A tool for lifting the h-frame of a mine belt conveyor
By designing a tool that includes outriggers, a lifting support plate, a rotating rod, and a wire rope, the problems of time-consuming and labor-intensive adjustment of traditional H-frames and equipment damage were solved, achieving fast and safe H-frame adjustment and improved belt stability.
Patent Information
- Application Number
- CN202522009807.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-18
AI Technical Summary
Traditional H-frame adjustment requires multiple operators in underground coal mining operations, which is time-consuming, easily damages equipment, and increases maintenance costs.
Design a tool that includes outriggers, a lifting support plate, a rotating rod, a lifting force tube, and a steel wire rope. Utilize the lever principle and steel wire rope hooks to achieve rapid lifting and fixation of the H-frame, avoiding equipment damage.
This has shortened the H-frame adjustment time, reduced labor costs, lowered equipment maintenance expenses, improved safety, and prevented belt misalignment accidents.
Smart Images

Figure CN224677752U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of coal mine maintenance equipment, and in particular relates to a tool for raising the H-frame of a mining belt conveyor. Background Technology
[0002] A belt conveyor is a device that continuously transports materials using a conveyor belt. It is widely used in mining, chemical, logistics, and food processing industries, and can transport bulk materials or packaged goods horizontally or at an incline. The core components include a conveyor belt (which carries the material and can be made of rubber, plastic, etc.), a drive unit (motor + reducer + drive rollers to provide power), idlers and supports (which support the belt, and can be trough or parallel idlers to prevent belt sagging), a tensioning device (to maintain belt tension and prevent slippage), a cleaning device (to remove residual material from the belt), and a frame (to secure all components). During operation, the drive rollers rotate the belt, and the material moves with the belt to achieve transport. Regular checks of belt tension, idler rotation, and the cleaning device are necessary to prevent belt misalignment and wear, ensuring efficient and safe operation.
[0003] The H-frame is the core support component of the trough idler of a belt conveyor. Named for its "H"-shaped cross-section, it is primarily used in sections where bulk materials are conveyed at an angle or horizontally. It is bolted to the conveyor frame, with a trough idler bracket mounted on top to support the weight of the idler and material. This ensures the idlers are arranged in a "V" shape to prevent material spillage and maintains belt stability. Suitable for medium to large-sized conveyors, it requires sufficient structural strength to resist deformation.
[0004] In underground coal mining operations, the adjustment efficiency of the H-frame directly affects the continuity of production. Traditional H-frame adjustment has the following drawbacks: 1. It requires a large number of operators (4-5 people), which is time-consuming and labor-intensive, with adjustment taking about 10 minutes.
[0005] 2. Disassembly and assembly can easily damage the H-frame structure, increasing maintenance costs. Utility Model Content
[0006] The purpose of this invention is to provide a tool for raising the H-frame of a mining belt conveyor, in order to solve the problems of existing technologies that require many workers, are time-consuming, and are prone to damage when adjusting the H-frame.
[0007] This utility model adopts the following technical solution: a tool for raising the H-frame of a mining belt conveyor, comprising: Three outriggers, tilted; Raise the support plate and set it horizontally. The upper ends of the three legs are fixedly connected to the lower side of the raised support plate. The three legs are arranged around the raised support plate as the center. Two fixed cylinders are positioned opposite each other, located on the upper side of the raised support plate, and their lower sides are fixedly connected to the upper side of the raised support plate. The rotating rod is horizontally positioned above the raised support plate, with its two ends extending into the inner cavities of the two fixed cylinders. The lifting force-bearing tube has a force-bearing block fixedly connected to its middle section. A force-bearing hole is horizontally opened through the force-bearing block. The force-bearing hole is used for the middle section of the rotating rod to pass through, so that the lifting force-bearing tube can rotate up and down around the rotating rod as the center. This raises the H-frame of the belt conveyor located on the side, which is convenient for raising the H-frame to prevent belt deviation, or for cleaning up loose goods under the belt, or for lowering the floor of the tunnel to prevent belt deviation.
