Roller type optical fiber passive speed measuring device

Abstract

The utility model relates to a roller type optical fiber passive speed measuring device which comprises an installation frame hinged to a support, the installation frame is connected with a speed measuring roller in a coupling mode, the speed measuring roller extends in the width direction of a lower belt, the circumferential face of the speed measuring roller abuts against the lower belt, and the installation frame is further provided with a speed measuring device for measuring the rotating speed of the speed measuring roller. The speed measuring roller is used for replacing a roller, and the speed measuring device is lapped on the lower belt by means of the self weight of the speed measuring device, so that the speed measuring roller is prevented from being separated from the conveying belt like the roller and idling is avoided, and the speed measuring accuracy is ensured; meanwhile, the contact area between the speed measuring roller and the conveying belt is large, and the pressure intensity is small, so that the service life of the conveying belt is prolonged; the connecting plate is hinged to the support, and the baffle is hinged to the connecting plate, so that the speed measuring roller can abut against the lower conveying belt through the gravity of the speed measuring roller, and the relative angle between the speed measuring roller and the support can be adjusted conveniently; the gear teeth are sensed at intervals through the sensing rays in the sensing notch, so that the speed calculation of the speed measuring gear is realized, and the speed measuring stability is higher.

Description

Technical Field

[0001] The utility model relates to the field of conveyor belts, in particular to the technical field of conveyor belt speed measurement, and specifically refers to a roller type optical fiber passive speed measurement device. Background Art

[0002] Belt conveyor is a commonly used material conveying equipment composed of a conveyor belt and a frame for installing the conveyor belt. The conveyor belt of the belt conveyor serves as a carrier for transmitting materials. Its speed is related to the flow rate and weight of the material. Therefore, measuring the speed of the conveyor belt can indirectly obtain the weight of the material, so the stability of the speed is an important factor affecting the result.

[0003] The Chinese utility model application number CN202322242275.3 discloses a stable speed measuring device for a conveyor belt. However, the device relies on a roller on the belt to drive the speed measuring gear to rotate. However, with the long-term use of the conveyor belt, the conveyor belt will become loose and partially collapsed. Since the contact area between the roller and the conveyor belt is small and the pressure is high, the conveyor belt is easily damaged. At the same time, the roller may detach from the conveyor belt and idle, making it impossible to complete the speed measurement of the conveyor belt. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a roller-type optical fiber passive speed measuring device, which uses a speed measuring roller instead of a roller, and relies on the speed measuring device's own weight to rest on the lower belt, thereby ensuring that the speed measuring roller will not detach from the conveyor belt like a roller, thereby idling, thereby ensuring the accuracy of speed measurement.

[0005] The utility model is realized through the following technical scheme: a roller-type optical fiber passive speed measuring device, comprising a mounting frame hinged on a bracket, a speed measuring roller extending along the width direction of a lower belt and with a circumferential surface pressed against the lower belt is axially connected to the mounting frame, and a speed measuring device for measuring the rotation speed of the speed measuring roller is also provided on the mounting frame.

[0006] When the utility model is in use, a speed measuring roller is used instead of a roller, and the speed measuring device is placed on the lower belt by its own weight, to ensure that the speed measuring roller will not separate from the conveyor belt like the roller, thereby idling, thereby ensuring the speed measurement accuracy, and at the same time, the contact area between the speed measuring roller and the conveyor belt is large and the pressure is small, thereby increasing the service life of the conveyor belt.

[0007] Preferably, the speed measuring device includes a speed measuring sealing box located on one side of the speed measuring roller, a speed measuring shaft fixedly connected to the speed measuring roller and extending into the speed measuring sealing box, and a speed measuring gear arranged on the speed measuring shaft and located in the speed measuring sealing box. The speed measuring sealing box is also provided with a speed measuring optical sensor for measuring the rotational speed of the speed measuring gear. The speed measuring shaft is coaxially arranged with the speed measuring roller and the speed measuring shaft is sealed and rotatably connected to the speed measuring sealing box.

[0008] This preferred solution measures the speed of the speed measuring roller through a speed measuring gear, a speed measuring shaft, and a speed measuring sensor.

[0009] Preferably, the mounting frame includes two connecting plates arranged axially along the speed measuring shaft and hinged on the bracket, a baffle hinged on the two connecting plates, and the speed measuring roller axially connected to the baffle, and the speed measuring sealing box is also connected to the baffle.

