Free rolling type slip detector

Abstract

The utility model discloses a free rolling type slip detector which comprises a conveying frame, roller frames are rotatably connected in the conveying frame in a bilateral symmetry mode, hollow rollers are rotatably connected in the two roller frames, rotating speed detection assemblies are arranged in the hollow rollers, movable grooves are formed in the side walls of the roller frames, and sliding blocks are slidably connected to the inner walls of the movable grooves. According to the free rolling type slipping detector, through the arrangement of the roller frames, the hollow rollers and the rotating speed detection assembly, when the conveying belt runs, one roller frame can be overturned upwards, one hollow roller abuts against the driving belt roller, the rotating speed of the driving belt roller is measured, the conveying speed of the conveying belt is measured through the other hollow roller, and the rotating speed is compared with the rotating speed of the driving belt roller; whether the driving belt roller and the conveying belt slip or not is detected, in the same way, one hollow roller abuts against the driven belt roller, the rotating speed of the driven belt roller is detected, the other hollow roller detects the conveying speed of the conveying belt, and whether the driven belt roller and the conveying belt slip or not is detected.

Description

Technical Field

[0001] The utility model belongs to the technical field of belt conveyor protection devices, and in particular relates to a free-rolling slip detector. Background Art

[0002] Belt conveyor is a mechanical equipment that uses friction drive to transport materials in a continuous manner. It has the characteristics of strong conveying capacity, long conveying distance, simple structure and easy maintenance, and can easily implement programmed control and automated operation. With the widespread application of belt conveyors, there are more and more types of supporting protection devices. Among them, the detection of conveyor belt slippage is a very critical content in production. Whether the conveyor belt operates normally is directly related to the operating efficiency of the entire system.

[0003] The existing slip detectors usually have external detection devices, which can easily distort the detection data in harsh production sites. At the same time, ordinary slip detection methods can only be applied to conveyor systems with fixed conveyor belt running speeds, and cannot solve the problem of conveyor belt running speeds with variable frequency. For this reason, we propose a free-rolling slip detector. Utility Model Content

[0004] The purpose of the utility model is to provide a free-rolling skid detector to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a free-rolling slip detector, comprising a conveying frame, a roller frame symmetrically connected to the inside of the conveying frame for rotation, hollow rollers rotatably connected to the inside of the two roller frames, and a speed detection component is provided inside the hollow roller, a movable groove is opened on the side wall of the roller frame, a slider is slidably connected to the inner wall of the movable groove, a sleeve block is fixedly provided on the outer end of the slider, an electric telescopic rod is fixedly provided on the inner wall of the conveying frame, an end plate is fixedly provided on the lower end of the electric telescopic rod, a spring is fixedly provided between the end plate and the sleeve block, and the spring and the sleeve block are movably sleeved on the outside of the movable rod of the electric telescopic rod.

[0006] Preferably, a belt roller is connected to the conveying frame so as to rotate symmetrically left and right, and the circumferential outer walls of the two belt rollers are drivingly connected to the conveyor belt, and the bottom surface of the conveyor belt abuts against the circumferential outer walls of the two hollow rollers.

[0007] Preferably, the speed detection component includes shaft tubes symmetrically fixed to the side walls of the roller frame, bearings are fixed to the circumferential outer walls of the two shaft tubes, the hollow roller is fixed to the two bearing outer rings, a sensing head is fixed to the inner end of one of the shaft tubes, an internal circuit unit is fixed to the inner end of the other shaft tube, and a detection piece is fixed to the circumferential inner wall of the hollow roller.

[0008] Preferably, a slip controller is fixedly provided on the outer wall of the conveyor frame, the sensor head and the internal circuit unit are electrically connected to the slip controller via a data line, and the shaft tube is movably sleeved on the outside of the data line.

[0009] Preferably, the left and right walls of the conveying frame are symmetrically provided with arc grooves, and the arc grooves are movably sleeved on the outside of the shaft tube.

