Screw shaft

Abstract

The utility model discloses a spiral shaft, and relates to the technical field of engineering mechanical equipment. The utility model aims to solve the problems of short service life, short maintenance period, high maintenance cost and the like caused by low wear resistance and easiness in damage of a plurality of spiral blades of a spiral shaft which are directly welded on a main shaft in the prior art. The cattle farm spiral blade comprises a shaft and a spiral blade body connected to the shaft, a bearing bush is installed at the output end of the shaft, a spiral back plate is welded to a first spiral ring, close to one end of the bearing bush, of the spiral blade body, and cattle farm spiral blade bodies are arranged on the spiral back plate. The utility model is used for engineering machinery equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery equipment, and particularly relates to a spiral shaft. Background Art

[0002] Spiral shafts are widely used in mechanical equipment. During the material transmission process, since the material directly contacts the spiral blades, the spiral blades are subjected to strong abrasive wear by the material. Many of the existing spiral blades of spiral shafts are directly welded to the main shaft. The wear resistance of the spiral blades is not high, and the spiral blades are easily damaged, resulting in a shortened service life, a shortened maintenance period, and high maintenance costs. Content of the Utility Model

[0003] The purpose of the present invention is to provide a spiral shaft to solve the problems raised in the above background art.

[0004] The technical solution adopted by the utility model to solve the above problems is: a spiral shaft, including a shaft and spiral blades connected to the shaft. A bearing bush is installed at the output end of the shaft. A spiral back plate is welded to the first spiral coil at one end of the spiral blade close to the bearing bush, and a cattle farm spiral blade is arranged on the spiral back plate.

[0005] Preferably, the bearing bush is semi-circular arc-shaped, and a plurality of wear-resistant plates are arranged on the outer surface of the bearing bush.

[0006] Preferably, the wear-resistant plate is a sheet-shaped metal strip, and the wear-resistant plate is welded or bonded to the outer surface of the bearing bush.

[0007] Preferably, the inner surface of the back plate is welded to the shaft, and one end of the back plate is welded to the end of the spiral blade.

[0008] Preferably, the cattle farm spiral blade includes a spiral substrate, the spiral substrate is connected to the spiral back plate, a plurality of upper surface wear-resistant plates are arranged on the upper surface of the spiral substrate, and a plurality of side surface wear-resistant plates are arranged on the outer surface of the spiral substrate.

[0009] Preferably, the upper surface wear-resistant plate is a sheet-shaped metal strip, and a plurality of upper surface wear-resistant plates are closely arranged and welded on the spiral substrate.

[0010] Preferably, a plurality of through grooves are evenly formed at intervals on the outer surface of the spiral substrate, and the side surface wear-resistant plates are welded and fixed in the through grooves.

[0011] Preferably, a head is arranged at one end of the spiral substrate away from the spiral blade.

[0012] Preferably, a plurality of screw through holes are evenly arranged on the spiral substrate, and the spiral substrate is connected to the spiral back plate by screws, and the screws pass through the screw through holes.

[0013] The utility model has the following beneficial technical effects:

[0014] A bearing bush is installed at the output end of the shaft of the utility model. A plurality of wear-resistant plates are arranged on the outer surface of the bearing bush. The wear-resistant plates are made of wear-resistant materials, and the spiral shaft is not easily damaged. The spiral blades of the spiral shaft of the utility model are spirally wound around the main shaft of the spiral shaft. The spiral back plate is welded on the shaft, and the cattle farm spiral blades are assembled on the spiral back plate through screws. The cattle farm spiral blades are replaceable, the service life is prolonged, the maintenance period is long, and the maintenance cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the utility model;

[0016] Figure 2 is a schematic structural diagram of the shaft;

[0017] Figure 3 is a schematic structural diagram of the bearing bush;

[0018] Figure 4 is a schematic structural diagram of the cattle farm spiral blade;

[0019] Figure 5 is a schematic structural diagram of an embodiment of the spiral blade unit;

[0020] Figure 6 is Figure 5 the bottom view of;

[0021] Figure 7 is Figure 5 the enlarged view in the direction A of;

[0022] Figure 8 is a schematic structural diagram of another embodiment of the spiral blade unit;

[0023] Figure 9 is Figure 8 the bottom view of;

[0024] Figure 10 is Figure 8 the enlarged view in the direction B of;

[0025] In the figure: 1, shaft; 2, spiral blade; 3, bearing bush; 310, wear-resistant plate; 4, spiral back plate; 5, cattle farm spiral blade; 510, spiral base plate; 520, upper surface wear-resistant plate; 530, side wear-resistant plate; 540, through groove; 550, head; 560, screw through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the specification drawings and embodiments. The specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0027] Specific Embodiment 1: In combination with Figures 1 to 10 To illustrate this embodiment, a screw shaft according to this embodiment includes a shaft 1 and a screw blade 2 connected to the shaft 1. A bearing bush 3 is installed at the output end of the shaft 1. A screw back plate 4 is welded to the first screw coil at one end of the screw blade 2 close to the bearing bush 3. A cattle farm screw blade 5 is provided on the screw back plate 4. One end of the shaft 1 connected to the power source is the output end.

[0028] Screw shafts are widely used in mechanical equipment. During the material transmission process, since the material is in direct contact with the screw blades, the screw blades are subjected to strong abrasive wear by the material. Many of the screw blades of existing screw shafts are directly welded to the main shaft. The wear resistance of the screw blades is not high, and the screw blades are easily damaged, resulting in a shortened service life, a shortened maintenance cycle, and high maintenance costs. The present utility model solves the above problems by adding a cattle farm screw blade 5 to the screw blade of the screw shaft.

