A telescopic chain conveyor device

Abstract

The utility model discloses a telescopic chain conveyor transmission device, including a frame, a transmission shaft, a fixed support and an adjusting screw; both ends of the transmission shaft are rotatably connected between the inner sides of the frame through seat bearings, and a plurality of sprockets are provided on the transmission shaft, and the sprockets are driven by chains to drive the transmission shaft to rotate; one end of the adjusting screw is provided with a supporting bearing seat, and the inner ring of the supporting bearing seat is sleeved on the transmission shaft, so that the transmission shaft and the supporting bearing seat can rotate relative to each other; the other end of the adjusting screw is fixed to the fixed support through a locking nut, and the fixed support is connected between the frames and is parallel to the transmission shaft. The utility model designs the middle position of the transmission shaft as a rotating support device. The improved transmission structure has high strength and good stability, effectively disperses the stress concentration during the transmission of the telescopic chain conveyor chain, and eliminates the risk of the transmission shaft breaking.

Description

Technical Field

[0001] The utility model relates to the field of cigarette conveying equipment, and more specifically, to a telescopic chain plate conveying device. Background Art

[0002] The transmission of the telescopic chain conveyor is transmitted by the SEW reduction motor through the chain drive, which transmits the power to the main driving roller. The main driving roller is covered with nylon gears. Through the meshing transmission of the nylon gears and the nylon chain plate, the chain plate is driven to achieve continuous circular rotation, and the finished cigarette pieces placed on the conveyor chain plate are transported and loaded onto the truck, so as to achieve the purpose of conveying materials according to demand.

[0003] The telescopic chain plate machine mainly uses three-stage conveying, and the conveying speed reaches 0.5m / s. The fixed section length is 8000mm, the telescopic section length is 24000mm, and the maximum extension distance of the nylon chain plate of the telescopic chain plate machine is 60000 mm. The conveying distance is long and the chain plate load is heavy. There is a transmission support shaft on each stage of transmission, and each transmission support shaft has four sets of double-row nylon gears with a module of Z13. Due to the high conveying speed, the nylon gears of the drive chain plate also wear quickly. After the four sets of Z13 double-row nylon gears are worn, the nylon chain plate cannot be accurately positioned. During the conveying process, the nylon chain plate is prone to swing, the nylon chain plate deviates, and the transmission load is unbalanced. Utility Model Content

[0004] One purpose of the utility model is to provide a new technical solution of a telescopic chain conveyor device to solve the problems in the above-mentioned background technology.

[0005] According to a first aspect of the utility model, there is provided a telescopic chain conveyor device, comprising a frame, a transmission shaft, a fixed support and an adjustment screw;

[0006] The two ends of the transmission shaft are rotatably connected between the inner sides of the frame through seat bearings, and a plurality of sprockets are provided on the transmission shaft, and the sprockets are driven by chains to drive the transmission shaft to rotate;

[0007] A support bearing seat is provided at one end of the adjusting screw, and the inner ring of the support bearing seat is sleeved on the transmission shaft so that the transmission shaft and the support bearing seat can rotate relative to each other; the other end of the adjusting screw is fixed to the fixed support through a locking nut, and the fixed support is connected between the frames and is parallel to the transmission shaft.

[0008] Optionally, according to the telescopic chain conveyor device described in the utility model, the supporting bearing seat is located in the middle position of the transmission shaft.

[0009] Optionally, according to the telescopic chain conveyor device described in the utility model, the number of the sprockets is an even number, and they are symmetrically arranged on the transmission shaft with the support bearing seat as the center.

[0010] Optionally, according to the telescopic chain conveyor conveying device described in the utility model, positioning sleeves are further provided on both sides of each sprocket on the transmission shaft to locate the position of the sprocket.

[0011] Optionally, according to the telescopic chain conveyor conveying device described in the utility model, a tensioning mechanism is further provided at one end of the seat bearing, and the tensioning mechanism and the adjusting screw synchronously adjust the position of the transmission shaft.

[0012] Optionally, according to the telescopic chain conveyor conveying device described in the utility model, the tensioning mechanism includes an adjusting screw and a fixed seat, the fixed seat is arranged on the inner side of the frame and is located between the seat bearing and the fixed support, one end of the adjusting screw is rotatably connected to the outer ring of the seat bearing, and the other end is threadedly connected to the fixed seat, and fixing nuts are provided on both sides of the fixed seat on the adjusting screw.

[0013] The telescopic chain conveyor device disclosed in the utility model designs the middle position of the transmission shaft as a rotating support device. The improved transmission structure has high strength and good stability, effectively disperses the stress concentration during the transmission of the telescopic chain conveyor chain, and eliminates the risk of the transmission shaft breaking.

[0014] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0016] Figure 1 The utility model is a schematic structural diagram of the telescopic chain conveyor device disclosed in the utility model.