[0010] Preferably, an alarm is fixedly provided on the outer wall of the conveyor frame, and the slip controller is electrically connected to the alarm.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The free-rolling slip detector, by arranging a roller frame, a hollow roller and a speed detection component, can make one roller frame flip upward when the conveyor belt is running, so that one hollow roller is against the active belt roller, and the speed of the active belt roller is measured, and the other hollow roller measures the conveying speed of the conveyor belt, and compares it with the speed of the active belt roller to detect whether the active belt roller and the conveyor belt are slipping. Similarly, one hollow roller is against the driven belt roller, and the speed of the driven belt roller is measured, and the other hollow roller measures the conveying speed of the conveyor belt to detect whether the driven belt roller and the conveyor belt are slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a side cutaway perspective view of the utility model;

[0015] Figure 3 It is a front cutaway stereogram of the utility model;

[0016] Figure 4 For the utility model Figure 3 A magnified view of the structure at center.

[0017] In the figure: 1. conveyor frame; 2. roller frame; 3. hollow roller; 4. movable groove; 5. slider; 6. sleeve block; 7. electric telescopic rod; 8. end plate; 9. spring; 10. belt roller; 11. conveyor belt; 12. shaft tube; 13. arc groove; 14. sensor head; 15. detection sheet; 16. bearing; 17. internal circuit unit; 18. data line; 19. slip controller; 20. alarm. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-Figure 4 The utility model provides a free-rolling slip detector, including a conveying frame 1, wherein a roller frame 2 is rotatably connected to the conveying frame 1, and hollow rollers 3 are rotatably connected to the two roller frames 2, and a speed detection component is arranged inside the hollow roller 3. A movable groove 4 is opened on the side wall of the roller frame 2, and a slider 5 is slidably connected to the inner wall of the movable groove 4, and a sleeve block 6 is fixedly arranged on the outer end of the slider 5. An electric telescopic rod 7 is fixedly arranged on the inner wall of the conveying frame 1, and an end plate 8 is fixedly arranged on the lower end of the electric telescopic rod 7. A spring 9 is fixedly arranged between the end plate 8 and the sleeve block 6, and the spring 9 and the sleeve block 6 are movably sleeved on the outer side of the movable rod of the electric telescopic rod 7.

[0020] In the present embodiment, preferably, belt rollers 10 are connected to the conveying frame 1 so as to rotate symmetrically left and right, and the circumferential outer walls of the two belt rollers 10 are transmission-connected to the conveyor belt 11, and the bottom surface of the conveyor belt 11 is against the circumferential outer walls of the two hollow rollers 3. The two belt rollers 10 are divided into a driven belt roller 10 and an active belt roller 10 transmission-connected to the driving component. When the driving component drives the active belt roller 10 to rotate, it can drive the driven belt roller 10 to rotate, thereby causing the conveyor belt 11 to operate.

[0021] In this embodiment, preferably, the speed detection component includes a shaft tube 12 symmetrically fixed on the side wall of the roller frame 2, the outer walls of the two shaft tubes 12 are fixed with bearings 16, the hollow roller 3 is fixed with the outer rings of the two bearings 16, the inner end of one of the shaft tubes 12 is fixed with a sensing head 14, the inner end of the other shaft tube 12 is fixed with an internal circuit unit 17, and the inner wall of the hollow roller 3 is fixed with a detection piece 15. When the hollow roller 3 rotates, the detection piece 15 is displaced relative to the sensing head 14, so that the sensing head 14 can detect the speed of the hollow roller 3. The left and right walls of the conveying frame 1 are symmetrically provided with arc grooves 13, and the arc grooves 13 are movably sleeved on the outside of the shaft tubes 12. When the roller frame 2 flips, the shaft tubes 12 slide synchronously along the inner wall of the arc groove 13.

[0022] In this embodiment, preferably, a slip controller 19 is fixedly provided on the outer wall of the conveying frame 1, the sensor head 14 and the internal circuit unit 17 are electrically connected to the slip controller 19 through a data line 18, and the shaft tube 12 is movably sleeved on the outside of the data line 18. After the sensor head 14 detects the rotational speed of the hollow roller 3, the rotational speed data is continuously and uninterruptedly output to the slip controller 19 through the internal circuit unit 17.

[0023] In this embodiment, preferably, an alarm 20 is fixedly provided on the outer wall of the conveyor frame 1, and the slip controller 19 is electrically connected to the alarm 20. After the slip controller 19 detects that the difference between the rotation speed of the belt roller 10 and the running speed of the conveyor belt 11 is greater than the set value, the slip controller 19 outputs an alarm signal to the alarm 20, and the alarm 20 alarms.

