Belt conveyor head with anti-slip function

Abstract

The utility model discloses a belt conveyor head with an anti-slip function, which belongs to the technical field of belt transportation and comprises a conveying support, and a limiting structure is arranged on the conveying support and comprises a driving roller structure and a conveying belt. The driving roller structure comprises a driven gear connected with the power mechanism, a driving roller and convex rubber teeth; the driven gear is connected with the end of the transmission roller, convex rubber teeth are arranged on the outer surface of the transmission roller, and a plurality of clamping teeth are arranged on the inner surface of the conveying belt. The clamping teeth and the convex rubber teeth are of a long-strip-shaped structure and are both perpendicular to the transmission direction of the belt. The clamping teeth are arranged on the inner surface of the conveying belt at equal intervals, and the convex rubber teeth are meshed with the clamping teeth. And a monitoring mechanism is arranged above the conveying belt. According to the belt conveyor, the situation that the conveying belt slips in the conveying process can be avoided, the conveying stability is improved, the belt slipping phenomenon can be monitored in time in the running process of the belt conveyor, and then an alarm signal is sent out.

Description

Technical Field

[0001] The utility model belongs to the technical field of belt transportation, and in particular relates to a belt conveyor head with an anti-slip function. Background Art

[0002] As we all know, belt conveyor, also known as belt conveyor, is a mechanical device that transports materials in a continuous manner by friction drive. It is widely used in material transportation and processing lines in many industries such as coal, mining, electronics, hardware, food, printing, etc. The belt conveyor head is the core part of the entire belt conveyor system, playing an important role in transmission and introduction of materials. Therefore, ensuring the safe and normal operation of the head is one of the necessary conditions to ensure the safe and normal operation of the belt conveyor.

[0003] At present, in traditional belt conveyors, the outer surface of the drive roller is usually designed to have a certain friction coefficient, such as setting a certain thickness of rubber coating to increase the friction between the conveyor belt and the conveyor belt. This helps to ensure that the conveyor belt is subjected to sufficient traction to effectively convey materials. The conveyor belt is wrapped around the outer surface of the drive roller, and by applying sufficient driving force, the drive roller can guide the conveyor belt to start rolling. The friction force makes the conveyor belt adhere closely to the surface of the drive roller, thereby pulling the conveyor belt forward.

[0004] During use, it was found that the belt conveyor with the above structure still has the following defects:

[0005] First, the surface materials of the drive roller and the conveyor belt are smooth, and the friction between the two decreases as the belt conveyor runs longer. The conveyor roller rotates at a constant speed under the power of the drive motor, but the conveyor belt gradually decreases until it stops. The speed of the conveyor belt is less than that of the conveyor roller. This phenomenon is called belt conveyor head loss or conveyor belt slippage.

[0006] Secondly, the conveyor head lacks a structure to monitor and warn the conveyor belt. If slippage persists, the conveyor belt may break due to excessive wear, affecting the working process. In addition, slippage may generate a lot of heat, especially during the friction between the conveyor belt and the drive roller, which may cause overheating of the conveyor belt, drive roller or nearby objects, and eventually cause a fire, which is very dangerous. Utility Model Content

[0007] The utility model aims to provide a belt conveyor head with an anti-skid function to solve the technical problems of conveyor belt slippage and lack of a conveyor head structure for monitoring and warning the conveyor belt proposed in the above background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A belt conveyor head with an anti-skid function comprises a conveying bracket, which provides support and fixation for the entire belt conveyor head device; a limiting structure is arranged on the conveying bracket, and the limiting structure can increase the friction between the transmission roller and the conveying belt during the operation of the belt conveyor to avoid the occurrence of the conveying belt slipping phenomenon, and the limiting structure comprises a transmission roller structure and a conveying belt; the transmission roller structure comprises a driven gear, a transmission roller and a convex rubber tooth connected to a power mechanism; the driven gear is connected to the end of the transmission roller, the outer surface of the transmission roller is provided with a convex rubber tooth, and the inner surface of the conveying belt is provided with a plurality of latch teeth, the latch teeth and the convex rubber tooth are long strip structures, and the latch teeth and the convex rubber tooth are perpendicular to the transmission direction of the belt; the latch teeth are arranged on the inner surface of the conveying belt at equal intervals, and the convex rubber tooth and the latch teeth are meshed with each other, which further limits the synchronization of the operation of the transmission roller and the conveying belt and avoids the phenomenon of the conveying belt slipping.

