Belt conveyor carrier roller adjusting device
By adopting a design with fixed slide rails, positioning bolts, and adjusting screws on the conveyor belt idler frame, the problem of difficult adjustment of idler position and height is solved, enabling precise adjustment of the idler and improving the operational stability and equipment life of the conveyor belt.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SDIC ZHONGMEI TONGMEI JINGTANG PORT CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-08
AI Technical Summary
The existing belt conveyor idler frame is a fixed structure, which makes it difficult to adjust its position and height, resulting in unstable belt operation, accelerated wear, and even failure.
The system uses a fixed slide rail and positioning bolts, and the roller frame can be flexibly adjusted by positioning nuts and adjusting screws. Combined with the design of clamping rings and fixing bolts, it ensures precise adjustment and stability of the roller position and height.
It improves the ease and precision of adjusting the position and height of the idlers, reduces idler wear, and enhances the operational stability and lifespan of the belt conveyor.
Smart Images

Figure CN224211728U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of idler adjustment technology, and in particular to an idler adjustment device for belt conveyors. Background Technology
[0002] In modern industrial production, belt conveyors, as a high-efficiency and convenient material conveying equipment, are widely used in many fields such as mines, ports, power plants, and cement plants. The stability and reliability of their operation are directly related to the smoothness of the entire production process. As a key component of belt conveyors, idlers play an important role in supporting the belt, reducing belt running resistance, and guiding the belt to run normally.
[0003] Existing patent publication number: CN214030601U, entitled: An auxiliary adjustment device for a belt conveyor alignment idler frame. This device discloses a slotted plate, a bracket, a pull rod, a movable connecting plate, and a fixed connecting plate for the roller frame. The slotted plate is fixed to the belt conveyor frame via the bracket. The slotted plate has a strip-shaped through hole, and a row of slots is formed on both sides of the through hole. The pull rod passes through the strip-shaped through hole and is engaged in the slot. The pull rod includes a fixed rod and a rotating rod, with the lower end of the fixed rod hinged to the belt conveyor frame. The fixed connecting plate for the roller frame... The idler frame is connected to the rotating rod via a movable connecting plate, and the roller frame is fixedly connected to the adjusting idler frame. However, in the above scheme, the idler frame is mostly a fixed structure. Once installed, the position and height of the idler are still difficult to change. When problems such as belt misalignment or uneven material distribution occur during the operation of the belt conveyor, the fixed structure of the idler frame will also lead to accelerated wear of the belt and idler due to the inability to adjust the position and height of the idler in time, shortening the service life of the equipment, and even causing serious failures such as belt tearing. Therefore, the above problems need to be improved. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a belt conveyor idler roller adjustment device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a belt conveyor idler roller adjustment device, comprising two symmetrically arranged fixed plates, two fixed slides symmetrically opened in the middle of the opposite surfaces of the two fixed plates, a positioning bolt slidably installed in each of the two fixed slides, an idler roller frame screwed onto the positioning bolt, two positioning nuts screwed onto the two sides of the positioning bolt on the idler roller frame, an idler roller supported on the top surface of the idler roller frame, two first slides opened on both sides of the two fixed plates in the screw groove, a locking plate slidably installed in each of the first slides, a slide platform fixedly connected between the opposite surfaces of the locking plates, lifting components provided on both sides of the bottom surface of the slide platform, a support platform fixedly connected on the opposite bottom surfaces of the two fixed plates, and a support component provided on the bottom surface of the support platform.
[0006] Preferably, one end of the roller frame is hinged to a clamping ring on one side of the top surface, the other end of the clamping ring abuts against the other side of the top surface of the roller frame and is fitted with a fixing bolt, and the inner wall of the clamping ring abuts against the outer wall of the roller.
[0007] Preferably, a rectangular groove is formed on the top surface of the slide table, the bottom surface of the roller frame abuts against the inner bottom surface of the rectangular groove, one of the two roller frames is provided with two T-shaped limiting blocks, and the other roller frame is provided with a limiting groove corresponding to the two T-shaped limiting blocks.
