阅读说明：本技术 皮带输送装置及皮带打滑检测方法 (Belt conveyor and belt slippage detection method ) 是由 章韦伟 李文灿 郭天文 曹琦 蒋景强 邓春宁 吴贤彬 许海涛 魏玉法 陈启纲 张 于 2019-09-09 设计创作，主要内容包括：本申请提供了一种皮带输送装置及皮带打滑检测方法。皮带输送装置包括主动辊、从动辊、皮带和皮带打滑检测装置,皮带打滑检测装置包括：第一检测机构,与主动辊配合设置,用于检测主动辊的转动信息以形成主动辊转动信号；第二检测机构,与从动辊配合设置,用于检测从动辊的转动信息以形成从动辊转动信号；和控制装置,与第一检测机构和第二检测机构信号连接,控制装置被设置为接收主动辊检测信号和从动辊检测信号,并根据主动辊检测信号和从动辊检测信号判断皮带是否打滑,在判断皮带打滑时形成皮带打滑检测信号。本申请提供的皮带输送装置和皮带打滑检测方法可以有效检测皮带的打滑现象,检测迅速及时。(This application provides a kind of belt conveyor and belt slippage detection methods.Belt conveyor includes drive roll, driven voller, belt and belt skidding detecting device, and belt skidding detecting device includes: the first testing agency, is equipped with drive roll, for detecting the rotation information of drive roll to form drive roll turn signal；Second testing agency, is equipped with driven voller, for detecting the rotation information of driven voller to form driven voller turn signal；And control device, it is connect with the first testing agency and second testing agency's signal, control device is arranged to receive drive roll detection signal and driven voller detection signal, and judge whether belt skids according to drive roll detection signal and driven voller detection signal, belt slippage is formed when judging belt slippage detects signal.Belt conveyor provided by the present application and belt slippage detection method can effectively detect the slipping phenomenon of belt, and detection is timely rapidly.)

1. a kind of belt conveyor, including drive roll (20), driven voller (30), be set in the drive roll (20) and it is described from The belt skidding detecting device whether belt (40) and the detection belt (40) on dynamic roller (30) skid, which is characterized in that The belt skidding detecting device includes:

First testing agency (50) is equipped with the drive roll (20), and the rotation for detecting the drive roll (20) is believed Breath is to form drive roll turn signal；

Second testing agency (60) is equipped with the driven voller (30), and the rotation for detecting the driven voller (30) is believed Breath is to form driven voller turn signal；With

Control device (70) is connect, the control with first testing agency (50) and second testing agency (60) signal Device (70) processed is arranged to receive the drive roll detection signal and driven voller detection signal, and according to the drive roll Detection signal and driven voller detection signal judge whether the belt (40) skids, when judging that the belt (40) skid It forms belt slippage and detects signal.

2. belt conveyor according to claim 1, which is characterized in that

First testing agency (50) includes being set on the drive roll (20) to rotate synchronously with the drive roll (20) First detection sign structure (52) and for detect it is described first detection sign structure (52) the first noncontacting proximity sensor (51), first noncontacting proximity sensor (51) connect with the control device (70) signal, the first contactless biography Sensor (51) often detects that primary first detection sign structure (52) exports first pulse signal, the drive roll inspection Surveying signal includes first pulse signal；And/or

Second testing agency (60) include be set on the driven voller (30) with rotated synchronously with the driven voller the Two detect sign structure (62) and the second noncontacting proximity sensor (61) for detecting second detection sign structure (62), Second noncontacting proximity sensor (61) connect with the control device (70) signal, second noncontacting proximity sensor (61) often detect that primary second detection sign structure (62) exports second pulse signal, the driven voller detection letter Number include second pulse signal.

3. belt conveyor according to claim 2, which is characterized in that

First detection sign structure (52) includes that the first screw on the drive roll (20), the first pin, the is arranged One protrusion, the first groove or the first magnet；First noncontacting proximity sensor (51) includes the first inductive detector, the first electricity Hold detector or the first photoelectric detector；And/or

Second detection sign structure (62) includes that the second screw on the driven voller (30), the second pin, the is arranged Two protrusions, the second groove or the second magnet；Second noncontacting proximity sensor (52) includes the second inductive detector, the second electricity Hold detector or the second photoelectric detector.

4. belt conveyor according to claim 1, which is characterized in that the belt skidding detecting device further includes report Alarm device (80), the warning device (80) connect with the control device (70) signal, and the control device (70) is set Warning device (80) the sending alarm signal is controlled to detect signal according to the belt slippage.