[0010] Preferably, the conveying bracket includes two support plates parallel to each other, the limiting structure is installed on the top of the conveying bracket, the power mechanism includes a driving motor and a driving gear, the power output shaft of the driving motor is connected to the driving gear, and the driving motor is connected to the driven gear through a chain.

[0011] Preferably, there are two transmission rollers, and the ends of the same side of the two transmission rollers are respectively connected to a driven gear, and the two driven gears and the driving gear are located in the same plane, so that the driving gear and the driven gear are connected through a chain. The driving gear and the driven gear have different gear ratios or diameters. Due to the gear transmission principle, the gears have different gear numbers or diameters, which facilitates the realization of deceleration or acceleration transmission.

[0012] Preferably, the belt conveyor head with anti-skid function also includes a monitoring mechanism arranged above the conveyor belt, which can timely monitor the belt slippage during the operation of the belt conveyor and send out an alarm signal.

[0013] Preferably, the monitoring mechanism includes a guide slide bar and a bidirectional lead screw arranged above the conveyor belt, the guide slide bar and the bidirectional lead screw are perpendicular to the transmission direction of the conveyor belt, the guide slide bar and the bidirectional lead screw are in the same vertical plane, the guide slide bar and the bidirectional lead screw are connected to a monitoring bracket, and a photoelectric switch is installed on the monitoring bracket; a plurality of reflective patches are arranged on the upper surface of the conveyor belt below the photoelectric switch, and the reflective patches are arranged at equal intervals to ensure that the frequency of the light signal reflected by the reflective patch is constant when the conveyor belt is operating normally, thereby reducing errors.

[0014] Preferably, the monitoring mechanism also includes a monitoring mechanism housing, which includes a top cover located above the guide slide rod and side panels located at both ends of the guide slide rod, the two sides of the top cover are connected to the top panels of the two side panels, and the two ends of the guide slide rod are connected to the two side panels.

[0015] Preferably, the photoelectric switch is connected to the IO port of the PLC via a data line, and the photoelectric switch is turned on after receiving the light signal reflected by the reflective patch, thereby realizing real-time monitoring of the running speed of the conveyor belt.

[0016] Preferably, the photoelectric switch is an E3Z-R61 retro-reflective photoelectric sensor.

[0017] Preferably, the IO port of the PLC is connected to an alarm.

[0018] Preferably, there are two photoelectric switches and two columns of reflective patches, which can achieve redundant control. When one photoelectric switch fails, the other photoelectric switch can work normally, thereby ensuring the normal and stable operation of the belt conveyor.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model provides a limiting structure, and through the arrangement of the transmission roller, the driven gear, the convex rubber teeth, the conveyor belt, and the latching teeth, it is possible to improve the friction between the transmission roller and the conveyor belt during the operation of the belt conveyor, and prevent the transmission roller and the conveyor belt from slipping. The convex rubber teeth on the outer surface of the transmission roller and the latching teeth on the inner surface of the conveyor belt are meshed with each other. When the belt conveyor is running, the convex rubber teeth drive the latching teeth to rotate together, thereby increasing the friction between the rotating roller and the conveyor belt, which helps to avoid the conveyor belt from slipping during transportation and improves the stability and reliability of transportation.

[0021] 2. The utility model can timely monitor the slippage of the conveyor belt during the operation of the belt conveyor by setting the monitoring mechanism, the housing of the monitoring mechanism, the guide slide rod, the bidirectional screw, the monitoring bracket, the photoelectric switch and the reflective patch, and then send an alarm signal to call the operator to stop the belt conveyor and check; the guide slide rod combined with the bidirectional screw can meet the operator's fine-tuning of the monitoring bracket position according to the width of the conveyor belt, and ensure that the photoelectric switch accurately receives the light signal reflected by the reflective patch. The photoelectric switch can emit light signals and receive the light signals reflected back. When the belt works normally, the photoelectric switch can periodically detect the existence of the transmitting patch. When the belt slips, the photoelectric switch cannot periodically detect the existence of the reflective patch. At this time, the photoelectric switch sends a trigger signal to the PLC. After receiving the trigger signal, the PLC sends a stop command to the drive motor on the one hand, and sends an alarm command to the alarm on the other hand; there are two photoelectric switches, and the reflective patch has two columns, which can realize redundant control. When one photoelectric switch fails, the other photoelectric switch can work normally, ensuring the normal and stable operation of the belt conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the side section structure of the transmission roller in the utility model;

[0025] Figure 3 This is a schematic diagram of the top-down section structure of the delivery bracket in the utility model;

[0026] Figure 4 It is a schematic diagram of the top view of the conveyor belt structure in the utility model;

[0027] Figure 5 It is a schematic diagram of the front section structure of the housing of the monitoring mechanism in the utility model.