[0008] Preferably, the lifting assembly includes two adjusting screws, the top ends of which are rotatably mounted on the bottom surface of the slide table, the bottom ends of which pass through the bottom surface of the support platform, and an adjusting nut is provided on the top surface of the support platform at the position of the adjusting screws.
[0009] Preferably, the support assembly includes a steel frame that abuts against both ends of the bottom surface of the support platform, and two support columns are symmetrically arranged on both sides of the bottom surface of the steel frame.
[0010] Preferably, each of the two fixed plates is fixedly provided with a connecting strip at the bottom of its opposite side. The bottom surface of the connecting strip abuts against the top surface of the steel frame. Multiple mounting buckles are provided between the connecting strip and the steel frame, and multiple bolts pass through the mounting buckles and the steel frame.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the sliding cooperation of the fixed slide rail and the positioning bolt, facilitates flexible adjustment of the idler frame position, improving the convenience of adjustment and enabling rapid changes in the idler position. Furthermore, the cooperation of the adjusting nut and the adjusting screw facilitates precise control of the slide height, improving the accuracy of idler height adjustment and enabling fine adjustment of the idler height. Simultaneously, the cooperation of the clamping ring and the fixing bolt facilitates stable fixing of the idler, preventing loosening and displacement. Ultimately, this solves the problem that existing idler frame fixing structures make it difficult to adjust the idler position and height, leading to increased wear on the belt and idler, and frequent equipment failures. This improves the stability and reliability of the belt conveyor operation and extends the equipment's service life. Attached Figure Description
[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0013] Figure 1 This is a first-view schematic diagram of the overall structure proposed in this utility model;
[0014] Figure 2 This is a second-view schematic diagram of the overall structure proposed in this utility model;
[0015] Figure 3 This is a first-view schematic diagram of a partial cross-section of the overall structure proposed in this utility model;
[0016] Figure 4 The present utility model proposes Figure 3 Enlarged schematic diagram of the structure at the A punctuation mark.
[0017] The numbers in the diagram are: 1. Fixed plate; 2. Idler roller; 3. Positioning nut; 4. Positioning bolt; 5. Adjusting screw; 6. Idler roller frame; 7. Support platform; 8. Clamping plate; 9. First slide rail; 10. Clamping ring; 11. Fixed slide rail; 12. Support column; 13. Mounting buckle; 14. Steel frame; 15. Limiting block. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] Example: See Figure 1-4This utility model discloses a belt conveyor idler roller adjustment device, comprising two symmetrically arranged fixed plates 1. Two fixed slides 11 are symmetrically opened in the middle of the opposite surfaces of the two fixed plates 1. Positioning bolts 4 are slidably installed in each of the two fixed slides 11. Idler roller frames 6 are screwed onto the positioning bolts 4. Two positioning nuts 3 are screwed onto both sides of the positioning bolts 4 on the idler roller frames 6. Idler rollers 2 are supported on the top surface of the idler roller frames 6. Two first slides 9 are opened on both sides of the screw groove of the two fixed plates 1. Clamping plates 8 are slidably installed in each of the first slides 9. A sliding table is fixedly connected between the opposite surfaces of the clamping plates 8. Lifting components are provided on both sides of the bottom surface of the sliding table. The bottom of the two fixed plates 1... A support platform 7 is fixedly connected to the opposite end faces, and a support component is provided on the bottom surface of the support platform 7; the fixed plate 1, roller frame 6 and other structural components are made of Q235 carbon steel, which has good strength and toughness and can withstand large pressure and impact; the fixed slide 11 cooperates with the positioning bolt 4 to facilitate flexible adjustment of the position of the roller frame 6, and the positioning nut 3 can be firmly fixed. The Q235 carbon steel material ensures the stability of its structure; the first slide 9 and