[0024] Working principle and use process of the utility model: When the device is used, when the conveyor belt 11 is running, the hollow roller 3 is driven to rotate synchronously, and the detection sheet 15 is displaced relative to the induction head 14, so that the induction head 14 detects the rotation speed of the hollow roller 3, and continuously outputs the rotation speed data to the slip controller 19 through the internal circuit unit 17, and the slip controller 19 calculates the operation speed of the conveyor belt 11 to realize the detection and control of the transportation process of the conveyor belt 11, and starts the electric telescopic rod 7, and the movable rod of the electric telescopic rod 7 drives the end plate 8 to move vertically upward, and the end plate 8 drives the sleeve block 6 to move upward synchronously through the spring 9, and the sleeve block 6 drives the slider 5 Slide upward along the inner wall of the movable groove 4 to make the roller frame 2 flip upward, first make a hollow roller 3 collide with the active belt roller 10, measure the rotation speed of the active belt roller 10, detect whether there is slippage between the active belt roller 10 and the conveyor belt 11, then make another hollow roller 3 collide with the driven belt roller 10, detect whether there is slippage between the driven belt roller 10 and the conveyor belt 11, two slip controllers 19 calculate the rotation speeds of the two belt rollers 10 respectively, when the slip controller 19 detects that the difference between the rotation speed of the belt roller 10 and the running speed of the conveyor belt 11 is greater than the set value, the slip controller 19 outputs an alarm signal to the alarm 20, and the alarm 20 alarms.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A free-rolling skid detector, comprising a conveyor frame (1), Features: The conveying frame (1) is symmetrically and rotatably connected to a roller frame (2) inside, and the two roller frames (2) are both rotatably connected to a hollow roller (3), and a speed detection component is provided inside the hollow roller (3). The side wall of the roller frame (2) is provided with a movable groove (4), and the inner wall of the movable groove (4) is slidably connected to a slider (5), and a sleeve block (6) is fixedly provided at the outer end of the slider (5). An electric telescopic rod (7) is fixedly provided on the inner wall of the conveying frame (1), and an end plate (8) is fixedly provided at the lower end of the electric telescopic rod (7). A spring (9) is fixedly provided between the end plate (8) and the sleeve block (6), and the spring (9) and the sleeve block (6) are both movably sleeved on the outer side of the movable rod of the electric telescopic rod (7).

2. A free-rolling skid detector according to claim 1, Features: The conveying frame (1) is internally connected to belt rollers (10) for symmetrical rotation, and the circumferential outer walls of the two belt rollers (10) are drivingly connected to conveyor belts (11), and the bottom surface of the conveyor belt (11) abuts against the circumferential outer walls of the two hollow rollers (3).

3. A free-rolling skid detector according to claim 1, Features: The rotation speed detection component comprises a shaft tube (12) fixedly mounted on the side wall of the roller frame (2) in a left-right symmetrical manner, the outer walls of the two shaft tubes (12) are fixedly provided with bearings (16), the hollow roller (3) is fixedly mounted on the outer rings of the two bearings (16), the inner end of one of the shaft tubes (12) is fixedly provided with a sensing head (14), the inner end of the other shaft tube (12) is fixedly provided with an internal circuit unit (17), and the inner wall of the hollow roller (3) is fixedly provided with a detection sheet (15).

4. A free-rolling skid detector according to claim 3, Features: A slip controller (19) is fixedly arranged on the outer wall of the conveying frame (1); the induction head (14) and the internal circuit unit (17) are electrically connected to the slip controller (19) via a data line (18); and the shaft tube (12) is movably sleeved on the outer side of the data line (18).

5. A free-rolling skid detector according to claim 3, Features: The left and right walls of the conveying frame (1) are symmetrically provided with arc grooves (13), and the arc grooves (13) are movably sleeved on the outside of the shaft tube (12).

6. A free-rolling skid detector according to claim 4, Features: An alarm (20) is fixedly arranged on the outer wall of the conveying frame (1), and the slip controller (19) is electrically connected to the alarm (20).

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