[0028] in:

[0029] 1. Conveying bracket; 2. Driving roller; 3. Limiting structure; 4. Conveying belt; 5. Driven gear; 6. Monitoring mechanism; 7. Monitoring mechanism housing; 8. Driving gear; 9. Gear; 10. Driving motor; 11. Guide slide bar; 12. Bidirectional lead screw; 13. Monitoring bracket; 14. Photoelectric switch; 15. Reflective patch; 16. Conveyor tooth. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0031] like Figures 1 to 5 As shown:

[0032] First embodiment: A belt conveyor head with an anti-slip function, including a conveying bracket 1, a limiting structure 3 is arranged on the conveying bracket 1, and the limiting structure 3 includes a transmission roller structure and a conveying belt 4; the transmission roller structure includes a driven gear 5 connected to a power mechanism, a transmission roller 2 and a convex rubber tooth 16; the driven gear 5 is connected to the end of the transmission roller 2, the outer surface of the transmission roller 2 is provided with a convex rubber tooth 16, and the inner surface of the conveying belt 4 is provided with a plurality of latch teeth 9; the latch teeth 9 and the convex rubber teeth 16 are long strip structures, and the latch teeth 9 and the convex rubber teeth 16 are perpendicular to the transmission direction of the belt 4; the latch teeth 9 are arranged on the inner surface of the conveying belt 4 at equal intervals, and the convex rubber teeth 16 are meshed with the latch teeth 9.

[0033] Second embodiment: Based on the above-mentioned first embodiment, the conveying bracket 1 includes two support plates parallel to each other, the limiting structure 3 is installed on the top of the conveying bracket 1, and the power mechanism includes a driving motor 10 and a driving gear 8. The power output shaft of the driving motor 10 is connected to the driving gear 8, and the driving motor 10 is connected to the driven gear 5 through a chain.

[0034] The third embodiment: Based on the above-mentioned first embodiment, there are two transmission rollers 2, and the same side ends of the two transmission rollers 2 are respectively connected to a driven gear 5, the two driven gears 5 and the driving gear 8 are located in the same plane, and the driving gear 8 and the driven gear 5 have different tooth ratios or diameters.

[0035] Fourth embodiment: Based on the above-mentioned first embodiment, the belt conveyor head with anti-slip function further includes a monitoring mechanism 6 arranged above the conveying belt 4.

[0036] Fifth embodiment: On the basis of the fourth embodiment, the monitoring mechanism 6 includes a guide slide bar 11 and a bidirectional lead screw 12 arranged above the conveyor belt 4, the guide slide bar 11 and the bidirectional lead screw 12 are perpendicular to the transmission direction of the belt 4, the guide slide bar 11 and the bidirectional lead screw 12 are in the same vertical plane, the guide slide bar 11 and the bidirectional lead screw 12 are connected with a monitoring bracket 13, and a photoelectric switch 14 is installed on the monitoring bracket 13. The guide slide bar 11 combined with the bidirectional lead screw 12 can meet the operator's need to fine-tune the position of the monitoring bracket according to the width of the conveyor belt 4, so as to ensure that the photoelectric switch 14 accurately receives the light signal reflected by the reflective patch 15; a plurality of reflective patches 15 are arranged on the outer edge of the upper surface of the conveyor belt 4 below the photoelectric switch 14, and the reflective patches 15 are arranged at equal intervals to ensure that the frequency of the light signal reflected by the reflective patch 15 is constant when the conveyor belt 4 is operating normally, thereby reducing errors.

[0037] Sixth embodiment: On the basis of the above-mentioned fifth embodiment, the monitoring mechanism 6 includes a monitoring mechanism housing 7, and the monitoring mechanism housing includes a top cover located above the guide slide bar 11 and side panels located at both ends of the guide slide bar 11, the two sides of the top cover are connected to the top panels of the two side panels, and the two ends of the guide slide bar 11 are connected to the two side panels.

