Belt clamping device of belt conveyor

Abstract

The utility model discloses a belt clamping device of a belt conveyor, and solves the technical problems of poor operation continuity and limited overall productivity caused by repeated shutdown switching due to the fact that a traditional belt clamping device can only realize single conveying belt clamping operation at a time. The conveying belts are rectified and fixed through the upper clamping belt assembly and the lower clamping belt assembly, the two conveying belts are synchronously clamped through the double-layer clamping structure, rectification and fixing of the double conveying belts are completed in the single operation period, the equipment shutdown adjustment time is greatly shortened, and the continuous operation capacity of a production line is remarkably improved. The upper clamping belt assembly is adjusted through the lead screw transmission adjusting mechanism, the lower clamping belt assembly is adjusted through the telescopic hydraulic cylinder, deviation of the conveying belt is adjusted, the locking assembly and the anti-skid piece are matched, it is ensured that the conveying belt is kept in a tensioning state in the running process, and the deviation phenomenon is effectively prevented.

Description

Technical Field

[0001] This application relates to the field of belt conveyors, and more specifically to a belt conveyor clamping device. Background Technology

[0002] Belt conveyors, as efficient and continuous material transport equipment, are widely used in mining, ports, power, metallurgy, and other fields. Their core component, the conveyor belt, is prone to misalignment, loosening, or even tearing during long-term operation due to factors such as uneven material loading, mechanical vibration, or installation errors, severely affecting the stability and safety of the equipment. To solve this problem, existing technologies often use belt clamping devices to correct and fix the conveyor belt; however, traditional belt clamping devices generally have the following drawbacks:

[0003] Structural complexity and high maintenance costs: Most clamping devices rely on hydraulic systems or precision mechanical transmissions to achieve the correction function, resulting in large equipment size, increased failure rate, and the need for regular maintenance by professional personnel;

[0004] Insufficient adaptability: Traditional devices are usually designed for conveyor belts of specific specifications, making it difficult to be compatible with belts of different widths and thicknesses, thus limiting their application in scenarios where multiple models are used together;

[0005] Low work efficiency: Traditional devices can only clamp one conveyor belt at a time, and if the single correction effect is not good, the operation needs to be repeated, which greatly reduces work efficiency.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the background technology of this disclosure and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0007] In view of at least one of the above technical problems, this disclosure provides a belt conveyor clamping device, which mainly solves the technical problems of traditional clamping devices being able to perform clamping operations on only a single conveyor belt at a time, requiring repeated shutdowns for switching, resulting in poor operational continuity and limited overall production capacity.

[0008] According to one aspect of this disclosure, a belt conveyor clamping device is provided, including a fixed frame. The fixed frame includes two symmetrically arranged support frames and a fixed crossbeam spanning between the two support frames. Above the fixed crossbeam, between the two support frames, an upper clamping assembly for clamping an upper conveyor belt and including a screw drive adjustment mechanism is provided for clamping an upper conveyor belt. Below the fixed crossbeam, a lower clamping assembly for clamping a lower conveyor belt and including a hydraulic drive adjustment mechanism is provided for clamping a lower conveyor belt. A control module is fixed relative to the fixed crossbeam and is used to adjust the screw drive adjustment mechanism and the hydraulic drive adjustment mechanism accordingly.

[0009] In some embodiments of this disclosure, the inner sides of the two support frames are respectively provided with upper guide grooves and lower guide grooves arranged along the axial direction of the support frames on the upper and lower sides corresponding to the upper and lower sides of the fixed crossbeam; both the upper clamping assembly and the lower clamping assembly include a sliding crossbeam, and the two ends of the sliding crossbeam are respectively provided with guide groove sliders for correspondingly fitting into the upper guide groove or the lower guide groove, and the guide groove sliders are driven by the screw transmission adjustment mechanism or the hydraulic drive adjustment mechanism to move along the upper guide groove or the lower guide groove.