[0010] This preferred solution is to hinge the connecting plate on the bracket and hinge the baffle on the connecting plate, so that the speed measuring device can be pushed onto the lower conveyor belt by its own gravity and the relative angle between the speed measuring roller and the bracket can be adjusted.

[0011] Preferably, the gear teeth of the speed measuring gear sequentially pass through the sensing notch of the speed measuring optical sensor along the circumferential direction. When in use, the preferred solution senses the gear teeth through the sensing rays in the sensing notch, thereby realizing the speed calculation of the speed measuring gear, and having high speed measurement stability.

[0012] Preferably, the speed measuring sealing box is also connected with a cable gland and a sealing cover.

[0013] This preferred solution facilitates maintenance of the speed measuring sealing box through the provision of a sealing cover, and facilitates wiring through the provision of a cable gland.

[0014] Preferably, the speed measuring shaft is rotatably connected to the side wall of the speed measuring sealing box via a bearing, and the speed measuring shaft is also provided with a spacer sleeve located between the speed measuring gear and the bearing.

[0015] This preferred solution further ensures the stability of speed measurement by setting a spacer sleeve.

[0016] Preferably, the mounting frame is located between the upper belt and the lower belt, the bracket includes a roller frame axially connected to an upper roller, and the mounting frame is hinged to the roller frame.

[0017] This preferred solution reasonably utilizes space by setting the position of the mounting frame and hingedly connecting the mounting frame to the roller frame.

[0018] The beneficial effects of the utility model are as follows: a speed measuring roller is used instead of a roller, and the speed measuring device is placed on the lower belt by its own weight, so as to ensure that the speed measuring roller will not be separated from the conveyor belt like the roller, thereby idling, thereby ensuring the accuracy of speed measurement; at the same time, the contact area between the speed measuring roller and the conveyor belt is large and the pressure is small, thereby improving the service life of the conveyor belt; the setting of the connecting plate being hinged on the bracket and the baffle being hinged on the connecting plate facilitates the speed measuring roller to be pushed onto the lower conveyor belt by its own gravity, and also facilitates the adjustment of the relative angle between the speed measuring roller and the bracket; the induction rays in the sensing notch are used to sense the gear teeth, thereby realizing the speed calculation of the speed measuring gear, and having high speed measurement stability; the setting of the sealing cover facilitates the maintenance of the speed measuring sealing box, and the setting of the cable gland facilitates wiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 It is a side view schematic diagram of the structure of the utility model;

[0021] Figure 3 It is the state diagram of the structure and use of the utility model;

[0022] As shown in the figure:

[0023] 1. Connecting plate, 2. Baffle, 3. Fixed frame, 4. Bearing, 5. Speed ​​measuring roller, 6. Spacer sleeve, 7. Speed ​​measuring gear, 8. Speed ​​measuring optical sensor, 9. Speed ​​measuring sealing box, 10. Sealing cover, 11. Cable gland, 12. Upper belt, 13. Lower belt, 14. Upper roller, 15. Lower roller. DETAILED DESCRIPTION

[0024] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0025] See attached Figure 1-3 The utility model is a roller-type optical fiber passive speed measuring device, including a mounting frame located between an upper belt 12 and a lower belt 13, and a bracket. An upper roller 14 for supporting the upper belt 12 is provided below the upper belt 12, the upper roller 14 is axially connected to the roller frame, and the roller frame is arranged on the bracket. A lower roller 15 for supporting the lower belt 13 is provided below the lower belt 13, the lower roller 15 is axially connected to the lower roller 15 frame, and the lower roller 15 frame is arranged on the bracket.

[0026] The mounting frame includes two connecting plates 1 which are arranged opposite to each other and are both hinged on the bracket, and a baffle plate 2 which is hinged on the two connecting plates 1. A fixing frame 3 is fixedly connected to the baffle plate 2, and a speed measuring roller 5 is axially connected to the fixing frame 3. The two connecting plates 1 are arranged along the axial direction of the speed measuring roller 5. The speed measuring roller 5 spans across the lower belt 13 and its circumferential surface is pressed against the lower belt 13. The mounting frame is also provided with a speed measuring device which is located on one side of the speed measuring roller 5 and measures the rotation speed of the speed measuring roller 5.

