Skewed slot block tensioning belt conveyor
By incorporating a sloping trough block tensioning structure and height-adjustable support feet, the complexity of operating belt conveyors in multi-equipment combination scenarios is solved, enabling rapid adjustment of belt tension, improving production efficiency and equipment stability, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JINYU FOOD MASCH CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-08
AI Technical Summary
Existing belt conveyor tension adjustment methods are complex, time-consuming, and labor-intensive in multi-equipment scenarios, making it difficult to meet the needs of high-efficiency production, leading to belt wear and equipment failure, and increasing maintenance costs.
The belt adopts a slanted groove block tensioning structure. By turning the handwheel screw, the slanted groove block and tensioning shaft are driven to move in the slanted groove, which can realize the quick and convenient adjustment of the belt. The height-adjustable support feet can adapt to different installation environments.
It enables quick and convenient adjustment of belt tension, improves production efficiency and equipment stability, reduces maintenance costs, and adapts to the production needs of multi-equipment combination scenarios.
Smart Images

Figure CN224211756U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of belt conveyor equipment technology, and in particular to a belt conveyor with inclined trough block tensioning. Background Technology
[0002] In industrial production, belt conveyors, as core equipment for material handling, are widely used in various production lines. The stability and ease of adjustment of belt tension directly affect the operating efficiency and production continuity of the equipment. However, current belt conveyor tension adjustment methods have several significant drawbacks. Firstly, the traditional method of changing belt length by adjusting the support shafts at both ends requires a series of complex operations on the shafts during actual operation. In production environments with multiple pieces of equipment closely integrated, the operating space is extremely limited, significantly increasing the difficulty of adjustment. Secondly, adjusting the tensioning shaft using screws is not only cumbersome but also requires repeated adjustments to the screw positions. Especially in scenarios where multiple pieces of equipment work together, adjusting each piece individually is not only time-consuming and labor-intensive but also severely slows down the overall production pace.
[0003] With the increasing demands for equipment integration and intelligence in industrial production, multi-equipment production scenarios are becoming more and more common. Existing belt conveyor tension adjustment methods are no longer sufficient to meet the needs of high-efficiency production. Inconvenient adjustments leading to belts that are too loose or too tight not only cause material conveying blockages but also accelerate belt wear and may even trigger equipment malfunctions, thereby increasing maintenance costs and extending downtime. Therefore, developing a belt conveyor that can adapt to multi-equipment scenarios and offers convenient tension adjustment has become an urgent need for industry development. Utility Model Content
[0004] The purpose of this invention is to provide a belt conveyor with inclined trough block tensioning, which aims to overcome the operational limitations of existing technologies in multi-equipment combination scenarios, realize the rapid and convenient adjustment of belt tension, thereby improving production efficiency and equipment stability, while reducing equipment maintenance costs.
[0005] The above-mentioned objective of this utility model is achieved through the following technical solution: A belt conveyor with inclined trough block tensioning includes a belt, a base plate, a drive motor, and a frame assembly. The base plate has a front driven shaft and a rear driven shaft at both ends. The drive motor is connected to a drive shaft. The belt is wound in a closed loop around the drive shaft and the driven shaft. The base plate is located between the upper and lower sections of the belt, providing support for the upper section of the belt. A tension adjustment device is provided on the bottom side of the lower section of the belt. The tension adjustment device includes a tension shaft, as well as fixed plates on both sides, inclined trough blocks, and handwheel screws. The inner side of the fixed plate has a straight groove, and the inclined trough block has an inclined groove. The inclined trough block is located inside the fixed plate. The tension shaft is installed through bearings and is adapted to fit into the inclined groove of the inclined trough block and the straight groove of the fixed plate. The handwheel screw is installed on the base plate and engages with a threaded hole on the top of the inclined trough block. When the handwheel screw is turned, the inclined trough block can be driven to move up and down, thereby driving the tension shaft to move synchronously inward or outward within the straight groove, realizing the tensioning or loosening adjustment of the belt.
[0006] Furthermore, there are two tensioning shafts, and correspondingly, the inclined groove is in the shape of an inverted octagon or a figure-eight.
[0007] Furthermore, the frame assembly is equipped with height-adjustable feet at its bottom. By adjusting the height of the feet, the device can be adapted to different installation environments and usage requirements, improving its versatility. This design better ensures the stability and uniformity of belt tension adjustment.
[0008] Furthermore, the drive motor is fixed to the outside of one of the fixing plates, and the output shaft of the drive motor is connected to one end of the drive shaft. The other fixing plate fixes a bearing seat, which is connected to the other end of the drive shaft. This structural design makes the installation of the drive shaft more stable, ensuring that the power of the drive motor is effectively transmitted to the drive shaft, thereby driving the belt to run stably.
[0009] Furthermore, the bearing housing is an external spherical bearing housing. External spherical bearing housings have advantages such as good self-aligning performance and convenient installation, which can effectively reduce friction and vibration during the operation of the drive shaft and improve the stability and reliability of equipment operation.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] 1. Significantly improved ease of operation: Compared to the traditional method of adjusting the tensioning shaft by turning the two end support shafts and screws, this device only requires turning the top handwheel screw to adjust the belt tension. In multi-device scenarios, it eliminates the need for complex operating spaces and cumbersome debugging procedures, greatly shortening adjustment time, improving operating efficiency, and reducing the difficulty of manual operation.
[0012] 2. Strong structural stability: Through the reasonable layout of components such as tensioning shaft, inclined groove block, and fixing plate, the components work together during the tension adjustment process to ensure accurate and stable belt tension adjustment, effectively avoiding problems such as conveyor jamming and equipment failure caused by the belt being too loose or too tight, and extending the service life of the belt and equipment.