[0010] In some embodiments of this disclosure, the lead screw transmission adjustment mechanism includes a transmission lead screw rotatably disposed in the upper guide groove via a bearing, a drive motor disposed on the top of the support frame and transmitted to the transmission lead screw; and a guide groove slider of the upper clamping assembly sliding beam is threadedly connected to the transmission lead screw.

[0011] In some embodiments of this disclosure, the hydraulic drive adjustment mechanism includes a telescopic hydraulic cylinder fixed at the bottom position inside the lower guide groove; the guide groove slider of the lower clamping assembly sliding beam abuts against the telescopic end of the telescopic hydraulic cylinder.

[0012] In some embodiments of this disclosure, the control module includes a control panel mounted on a fixed crossbeam for controlling the start / stop and rotation direction of the drive motor and the extension / retraction of the telescopic hydraulic cylinder.

[0013] In some embodiments of this disclosure, the sliding crossbeam is provided with a locking component for limiting the height of the sliding crossbeam.

[0014] In some embodiments of this disclosure, the locking assembly includes limiting plates respectively disposed at both ends of the sliding beam and having limiting through holes, a plurality of limiting screw holes equally spaced along the sliding direction of the sliding beam and disposed on the inner side of the fixing frame, and positioning bolts for correspondingly passing through the limiting through holes and threadedly connected to the limiting screw holes at corresponding height positions.

[0015] In some embodiments of this disclosure, the sliding crossbeam is provided with a clamping assembly, which includes a clamping plate arranged parallel to the axial direction of the sliding crossbeam and adjusting bolts passing through both ends of the clamping plate to limit the distance between the clamping plate and the sliding crossbeam.

[0016] In some embodiments of this disclosure, the clamping plate is fixedly provided with anti-slip components at the contact surface with the conveyor belt.

[0017] In some embodiments of this disclosure, the anti-slip component is an anti-slip screw, which has a trapezoidal thread structure and an outer surface inlaid with a polyurethane anti-slip pad with a mesh-like anti-slip texture.

[0018] One or more technical solutions provided in the embodiments of this application have at least one of the following technical effects or advantages:

[0019] 1. By setting up an upper clamping assembly above the fixed crossbeam and a lower clamping assembly below the fixed crossbeam across two support frames, a double-layer clamping structure is formed, which can realize the simultaneous clamping of two conveyor belts. The correction and fixation of double the conveyor belts can be completed in a single operation cycle, which greatly shortens the equipment downtime adjustment time and significantly improves the continuous operation capability of the production line.

[0020] 2. The upper clamping assembly is adjusted using a servo motor-controlled screw drive adjustment mechanism, and the lower clamping assembly is adjusted using a telescopic hydraulic cylinder. During the conveyor belt correction and fixing process, the operator observes the conveyor belt's deviation and controls the upper and lower clamping assemblies to adjust the conveyor belt's alignment via the control module. Under different construction conditions, the operator can adjust the height of the upper and lower clamping assemblies via the control panel to correspond to different conveyor belt positions, making it suitable for various construction situations. Furthermore, a locking assembly mechanically locks the sliding crossbeam after height adjustment, improving the stability of the device during operation.

[0021] 3. The clamping plate, made of channel steel, features a simple and cost-effective structure. When clamping the conveyor belt, operators simply tighten the adjusting bolts to secure the clamping plate to the sliding beam, making operation simple and convenient. Furthermore, the composite structure of trapezoidal threaded anti-slip screws and polyurethane gaskets at the contact surface between the clamping plate and the conveyor belt improves the static friction coefficient and ensures stable clamping. The mesh anti-slip texture design significantly reduces friction attenuation under wet conditions, improving safety during operation in rain and snow. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of the support frame according to an embodiment of this application.

[0024] Figure 3 This is a schematic diagram of the upper and lower clamping components according to an embodiment of this application.