[0038] Seventh embodiment: Based on the above-mentioned fifth embodiment, the photoelectric switch 14 is connected to the I0 port of the PLC through a data line. The I0 port of the PLC is connected to an alarm. When the belt slips, the photoelectric switch cannot periodically detect the presence of the reflective patch. At this time, the photoelectric switch 14 sends a trigger signal to the PLC. After receiving the trigger signal, the PLC sends a stop command to the drive motor 10 on the one hand, and sends an alarm command to the alarm on the other hand.

[0039] Eighth embodiment: Based on the seventh embodiment, there are two photoelectric switches 14 and two columns of reflective patches 15, which can achieve redundant control. When one photoelectric switch 14 fails, the other photoelectric switch 14 can work normally, ensuring the normal and stable operation of the belt conveyor.

[0040] In the utility model, the conveying bracket 1 provides support and fixation for the entire belt conveyor head, the driving motor 10 provides power, drives the driving gear 8 to rotate, the driving gear 8 drives the driven gear 5 to rotate through the chain, the driven gear 5 is connected to the transmission roller 2, the driven gear 5 rotates to drive the transmission roller 2 to rotate, the transmission roller 2 uses the convex rubber teeth 16 to transmit power to the conveying belt 4 with the inner surface provided with the clamping teeth 9, and drives the conveying belt 4 to run and transport materials. A limiting structure 3 is arranged above the conveying bracket 1, the limiting structure 3 is used to increase the friction between the transmission roller 2 and the belt to prevent the conveying belt 4 from slipping, the limiting structure 3 includes a transmission roller structure and a conveying belt 4, the transmission roller structure includes a driven gear 5, a transmission roller 2, and a convex rubber tooth 16, the driven gear 5 is arranged on one side of the transmission roller 2, the outer surface of the transmission roller 2 is provided with a convex rubber tooth 16, the inner surface of the conveying belt 4 is provided with a plurality of clamping teeth, the clamping teeth 9 are arranged on the inner surface of the conveying belt 4 at equal intervals, and the convex rubber teeth 16 and the clamping teeth 9 are meshed with each other. A monitoring mechanism 6 is arranged above the conveying belt 4. The monitoring mechanism 6 is used to monitor whether the conveyor belt 4 slips. If slipping occurs, the machine is stopped and an alarm signal is sent. The monitoring mechanism 6 includes a monitoring mechanism housing 7, a guide slide bar 11, a bidirectional lead screw 12, a monitoring bracket 13, a photoelectric switch 14 and a reflective patch 15. The monitoring mechanism housing 7 is the housing of the monitoring mechanism 6, and other key components of the monitoring mechanism 6 are installed inside it. The guide slide bar 11 and the bidirectional lead screw 12 are arranged above the conveyor belt 4. The guide slide bar 11 and the bidirectional lead screw 12 are perpendicular to the transmission direction of the conveyor belt 4. The guide slide bar 11 and the bidirectional lead screw 12 are in the same vertical plane. The guide slide bar 11 and the bidirectional lead screw 12 are connected to a monitoring bracket 13, and two photoelectric switches 14 are installed on the monitoring bracket 13; the guide slide bar 11 combined with the bidirectional lead screw 12 can meet the operator's need to accurately adjust the position of the monitoring bracket 13 according to the width of the conveyor belt 4, ensuring that the photoelectric switch 14 accurately receives the light signal reflected by the reflective patch 15; the two photoelectric switches 14 can realize redundant control. When one photoelectric switch 14 fails, the other photoelectric switch 14 can work normally to ensure the normal and stable operation of the belt conveyor. The photoelectric switch 14 is mounted on the monitoring bracket 13, and the reflective patches 15 are evenly spaced and attached to the outer edge of the outer surface of the conveyor belt 4 to ensure that the frequency of the optical signal reflected by the reflective patches 15 is constant when the conveyor belt 4 is operating normally, thereby reducing errors.

[0041] Working principle:

[0042] Before the operation of the belt conveyor, the operator engages the convex rubber teeth 16 provided on the outer surface of the driving roller 2 with the latch teeth 9 evenly provided on the inner surface of the conveying belt 4, and then accurately adjusts the width between the two monitoring brackets 13 through the guide slide bar 11 and the bidirectional lead screw 12, so that the photoelectric switch 14 is aligned with the outer edge of the outer surface of the conveying belt 4. After alignment, the operator installs the reflective patch 15 on the outer edge of the outer surface of the conveying belt 4, so that the reflective patch 15 and the photoelectric switch 14 are aligned with each other.

