Belt conveyor with adjustable tension degree
By using the deflection and tightening mechanism and sensor composed of oil cylinders in belt conveyors, the problem of labor adjustment consumption and quantitative control difficulties in belt transportation is solved, and high accuracy and convenient belt tension and skew adjustment are achieved.
Patent Information
- Application Number
- CN202421668935.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-15
AI Technical Summary
It takes manpower to adjust the inclination and belt tension of the belt frame during the transportation of existing belts, and the adjusted inclination and tension cannot be reflected by quantitative specific values only based on the worker's operating experience.
The tensioning and skewing of the belt is adjusted by a cylinder, and the specific quantization value is reflected through the hydraulic oil volume, and the sensor is monitored and adjusted in real time.
It improves the accuracy and convenience of belt tension and deflection adjustment, reduces the need for manpower adjustment, and can be precisely controlled by quantized values.
Smart Images
Figure CN222860302U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of belt conveyors, and in particular relates to a belt conveyor with adjustable tension. Background Art
[0002] During the construction of a building (such as a tunnel), it is necessary to take out impurities such as slag from the soil bin through a screw conveyor and transport them to the slag outlet. Then, the slag is transported to the slag bucket truck through a belt conveyor. The slag bucket is then lifted and turned over by a gantry crane to pour the slag in the slag bucket into the slag pit. During the entire slag discharge process, the belt frame often tilts or becomes loose due to the long-term operation of the belt, resulting in slag leakage during the transportation of slag. The tilt of the belt frame can easily cause serious wear on one side of the belt, affecting the service life of the belt.
[0003] At present, the construction site generally uses hand winches or hand crank winches to adjust the inclination of the belt frame and the belt tension. The disadvantage of this method is that it consumes manpower and the adjusted inclination and tension are only based on the workers' operating experience and cannot be reflected by quantified specific values. Utility Model Content
[0004] The utility model provides a belt conveyor with adjustable tension, which is used to solve the technical problem that the adjustment of the inclination of the belt frame and the belt tension in the existing belt transportation consumes manpower and the adjusted inclination and tension only depend on the workers' operating experience and cannot be reflected by quantitative specific values.
[0005] The technical solution adopted by the utility model is as follows:
[0006] A belt conveyor with adjustable tension comprises a belt frame main body, on which is provided an active roller driven to rotate by a driving mechanism, and a driven roller connected by a deviation adjustment and tensioning mechanism, wherein a belt is sleeved on the active roller and the driven roller; the deviation adjustment and tensioning mechanism comprises connecting shafts arranged at both ends of the driven roller and rotatably connected to the driven roller, the outer end of each connecting shaft is respectively hinged with a hinge, one end of the hinge is connected to the outer end of the output shaft of a deviation adjustment cylinder, and the shell of the deviation adjustment cylinder is fixedly connected to the belt frame main body.
[0007] Preferably, it also includes a plurality of receiving rollers sleeved in the belt, both ends of each of the receiving rollers are rotatably connected in an adjustment base, the adjustment base is slidably connected to the belt frame body along the directions of both sides of the belt, one side of the adjustment base is connected to the outer end of the output shaft of the bending adjustment cylinder, and the shell of the bending adjustment cylinder is fixedly connected to the belt frame body.
[0008] Preferably, both ends of the receiving roller are rotatably connected to limit members connected to the adjustment base, and the upper and lower ends of each limit member are respectively provided with a follower component that abuts against the edge of the belt to reduce the friction between the belt and the limit member during transmission.
[0009] Preferably, the follower assembly comprises two transmission rollers which are respectively rotatably connected to the limit members, and elastic belts are sleeved on the two transmission rollers, and the outer sides of the elastic belts abut against the edges of the belts.
[0010] Preferably, the limiting member is slidably connected to the adjustment base, and a compression spring is provided between the limiting member and the adjustment base.
[0011] Preferably, a pressure sensor is connected between the hinge and the output end of the deviation adjustment cylinder.
[0012] Preferably, a first shielding sensor is provided on the side of the connecting shaft away from the active roller.
[0013] Preferably, both ends of the active roller are respectively fixedly connected with an extension shaft, one end of the extension shaft is connected to the driving mechanism; the external rotating sleeve of the extension shaft is connected with a mounting sleeve, the bottom of the mounting sleeve is fixedly connected to the belt frame body, and the mounting sleeve is provided with a second occlusion sensor on the side away from the driven roller.