[0025] In the above figures, 1 is the support frame, 2 is the fixed crossbeam, 3 is the screw drive adjustment mechanism, 4 is the upper clamping assembly, 5 is the hydraulic drive adjustment mechanism, 6 is the lower clamping assembly, 7 is the upper guide groove, 8 is the lower guide groove, 9 is the sliding crossbeam, 10 is the guide groove slider, 11 is the transmission screw, 12 is the drive motor, 13 is the telescopic hydraulic cylinder, 14 is the control panel, 15 is the limit plate, 16 is the positioning bolt, 17 is the limit screw hole, 18 is the clamping plate, 19 is the adjusting bolt, and 20 is the anti-slip component. Detailed Implementation

[0026] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "vertical," "horizontal," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "connection" and "linkage" in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0027] Unless otherwise specified, the unit modules, components, structures, mechanisms, or sensors involved in the following embodiments are all commercially available products.

[0028] This application provides a belt conveyor clamping device that solves the technical problems of poor operational continuity and limited overall production capacity caused by the fact that traditional clamping devices can only perform clamping operations on a single conveyor belt at a time and require repeated shutdowns for switching.

[0029] The technical solution in this application embodiment is to solve the above problems. The overall idea is as follows: the upper and lower clamping components are used to correct and fix the conveyor belt, thereby improving construction efficiency. The upper clamping component uses a screw drive adjustment mechanism to adjust the belt, and the lower clamping component uses a telescopic hydraulic cylinder to adjust the belt. With the help of the locking component and the anti-slip screw, the conveyor belt is kept taut during operation, which effectively prevents the belt from running off track.

[0030] To better understand the technical solution of this application, the above technical solution will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] This example discloses a belt clamping device for a belt conveyor, such as Figure 1As shown, the system includes a fixed frame, which is H-shaped and provides installation space for other components. The fixed frame includes two symmetrically arranged support frames 1 and a fixed crossbeam 2 spanning between the two support frames 1. The symmetrically arranged support frames 1 are stably connected by the fixed crossbeam 2. Preferably, the bottom of the support frame 1 has an outer step, which can be bolted to different construction sites. Above the fixed crossbeam 2 between the two support frames 1 is an upper clamping assembly 4 for clamping the upper conveyor belt and including a screw-driven adjustment mechanism 3; below the fixed crossbeam 2 is a lower clamping assembly 6 for clamping the lower conveyor belt and including a hydraulically driven adjustment mechanism 5; and a control module, fixed relative to the fixed crossbeam 2, is used to adjust the screw-driven adjustment mechanism 3 and the hydraulically driven adjustment mechanism 5. This double-layer clamping structure enables simultaneous clamping of two conveyor belts, completing the correction and fixation of double the conveyor belts within a single operation cycle, significantly reducing equipment downtime for adjustments and greatly improving the continuous operation capability of the production line. The upper clamping assembly 4 is adjusted by screw drive and the lower clamping assembly 6 is adjusted by hydraulic drive to achieve belt deviation adjustment. The upper and lower clamping assemblies can be adjusted to connect and clamp the conveyor belt in different construction situations.

[0032] like Figure 1 , 2 As shown in Figures 1 and 3, the inner sides of the two support frames 1 are respectively provided with upper guide grooves 7 and lower guide grooves 8 arranged along the axial direction of the support frame 1 on the upper and lower sides corresponding to the fixed crossbeam 2. Preferably, safety blocks are provided between the upper guide grooves 7 and lower guide grooves 8 and the fixed crossbeam 2, so that the maximum adjustment stroke of the upper clamping assembly 4 and the lower clamping assembly 6 maintains a safety gap of more than 10mm with the fixed crossbeam 2. Both the upper clamping assembly 4 and the lower clamping assembly 6 include a sliding crossbeam 9. The two ends of the sliding crossbeam 9 are respectively provided with guide groove sliders 10 for correspondingly fitting into the upper guide groove 7 or the lower guide groove 8. Through the sliding cooperation of the guide groove sliders 10 with the upper guide groove 7 or the lower guide groove 8, the sliding crossbeam 9 moves across the two support frames 1 along the upper guide groove 7 or the lower guide groove 8. The structure is compact and practical.