[0043] During the operation of the belt conveyor, when the power is turned on, the drive motor 10 starts to run, driving the master and slave gears to rotate. The master and slave gears drive the transmission roller 2 to rotate, and the convex rubber teeth 16 on the surface of the transmission roller 2 drive the latching teeth 9 on the inner surface of the conveyor belt 4 to mesh and rotate. The conveyor belt 4 starts to run at a certain speed, and the monitoring mechanism 6 starts to work at the same time. The photoelectric switch 14 emits a light signal to the outer edge of the outer surface of the conveyor belt 4. When the belt works normally, the photoelectric switch 14 can periodically detect the presence of the transmitting patch. When the belt slips, the photoelectric switch 14 cannot periodically detect the presence of the reflective patch. At this time, the photoelectric switch 14 sends a trigger signal to the PLC. After receiving the trigger signal, the PLC sends a stop command to the drive motor 10 on the one hand, and sends an alarm command to the alarm on the other hand.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A belt conveyor head with an anti-slip function, comprising a conveying bracket (1), characterized in that: The conveying bracket (1) is provided with a limit structure (3), and the limit structure (3) comprises a transmission roller structure and a conveying belt (4); the transmission roller structure comprises a driven gear (5) connected to a power mechanism, a transmission roller (2) and a convex rubber tooth (16); the driven gear (5) and the end of the transmission roller (2) are connected, the outer surface of the transmission roller (2) is provided with a convex rubber tooth (16), and the inner surface of the conveying belt (4) is provided with a plurality of latch teeth (9); the latch teeth (9) and the convex rubber teeth (16) are long strip structures, and the latch teeth (9) and the convex rubber teeth (16) are perpendicular to the transmission direction of the belt (4); the latch teeth (9) are arranged at equal intervals on the inner surface of the conveying belt (4), and the convex rubber teeth (16) and the latch teeth (9) are meshed with each other.

2. The belt conveyor head with anti-slip function according to claim 1, characterized in that: The conveying support (1) comprises two supporting plates which are parallel to each other. The limiting structure (3) is installed on the top of the conveying support (1). The power mechanism comprises a driving motor (10) and a driving gear (8). The power output shaft of the driving motor (10) is connected to the driving gear (8). The driving motor (10) is connected to the driven gear (5) via a chain.

3. The belt conveyor head with anti-slip function according to claim 2, characterized in that: There are two transmission rollers (2), and the ends of the same side of the two transmission rollers (2) are respectively connected to a driven gear (5), and the two driven gears (5) and the driving gear (8) are located in the same plane. The driving gear (8) and the driven gear (5) have different gear ratios or diameters.

4. The belt conveyor head with anti-slip function according to claim 1, characterized in that: It also includes a monitoring mechanism (6) arranged above the conveying belt (4).

5. The belt conveyor head with anti-slip function according to claim 4, characterized in that: The monitoring mechanism (6) comprises a guide slide bar (11) and a bidirectional lead screw (12) arranged above the conveyor belt (4); the guide slide bar (11) and the bidirectional lead screw (12) are perpendicular to the transmission direction of the belt (4); the guide slide bar (11) and the bidirectional lead screw (12) are in the same vertical plane; the guide slide bar (11) and the bidirectional lead screw (12) are connected to a monitoring bracket (13); a photoelectric switch (14) is installed on the monitoring bracket (13); a plurality of reflective patches (15) are arranged on the upper surface of the conveyor belt (4) below the photoelectric switch (14); the reflective patches (15) are arranged at equal intervals.

6. The belt conveyor head with anti-slip function according to claim 5, characterized in that: The monitoring mechanism (6) also includes a monitoring mechanism housing (7), the monitoring mechanism housing including a top cover located above the guide slide bar (11) and side panels located at both ends of the guide slide bar (11), the two sides of the top cover are connected to the top panels of the two side panels, and the two ends of the guide slide bar (11) are connected to the two side panels.

7. The belt conveyor head with anti-slip function according to claim 5, characterized in that: The photoelectric switch (14) is connected to the IO port of the PLC via a data line.

8. The belt conveyor head with anti-skid function according to claim 7, characterized in that: The photoelectric switch (14) is an E3Z-R61 regressive reflective photoelectric sensor.

9. The belt conveyor head with anti-slip function according to claim 7, characterized in that: The IO port of the PLC is connected with an alarm.

10. The belt conveyor head with anti-slip function according to claim 7, characterized in that: There are two photoelectric switches (14) and two columns of reflective patches (15).

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