[0029] Specific Embodiment 2: In combination with Figures 1 to 10 To illustrate this embodiment, in this embodiment, the bearing bush 3 is semi-circular arc-shaped, and a plurality of wear-resistant plates 310 are provided on the outer surface of the bearing bush 3;

[0030] The wear-resistant plate 310 is a sheet-shaped metal strip, and the wear-resistant plate 310 is welded or bonded to the outer surface of the bearing bush 3;

[0031] The inner surface of the back plate 4 is welded to the shaft 1, and one end of the back plate 4 is welded to the end of the screw blade 2.

[0032] In this embodiment, the wear-resistant plate 310 used is a sheet-shaped metal strip, and the wear-resistant plate 310 is welded or bonded to the outer surface of the bearing bush 3. The wear-resistant plate 310 is preferably made of YG15C hard alloy material.

[0033] Other compositions and connection relationships are the same as those in Specific Embodiment 1.

[0034] Specific Embodiment 3: In combination with Figures 1 to 10 To illustrate this embodiment, in this embodiment, the cattle farm screw blade 5 includes a screw base plate 510, the screw base plate 510 is connected to the screw back plate 4, a plurality of upper surface wear-resistant plates 520 are provided on the upper surface of the screw base plate 510, and a plurality of side surface wear-resistant plates 530 are provided on the outer surface of the screw base plate 510.

[0035] Other compositions and connection relationships are the same as those in Specific Embodiment 1.

[0036] Embodiment 4 in detail: In combination with Figures 1 to 10 Describe this embodiment. In this embodiment, the upper surface wear-resistant plate 520 is a sheet-shaped metal strip, and a plurality of upper surface wear-resistant plates 520 are closely arranged and welded on the spiral substrate 510;

[0037] A plurality of through grooves 540 are evenly spaced on the outer surface of the spiral substrate 510, and the side wear-resistant plates 530 are welded and fixed in the through grooves 540;

[0038] A head 550 is provided at one end of the spiral substrate 510 away from the spiral blade 2.

[0039] The upper surface wear-resistant plate 520, the side wear-resistant plate 530 and the head 550 adopted in this embodiment are preferably made of YG15C material to improve the wear resistance of the upper surface and the side surface of the cattle farm spiral blade 5.

[0040] Embodiment 5 in detail: In combination with Figures 1 to 10 Describe this embodiment. In this embodiment, a plurality of screw through holes 560 are evenly arranged on the spiral substrate 510, and the spiral substrate 510 is connected to the back plate 4 by screws.

[0041] A plurality of screw through holes 550 are provided on the spiral substrate 510 adopted in this embodiment. The spiral substrate 510 is connected to the spiral back plate 4 by screws, and the screws pass through the screw through holes 560. After the cattle farm spiral blade 5 is worn, it is easy to replace, has a long service life, a long maintenance period, and reduces the maintenance cost.

[0042] Other compositions and connection relationships are the same as those in Embodiment 1.

[0043] The above embodiments are only preferred and exemplary, and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A screw shaft, characterized in that: The invention comprises a shaft (1) and a spiral piece (2) connected to the shaft (1), wherein a bearing bush (3) is installed at the output end of the shaft (1), a spiral back plate (4) is welded to the first spiral circle of the spiral piece (2) close to one end of the bearing bush (3), and a cattle farm spiral piece (5) is arranged on the spiral back plate (4).

2. A screw shaft according to claim 1, characterized in that: The bearing bush (3) is semicircular in shape, and a plurality of wear-resistant plates (310) are provided on the outer surface of the bearing bush (3).

3. A screw shaft according to claim 2, characterized in that: The wear-resistant plate (310) is a sheet metal strip, and the wear-resistant plate (310) is welded or bonded to the outer surface of the bearing shell (3).

4. A screw shaft according to claim 1, characterized in that: The inner surface of the spiral back plate (4) is welded to the shaft (1), and one end of the spiral back plate (4) is welded to the end of the spiral plate (2).

5. A screw shaft according to claim 1, characterized in that: The cattle farm spiral blade (5) comprises a spiral base plate (510), wherein the spiral base plate (510) is connected to a spiral back plate (4), a plurality of upper surface wear-resistant plates (520) are arranged on the upper surface of the spiral base plate (510), and a plurality of side wear-resistant plates (530) are arranged on the outer surface of the spiral base plate (510).

6. A screw shaft according to claim 5, characterized in that: The upper surface wear-resistant plate (520) is a sheet metal strip, and a plurality of upper surface wear-resistant plates (520) are closely arranged and welded on the spiral base plate (510).

7. A screw shaft according to claim 5, characterized in that: The outer surface of the spiral base plate (510) is provided with a plurality of through grooves (540) at even intervals, and the side wear-resistant plates (530) are welded and fixed in the through grooves (540).

8. A screw shaft according to claim 5, characterized in that: A sealing head (550) is provided at one end of the spiral base plate (510) away from the spiral plate (2).

9. A screw shaft according to claim 5, characterized in that: A plurality of screw through holes (560) are evenly arranged on the spiral substrate (510); the spiral substrate (510) is connected to the spiral back plate (4) via screws, and the screws pass through the screw through holes (560).

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