[0033] like Figure 2As shown, the lead screw transmission adjustment mechanism 3 includes a lead screw 11 rotatably mounted in the upper guide groove 7 via bearings, and a drive motor 12 mounted on the top of the support frame 1 and connected to the lead screw 11. The lead screw 11 is aligned with the upper guide groove 7, allowing the upper clamping assembly 4 to adjust its height along the upper guide groove 7 for easy clamping of the conveyor belt. Preferably, the drive motor 12 is a servo motor, and its output end is connected to the lead screw 11, thereby driving the lead screw to rotate. The guide groove sliders 10 of the sliding beam 9 of the upper clamping assembly 4 are threadedly connected to the lead screw 11. Driven by the servo motor, the lead screw 11 rotates, causing the guide groove sliders 10 at both ends of the upper clamping assembly 4 to move along the lead screw 11, thereby achieving height adjustment of the upper clamping assembly 4. The hydraulic drive adjustment mechanism 5 includes a telescopic hydraulic cylinder 13 fixed at the bottom of the lower guide groove 8; the guide groove sliders 10 of the sliding beam 9 of the lower clamping assembly 6 abut against the telescopic end of the telescopic hydraulic cylinder 13. Driven by the telescopic hydraulic cylinder 13, the guide groove sliders 10 at both ends of the sliding beam 9 of the lower clamping assembly 6 slide along the lower guide groove 8, thereby realizing the height adjustment of the lower clamping assembly 6. Preferably, the free end of the telescopic hydraulic cylinder 13 is provided with a buffer pad, which abuts against the guide groove sliders 10 at both ends of the sliding beam 9 of the lower clamping assembly 6 to prevent wear and reduce pressure. The control module includes a control panel 14 set on the fixed beam 2 for controlling the start, stop and rotation direction of the drive motor 12 and the extension and retraction of the telescopic hydraulic cylinder 13. The control panel 14 integrates the control of the screw drive adjustment mechanism 3 and the hydraulic drive adjustment mechanism 6, simplifying the operation process, facilitating manual operation, and realizing intelligent adjustment of the upper and lower clamping assemblies.

[0034] like Figure 3 As shown, the sliding crossbeam 9 is equipped with a locking assembly for limiting the height of the sliding crossbeam. This assembly includes limiting plates 15 with limiting through holes at both ends of the sliding crossbeam, several limiting screw holes 17 evenly spaced along the sliding direction of the sliding crossbeam 2 on the inner side of the support frame 1, and positioning bolts 16 threadedly inserted through the limiting through holes and connected to the corresponding limiting screw holes at the corresponding height positions. Once the operator finds the clamping position for precise belt adjustment or clamps the conveyor belt, the positioning bolts 16 engage with the corresponding limiting screw holes 17 through the limiting screw holes, locking the upper and lower clamping assemblies at the corresponding heights of the upper guide groove 7 or lower guide groove 8. The upper and lower clamping assemblies are locked using a mechanical locking method, ensuring the stability of the device during operation.

[0035] like Figure 3As shown, the sliding beam 9 is equipped with a clamping assembly, including a clamping plate 18 arranged parallel to the axial direction of the sliding beam and adjusting bolts 19 passing through both ends of the clamping plate 18 to limit the distance between the clamping plate 18 and the sliding beam 9. Preferably, the clamping plate 18 is made of channel steel, which is inexpensive. The adjusting bolts 19 are threaded through the clamping plate 18 and the sliding beam 9, and the distance between the top surface of the clamping plate 18 and the sliding beam 9 is adjusted by turning the adjusting bolts 19 to clamp the conveyor belt. The structure is simple and the operation is convenient. The clamping plate 18 is fixedly provided with an anti-slip component at the contact surface with the conveyor belt. The anti-slip component is an anti-slip screw 20. The anti-slip screw 20 has a trapezoidal thread structure and a polyurethane anti-slip pad is embedded on the outer surface. The composite structure of the trapezoidal thread and the polyurethane anti-slip pad improves the static friction coefficient and enhances the clamping effect of the clamping plate 19. The surface of the polyurethane anti-slip pad is pressed with a mesh anti-slip pattern. Preferably, the depth of the mesh pattern is 0.3~0.5mm, which can significantly reduce the friction attenuation rate, increase friction, and extend service life.

