Short-distance belt conveyor tensioning device

Abstract

The utility model belongs to the technical field of tensioning devices, and particularly relates to a short-distance belt conveyor tensioning device which comprises a frame and a support, a square cylinder is welded to the front end of the support, a mounting mechanism is arranged on the square cylinder, a tensioning mechanism is arranged on the square cylinder and the frame together, a supporting roller is arranged in the support, and a tensioning mechanism is arranged on the supporting roller. A motor is fixedly installed at the front end of the support, the output end of the motor penetrates through the support and is rotationally connected with the support, the output end is welded to a supporting roller, and a conveying belt is arranged on the outer side of the supporting roller. The two-way screw rod and the screw cylinder are rotated to do threaded motion, so that the screw cylinder slides in the square cylinder, the pressure spring is compressed, the distance between the two supports is enlarged, the conveying belt is tensioned, meanwhile, the conveying belt can be automatically tensioned through the elastic effect of the pressure spring, and the conveying efficiency is improved. Aging and loosening of the conveyor belt after long-time use are avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of tensioning devices, specifically relating to a tensioning device for a short-distance belt conveyor. Background Technology

[0002] Utility model patent CN202743899U relates to a tensioning device for a short-distance belt conveyor. It consists of a tensioning fixing bracket, a tail pulley bracket, and a screw booster. The tensioning fixing bracket has a set of symmetrical longitudinal grooves, and the tail pulley bracket has a set of bolt fasteners. The screw booster consists of two symmetrical vertical plates, two screws, and two locking nuts. The bottoms of the two symmetrical vertical plates are fixedly connected to the two sides of the tensioning fixing bracket, and the ends of the two screws are connected to the tail pulley bracket. The length of the longitudinal grooves is 100-250mm. This utility model has a reasonable structure, is safe and reliable, can meet the tensioning requirements of short-distance belt conveyors, is simple to operate, requires little maintenance, and helps ensure smooth production. However, during use, the conveyor belt is not easily tensioned automatically, and the device is inconvenient to install on the conveyor. Summary of the Invention

[0003] The purpose of this utility model is to provide a tensioning device for short-distance belt conveyors, which solves the problem that existing tensioning devices for short-distance belt conveyors are not convenient for automatic tensioning of the conveyor belt during use, and that the device is inconvenient to install on the conveyor.

[0004] To achieve the above objectives, this utility model provides a tensioning device for a short-distance belt conveyor, comprising a frame and a support. A square tube is welded to the front end of the support, and an installation mechanism is provided on the square tube. A tensioning mechanism is jointly provided on the square tube and the frame. A support roller is provided inside the support. A motor is fixedly installed at the front end of the support. The output end of the motor passes through the support and is rotatably connected to the support. The output end is welded to the support roller. A conveyor belt is provided on the outer side of the support roller. Four evenly distributed support legs are welded to the lower end of the frame.

[0005] The principle of this utility model is as follows: During installation, the square tube is moved to contact with the bracket, allowing the insert block to be inserted into the bracket. Then, the pin is inserted into the bracket, allowing the pin to enter the annular groove. A spring acts on the insert block, allowing it to enter the bracket. The pin, entering the annular groove, limits the insertion block, thus allowing the square tube to be installed on the bracket. This makes installation of the square tube on the bracket convenient. After prolonged use, the bidirectional screw is manually rotated. The rotation of the bidirectional screw and the screw cylinder create a threaded motion, causing the screw cylinder to move into the square tube. This compresses the spring, causing the square tube to move the bracket. By rotating the bidirectional screw and the screw cylinder creating a threaded motion, the screw cylinder slides within the square tube, further compressing the spring. This increases the distance between the two brackets, thus tensioning the conveyor belt and preventing it from aging and loosening after prolonged use.

[0006] The beneficial effects of this utility model are as follows: the spring acts on the insert block, allowing the insert block to enter the bracket, and the pin enters the annular groove to limit the insert block, thereby allowing the square tube to be installed on the bracket, thus making it convenient to install the square tube on the bracket.

[0007] By rotating the bidirectional screw and the screw barrel to make a spiral motion, the screw barrel slides inside the square tube, which in turn compresses the compression spring, increases the distance between the two supports, and thus tensions the conveyor belt. At the same time, through the elasticity of the compression spring, the conveyor belt can be automatically tensioned, preventing the conveyor belt from aging and loosening after long-term use.

[0008] Furthermore, guide rods are welded to the surface of the bracket, and these guide rods are slidably connected to the frame. The guide rods guide the movement of the bracket.

[0009] Furthermore, the mounting mechanism includes a plug, a spring, a pin, and an annular groove. The plug is slidably connected inside the square tube and to the bracket. A spring is installed inside the square tube, and a pin is slidably connected inside the bracket. An annular groove is formed inside the plug and is slidably connected to the pin. The spring acts on the plug, allowing it to enter the bracket. The pin then enters the annular groove to limit the plug's position, thus enabling the square tube to be mounted on the bracket, facilitating its installation.

