate is reduced. The detachable auxiliary support plate is added, so that the radial force on the fan blade is not easy to bend, the service life of the fan blade is increased, and the disassembly and assembly are convenient. Structurally, on the basis of the original fan shafts of the double - fan straw picker, it is improved to a coaxial double - fan, four groups of guide auger blades are added, and a material distribution plate is installed between the positive and negative auger blades in the middle of the coaxial fan shaft group. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 FIG. is a schematic structural diagram of a coaxial double - fan shaft group described in the present utility model.

[0013] Figure 2 FIG. is a front view of the main support plate of a coaxial double - fan shaft group described in the present utility model.

[0014] Figure 3 FIG. is an installation diagram of the fan blade back plate, the main support plate and the auxiliary support plate of a coaxial double - fan shaft group described in the present utility model.

[0015] Figure 4 FIG. is a front view of the material distribution plate of a coaxial double - fan shaft group described in the present utility model.

[0016] Figure 5 FIG. is a front view of the fan blade back plate of a coaxial double - fan shaft group described in the present utility model.

[0017] Figure 6 FIG. is a front view of the auxiliary support plate of a coaxial double - fan shaft group described in the present utility model.

[0018] Figure 7 FIG. is a front view of the fan blade of a coaxial double - fan shaft group described in the present utility model.

[0019] In the figure: 1 - double - hole pressing piece; 2 - fan blade back plate; 3 - main support plate; 4 - material distribution plate; 5 - auxiliary support plate; 6 - fan blade; 7 - auger blade; 8 - main shaft; 9 - sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0021] Please refer to Figure 1-7, the present utility model provides a technical solution: a coaxial double - fan shaft group, comprising: a double - hole pressing plate 1, a fan blade back plate 2, a main support plate 3, a material distributing plate 4, an auxiliary support plate 5, fan blades 6, auger blades 7, a main shaft 8 and a sleeve 9. Circular holes are provided on both the main support plate 3 and the material distributing plate 4. Mounting holes are provided on the main support plate 3 and the fan blade back plate 2. The main shaft 8 axially passes through the sleeve 9 and is welded to the sleeve 9 through flange plates 10 mounted at both ends. The circular hole on the material distributing plate 4 axially passes through the sleeve 9 and is fixedly welded at the 1 / 2 position of the sleeve 9. The circular hole on the main support plate 3 axially passes through the sleeve 9 and is respectively fixedly welded at the 1 / 4 positions at both ends of the sleeve 9.

[0022] A long U - shaped groove is provided on the fan blade back plate 2.

[0023] The fan blade back plate 2 is inserted into the serrated front end of the main support plate 3 through the long U - shaped groove, is installed at a 90 - degree angle with the main support plate, and is welded to the sleeve 9 and the main support plate 3.

[0024] The fan blades 6 are connected to the fan blade back plate 2 by screws.

[0025] As a preferred technical solution, further, the auger blades 7 are respectively fixed on both sides of the material distributing plate 4 at both ends of the sleeve 9 and at the 1 / 2 position of the sleeve 9, and are welded to the sleeve 9 and the material distributing plate 4, and one end of the auger blades 7 on both sides is arranged radially at a 180 - degree angle with respect to the material distributing plate 4.

[0026] As a preferred technical solution, further, the auxiliary support plate 5 is connected to the mounting hole of the main support plate 3 through screws and the double - hole pressing plate 1;

[0027] As a preferred technical solution, further, a trapezoidal wedge is designed at the front lower end of the auxiliary support plate 5. The trapezoidal wedge fits with the wedge - shaped notch at the serrated front end of the main support plate 3 and extends into the short U - shaped groove of the fan blade back plate 2 itself.

[0028] It should be noted that:

[0029] For the coaxial double - fan shaft group, the main shaft 8 axially passes through the sleeve 9 and is welded to the sleeve 9 through flange plates 10 at both ends. There are two main support plates 3 on the material distributing plate 4. The circular hole on the material distributing plate 4 axially passes through the sleeve 9 and is fixedly welded at the 1 / 2 position of the sleeve 9. The circular hole on the main support plate 3 axially passes through the sleeve 9 and is respectively fixedly welded at the 1 / 4 positions at both ends of the sleeve 9. Mounting holes are provided on the main support plate 3, as shown in Figure 1 .

[0030] The fan blade back plate 2 is inserted into the front end of the sawtooth of the main support plate 3 through a long U-shaped groove and installed at a 90-degree angle to the main support plate 3, and is welded to the sleeve 9 and the main support plate 3. See Figures 2 and 3. The fan blade back plate 2 is provided with mounting holes. The fan blade 6 is connected to the fan blade back plate 2 by screws. The auger blades 7 are respectively fixed at both ends of the sleeve 9 and on both sides of the material distribution plate 4 at the 1 / 2 position of the sleeve 9, and are welded to the sleeve 9 and the material distribution plate 4. And one end of the auger blades 7 on both sides needs to be arranged radially at 180 degrees with respect to the material distribution plate 4. See Figure 1 . The auxiliary support plate 5 is connected to the mounting hole of the main support plate 3 through screws and the double-hole pressing piece 1. A trapezoidal wedge is designed at the front lower end of the auxiliary support plate 5. The trapezoidal wedge fits with the wedge-shaped notch at the front end of the sawtooth of the main support plate 3 and extends into the short U-shaped groove of the fan blade back plate 2. When the fan blade 6 is installed, the back of the fan blade abuts against the front end of the auxiliary support to press the trapezoidal wedge so that it will not come out. See Figure 3 .

[0031] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation. An element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coaxial dual-fan shaft assembly, comprising: A double-hole pressing sheet (1), a fan blade back plate (2), a main support plate (3), a material distribution plate (4), an auxiliary support plate (5), a fan blade (6), a auger blade (7), a main shaft (8) and a sleeve (9), wherein the main support plate (3) and the material distribution plate (4) are both provided with a circular hole shaft, and the main support plate (3) and the fan blade back plate (2) are provided with mounting holes, characterized in that the main shaft (8) axially passes through the sleeve (9) and is welded to the sleeve (9) through flange plates (10) installed at both ends, the circular hole on the material distribution plate (4) axially passes through the sleeve (9) and is fixed at 1 / 2 of the sleeve (9) and is welded, and the circular hole on the main support plate (3) axially passes through the sleeve (9) and is respectively fixed at 1 / 4 of both ends of the sleeve (9) and is welded; A long U-shaped groove is provided on the fan blade back plate (2); The fan blade back plate (2) is inserted into the serrated front end of the main support plate (3) through the long U-shaped groove, installed at 90 degrees to the main support plate, and welded to the sleeve (9) and the main support plate (3); The fan blade (6) is connected to the fan blade back plate (2) by screws.

2. The coaxial dual-fan shaft assembly according to claim 1, characterized in that: The auger blades (7) are respectively fixed to the two ends of the sleeve (9) and the two sides of the distribution plate (4) at 1 / 2 of the sleeve (9), and are welded to the sleeve (9) and the distribution plate (4), and one end of the auger blades (7) on both sides needs to be radially arranged at 180 degrees with the distribution plate (4).

3. The coaxial dual-fan shaft assembly according to claim 1, characterized in that: The auxiliary support plate (5) is connected to the mounting holes of the main support plate (3) via screws and a double-hole pressing plate (1).

4. The coaxial dual-fan shaft assembly according to claim 3, characterized in that: The front lower end of the auxiliary support plate (5) is designed with a trapezoidal wedge iron, which matches the wedge-shaped notch at the front end of the sawtooth of the main support plate (3) and extends into the short U-shaped groove of the fan blade back plate (2) itself.

Images