A belt clamping and tensioning device for a belt conveyor
By designing a belt clamping and tensioning device, and utilizing the gear meshing structure of a fixed base, upper pressure roller, and lower pressure roller, the problem of high difficulty and high risk in belt conveyor splicing was solved, achieving efficient pre-tensioning and safe splicing of the belt.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI JINMEI GRP ZHAOZHUANG COAL IND CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-03
AI Technical Summary
In the existing technology, the installation of belt conveyors requires pre-tensioning for jointing, which is difficult, time-consuming, and has a high risk factor.
A tape clamping and tightening device was designed, including a fixed base, an upper pressure roller and a lower pressure roller. The tape is clamped and tightened through gear meshing and a limiting pin structure. The tape is pre-tightened by the cooperation of a set screw and a handle.
It achieves efficient and safe pre-tensioning of conveyor belts, simplifies the joint construction process, and reduces the difficulty and danger of operation.
Smart Images
Figure CN224449716U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of coal mine equipment, specifically relating to a belt clamping and tensioning device for a belt conveyor. Background Technology
[0002] Belt conveyors are widely used and have a large user base, serving as a primary transportation equipment in industrial production processes. Particularly in coal mining enterprises, belt conveyors are the main equipment for transporting raw coal. However, due to the unique working conditions in underground coal mines, some belt conveyors require pre-tensioning of the conveyor belt during splicing. Currently, there are no tools or devices with this capability, making the pre-tensioning of the belt for splicing difficult, time-consuming, and dangerous. Utility Model Content
[0003] This invention addresses the challenges of pre-tensioning conveyor belts for splicing, which involves significant difficulty, time commitment, and high risk. It provides a conveyor belt clamping and tensioning device for conveyor belts. By using this invention, the conveyor belt can be pre-tensioned for splicing operations, enabling efficient and safe on-site splicing.
[0004] The present invention adopts the following technical solution:
[0005] A belt clamping and tensioning device for a belt conveyor includes two fixed bases connected to the longitudinal beam of the belt frame. The fixed bases have a rectangular groove at their center. Each fixed base has a slot 1 on one side facing each other and a slot 2 on the other side. The depth of slot 1 is greater than the depth of slot 2. Both slot 1 and slot 2 communicate with the groove. An upper pressure roller and a lower pressure roller are provided between the fixed bases. The top of each fixed base has a rectangular opening with a limiting pin inside. The center of the limiting pin has a bolt through hole with a set screw inside.
[0006] Furthermore, the bottom of the fixed base is provided with a clamping plate that connects to the belt longitudinal beam, and the bottom of the clamping plate is provided with two bolt holes, in which bolts for fixing are provided.
[0007] Furthermore, the upper and lower pressure rollers are respectively provided with roller shafts at their centers, and the ends of the roller shafts are stepped; the length of the roller shaft of the upper pressure roller is greater than the length of the roller shaft of the lower pressure roller.
[0008] Furthermore, an upper fixing block and a lower fixing block are respectively provided in the groove. The upper fixing block has a through hole at its center, through which the roller shaft of the upper pressure roller passes. The lower fixing block has an opening at its center, within which the roller shaft of the lower pressure roller is located.
[0009] Furthermore, the ends of the upper pressure rollers extend out of the grooves of the fixed base, and the cross-section of the extended end is rectangular, with a handle fitted on the rectangular cross-section.
[0010] Furthermore, the upper and lower pressure rollers are respectively provided with meshing gears at both ends.
[0011] Furthermore, the outer wall of the fixed base is provided with several bolt countersunk holes, and bolts that block the handle are provided in the bolt countersunk holes.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. By using this utility model, the belt of the conveyor can be clamped and tightened, thus realizing the function of the belt tension joint of the conveyor.
[0014] 2. By using this utility model, splicing operations can be performed on the tape while it is under tension, that is, the tape can be pre-tensioned. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is an exploded view of the present invention;
[0017] Figure 3 This is a schematic diagram of the assembly of the upper and lower pressure rollers of this utility model;
[0018] Figure 4 This is a schematic diagram of the fixed base structure of this utility model;
[0019] Figure 5 This is an installation diagram of the present invention;
[0020] Wherein: 1-Fixed base; 2-Groove; 3-Slot 1; 4-Slot 2; 5-Upper pressure roller; 6-Lower pressure roller; 7-Rectangular opening; 8-Limit pin; 9-Bolt through hole; 10-Top screw; 11-Clamping plate; 12-Bolt hole; 13-Roller shaft; 14-Upper fixing block; 15-Lower fixing block; 16-Handle; 17-Gear; 18-Bolt countersunk hole; 19-Bolt. Detailed Implementation
[0021] The present invention will be further described with reference to the accompanying drawings.
[0022] As shown in the figure, a belt clamping and tensioning device for a belt conveyor includes two fixed bases 1 connected to the longitudinal beam of the belt frame. The fixed base 1 has a rectangular groove 2 at its center. The fixed base 1 has a slot 3 on one side facing each other and a slot 4 on the other side. The depth of slot 3 is greater than the depth of slot 4. Both slot 3 and slot 4 communicate with the groove 2. An upper pressure roller 5 and a lower pressure roller 6 are provided between the fixed bases 1. The top of the fixed base 1 has a rectangular opening 7. A limiting pin 8 is provided in the rectangular opening 7. A bolt through hole 9 is provided in the center of the limiting pin 8. A set screw 10 is provided in the bolt through hole 9.