the clamping plate 8 enable the slide to move flexibly. With the help of the adjusting screw 5 and the adjusting nut, which are made of 45 steel, which are high strength and wear-resistant, the adjusting screw 5 is driven to rise and fall by rotating the adjusting nut, so as to accurately adjust the height of the slide and the roller 2 to meet the needs of different working conditions. The support platform 7, the steel frame 14 made of Q235 carbon steel, and the support column 12 provide stable support, ensuring stable operation of the device and improving the overall ease of adjustment and stability of the idler roller 2. One end of a clamping ring 10 is hinged to one side of the top surface of the idler roller frame 6, and the other end of the clamping ring 10 abuts against the other side of the top surface of the idler roller frame 6 and is fitted with a fixing bolt. The inner wall of the clamping ring 10 abuts against the outer wall of the idler roller 2. The clamping ring 10 is made of 65Mn spring steel, which has high elastic limit and fatigue strength. Together with the fixing bolt, it can tightly clamp the idler roller 2, effectively preventing it from shaking or shifting during operation and ensuring the stability of the belt conveyor. Its features make it resistant to deformation and loosening over long-term use; a rectangular groove is provided on the top surface of the slide table, and the bottom surface of the roller frame 6 abuts against the inner bottom surface of the rectangular groove. One of the two roller frames 6 is provided with two T-shaped limiting blocks 15, and the other roller frame 6 is provided with a limiting groove corresponding to the two T-shaped limiting blocks 15; key parts of the roller frame 6 are hardened to improve hardness and wear resistance. The rectangular groove provides guidance for the sliding of the roller frame 6. The T-shaped limiting blocks 15 and the limiting groove cooperate to precisely limit the movement range of the roller frame 6, ensuring the accuracy and long-term stability of the spacing adjustment between the two roller frames 6, effectively reducing component wear and extending service life;
[0020] In this invention, the lifting assembly includes two adjusting screws 5. The top ends of the adjusting screws 5 are rotatably mounted on the bottom surface of the slide table, and the bottom ends of the adjusting screws 5 pass through the bottom surface of the support platform 7. An adjusting nut is provided on the top surface of the support platform 7 at the location of the adjusting screws 5. The adjusting screws 5 and the adjusting nut are made of 45# steel, which has high strength and good wear resistance. By rotating the adjusting nut, the adjusting screws 5 are driven to rise and fall, and the height of the slide table can be precisely controlled, thereby precisely adjusting the height of the idler roller 2. The characteristics of 45# steel ensure the reliability and durability of the threaded connection, meeting the needs of frequent adjustments. The support assembly includes steel frames 14 abutting against both ends of the bottom surface of the support platform 7. Two support columns 12 are symmetrically arranged on both sides of the bottom surface of the steel frame 14. The steel frame 14 and the support columns 12 are made of Q235 carbon steel, providing a solid and stable foundation for the entire device. The support, with its good strength and toughness, can effectively disperse the pressure during the operation of the device, ensuring stable operation of the device under various working conditions and reducing equipment failures caused by unstable support. Connecting strips are fixedly attached to the bottom back of both fixed plates 1. The bottom surface of the connecting strips abuts against the top surface of the steel frame 14. Multiple mounting buckles 13 are provided between the connecting strips and the steel frame 14, and multiple bolts pass through the mounting buckles 13 and the steel frame 14. The connecting strips, mounting buckles 13, and bolts work together to firmly connect the fixed plates 1 and the steel frame 14. The fixed plates 1 and the steel frame 14 are made of Q235 carbon steel, and the connecting parts are made of high-strength carbon steel, enhancing the overall structural stability of the device and ensuring that all components work together during the adjustment of the idler roller 2, without affecting the device performance due to loose connections.