[0014] Preferably, a base is provided under the belt rack body, one end of the belt rack body is hinged to one end of the base through a first hinge seat, and a hydraulic telescopic cylinder is also provided between the belt rack body and the base, the bottom end of the hydraulic telescopic cylinder is hinged to the base through a second hinge seat; the top end of the hydraulic telescopic cylinder is hinged to the bottom of the belt rack body through a third hinge seat; the third hinge seat is arranged between the first hinge seat and the second hinge seat.
[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0016] 1. The present application adjusts and corrects the tension and deflection of the belt through the deflection and tightening mechanism composed of an oil cylinder, which is more accurate, convenient and quicker than manual operation.
[0017] 2. The inclination and tension force adjusted in this application can be reflected by quantitative specific values (the amount of hydraulic oil in the deflection cylinder).
[0018] 3. This application presets the tension of the belt during operation through a tension preset adjustment mechanism.
[0019] 4. The present application provides corresponding sensors at corresponding specific positions to monitor the tension and deflection of the belt in real time, thereby performing linkage adjustment with the deflection and tightening mechanism. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The present invention will be described by way of examples with reference to the accompanying drawings, in which:
[0021] Figure 1 It is a top view of the belt rack body in the utility model;
[0022] Figure 2 for Figure 1 A schematic diagram of the partial cross-sectional structure of the cross section A in the middle;
[0023] Figure 3 for Figure 1 Schematic diagram of the cross-section structure of the middle B cross section;
[0024] Figure 4 It is a front view of a belt conveyor with adjustable tension in the utility model.
[0025] Wherein: 1-belt frame body, 2-driving mechanism, 3-active roller, 4-driven roller, 5-belt, 6-connecting shaft, 7-hinge, 8-bias adjustment cylinder, 9-supporting roller, 10-adjusting base, 11-bending adjustment cylinder, 12-limiting member, 13-transmission roller, 14-elastic belt, 15-compression spring, 16-first shading sensor, 17-extension shaft, 18-installation sleeve, 19-second shading sensor, 20-base, 21-first articulated seat, 22-hydraulic telescopic cylinder, 23-second articulated seat, 24-third articulated seat, 25-pressure sensor. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiment is only a piece of embodiment of the present application, rather than a full piece of embodiment. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.
[0027] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or are the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0028] Combine the following Figure 1 to Figure 3 The utility model is described in detail.
[0029] A belt conveyor with adjustable tension, in some embodiments, such as Figure 1 to Figure 4 As shown, it comprises a belt frame body 1, on which is provided an active roller 3 driven to rotate by a driving mechanism 2, and a driven roller 4 connected by a deviation and tightening mechanism, a belt 5 is sleeved on the active roller 3 and the driven roller 4, and the driving mechanism 2 adopts a motor.
[0030] When the belt 5 is deflected or the tension is insufficient, the staff can adjust the belt 5 by starting the deviation and tension adjustment mechanism, or adjust the tension of the belt 5 without consuming manpower for adjustment.
[0031] In some embodiments, Figure 1~Figure 4 As shown, the deviation adjustment and tightening mechanism includes a connecting shaft 6 which is arranged at both ends of the driven roller 4 and is rotatably connected to the driven roller 4. The outer end of each connecting shaft 6 is respectively hinged with a hinge 7. One end of the hinge 7 is connected to the outer end of the output shaft of the deviation adjustment cylinder 8. The shell of the deviation adjustment cylinder 8 is fixedly connected to the belt frame body 1.
[0032] When the belt 5 is adjusted, the output shaft of the adjustment cylinder 8 closer to the belt 5 extends a certain distance, and the output shaft of the other adjustment cylinder 8 retracts a certain distance, so as to adjust the deviation. After the adjustment is completed, the output shafts of the two adjustment cylinders 8 return to their original positions and maintain the same length; when the tension of the belt 5 needs to be increased, the two adjustment cylinders 8 are extended at the same distance at the same time, so that the tension is increased to the required size; when the tension of the belt 5 needs to be reduced, the two adjustment cylinders 8 are retracted at the same distance at the same time, so that the tension is reduced to the required size. In this way, the adjusted inclination and tension can be reflected by quantitative specific values (the amount of hydraulic oil in the deflection cylinder).
[0033] In some embodiments, Figure 1~Figure 3As shown, it also includes a plurality of receiving rollers 9 sleeved in the belt 5, and both ends of each of the receiving rollers 9 are rotatably connected in an adjustment base 10 with a U-shaped cross-section. The adjustment base 10 is slidably connected to the belt frame body 1 along the directions of both sides of the belt 5, and one side of the adjustment base 10 is connected to the outer end of the output shaft of the bending cylinder 11, and the shell of the bending cylinder 11 is fixedly connected to the belt frame body 1.