[0010] Furthermore, one end of the spring is welded to the insert block, and the other end of the spring is welded to the square tube. By setting the spring, the insert block is pressed tightly inside the bracket.

[0011] Furthermore, the tensioning mechanism includes a screw cylinder, a guide block, a guide groove, a compression spring, a bidirectional screw, and a limiting plate. The screw cylinder is slidably connected inside the square cylinder, and a guide block is welded to the outside of the screw cylinder. A guide groove is formed inside the square cylinder, and the guide groove and guide block are slidably connected. A compression spring is installed inside the square cylinder, and a bidirectional screw is threadedly connected inside the screw cylinder. By rotating the bidirectional screw and the screw cylinder to perform threaded movement, the screw cylinder slides inside the square cylinder, thereby compressing the compression spring, increasing the distance between the two supports, and thus tensioning the conveyor belt, preventing it from loosening due to aging after prolonged use.

[0012] Furthermore, one end of the compression spring is welded to the square tube, and the other end of the compression spring is welded to the screw cylinder. By setting the compression spring, the square tube is elastically compressed.

[0013] Furthermore, a limiting plate is welded to the front end of the frame, and the limiting plate is rotatably connected to the bidirectional screw. By setting the limiting plate, the bidirectional screw is limited. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of the tensioning device for a short-distance belt conveyor according to an embodiment of the present invention;

[0015] Figure 2 This invention relates to a tensioning device for a short-distance belt conveyor. Figure 1 A partial schematic diagram of the support structure;

[0016] Figure 3 This invention relates to a tensioning device for a short-distance belt conveyor. Figure 1 A cross-sectional view of a square tube in the middle;

[0017] Figure 4 This invention relates to a tensioning device for a short-distance belt conveyor. Figure 1 Enlarged view of point A in the image. Detailed Implementation

[0018] The following detailed description illustrates the specific implementation method:

[0019] The reference numerals in the accompanying drawings include: frame 1, bracket 2, square tube 3, mounting mechanism 4, tensioning mechanism 5, guide rod 6, support roller 7, motor 8, conveyor belt 9, support leg 10, insert block 41, spring 42, pin 43, annular groove 44, screw barrel 51, guide block 52, guide groove 53, compression spring 54, double-acting screw 55, and limiting plate 56.

[0020] like Figure 1 , Figure 2As shown, this embodiment provides a tensioning device for a short-distance belt conveyor, including a frame 1 and a support 2. A square tube 3 is welded to the front end of the support 2, and an installation mechanism 4 is provided on the square tube 3. A tensioning mechanism 5 is provided on both the square tube 3 and the frame 1. A guide rod 6 is welded to the surface of the support 2, and the guide rod 6 is slidably connected to the frame 1. The guide rod 6 guides the movement of the support 2. A support roller 7 is provided inside the support 2. A motor 8 is fixedly installed at the front end of the support 2. The output end of the motor 8 passes through the support 2 and is rotatably connected to the support 2. The output end is welded to the support roller 7. A conveyor belt 9 is provided on the outside of the support roller 7. Four evenly distributed support legs 10 are welded to the lower end of the frame 1.

[0021] like Figure 1 , Figure 2 , Figure 3 As shown, the installation mechanism 4 includes a plug 41, a spring 42, a pin 43, and an annular groove 44. The plug 41 is slidably connected inside the square tube 3, and the plug 41 is slidably connected to the bracket 2. The spring 42 is installed inside the square tube 3. One end of the spring 42 is welded to the plug 41, and the other end of the spring 42 is welded to the square tube 3. By setting the spring 42, the plug 41 is pressed tightly inside the bracket 2. The pin 43 is slidably connected inside the bracket 2. The annular groove 44 is opened inside the plug 41, and the annular groove 44 is slidably connected to the pin 43. The spring 42 acts on the plug 41, allowing the plug 41 to enter the bracket 2. The pin 43 enters the annular groove 44 to limit the plug 41, thereby allowing the square tube 3 to be installed on the bracket 2, thus making the installation of the square tube 3 on the bracket 2 convenient.