[0027] The speed measuring device includes a speed measuring sealed box 9 located on one side of the speed measuring roller 5, a speed measuring shaft fixedly connected to the speed measuring roller 5 and extending into the speed measuring sealed box 9, and a speed measuring gear 7 arranged on the speed measuring shaft and located in the speed measuring sealed box 9. The speed measuring sealed box 9 is also connected to the baffle 2. A speed measuring optical sensor 8 for measuring the rotational speed of the speed measuring gear 7 is also arranged in the speed measuring sealed box 9. The speed measuring shaft is coaxially arranged with the speed measuring roller 5 and the speed measuring shaft is sealed and rotatably connected to the speed measuring sealed box 9.

[0028] The teeth of the speed measuring gear 7 pass through the sensing notch of the speed measuring optical sensor 8 in sequence along the circumferential direction. The speed measuring sealing box 9 is also connected to a gland 11 and a sealing cover 10. The speed measuring shaft is rotatably connected to the side wall of the speed measuring sealing box 9 through a bearing 4. The speed measuring shaft is also provided with a spacer sleeve 6 located between the speed measuring gear 7 and the bearing 4.

[0029] When the utility model is in use, a speed measuring roller 5 is used instead of a roller, and the speed measuring device is placed on the lower belt 13 by its own weight, so as to ensure that the speed measuring roller 5 will not be separated from the conveyor belt like the roller, thereby idling, thereby ensuring the accuracy of speed measurement; the setting of the connecting plate 1 being hinged on the bracket and the baffle plate 2 being hinged on the connecting plate 1 facilitates the speed measuring roller 5 to be pushed onto the lower conveyor belt by the speed measuring device's own gravity, and also facilitates the adjustment of the relative angle between the speed measuring roller 5 and the bracket; the induction rays in the sensing notch are spaced apart from the induction gear teeth, thereby realizing the speed calculation of the speed measuring gear 7, and having high speed measurement stability; the setting of the sealing cover 10 facilitates the maintenance of the speed measuring sealing box 9, and the setting of the cable gland 11 facilitates wiring and wiring.

[0030] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A roller-type optical fiber passive speed measuring device, characterized in that: It comprises a mounting frame hinged on a bracket, a speed measuring roller (5) extending along the width direction of a lower belt (13) and with a circumferential surface pressed against the lower belt (13) is axially connected to the mounting frame, and a speed measuring device for measuring the rotation speed of the speed measuring roller (5) is also provided on the mounting frame.

2. The roller-type optical fiber passive speed measuring device according to claim 1, characterized in that: The speed measuring device comprises a speed measuring sealed box (9) located on one side of the speed measuring roller (5), a speed measuring rotating shaft fixedly connected to the speed measuring roller (5) and extending into the speed measuring sealed box (9), and a speed measuring gear (7) arranged on the speed measuring rotating shaft and located in the speed measuring sealed box (9). A speed measuring optical sensor (8) for measuring the rotation speed of the speed measuring gear (7) is also arranged in the speed measuring sealed box (9). The speed measuring rotating shaft is coaxially arranged with the speed measuring roller (5) and is rotatably connected to the speed measuring sealed box (9) in a sealed manner.

3. The roller-type optical fiber passive speed measuring device according to claim 2, characterized in that: The mounting frame comprises two connecting plates (1) arranged along the axial direction of the speed measuring shaft and hinged on the bracket, a baffle (2) hinged on the two connecting plates (1), and the speed measuring roller (5) axially connected to the baffle (2), and the speed measuring sealing box (9) is also connected to the baffle (2).

4. The roller-type optical fiber passive speed measuring device according to claim 2, characterized in that: The gear teeth of the speed measuring gear (7) sequentially pass through the sensing notch of the speed measuring optical sensor (8) along the circumferential direction.

5. The roller-type optical fiber passive speed measuring device according to claim 2, characterized in that: The speed measuring sealing box (9) is also connected to a cable gland (11) and a sealing cover (10).

6. The roller-type optical fiber passive speed measuring device according to claim 2, characterized in that: The speed measuring shaft is rotatably connected to the side wall of the speed measuring sealing box (9) via a bearing (4), and a spacer sleeve (6) is also provided on the speed measuring shaft and is located between the speed measuring gear (7) and the bearing (4).

7. The roller-type optical fiber passive speed measuring device according to claim 1, characterized in that: The mounting frame is located between the upper belt (12) and the lower belt (13), the bracket comprises a roller frame axially connected to an upper roller, and the mounting frame is hinged on the roller frame.

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