[0017] Description of reference numerals:

[0018] 1-frame; 2-transmission shaft; 3-adjusting screw; 4-support bearing seat; 5-sprocket; 6-positioning sleeve; 7-locking nut; 8-fixed support; 9-adjusting screw; 10-fixed seat; 11-fixing nut; 12-seat bearing. DETAILED DESCRIPTION

[0019] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0020] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0021] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0022] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0023] according to Figure 1 As shown, the utility model provides a telescopic chain conveyor device, including a frame 1, a transmission shaft 2, a fixed support 8 and an adjustment screw 3.

[0024] Both ends of the transmission shaft 2 are rotatably connected to the inner side of the frame 1 through seat bearings 12, and a plurality of sprockets 5 are provided on the transmission shaft 2. The sprockets 5 are driven by chains to drive the transmission shaft 2 to rotate.

[0025] A support bearing seat 4 is provided at one end of the adjusting screw 3, and the inner ring of the support bearing seat 4 is sleeved on the transmission shaft 2 so that the transmission shaft 2 and the support bearing seat 4 can rotate relative to each other; the other end of the adjusting screw 3 is fixed to the fixed support 8 through a locking nut 7, and the fixed support 8 is connected between the frames 1 and is parallel to the transmission shaft 2.

[0026] In this embodiment, the middle position of the transmission shaft 2 is designed as a rotating support device. The improved transmission structure has high strength and good stability, effectively disperses the stress concentration during the transmission of the telescopic chain plate machine chain plate, and eliminates the risk of the transmission shaft 2 breaking. The middle part of the transmission shaft 2 is supported by the support bearing seat 4 and the fixed support 8 to ensure the strength of the middle part of the transmission shaft 2 and avoid the problem of breaking. In addition, the transmission shaft 2 is constrained by the fixed support 8 and the support bearing seat 4 to prevent the transmission shaft 2 from being offset and misaligned.

[0027] Furthermore, the support bearing seat 4 is located in the middle of the transmission shaft 2. The number of the sprockets 5 is an even number, and they are symmetrically arranged on the transmission shaft 2 with the support bearing seat 4 as the center, so that the transmission shaft 2 is subjected to balanced force, avoiding the problem of offset and misalignment caused by uneven force.

[0028] Furthermore, positioning sleeves 6 are provided on both sides of each sprocket 5 on the transmission shaft 2 to position the sprocket 5. During implementation, the positioning sleeves 6 are used to fix and limit the position of the sprocket 5 to ensure that the transmission shaft 2 is balanced in force during the transmission process.

[0029] Furthermore, a tensioning mechanism is provided at one end of the seat bearing 12, and the tensioning mechanism and the adjusting screw 3 synchronously adjust the position of the transmission shaft 2. The tensioning mechanism and the adjusting screw 3 play the same role, and while supporting the middle part of the transmission shaft 2 through the adjusting screw 3 and the supporting bearing seat 4, the tensioning mechanism mainly adjusts the position of the transmission shaft 2 to adjust the tension of the chain.

[0030] Furthermore, the tensioning mechanism includes an adjusting screw 9 and a fixing seat 10, the fixing seat 10 is arranged on the inner side of the frame 1 and is located between the seat bearing 12 and the fixed support 8, one end of the adjusting screw 9 is rotatably connected to the outer ring of the seat bearing 12, and the other end is threadedly connected to the fixing seat 10, and fixing nuts 11 are provided on both sides of the fixing seat 10 on the adjusting screw 9. The overall adjustment principle and process of the tensioning mechanism are the same as those of the adjusting screw 3, and will not be repeated here.

[0031] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A telescopic chain conveyor device, characterized in that: It includes a frame, a transmission shaft, a fixing support and an adjusting screw; The two ends of the transmission shaft are rotatably connected between the inner sides of the frame through seat bearings, and a plurality of sprockets are provided on the transmission shaft, and the sprockets are driven by chains to drive the transmission shaft to rotate; A support bearing seat is provided at one end of the adjusting screw, and the inner ring of the support bearing seat is sleeved on the transmission shaft so that the transmission shaft and the support bearing seat can rotate relative to each other; the other end of the adjusting screw is fixed to the fixed support through a locking nut, and the fixed support is connected between the frames and is parallel to the transmission shaft.

2. The telescopic chain conveyor device according to claim 1, characterized in that: The supporting bearing seat is located in the middle of the transmission shaft.

3. The telescopic chain conveyor device according to claim 2, characterized in that: The number of the sprockets is an even number and they are symmetrically arranged on the transmission shaft with the support bearing seat as the center.

4. The telescopic chain conveyor device according to claim 3, characterized in that: Positioning sleeves are also provided on both sides of each sprocket on the transmission shaft to position the sprocket.

5. The telescopic chain conveyor according to any one of claims 1 to 4, characterized in that: A tensioning mechanism is also provided at one end of the seat bearing, and the tensioning mechanism and the adjusting screw synchronously adjust the position of the transmission shaft.

6. The telescopic chain conveyor device according to claim 5, characterized in that: The tensioning mechanism includes an adjusting screw and a fixed seat, the fixed seat is arranged on the inner side of the frame and is located between the seat bearing and the fixed support, one end of the adjusting screw is rotatably connected to the outer ring of the seat bearing, and the other end is threadedly connected to the fixed seat, and fixing nuts are provided on both sides of the fixing seat on the adjusting screw.

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