[0023] Furthermore, the bottom of the fixed base 1 is provided with a clamping plate 11 connected to the belt longitudinal beam, and the bottom of the clamping plate 11 is provided with two bolt holes 12, and bolts for fixing are provided in the bolt holes 12.
[0024] Furthermore, the upper pressure roller 5 and the lower pressure roller 6 are respectively provided with roller shafts 13 at their centers, and the ends of the roller shafts 13 are stepped; the length of the roller shaft 13 of the upper pressure roller 5 is greater than the length of the roller shaft 13 of the lower pressure roller 6.
[0025] Furthermore, an upper fixing block 14 and a lower fixing block 15 are respectively provided in the groove 2. The upper fixing block 14 has a through hole in the center, through which the roller shaft 13 of the upper pressure roller 5 passes. The lower fixing block 15 has an opening in the center, and the roller shaft 13 of the lower pressure roller 6 is located in the opening.
[0026] Furthermore, the ends of the roller shaft 13 of the upper pressure roller 5 extend out of the groove 2 of the fixed base 1, and the cross-section of the extended end is rectangular, with a handle 16 sleeved on the rectangular cross-section.
[0027] Furthermore, the upper pressure roller 5 and the lower pressure roller 6 are respectively provided with meshing gears 17 at both ends.
[0028] Furthermore, the outer wall of the fixed base 1 is provided with a plurality of bolt countersunk holes 18, and bolts 19 are provided in the bolt countersunk holes 18 to block the handle 16 and prevent the handle 16 from reversing.
[0029] After the device is installed, the set screw 10 rotates downwards continuously, generating a tightening force that tightens the upper fixing block 14. Then, when the upper fixing block 14 presses down, it drives the upper pressure roller 5 to move downwards, effectively tightening the tape.
[0030] By rotating the handle 16, the upper pressure roller 5 can be rotated. The upper pressure roller 5 drives the lower pressure roller 6 to rotate through the gear structure above. During the rotation of the upper pressure roller 5 and the lower pressure roller 6, the extrusion conveyor is moved forward to achieve the function of clamping and moving the belt forward. As the belt moves forward continuously, the purpose of tightening the conveyor belt is finally achieved.
[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A belt clamping and tensioning device for a belt conveyor, characterized in that: The system includes two fixed bases (1) connected to the longitudinal beam of the belt frame. The fixed base (1) has a groove (2) with a rectangular cross-section at its center. The fixed base (1) has a slot 1 (3) on one side facing each other and a slot 2 (4) on the other side. The depth of slot 1 (3) is greater than the depth of slot 2 (4). Both slot 1 (3) and slot 2 (4) are connected to the groove (2). An upper pressure roller (5) and a lower pressure roller (6) are provided between the fixed bases (1). The top of the fixed base (1) has a rectangular opening (7). A limiting pin (8) is provided in the rectangular opening (7). A bolt through hole (9) is provided in the center of the limiting pin (8). A set screw (10) is provided in the bolt through hole (9).
2. The belt clamping and tensioning device for a belt conveyor according to claim 1, characterized in that: The bottom of the fixed base (1) is provided with a clamping plate (11) connected to the belt longitudinal beam. The bottom of the clamping plate (11) is provided with two bolt holes (12), and bolts for fixing are provided in the bolt holes (12).
3. The belt clamping and tensioning device for a belt conveyor according to claim 1, characterized in that: The upper pressure roller (5) and the lower pressure roller (6) are respectively provided with roller shafts (13) at their centers, and the ends of the roller shafts (13) are stepped; the length of the roller shaft (13) of the upper pressure roller (5) is greater than the length of the roller shaft (13) of the lower pressure roller (6).
4. The belt clamping and tensioning device for a belt conveyor according to claim 3, characterized in that: The groove (2) is provided with an upper fixing block (14) and a lower fixing block (15). The upper fixing block (14) has a through hole in the center, through which the roller shaft (13) of the upper pressure roller (5) passes. The lower fixing block (15) has an opening in the center, through which the roller shaft (13) of the lower pressure roller (6) is located.
5. The belt clamping and tensioning device for a belt conveyor according to claim 4, characterized in that: The ends of the roller shaft (13) of the upper pressure roller (5) extend out of the groove (2) of the fixed base (1), and the cross-section of the extended end is rectangular, with a handle (16) sleeved on the rectangular cross-section.
6. The belt clamping and tensioning device for a belt conveyor according to claim 1, characterized in that: The upper pressure roller (5) and the lower pressure roller (6) are respectively provided with meshing gears (17) at both ends.
7. The belt clamping and tensioning device for a belt conveyor according to claim 5, characterized in that: The outer wall of the fixed base (1) is provided with several bolt countersunk holes (18), and bolts (19) that block the handle (16) are provided in the bolt countersunk holes (18).