5. belt conveyor according to claim 4, which is characterized in that the warning device (80) includes phonation unit (81), at least one luminescence unit (82) and vibration unit.

6. belt conveyor according to any one of claim 1 to 5, which is characterized in that

The drive roll turn signal includes the first pulse signal for representing the rotation period of the drive roll (20)；It is described driven Roller turn signal includes the second pulse signal for representing the rotation period of the driven voller (30)；

The control device (70) is arranged to calculate the number of pulses of first pulse signal and second pulse signal Difference, when the number of pulses difference reaches a predetermined pulse quantity difference, the control device judges the belt slippage and forms institute State belt slippage detection signal.

7. belt conveyor according to claim 6, which is characterized in that the control device (70) is arranged to calculate It is every to receive primary first pulse signal then the first numerical value of the number of pulses difference increase when number of pulses difference, often connect Receiving primary second pulse signal, then the number of pulses difference reduces second value, wherein first numerical value and described the The ratio of two numerical value is equal with the diameter ratio of the driven voller (30) with the drive roll (20).

8. belt conveyor according to claim 6, which is characterized in that the control device is arranged to belt slippage When the detection cycle of detection device reaches a default detection cycle, the number of pulses difference is reset.

9. a kind of belt slippage detection method of belt conveyor, comprising:

The rotation information of the drive roll (20) of the belt conveyor is detected to form drive roll turn signal；

The rotation information of the driven voller (30) of the belt conveyor is detected to form driven voller turn signal；With

Signal is detected according to the drive roll and driven voller detection signal judges the belt (40) of the belt conveyor Whether skid, forms belt slippage detection signal when judging that the belt (40) skid.

10. belt slippage detection method according to claim 9, which is characterized in that

By one first noncontacting proximity sensor (51) detection be set on the drive roll (20) with the drive roll (20) The first detection sign structure (52) rotated synchronously, first noncontacting proximity sensor (51) often detect primary described first It detects sign structure (52) and exports first pulse signal, the drive roll detection signal includes first pulse signal； And/or

By one second noncontacting proximity sensor (61) detection be set on the driven voller (30) with the driven voller (30) The second detection sign structure (62) rotated synchronously, second noncontacting proximity sensor (61) often detect primary described second It detects sign structure (62) and exports second pulse signal, the driven voller detection signal includes second pulse signal.

11. belt slippage detection method according to claim 9, which is characterized in that further include according to the belt slippage It detects signal and issues alarm signal.

12. the belt slippage detection method according to any one of claim 9 to 11, which is characterized in that

The drive roll turn signal includes the first pulse signal for representing the rotation period of the drive roll (20)；

The driven voller turn signal includes the second pulse signal for representing the driven voller (30) rotation period；

Forming the belt slippage detection signal includes the pulse for calculating first pulse signal and second pulse signal Quantity is poor, when the number of pulses difference reaches a predetermined pulse quantity difference, judges the belt slippage and form the belt to beat Sliding detection signal.

13. belt slippage detection method according to claim 12, which is characterized in that when calculating the number of pulses difference, It is every to receive primary first pulse signal then the first numerical value of the number of pulses difference increase, every primary second pulse of reception Number of pulses difference described in signal reduces second value, wherein the ratio and the master of first numerical value and the second value Dynamic roller (20) are equal with the diameter ratio of the driven voller (30).

14. belt slippage detection method according to claim 12, which is characterized in that the belt skidding detecting device When detection cycle reaches a default detection cycle, the number of pulses difference is reset.

Technical field

This application involves transmission equipment technical field, in particular to a kind of belt conveyor and belt slippage detection side Method.

Background technique

Belt conveyor is low in cost with its, and failure rate is low, has obtained during industrial and agricultural production material transferring non- Often it is widely applied.But when using belt conveyor, usually can because of belt tightening not enough, overload, live-roller Belt slippage phenomenon occurs for the reasons such as the frictional force deficiency between belt.After belt slippage, material not only cannot be normally conveyed, Also easily cause feed blocking, in some instances it may even be possible to belt conveyor be caused to damage.