[0036] Although some preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0037] Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from the spirit and scope of its inventive concept. Therefore, if such modifications and variations to this disclosure fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A belt conveyor clamping device, characterized in that, The device includes a fixed frame, which comprises two symmetrically arranged support frames and a fixed crossbeam spanning between the two support frames. Above the fixed crossbeam, between the two support frames, there is an upper clamping assembly for clamping the upper conveyor belt and including a screw drive adjustment mechanism. Below the fixed crossbeam, there is a lower clamping assembly for clamping the lower conveyor belt and including a hydraulic drive adjustment mechanism. A control module is fixed relative to the fixed crossbeam and is used to adjust the screw drive adjustment mechanism and the hydraulic drive adjustment mechanism.

2. The belt conveyor clamping device according to claim 1, characterized in that, The inner sides of the two support frames are respectively provided with upper guide grooves and lower guide grooves arranged along the axial direction of the support frame on the upper and lower sides corresponding to the upper and lower sides of the fixed crossbeam; both the upper clamping assembly and the lower clamping assembly include a sliding crossbeam, and the two ends of the sliding crossbeam are respectively provided with guide groove sliders for correspondingly fitting into the upper guide groove or the lower guide groove. The guide groove sliders are driven by the screw transmission adjustment mechanism or the hydraulic drive adjustment mechanism to move along the upper guide groove or the lower guide groove.

3. The belt conveyor clamping device according to claim 2, characterized in that, The lead screw transmission adjustment mechanism includes a lead screw that is rotatably mounted in the upper guide groove via a bearing, and a drive motor mounted on the top of the support frame and connected to the lead screw; the guide groove slider of the upper clamping component sliding beam is threadedly connected to the lead screw.

4. The belt conveyor clamping device according to claim 2, characterized in that, The hydraulic drive adjustment mechanism includes a telescopic hydraulic cylinder fixed at the bottom of the lower guide groove; the guide groove slider of the lower clamping component sliding beam abuts against the telescopic end of the telescopic hydraulic cylinder.

5. The belt conveyor clamping device according to claim 4, characterized in that, The control module includes a control panel mounted on a fixed crossbeam for controlling the start / stop and rotation direction of the drive motor and the extension / retraction of the telescopic hydraulic cylinder.

6. The belt conveyor clamping device according to claim 4 or 5, characterized in that, The sliding crossbeam is equipped with a locking component for limiting the height of the sliding crossbeam.

7. The belt conveyor clamping device according to claim 6, characterized in that, The locking assembly includes limiting plates respectively disposed at both ends of the sliding beam and having limiting through holes, a plurality of limiting screw holes equally spaced along the sliding direction of the sliding beam and disposed on the inner side of the support frame, and positioning bolts for correspondingly passing through the limiting through holes and threadedly connected to the limiting screw holes at corresponding height positions.

8. The belt conveyor clamping device according to claim 7, characterized in that, The sliding crossbeam is provided with a clamping assembly, which includes a clamping plate arranged parallel to the axial direction of the sliding crossbeam and adjusting bolts passing through both ends of the clamping plate to limit the distance between the clamping plate and the sliding crossbeam.

9. The belt conveyor clamping device according to claim 8, characterized in that, The clamping plate is fixedly equipped with anti-slip components at the contact surface with the conveyor belt.

10. The belt conveyor clamping device according to claim 9, characterized in that, The anti-slip component is an anti-slip screw, which has a trapezoidal thread structure and an outer surface inlaid with a polyurethane anti-slip pad with a mesh-like anti-slip pattern.

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