A scraper drive chain tensioning structure

Abstract

The utility model discloses a scraper drive chain tensioning structure, including scraper casing, the vertical arrangement of fixed plate is fixedly arranged to the scraper casing outside, the upper drive roller and lower drive roller are rotatively connected on the fixed plate, the motor is fixedly arranged on the scraper casing top, the output shaft of motor is connected in the upper drive roller, the upper sprocket is arranged on the upper drive roller, is equipped with the lower sprocket on the lower drive roller, and the lower drive roller is connected with the scraper chain drive roller that arranges in the scraper casing, and the transmission chain is equipped between the upper sprocket and the lower sprocket, and the tensioning piece is equipped on the fixed plate, and the tensioning piece is used for tensioning transmission chain to resist transmission chain. The utility model discloses a tensioning piece is used for the tensioning of transmission chain, guarantees its tensioning effect to guarantee the service life of transmission structure, on the other hand, the fixed plate is welded with fixed part and is used for the arrangement of tensioning plate, and the overall tensioning structure is simple in structure, and easy to arrange and add.

Description

Technical Field

[0001] This utility model relates to the field of scraper conveyor transmission technology, specifically to a scraper conveyor drive chain tensioning structure. Background Technology

[0002] The existing scraper conveyor has two sets of rotating rollers connected by a transmission chain. The transmission chain has a scraper on it. During operation, the rotating rollers rotate, driving the scraper to move and thus transferring materials. The rotation of the rotating rollers is driven by a motor. In the existing structure, the motor and the rotating rollers are generally connected by a transmission chain. The existing transmission connection between the motor and the rotating rollers is structurally simple and there is a possibility that the transmission chain may loosen under long-term vibration. If the loose chain is not addressed, it may detach from the sprocket, affecting the stability of the transmission. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the aforementioned background technology by providing a structure for tensioning the transmission chain between the motor and the rotating roller.

[0004] To achieve the above objectives, this utility model provides a scraper conveyor drive chain tensioning structure, which adopts the following technical solution:

[0005] A scraper conveyor drive chain tensioning structure includes a scraper conveyor housing, a vertically arranged fixed plate fixedly installed on the outside of the scraper conveyor housing, an upper drive roller and a lower drive roller rotatably connected to the fixed plate, a motor fixedly installed above the scraper conveyor housing, the output shaft of the motor connected to the upper drive roller, an upper sprocket installed on the upper drive roller, a lower sprocket installed on the lower drive roller, the lower drive roller connected to a scraper chain drive roller installed inside the scraper conveyor housing, a drive chain provided between the upper sprocket and the lower sprocket, and a tensioning member provided on the fixed plate, the tensioning member abutting against the drive chain to tension the drive chain.

[0006] A further improvement of the tensioning structure for a scraper conveyor drive chain of this utility model is that the tensioning plate has a cylindrical fixing member on the fixed plate, a through hole on the tensioning plate through which the fixing member passes, a thread on the outer periphery of the fixing member and a nut connected thereto, the nut abutting against the tensioning plate, a positioning plate fixedly mounted on the fixed plate, a spring between the tensioning plate and the positioning plate, and a tensioning shaft on the tensioning plate that abuts against the drive chain.

[0007] A further improvement of the scraper conveyor drive chain tensioning structure of this utility model is that the tensioning shaft is rotatably connected to the tensioning plate.

[0008] A further improvement of the scraper conveyor drive chain tensioning structure of this utility model is that multiple fixing members are provided and distributed in a dispersed manner.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This utility model uses tensioning components to tension and limit the transmission chain, ensuring its tensioning effect and thus guaranteeing the service life of the transmission structure. On the other hand, the fixing components welded to the fixing plate are used for the installation of the tensioning plate. Overall, the tensioning structure is simple and easy to install. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] In the diagram: 1. Scraper machine housing; 2. Fixed plate; 3. Upper drive roller; 4. Lower drive roller; 5. Upper sprocket; 6. Lower sprocket; 7. Drive chain; 8. Tensioning plate; 9. Tensioning shaft; 10. Fixing component; 11. Spring; 12. Positioning plate. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] like Figure 1 As shown, a scraper conveyor drive chain tensioning structure includes a scraper conveyor housing 1, a vertically arranged fixed plate 2 fixedly installed on the outside of the scraper conveyor housing, an upper drive roller 3 and a lower drive roller 4 rotatably connected to the fixed plate, a motor fixedly installed above the scraper conveyor housing, the output shaft of the motor connected to the upper drive roller, an upper sprocket 5 installed on the upper drive roller, a lower sprocket 6 installed on the lower drive roller, the lower drive roller connected to a scraper chain drive roller installed inside the scraper conveyor housing, a drive chain 7 provided between the upper sprocket and the lower sprocket, and a tensioning member provided on the fixed plate, the tensioning member abutting against the drive chain to tension the drive chain.

[0015] Furthermore, the tensioning component includes a tensioning plate 8, and a cylindrical fixing member 10 is provided on the fixing plate. The fixing member and the fixing plate can be welded together. The tensioning plate has a through hole through which the fixing member passes. The outer circumference of the fixing member has threads and is connected to a nut. The nut abuts against the tensioning plate. A positioning plate 12 is fixedly provided on the fixing plate. A spring 11 is provided between the tensioning plate and the positioning plate. A tensioning shaft is provided on the tensioning plate and abuts against the transmission chain. The tensioning shaft is rotatably connected to the tensioning plate.

[0016] Multiple fasteners are provided and distributed in a dispersed manner. This facilitates the adjustment of the tension plate position, and, in conjunction with the selection of springs, ensures adjustment during assembly, thereby guaranteeing a stable connection.

[0017] The working principle of this utility model is as follows: the tensioning shaft presses against the transmission chain under the action of the spring, so that the transmission chain is always in a tensioned state. Therefore, even if the transmission chain is loose under the working vibration of the scraper machine, it can still be tensioned by the spring, ensuring stable operation.

[0018] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tensioning structure for a scraper conveyor drive chain, characterized in that, The system includes a scraper conveyor housing. A vertically arranged fixed plate is fixedly installed on the outer side of the scraper conveyor housing. An upper drive roller and a lower drive roller are rotatably connected to the fixed plate. A motor is fixedly installed on the top of the scraper conveyor housing. The output shaft of the motor is connected to the upper drive roller. An upper sprocket is installed on the upper drive roller, and a lower sprocket is installed on the lower drive roller. The lower drive roller is connected to a scraper chain drive roller installed inside the scraper conveyor housing. A drive chain is provided between the upper sprocket and the lower sprocket. A tensioning member is provided on the fixed plate. The tensioning member abuts against the drive chain to tension the drive chain.

2. The scraper conveyor drive chain tensioning structure according to claim 1, characterized in that, The tensioning component includes a tensioning plate, a cylindrical fixing component is provided on the fixing plate, a through hole is provided on the tensioning plate, the fixing component passes through the through hole, the outer periphery of the fixing component is threaded and connected to a nut, the nut abuts against the tensioning plate, a positioning plate is fixedly provided on the fixing plate, a spring is provided between the tensioning plate and the positioning plate, and a tensioning shaft is provided on the tensioning plate, the tensioning shaft abuts against the transmission chain.

3. The scraper conveyor drive chain tensioning structure according to claim 2, characterized in that, The tensioning shaft is rotatably connected to the tensioning plate.

4. The scraper conveyor drive chain tensioning structure according to claim 3, characterized in that, The fasteners are provided in multiple parts and are arranged in a dispersed manner.

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