A hanger device for a screw conveyor

Abstract

The utility model relates to a screw conveyor, in order to solve the problems of complex structure, high maintenance cost, short life of existing bearing hanging device, and put forward a kind of hanging device for screw conveyor, including coaxial setting upper drive shaft and lower drive shaft;Upper drive shaft includes upper connecting shaft and the bearing fixed seat of symmetrical setting in the both ends of upper connecting shaft, and the bearing seat is set up on two bearing fixed seats, and bearing seat is provided with upper bearing, and the middle part of upper connecting shaft is provided with upper idler;Lower drive shaft includes lower connecting shaft and multiple pins, and the both sides of lower connecting shaft are symmetrically set with shaft sleeve and spiral shaft from inside to outside, and multiple pin through holes are provided on the side wall of the both sides of lower connecting shaft, and the position corresponding with both sides pin through hole is provided with pin hole on spiral shaft, and pin passes through corresponding pin hole and pin through hole and is fixedly connected with two spiral shafts on the both sides of lower connecting shaft;The middle part of lower connecting shaft is provided with lower idler, and upper idler and lower idler are connected by chain or flexible conveyor belt.

Description

Technical Field

[0001] This utility model relates to screw conveyors, and more specifically to a hanging device for screw conveyors. Background Technology

[0002] A screw conveyor is a machine that uses a motor to drive a screw to rotate and push materials to achieve the purpose of conveying. It can perform horizontal, inclined, or vertical conveying and has the advantages of simple structure, small cross-sectional area, good sealing performance, and convenient operation. The working principle of a screw conveyor is that the rotating screw blades push the material to convey it. The reason why the material does not rotate with the screw conveyor blades is the material's own weight and the frictional resistance between the material and the screw conveyor casing. The screw shaft of the screw conveyor is equipped with a thrust bearing at the end in the direction of material movement. When the machine is long, the screw shaft is prone to bending and deformation under the action of the material's gravity and its own weight. Therefore, a hanging bearing device should be added in the middle to provide sufficient support.

[0003] Existing hanging bearing devices have complex structures. When applied in powder conveying channels, the bearings or bushings on the hanging bearing device, as well as the oil seals of the bearing sealing structure, are buried in the powder for a long time. The powder can enter the bearing sealing structure, bearing, and bushing, causing wear on the hanging bearing device and even jamming. This results in high maintenance costs, short service life, and easy contamination of materials. Therefore, it is imperative to find a hanging bearing device with a simple structure and long service life. Utility Model Content

[0004] The purpose of this invention is to solve the technical problems of existing hanging bearing devices, such as complex structure, high maintenance cost, short service life, and easy contamination of materials, and to propose a hanging device for screw conveyors.

[0005] To achieve the above objectives, the technical solution proposed by this utility model is as follows:

[0006] A suspension device for a screw conveyor, characterized in that it includes an upper drive shaft and a lower drive shaft arranged in parallel.

[0007] The upper drive shaft includes an upper connecting shaft, with its two ends respectively installed in two upper bearings. The two upper bearings are respectively set in two bearing seats, and the two bearing seats are respectively fixed on two bearing fixing seats. The two bearing fixing seats are used to connect with the frame of the screw conveyor. An upper idler wheel is provided in the middle of the upper connecting shaft.

[0008] The lower drive shaft includes a lower connecting shaft and multiple pins. A lower idler wheel is provided in the middle of the lower connecting shaft. A bushing is fitted on the lower connecting shaft on both sides of the lower idler wheel. A helical shaft is fitted on the lower connecting shaft outside each bushing. The inner end of each helical shaft abuts against the outer end of the bushing. Multiple pin through holes are provided at both ends of the lower connecting shaft. Pin holes are provided on the two helical shafts at positions corresponding to the pin through holes at both ends of the lower connecting shaft. Multiple pins pass through the corresponding pin holes and pin through holes to fix the two helical shafts to both ends of the lower connecting shaft.

[0009] The upper idler wheel and the lower idler wheel are connected by a chain or a flexible conveyor belt.

[0010] Furthermore, each bearing mounting base includes a connecting base plate and a vertical plate disposed on the connecting base plate, with the vertical plate disposed on the edge of the connecting base plate near the upper idler wheel; each bearing housing is respectively disposed on the vertical plate;

[0011] The two connecting base plates are used for connection to the frame of the screw conveyor.

[0012] Furthermore, each of the vertical plates is provided with a U-shaped opening in the middle, with the opening direction of the U-shaped opening facing upwards, and two waist-shaped holes are provided on each side of each U-shaped opening, with each waist-shaped hole extending in the vertical direction.