[0034] Since the tunnel where the belt 5 conveyor transports the slag has a certain curvature, it is necessary to fine-tune the curvature of the belt 5 at the corresponding position of the tunnel so that the belt 5 matches the curvature of the tunnel. Specifically, the adjustment base 10 is set at the corresponding tunnel position, and then the adjustment base 10 is moved by controlling the extension and contraction of the bending adjustment cylinder 11, thereby driving the receiving roller 9 to move, and then the belt 5 moves to the left or right, that is, the belt 5 has a corresponding curvature, which is beneficial to the transportation of the slag.
[0035] In some embodiments, Figure 1~Figure 3 As shown, both ends of the receiving roller 9 are rotatably connected to limit members 12 connected to the adjustment base 10, and the upper and lower ends of each limit member 12 are respectively provided with a follower component that abuts against the edge of the belt 5 to reduce the friction between the belt 5 and the limit member 12 during transmission.
[0036] During the adjustment of the curvature of the belt 5, the belt 5 is abutted and limited by the limiter 12, so that the belt 5 has a certain curvature; and the sliding friction between the belt and the limiter 12 is reduced by the follower component, thereby reducing the wear of the belt 5 during the bending adjustment process.
[0037] In some embodiments, Figure 1~Figure 3 As shown, the follower assembly includes two transmission rollers 13 rotatably connected to the limit members 12 , respectively. Elastic belts 14 are sleeved on the two transmission rollers 13 , and the outer sides of the elastic belts 14 abut against the edges of the belts 5 .
[0038] It is worth mentioning that the follower component can select a roller which is rotatably connected to the limit member 12 and has a groove on the outer side. However, since the contact area between the roller and the edge of the belt 5 is point contact, slipping is likely to occur. Therefore, as a preference, a follower component in the form of a belt drive is provided to increase the contact area between the follower component and the edge of the belt 5, thereby increasing static friction and avoiding slipping.
[0039] In some embodiments, Figure 1~Figure 3 As shown, the limiting member 12 is slidably connected to the adjusting base 10 , and a compression spring 15 is provided between the limiting member 12 and the adjusting base 10 .
[0040] By providing the compression spring 15 , the hard contact between the belt 5 and the abutment block is reduced, thereby increasing the service life of the belt 5 .
[0041] In some embodiments, Figure 1 As shown in Figure 1, a pressure sensor 25 is connected between the hinge 7 and the accommodating cylinder.
[0042] During specific use, the pressure of the hinge 7 on the containing cylinder during the transportation of the belt 5 is detected by the pressure sensor 25, and the tension of the belt 5 is detected; by real-time monitoring of the tension of the belt 5, the undesirable tension is adjusted in real time.
[0043] In some embodiments, Figure 1 As shown, the connecting shaft 6 is provided with a first blocking sensor 16 on the side away from the active roller 3 .
[0044] When the belt 5 on the driven roller 4 is deflected, one side of the end of the belt 5 detaches from the driven roller 4, thereby blocking the first blocking sensor 16. The first blocking sensor 16 senses the blocking and sends a signal to the controller, causing the controller to start the deviation adjustment cylinder 8 to adjust the deviation. There is no need for manual real-time monitoring, which is more convenient.
[0045] In some embodiments, Figure 1 As shown, the two ends of the active roller 3 are respectively fixedly connected with an extension shaft 17, and one end of the extension shaft 17 is connected to the driving mechanism 2; the external rotating sleeve of the extension shaft 17 is connected with a mounting sleeve 18, and the bottom of the mounting sleeve 18 is fixedly connected to the belt frame body 1, and the mounting sleeve 18 is provided with a second occlusion sensor 19 on the side away from the driven roller 4.
[0046] It is worth mentioning that when the belt 5 on the driven roller 4 is deflected, one side of the end of the belt 5 detaches from the driven roller 4, thereby blocking the first blocking sensor 16. The first blocking sensor 16 senses the obstruction and sends a signal to the controller, causing the controller to start the deviation adjustment cylinder 8 to adjust the deviation. There is no need for manual real-time monitoring, which is more convenient.
[0047] In some other embodiments, different from the above embodiments, Figure 3As shown, a base 20 is provided under the belt rack body 1, one end of the belt rack body 1 is hinged to one end of the base 20 through a first hinge seat 21, and a hydraulic telescopic cylinder 22 is also provided between the belt rack body 1 and the base 20, and the bottom end of the hydraulic telescopic cylinder 22 is hinged to the base 20 through a second hinge seat 23; the top end of the hydraulic telescopic cylinder 22 is hinged to the bottom of the belt rack body 1 through a third hinge seat 24; the third hinge seat 24 is arranged between the first hinge seat 21 and the second hinge seat 23.