[0008] The beneficial effects of this utility model are: This utility model utilizes the lever principle to lift the H-frame by rotating and raising the force-bearing tube. By setting a clamping plate, the H-frame can be inserted into the opening between the inner and outer ends of the clamping plate, which facilitates the lifting of the H-frame. This can be used to raise the H-frame to prevent belt deviation, or to facilitate the cleaning of loose goods under the belt, or to lower the floor of the tunnel to prevent belt deviation and adjust the length of the rear bar. This utility model, by setting up steel wire ropes and hooks, can be hung on the side wall of the tunnel when the H-frame is raised by lifting the force-bearing pipe, thereby maintaining the lifting of the H-frame and extending the operation time for adjusting belt misalignment or clearing loose cargo. This utility model can save 100,000 yuan in labor costs annually, reduce equipment maintenance costs by 40%, eliminate the risks of manual lifting and handling of heavy objects, and reduce the accident rate to 0; it can also avoid belt tearing accidents caused by belt misalignment. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of this utility model.
[0010] The components are: 10. Outrigger; 11. Elevating support plate; 12. Fixed cylinder; 13. Rotating rod; 14. Elevating force tube; 15. Adjusting rod; 16. Lifting plate; 17. Clamping plate; 18. Wire rope; 19. Hook. Detailed Implementation
[0011] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0012] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more. The term "orientation" in this utility model refers to the orientation of the utility model within the... Figure 1 Description of the state's progression.
[0013] This utility model discloses a tool for raising the H-frame of a mining belt conveyor, such as... Figure 1 As shown, it includes: three support legs 10, a lifting support plate 11, two fixed cylinders 12, a rotating rod 13, and a lifting force tube 14.
[0014] The three support legs 10 are inclined; the lifting support plate 11 is horizontally set, and the upper ends of the three support legs 10 are fixedly connected to the lower side of the lifting support plate 11. The three support legs 10 are respectively arranged around the lifting support plate 11 as the center.
[0015] Both fixed cylinders 12 are located on the upper side of the raised support plate 11, and the lower side of the two fixed cylinders 12 is fixedly connected to the upper side of the raised support plate 11.
[0016] The rotating rod 13 is horizontally positioned and located above the lifting support plate 11. Both ends of the rotating rod 13 are used to extend into the inner cavities of the two fixed cylinders 12. At this time, simply by fitting bolts onto both ends of the rotating rod 13, the rotating rod 13 can be rotatably connected to the lifting support plate 11.
[0017] A force-bearing block is fixedly connected to the middle of the lifting force-bearing pipe 14. A force-bearing hole is horizontally opened on the force-bearing block. The force-bearing hole is used for the middle of the rotating rod 13 to pass through, so that the lifting force-bearing pipe 14 can rotate up and down around the rotating rod 13, thereby raising the H-frame of the belt conveyor located on the side. This makes it easier to raise the H-frame to prevent the belt from running off-track, or to clean up the floating goods under the belt, or to lower the floor of the tunnel to prevent the belt from running off-track.
[0018] Each of the three support legs 10 has a horizontally positioned disc fixedly connected to its lower end. By using the discs, the contact area between the support legs 10 and the ground can be increased, thereby making the entire device more stable.
[0019] An adjustment hole is provided on the lifting force tube 14, and an adjustment rod 15 is provided inside the lifting force tube 14. The adjustment rod 15 is used to fix the length of the adjustment rod 15 extending out of the lifting force tube 14 by passing a screw through the adjustment hole, thereby facilitating the extension of the length of the lifting force tube 14.
[0020] The two ends of the lifting force tube 14 are the lifting end and the fixed end, respectively. The lifting end of the lifting force tube 14 is fixedly connected to the lifting plate 16. The lifting plate 16 is perpendicular to the lifting force tube 14. The side of the lifting plate 16 away from the lifting force tube 14 is fixedly connected to the clamping plate 17. The clamping plate 17 is "L" shaped. The inner end of the clamping plate 17 is fixedly connected to the lifting plate 16. The outer end of the clamping plate 17 is bent into a hook shape. The opening between the inner end and the outer end of the clamping plate 17 is used for the H-frame to extend into, so that the clamping plate 17 lifts the H-frame upward under the action of the lifting force tube 14.