[0021] Working principle: In use of this utility model, first place the positioning bolt 4 in the fixing slide 11 of the fixing plate 1, then screw the roller frame 6 onto the positioning bolt 4, and fix the position of the roller frame 6 by tightening the positioning nut 3. After placing the roller 2 on the top surface of the roller frame 6, hinge one end of the clamping ring 10 to one side of the roller frame 6, and pass the other end through the fixing bolt and tighten it, so that the clamping ring 10 tightly clamps the outer wall of the roller 2, completing the installation and fixing of the roller 2. When it is necessary to adjust the height of the roller 2, rotate the adjusting nut located at the adjusting screw 5 on the top surface of the support platform 7, driving the adjusting screw 5 to rotate on the bottom surface of the slide and along the slide. Axial lifting and lowering: Adjusting screw 5 drives the slide table to rise or fall. The slide table is guided by the sliding plate 8 within the first slide rail 9, thereby driving the idler frame 6 and idler roller 2 to rise and fall synchronously. When it is necessary to adjust the distance between the two idler frames 6, the rectangular groove on the top surface of the slide table guides the idler frame 6. The operator can push the idler frame 6 along the rectangular groove. At the same time, the T-shaped limiting blocks 15 on the two idler frames 6 cooperate with the limiting groove to limit the movement range of the idler frame 6, ensuring the accuracy and stability of the distance adjustment, so that the distance of the idler roller 2 can be adapted to belts of different specifications. The device is now in use.
[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A belt conveyor idler roller adjusting device, comprising two symmetrically arranged fixing plates (1), characterized in that: Two fixed slides (11) are symmetrically provided in the middle of the opposite face of the two fixed plates (1). A positioning bolt (4) is slidably provided in each of the two fixed slides (11). A roller bracket (6) is screwed onto the positioning bolt (4). Two positioning nuts (3) are screwed onto the two sides of the roller bracket (6). A roller (2) is supported on the top surface of the roller bracket (6). Two first slides (9) are provided on both sides of the screw groove of the two fixed plates (1). A clamping plate (8) is slidably provided in each of the first slides (9). A slide table is fixedly provided between the opposite faces of the clamping plates (8). Lifting components are provided on both sides of the bottom surface of the slide table. A support platform (7) is fixedly provided on the opposite bottom surfaces of the two fixed plates (1). A support component is provided on the bottom surface of the support platform (7).
2. The belt conveyor idler roller adjusting device according to claim 1, characterized in that: One end of the roller frame (6) is hinged to a clamping ring (10) on one side of the top surface. The other end of the clamping ring (10) abuts against the other side of the top surface of the roller frame (6) and is fitted with a fixing bolt. The inner wall of the clamping ring (10) abuts against the outer wall of the roller (2).
3. The belt conveyor idler roller adjusting device according to claim 2, characterized in that: A rectangular groove is provided on the top surface of the slide table, and the bottom surface of the roller frame (6) abuts against the bottom surface of the rectangular groove. One of the roller frames (6) is provided with two T-shaped limiting blocks (15), and the other roller frame (6) is provided with a limiting groove corresponding to the two T-shaped limiting blocks (15).
4. The belt conveyor idler roller adjusting device according to claim 3, characterized in that: The lifting assembly includes two adjusting screws (5). The top of the adjusting screws (5) is rotatably mounted on the bottom surface of the slide table, and the bottom of the adjusting screws (5) passes through the bottom surface of the support platform (7). An adjusting nut is provided on the top surface of the support platform (7) at the position of the adjusting screws (5).
5. The belt conveyor idler roller adjusting device according to claim 4, characterized in that: The support assembly includes a steel frame (14) that abuts against both ends of the bottom surface of the support platform (7), and two support columns (12) are symmetrically arranged on both sides of the bottom surface of the steel frame (14).
6. The belt conveyor idler roller adjusting device according to claim 5, characterized in that: Both of the fixed plates (1) are fixedly connected to the bottom of the opposite side with connecting strips. The bottom surface of the connecting strips abuts against the top surface of the steel frame (14). Multiple mounting buckles (13) are provided between the connecting strips and the steel frame (14). Multiple bolts are passed between the mounting buckles (13) and the steel frame (14).
Citation Information
Patent Citations
Auxiliary adjusting device for deviation adjusting carrier roller frame of belt conveyor
CN214030601U