[0013] 3. Adaptable to multiple application scenarios: Whether it is a single device operating independently or a complex production scenario with multiple devices combined, the belt tension can be adjusted quickly and conveniently to meet the needs of different production conditions and improve the overall applicability of the equipment and the smoothness of the production process. Attached Figure Description
[0014] Figure 1 This is an exploded structural diagram of the present invention.
[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 3 This is a top view of the present invention.
[0017] Figure 4 yes Figure 3 Sectional view at point AA.
[0018] Figure 5 yes Figure 4 Sectional view at point BB. Detailed Implementation
[0019] The present invention will now be described in further detail with reference to the accompanying drawings.
[0020] like Figures 1 to 5 As shown, a belt conveyor with inclined trough block tensioning includes a belt 1, a base plate 2, a drive motor 3, and a frame assembly 4. The base plate 2 is horizontally arranged, with a front driven shaft 5 and a rear driven shaft 6 vertically fixed at both ends, respectively. The drive motor 3 is bolted to the outside of one of the fixed plates 9, and the output shaft of the drive motor 3 is keyed to one end of the drive shaft 7. An outer spherical bearing seat 14 is fixed to the other fixed plate 9 by screws, and the other end of the drive shaft 7 is installed in the inner ring of the outer spherical bearing seat 14 to achieve a rotatable connection. The belt 1 is wound in a closed loop around the drive shaft 7, the front driven shaft 5, and the rear driven shaft 6 in sequence. The base plate 2 is located between the upper and lower sections of the belt 1, providing stable support for the upper section of the belt.
[0021] The lower section of the belt 1 is equipped with a tension adjustment device, which includes two tension shafts 8, and a fixing plate 9, a slanted groove block 10, and a handwheel screw 11 symmetrically arranged on both sides. The fixing plate 9 is vertically fixed on the base plate 2, and a horizontal straight groove 15 is machined on its inner side; the slanted groove block 10 is located inside the fixing plate 9, and an inverted octagonal slanted groove 16 is machined on it; the two tension shafts 8 are respectively installed through bearings 12, the outer ring of the bearing 12 is interference-fitted with the tension shaft 8, and the inner ring of the bearing 12 is respectively adapted to the slanted groove 16 of the slanted groove block 10 and the straight groove 15 of the fixing plate 9; the handwheel screw 11 passes through the through hole on the base plate 2 and is threadedly connected to the threaded hole provided on the top of the slanted groove block 10. The frame assembly 4 is equipped with height-adjustable support feet 13 at the four corners of its bottom, and each support foot 13 includes a screw and a nut, and the height of the support foot 13 can be adjusted by rotating the nut.
[0022] The working principle / process of this utility model is as follows: During equipment operation, when it is necessary to adjust the tension of belt 1, the operator screws the handwheel screw 11. Since the handwheel screw 11 is threadedly engaged with the inclined groove block 10, the rotation of the handwheel screw 11 will drive the inclined groove block 10 to move up and down vertically. Because the tensioning shaft 8 is installed in the inclined groove of the inclined groove block 10 and the straight groove of the fixing plate 9 through the bearing 12, the up and down movement of the inclined groove block 10 will drive the tensioning shaft 8 to move synchronously inward or outward in the straight groove. When the tensioning shaft 8 moves inward, it will support the lower section of belt 1, making belt 1 taut; when the tensioning shaft 8 moves outward, the lower section of belt 1 will loosen, thereby realizing the adjustment of the tension of belt 1. At the same time, by adjusting the height-adjustable support feet 13 at the bottom of the frame assembly 4, the device can adapt to different heights and planes, ensuring the stable operation of the belt conveyor.
[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A belt conveyor with inclined trough block tensioning, comprising a belt, a base plate, a drive motor, and a frame assembly, wherein a front driven shaft and a rear driven shaft are respectively provided at both ends of the base plate, the drive motor is connected to a drive shaft, the belt is wound in a closed loop around the drive shaft and the driven shaft, and the base plate is located between the upper and lower sections of the belt, characterized in that: The lower section of the belt is equipped with a tension adjustment device, which includes a tension shaft, a fixing plate on both sides, a slanted groove block, and a handwheel screw. The fixing plate has a straight groove on its inner side, and the slanted groove block has a slanted groove. The slanted groove block is located inside the fixing plate. The tension shaft is installed by bearings and fits into the slanted groove of the slanted groove block and the straight groove of the fixing plate. The handwheel screw is installed on the base plate and engages with a threaded hole on the top of the slanted groove block. When the handwheel screw is turned, the slanted groove block can be driven to move up and down, thereby driving the tension shaft to move synchronously inward or outward in the straight groove, so as to realize the tension or relaxation adjustment of the belt.
2. The belt conveyor with inclined trough block tensioning according to claim 1, characterized in that: There are two tensioning shafts, and correspondingly, the inclined groove is in the shape of an inverted octagon or a figure-eight.
3. The belt conveyor with inclined trough block tensioning according to claim 1, characterized in that: The frame assembly is equipped with height-adjustable feet at the bottom.
4. A belt conveyor with inclined trough block tensioning according to claim 1, characterized in that: The drive motor is fixed to the outside of one of the fixing plates, and the output shaft of the drive motor is connected to one end of the drive shaft. The other fixing plate fixes a bearing seat, and the bearing seat is connected to the other end of the drive shaft.
5. A belt conveyor with inclined trough block tensioning according to claim 4, characterized in that: The bearing housing is an outer spherical bearing housing.