In order to find belt slippage in time, belt skidding detecting device can be installed.Fig. 1 is the relevant technologies with belt The structural schematic diagram of the belt conveyor of slip detector.As shown in Figure 1, belt conveyor 2 includes belt and support Roller 23, the surface for carrying material of belt are belt working face 21, are belt with the surface that belt working face 21 is away from each other Non-working surface 22.Belt skidding detecting device 3 includes the detection wheel of one with the belt non-working surface 22 of belt conveyor 2 31, detection wheel 31 is connected on the fixed structure of belt conveyor by connection structure 32.When belt conveyor is run, skin Detection wheel 31 is driven to rotate with the frictional force between non-working surface 22 and detection wheel 31, the detection machine of belt skidding detecting device 3 Structure is used to detect the rotation information of detection wheel 31 and generates pulse signal, to convert periodical arteries and veins for the speed of service of belt Rush signal, control device 1 is connect to receive the pulse signal with testing agency, and is passed through according to the pulse signal pre-set Time parameter judges whether belt skids.

During realizing the application, inventor has found that the above the relevant technologies have the following problems:

The installation site of detection wheel 31 is limited.The diameter of detection wheel 31 generally at 5 centimetres or more, for some belts compared with Short, support roller 23 is more or belt upper band and lower band between hypotelorism belt conveyor, it tends to be difficult to it is suitable to find Installation site.

The operational reliability of detection wheel 31 is difficult to ensure.Since detection wheel 31 needs that belt is followed to rotate, when detection wheel 31 When situations such as frictional force is insufficient between belt, detection wheel 31 is stuck occurs, slipping device false alarm may cause.Especially in environment Under the workplaces such as dust is larger, frequent purging, outdoor, detection wheel 31 is more easier to fail.

When belt conveyor speed changes, or when belt conveyor is retrofitted to other transmission lines, generally require Again adjustment alarm parameters.It is longer for some Acceleration of starting times, or deceleration time longer belt conveyor is shut down, It may need to shield alarm in starting and shutdown.

Summary of the invention

The application first aspect provides a kind of belt conveyor, including drive roll, driven voller, is set in the drive roll The belt skidding detecting device whether to skid with the belt on the driven voller with the detection belt, the belt slippage detection Device includes:

First testing agency is equipped with the drive roll, for detecting the rotation information of the drive roll to be formed Drive roll turn signal；

Second testing agency is equipped with the driven voller, for detecting the rotation information of the driven voller to be formed Driven voller turn signal；With

Control device is connect with first testing agency and second testing agency signal, the control device quilt It is set as receiving the drive roll detection signal and driven voller detection signal, and signal and institute is detected according to the drive roll It states driven voller detection signal and judges whether the belt skids, form belt slippage detection letter when judging the belt slippage Number.

In the belt conveyor of some embodiments,

First testing agency includes the first inspection being set on the drive roll to rotate synchronously with the drive roll Sign structure and the first noncontacting proximity sensor for detecting the first detection sign structure are surveyed, described first is contactless Sensor is connect with the control device signal, and first noncontacting proximity sensor often detects the primary first detection mark First pulse signal of will structure output, the drive roll detection signal includes first pulse signal；And/or

Second testing agency includes the second inspection being set on the driven voller to rotate synchronously with the driven voller Sign structure and the second noncontacting proximity sensor for detecting the second detection sign structure are surveyed, described second is contactless Sensor is connect with the control device signal, and second noncontacting proximity sensor often detects the primary second detection mark Second pulse signal of will structure output, the driven voller detection signal includes second pulse signal.

In the belt conveyor of some embodiments,

The first detection sign structure includes the first screw being arranged on the drive roll, the first pin, first convex It rises, the first groove or the first magnet；First noncontacting proximity sensor includes the first inductive detector, first capacitor detector Or first photoelectric detector；And/or

The second detection sign structure includes the second screw being arranged on the driven voller, the second pin, second convex It rises, the second groove or the second magnet；Second noncontacting proximity sensor includes the second inductive detector, the second capacitance detector Or second photoelectric detector.

In the belt conveyor of some embodiments, the belt skidding detecting device further includes warning device, described Warning device is connect with the control device signal, and the control device is arranged to detect signal control according to the belt slippage It makes the warning device and issues alarm signal.

In the belt conveyor of some embodiments, the warning device includes phonation unit, luminescence unit and vibration At least one unit.

In the belt conveyor of some embodiments,

The drive roll turn signal includes the first pulse signal for representing the rotation period of the drive roll；It is described driven Roller turn signal includes the second pulse signal for representing the rotation period of the driven voller；

The control device is arranged to calculate the number of pulses of first pulse signal and second pulse signal Difference, when the number of pulses difference reaches a predetermined pulse quantity difference, the control device judges the belt slippage and forms institute State belt slippage detection signal.