[0013] The upper connecting shaft is placed inside the U-shaped opening;

[0014] The base of the bearing housing is fixed to the vertical plate by four bolt connection assemblies. Each bolt connection assembly passes through an oblong hole. The four bolt connection assemblies are used to adjust the parallelism and distance between the upper and lower connecting shafts.

[0015] Furthermore, a support plate is provided on the outer side of each vertical plate. The support plate is located on the side of the vertical plate away from the upper idler wheel, and a support bolt is installed on the support plate. The upper end of the support bolt abuts against the lower end of the bearing seat.

[0016] Furthermore, each of the two bearing housings has a bearing cap on both sides of the upper bearing.

[0017] Furthermore, lubrication holes are provided between the two bearing housings and the upper bearing to reduce bearing wear.

[0018] Furthermore, the upper idler wheel and the lower idler wheel are fixed to the upper connecting shaft and the lower connecting shaft respectively by welding.

[0019] Furthermore, the inner diameter of the helical shaft matches the outer diameter of the lower connecting shaft.

[0020] Furthermore, a lubricating oil filling device is installed on the lubrication hole for adding lubricating oil.

[0021] Furthermore, both the upper and lower idler wheels are made of stainless steel.

[0022] The beneficial effects of this utility model are:

[0023] [1] The present invention provides a simple structure for a hanging device for a screw conveyor, which is easy to install. The upper idler wheel and the lower idler wheel can maintain the straightness and stability of the screw shaft, prevent it from sagging or bending, and ensure smooth material conveying. At the same time, the hanging device of the screw conveyor is simple in structure, easy to disassemble and maintain, effectively reducing production and maintenance costs and extending the service life of the screw conveyor.

[0024] [2] The idler wheel assembly in the hanging device for the screw conveyor of this utility model has good radial and axial load bearing capacity, can be quickly installed, effectively improves work efficiency, has a simple structure and is easy to maintain and repair, and can effectively extend service life.

[0025] [3] By providing a lubrication hole and a lubricating oil filling device between the bearing housing and the bearing, this utility model can effectively reduce the wear of the upper bearing and improve the safety performance of the hanging device. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of a hanging device for a screw conveyor according to the present invention;

[0027] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0028] Figure label:

[0029] 1-Screw shaft, 2-Lower connecting shaft, 3-Pin, 4-Shaft sleeve, 5-Lower idler wheel, 6-Chain, 7-Bearing seat, 8-Bearing fixing seat, 9-Upper connecting shaft, 10-Upper idler wheel, 11-Pin through hole, 12-Pin hole, 13-Connecting base plate, 14-Vertical plate, 15-Support plate, 16-Support bolt. Detailed Implementation

[0030] like Figure 1 and Figure 2 As shown, a hanging device for a screw conveyor includes an upper drive shaft and a lower drive shaft arranged parallel to each other.

[0031] The upper drive shaft includes an upper connecting shaft 9, with its two ends respectively installed in two upper bearings. The two upper bearings are respectively housed in two bearing seats 7, which are respectively fixed on two bearing mounting seats 8. Each bearing mounting seat 8 includes a connecting base plate 13 and a vertical plate 14 disposed on the connecting base plate 13, with the vertical plate 14 positioned on the edge of the connecting base plate 13 away from the upper idler wheel 10. Each bearing seat 7 is disposed on the vertical plate 14. Each vertical plate 14 has a U-shaped opening in the middle, with the opening direction of the U-shaped opening facing upwards. Each U-shaped opening has two oblong holes on each side, extending vertically. The upper connecting shaft 9 is placed inside the U-shaped opening. The base of the bearing seat 7 is fixed to the vertical plate 14 by four bolt connection assemblies, each bolt connection assembly passing through an oblong hole. The four bolt connection assemblies are used to adjust the parallelism and distance between the upper connecting shaft 9 and the lower connecting shaft 2.

[0032] Each vertical plate 14 is provided with a support plate 15 on its outer side. The support plate 15 is located on the vertical plate 14 near the bottom plate 13, and a support bolt 16 is installed on the support plate 15. The upper end of the support bolt 16 abuts against the lower end of the bearing seat 7.

[0033] Each upper bearing in the two bearing housings 7 is provided with a bearing cap on both sides. A lubrication hole is provided between the two bearing housings 7 and the upper bearing. A lubrication oil filling device is installed on the lubrication hole to add lubricating oil and reduce bearing wear. An upper idler wheel 10 is provided in the middle of the upper connecting shaft 9.