[0022] like Figure 1 , Figure 4 As shown, the tensioning mechanism 5 includes a screw cylinder 51, a guide block 52, a guide groove 53, a compression spring 54, a bidirectional screw 55, and a limiting plate 56. The screw cylinder 51 is slidably connected inside the square cylinder 3. The guide block 52 is welded to the outside of the screw cylinder 51. The guide groove 53 is opened inside the square cylinder 3, and the guide groove 53 and the guide block 52 are slidably connected. A compression spring 54 is installed inside the square cylinder 3. One end of the compression spring 54 is welded to the square cylinder 3, and the other end of the compression spring 54 is welded to the screw cylinder 51. By setting the compression spring 54, the square cylinder 3 is elastically compressed. The inside of the cylinder 51 is connected to a bidirectional screw 55 by a thread. A limit plate 56 is welded to the front end of the frame 1. The limit plate 56 and the bidirectional screw 55 are rotatably connected. By setting the limit plate 56, the bidirectional screw 55 is limited. By rotating the bidirectional screw 55 and the cylinder 51 to make threaded movement, the cylinder 51 slides inside the square cylinder 3, which compresses the compression spring 54, increases the distance between the two supports 2, and tensions the conveyor belt 9, preventing the conveyor belt 9 from aging and loosening after long-term use.

[0023] The specific implementation process of this utility model is as follows: During installation, the square tube 3 is moved to contact with the bracket 2, so that the insert 41 is inserted into the bracket 2. Then, the pin 43 is inserted into the bracket 2, so that the pin 43 enters the annular groove 44. The spring 42 acts on the insert 41, allowing the insert 41 to enter the bracket 2. The pin 43 enters the annular groove 44 to limit the insertion 41, thereby allowing the square tube 3 to be installed on the bracket 2. This makes the installation of the square tube 3 on the bracket 2 convenient, and the device can withstand long-term use. After use, manually rotate the bidirectional screw 55. The rotation of the bidirectional screw 55 and the screw barrel 51 make a threaded movement, which causes the screw barrel 51 to move into the square tube 3, which compresses the compression spring 54. This causes the square tube 3 to move the support 2. By rotating the bidirectional screw 55 and the screw barrel 51 to make a threaded movement, the screw barrel 51 slides in the square tube 3, which compresses the compression spring 54. This increases the distance between the two supports 2, which in turn tensions the conveyor belt 9, preventing the conveyor belt 9 from aging and loosening after long-term use.

[0024] The spring 42 acts on the insert 41, allowing the insert 41 to enter the bracket 2. The pin 43 enters the annular groove 44 to limit the insertion 41, thereby allowing the square tube 3 to be installed on the bracket 2, making it convenient to install the square tube 3 on the bracket 2.

[0025] By rotating the bidirectional screw 55 and the screw barrel 51 to make a threaded motion, the screw barrel 51 slides inside the square tube 3, which in turn compresses the compression spring 54, increases the distance between the two supports 2, and tensions the conveyor belt 9. At the same time, through the elastic action of the compression spring 54, the conveyor belt 9 can be automatically tensioned, preventing the conveyor belt 9 from aging and loosening after long-term use.

[0026] It should be noted in advance that, in this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A tensioning device for a short-distance belt conveyor, comprising a frame and a support, characterized in that: A square tube is welded to the front end of the bracket, and an installation mechanism is provided on the square tube. A tensioning mechanism is provided on both the square tube and the frame. A support roller is provided inside the bracket. A motor is fixedly installed at the front end of the bracket. The output end of the motor passes through the bracket and is rotatably connected to the bracket. The output end is welded to the support roller. A conveyor belt is provided on the outside of the support roller. Four evenly distributed support legs are welded to the lower end of the frame.

2. The tensioning device for a short-distance belt conveyor according to claim 1, characterized in that: The surface of the bracket is welded with guide rods, which are slidably connected to the frame.

3. The tensioning device for a short-distance belt conveyor according to claim 1, characterized in that: The installation mechanism includes a plug, a spring, a pin, and an annular groove. The plug is slidably connected inside the square tube, and the plug is slidably connected to the bracket. A spring is provided inside the square tube, and a pin is slidably connected inside the bracket. An annular groove is provided inside the plug, and the annular groove is slidably connected to the pin.

4. The tensioning device for a short-distance belt conveyor according to claim 3, characterized in that: One end of the spring is welded to the insert block, and the other end of the spring is welded to the square tube.

5. The tensioning device for a short-distance belt conveyor according to claim 1, characterized in that: The tensioning mechanism includes a screw cylinder, a guide block, a guide groove, a compression spring, a bidirectional screw, and a limiting plate. The screw cylinder is slidably connected inside the square cylinder, and a guide block is welded to the outside of the screw cylinder. A guide groove is opened inside the square cylinder, and the guide groove and the guide block are slidably connected. A compression spring is provided inside the square cylinder, and a bidirectional screw is threadedly connected inside the screw cylinder.

6. The tensioning device for a short-distance belt conveyor according to claim 5, characterized in that: One end of the compression spring is welded to the square tube, and the other end of the compression spring is welded to the screw cylinder.

7. The tensioning device for a short-distance belt conveyor according to claim 5, characterized in that: A limiting plate is welded to the front end of the frame, and the limiting plate is rotatably connected to a bidirectional screw.

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