[0048] By adjusting the hydraulic telescopic cylinder 22 and thus adjusting the slope of the belt 5 frame body, it is beneficial to transport the slag with too high water content.
[0049] It is worth mentioning that the controller mentioned in the present application can be controlled by the existing PLC system, which is a widely used existing technology and will not be elaborated here; in addition, the first occlusion sensor 16, the second occlusion sensor 19, the deviation adjustment cylinder 8, the pressure sensor 25, and the hydraulic telescopic cylinder 22 are respectively electrically connected to the controller.
[0050] The use principle of the device: The present application adjusts and corrects the tension and deflection of the belt 55 through the deflection adjustment and tightening mechanism composed of an oil cylinder, which is more accurate, more convenient and faster than manual operation.
[0051] The above-mentioned embodiments only express the specific implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the protection scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the technical solution concept of the present application, and these all belong to the protection scope of the present application.
Claims
1. A belt conveyor with adjustable tension, characterized in that: The belt frame comprises a belt frame body (1), wherein the belt frame body (1) is provided with an active roller (3) driven to rotate by a driving mechanism (2), and a driven roller (4) connected by a deviation adjustment and tightening mechanism, wherein a belt (5) is sleeved on the active roller (3) and the driven roller (4); the deviation adjustment and tightening mechanism comprises connecting shafts (6) arranged at both ends of the driven roller (4) and rotatably connected to the driven roller (4), wherein the outer end of each connecting shaft (6) is respectively hinged with a hinge (7), one end of the hinge (7) is connected to the outer end of the output shaft of a deviation adjustment oil cylinder (8), and the shell of the deviation adjustment oil cylinder (8) is fixedly connected to the belt frame body (1).
2. The belt conveyor with adjustable tension according to claim 1, characterized in that: It also includes a plurality of receiving rollers (9) sleeved in the belt (5), the two ends of each receiving roller (9) being rotatably connected in an adjustment base (10), the adjustment base (10) being slidably connected to the belt frame body (1) along the directions of both sides of the belt (5), one side of the adjustment base (10) being connected to the outer end of the output shaft of the bending adjustment cylinder (11), and the shell of the bending adjustment cylinder (11) being fixedly connected to the belt frame body (1).
3. The belt conveyor with adjustable tension according to claim 2, characterized in that: The two ends of the receiving roller (9) are rotatably connected to limit members (12) connected to the adjustment base (10), and the upper and lower ends of each limit member (12) are respectively provided with a follower component that abuts against the edge of the belt (5) to reduce the friction between the belt (5) and the limit member (12) during transmission.
4. The belt conveyor with adjustable tension according to claim 3, characterized in that: The follower assembly comprises two transmission rollers (13) respectively connected to the limiting members (12) for rotation, and the two transmission rollers (13) are sleeved with elastic belts (14), and the outer sides of the elastic belts (14) are in contact with the edges of the belts (5).
5. The belt conveyor with adjustable tension according to claim 3, characterized in that: The limiting member (12) is slidably connected to the adjustment base (10), and a compression spring (15) is provided between the limiting member (12) and the adjustment base (10).
6. The belt conveyor with adjustable tension according to claim 1, characterized in that: A pressure sensor (25) is connected between the hinge (7) and the output end of the deviation adjustment oil cylinder (8).
7. The belt conveyor with adjustable tension according to claim 1, characterized in that: The connecting shaft (6) is provided with a first shielding sensor (16) on a side away from the active roller (3).
8. The belt conveyor with adjustable tension according to claim 1, characterized in that: The two ends of the active roller (3) are respectively fixedly connected to an extension shaft (17), one end of the extension shaft (17) is connected to the driving mechanism (2); the outer rotation sleeve of the extension shaft (17) is connected to a mounting sleeve (18), the bottom of the mounting sleeve (18) is fixedly connected to the belt frame body (1), and the mounting sleeve (18) is provided with a second blocking sensor (19) on a side away from the driven roller (4).
9. The belt conveyor with adjustable tension according to claim 1, characterized in that: A base (20) is provided below the belt rack body (1); one end of the belt rack body (1) is hinged to one end of the base (20) via a first hinge seat (21); a hydraulic telescopic cylinder (22) is further provided between the belt rack body (1) and the base (20); the bottom end of the hydraulic telescopic cylinder (22) is hinged to the base (20) via a second hinge seat (23); the top end of the hydraulic telescopic cylinder (22) is hinged to the bottom of the belt rack body (1) via a third hinge seat (24); the third hinge seat (24) is provided between the first hinge seat (21) and the second hinge seat (23).