[0034] The lower drive shaft includes a lower connecting shaft 2 and multiple pins 3. A lower idler wheel 5 is provided in the middle of the lower connecting shaft 2. A bushing 4 is fitted on the lower connecting shaft 2 on both sides of the lower idler wheel 5. A helical shaft 1 is fitted on the lower connecting shaft 2 outside each bushing 4. The inner end of each helical shaft 1 abuts against the outer end of the bushing 4. Multiple pin through holes 11 are provided at both ends of the lower connecting shaft 2. Pin holes 12 are provided on the two helical shafts at positions corresponding to the pin through holes 11 at both ends of the lower connecting shaft 2. Multiple pins 3 pass through the corresponding pin holes 12 and pin through holes 11 to fix the two helical shafts 1 to both ends of the lower connecting shaft 2. The upper idler wheel 10 and the lower idler wheel 5 are fixed to the upper connecting shaft 9 and the lower connecting shaft 2 respectively by welding.

[0035] The upper idler wheel 10 and the lower idler wheel 5 are connected by a chain 6 or a flexible conveyor belt. Both the upper idler wheel 10 and the lower idler wheel 5 are made of stainless steel, which makes the hanging device of the screw conveyor simple in structure, easy to disassemble and maintain, effectively reducing maintenance and production costs, and extending the service life of the hanging device.

Claims

1. A suspension device for a screw conveyor, characterized in that: This includes an upper drive shaft and a lower drive shaft that are arranged in parallel. The upper drive shaft includes an upper connecting shaft (9), with both ends of the upper connecting shaft (9) installed in two upper bearings respectively. The two upper bearings are respectively set in two bearing seats (7), and the two bearing seats (7) are respectively fixed on two bearing fixing seats (8). The two bearing fixing seats (8) are used to connect with the frame of the screw conveyor. An upper idler wheel (10) is provided in the middle of the upper connecting shaft (9). The lower drive shaft includes a lower connecting shaft (2) and multiple pins (3). A lower idler wheel (5) is provided in the middle of the lower connecting shaft (2). A bushing (4) is fitted on the lower connecting shaft (2) on both sides of the lower idler wheel (5). A spiral shaft (1) is fitted on the lower connecting shaft (2) outside each bushing (4). The inner end of each spiral shaft (1) abuts against the outer end of the bushing (4). Multiple pin through holes (11) are provided at both ends of the lower connecting shaft (2). Pin holes (12) are provided on the two spiral shafts (1) at positions corresponding to the pin through holes (11) at both ends of the lower connecting shaft (2). Multiple pins (3) pass through the corresponding pin holes (12) and pin through holes (11) to fix the two spiral shafts (1) to both ends of the lower connecting shaft (2). The upper idler wheel (10) and the lower idler wheel (5) are connected by a chain (6) or a flexible conveyor belt.

2. The hanging device for a screw conveyor according to claim 1, characterized in that: Each bearing mounting base (8) includes a connecting base plate (13) and a vertical plate (14) disposed on the connecting base plate (13), and the vertical plate (14) is disposed on the edge of the connecting base plate (13) near the upper idler wheel (10); each of the bearing seats (7) is disposed on the vertical plate (14); The two connecting base plates (13) are used to connect to the frame of the screw conveyor.

3. The hanging device for a screw conveyor according to claim 2, characterized in that: Each of the vertical plates (14) has a U-shaped opening in the middle, with the opening direction of the U-shaped opening facing upwards. Each U-shaped opening has two waist-shaped holes on each side, and each waist-shaped hole extends in the vertical direction. The upper connecting shaft (9) is placed inside the U-shaped opening; The base of the bearing seat (7) is fixed to the vertical plate (14) by four bolt connection components. Each bolt connection component passes through a waist-shaped hole. The four bolt connection components are used to adjust the parallelism and distance between the upper connecting shaft (9) and the lower connecting shaft (2).

4. The hanging device for a screw conveyor according to claim 3, characterized in that: Each of the vertical plates (14) is provided with a support plate (15) on its outer side. The support plate (15) is located on the side of the vertical plate (14) away from the upper idler wheel (10), and a support bolt (16) is installed on the support plate (15). The upper end of the support bolt (16) abuts against the lower end of the bearing seat (7).

5. The hanging device for a screw conveyor according to claim 4, characterized in that: Each upper bearing in the two bearing housings (7) is provided with a bearing cap on both sides.

6. The hanging device for a screw conveyor according to claim 5, characterized in that: Lubrication holes are provided between the two bearing housings (7) and the upper bearing to reduce wear on the upper bearing.

7. A hanging device for a screw conveyor according to claim 6, characterized in that: The upper idler wheel (10) and the lower idler wheel (5) are fixed to the upper connecting shaft (9) and the lower connecting shaft (2) respectively by welding.

8. A suspension device for a screw conveyor according to claim 6 or 7, characterized in that: A lubricating oil filling device is installed on the lubrication hole for adding lubricating oil.

9. A hanging device for a screw conveyor according to claim 8, characterized in that: Both the upper idler wheel (10) and the lower idler wheel (5) are made of stainless steel.

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