[0021] A steel wire rope 18 is fixedly connected to the fixed end of the lifting force pipe 14. One end of the steel wire rope 18 is fixedly connected to the lifting force pipe 14, and the other end of the steel wire rope 18 is fixedly connected to a hook 19. The hook 19 is used to hang on the side wall of the roadway when the lifting force pipe 14 lifts the H-frame, thereby maintaining the lifting of the H-frame and extending the operation time for adjusting belt deviation or clearing loose cargo. Example
[0022] In the underground coal mining operations of a certain coal mine, five people are needed to adjust the H-frame, and each adjustment takes about 10 minutes.
[0023] After adjusting the H-frame using this invention, the adjustment time for a single frame is reduced to 1-2 minutes, and the number of people required is reduced from 5 to 2, doubling the efficiency. This saves 100,000 yuan in labor costs annually and reduces equipment maintenance costs by 30%.
[0024] By utilizing this utility model, the risks of manual lifting and handling of heavy objects are eliminated, the accident rate of work safety is reduced to 0, and belt tearing accidents caused by belt misalignment are avoided.
[0025] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A tool for raising the H-frame of a mining belt conveyor, characterized in that, include: Three outriggers (10), tilted; The support plate (11) is raised and set horizontally. The upper ends of the three legs (10) are fixedly connected to the lower side of the raised support plate (11). The three legs (10) are respectively arranged around the raised support plate (11) as the center. Two fixed cylinders (12) are arranged opposite to each other, located on the upper side of the raised support plate (11), and their lower sides are fixedly connected to the upper side of the raised support plate (11); The rotating rod (13) is horizontally set and located on the upper side of the lifting support plate (11). The two ends of the rotating rod (13) are respectively used to extend into the inner cavity of the two fixed cylinders (12); The force-bearing tube (14) is raised, and a force-bearing block is fixedly connected to its middle part. A force-bearing hole is horizontally opened on the force-bearing block. The force-bearing hole is used for the middle part of the rotating rod (13) to pass through, so that the force-bearing tube (14) is raised up and down around the rotating rod (13) as the center, thereby raising the H-frame of the belt conveyor located on the side, which is convenient for raising the H-frame to prevent the belt from running off-center, or for cleaning up the floating goods under the belt, or for pulling the roadway floor to prevent the belt from running off-center.
2. The tool for raising the H-frame of a mining belt conveyor according to claim 1, characterized in that, The lower ends of the three legs (10) are all fixedly connected to a horizontally arranged disc.
3. The tool for raising the H-frame of a mining belt conveyor according to claim 1, characterized in that, An adjustment hole is provided on the lifting force tube (14), and an adjustment rod (15) is provided inside the lifting force tube (14). The adjustment rod (15) is used to fix its length extending out of the lifting force tube (14) by passing a screw through the adjustment hole, thereby facilitating the extension of the length of the lifting force tube (14).
4. The tool for raising the H-frame of a mining belt conveyor according to claim 1, characterized in that, The two ends of the lifting force tube (14) are the lifting end and the fixed end, respectively. The lifting end of the lifting force tube (14) is fixedly connected to the lifting plate (16). The lifting plate (16) is perpendicular to the lifting force tube (14). A clamping plate (17) is fixedly connected to the side of the lifting plate (16) away from the lifting force tube (14). The clamping plate (17) is "L" shaped. The inner end of the clamping plate (17) is fixedly connected to the lifting plate (16), and its outer end is bent into a hook shape. The opening between the inner end and the outer end of the clamping plate (17) is used for the H-frame to extend into, so that the clamping plate (17) lifts the H-frame upward under the action of the lifting force tube (14).
5. A tool for raising the H-frame of a mining belt conveyor according to claim 1, characterized in that, The fixed end of the lifting force tube (14) is fixedly connected to a steel wire rope (18). One end of the steel wire rope (18) is fixedly connected to the lifting force tube (14), and the other end is fixedly connected to a hook (19). The hook (19) is used to hang on the side wall of the roadway when the lifting force tube (14) lifts the H-frame, thereby maintaining the lifting of the H-frame and extending the operation time for adjusting belt deviation or clearing floating cargo.