In the belt conveyor of some embodiments, it is poor that the control device is arranged to calculate the number of pulses When, it is every to receive primary first pulse signal then the first numerical value of the number of pulses difference increase, every reception primary described second Then the number of pulses difference reduces second value to pulse signal, wherein the ratio of first numerical value and the second value with The drive roll is equal with the diameter ratio of the driven voller.

In the belt conveyor of some embodiments, the control device is arranged to the inspection of belt skidding detecting device When the survey period reaches a default detection cycle, the number of pulses difference is reset.

The application second aspect provides a kind of belt slippage detection method of belt conveyor, comprising:

The rotation information of the drive roll of the belt conveyor is detected to form drive roll turn signal；

The rotation information of the driven voller of the belt conveyor is detected to form driven voller turn signal；With

Signal is detected according to the drive roll and driven voller detection signal judges the belt of the belt conveyor Whether skid, forms belt slippage when judging the belt slippage and detect signal.

In the belt slippage detection method of some embodiments,

It is set on the drive roll by the detection of one first noncontacting proximity sensor to be rotated synchronously with the drive roll The first detection sign structure, first noncontacting proximity sensor often detects the primary first detection sign structure output First pulse signal, the drive roll detection signal includes first pulse signal；And/or

It is set on the driven voller by the detection of one second noncontacting proximity sensor to be rotated synchronously with the driven voller The second detection sign structure, second noncontacting proximity sensor often detects the primary second detection sign structure output Second pulse signal, the driven voller detection signal includes second pulse signal.

It further include detecting signal according to the belt slippage to issue report in the belt slippage detection method of some embodiments Alert signal.

In the belt slippage detection method of some embodiments,

The drive roll turn signal includes the first pulse signal for representing the rotation period of the drive roll；

The driven voller turn signal includes the second pulse signal for representing the driven voller rotation period；

Forming the belt slippage detection signal includes calculating first pulse signal and second pulse signal Number of pulses is poor, when the number of pulses difference reaches a predetermined pulse quantity difference, judges the belt slippage and forms the skin Band, which skids, detects signal.

Belt slippage detection method according to claim 12, which is characterized in that when calculating the number of pulses difference, It is every to receive primary first pulse signal then the first numerical value of the number of pulses difference increase, every primary second pulse of reception Number of pulses difference described in signal reduces second value, wherein the ratio and the master of first numerical value and the second value Dynamic roller is equal with the diameter ratio of the driven voller.

In the belt slippage detection method of some embodiments, the detection cycle of the belt skidding detecting device reaches one When default detection cycle, the number of pulses difference is reset.

Based on belt conveyor provided by the present application, the sliding detection device of belt passes through detection drive roll and driven voller Rotation information obtains belt slippage detection information using the judgment mode that monitoring point at drive roll and driven voller two is voluntarily compared, The slipping phenomenon of belt can be effectively detected, detection is timely rapidly.

Compared with the relevant technologies, since detection position is by belt non-working surface, drive roll and driven voller have been arrived in change, for Some scripts are inconvenient to install the occasion of detection wheel, can more easily install the belt skidding detecting device of the application.

In addition, in the Belt Conveying equipment of the application, since belt skidding detecting device uses drive roll and driven voller The judgment mode that monitoring point is voluntarily compared at two, for belt conveyor start and stop, speed change, the feelings for replacing belt conveyor Shape, can preferably be adapted to, and not need modification parameter generally.

The belt slippage detection method of the application is respectively provided with similar advantage with corresponding Belt Conveying equipment.

By the detailed description referring to the drawings to the exemplary embodiment of the application, other features and its Advantage will become apparent.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:

Fig. 1 is the structural schematic diagram of the belt conveyor with belt skidding detecting device of the relevant technologies.

Fig. 2 is the structural schematic diagram of the belt conveyor with belt skidding detecting device of the embodiment of the present application.

Specific embodiment

Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Below Description only actually at least one exemplary embodiment be it is illustrative, never as to the application and its application or making Any restrictions.Based on the embodiment in the application, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, shall fall in the protection scope of this application.

Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments Up to the unlimited scope of the present application processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached It does not need that it is further discussed in figure.

In the description of the present application, it is to be understood that limit components using the words such as " first ", " second ", only It is merely for convenience of distinguishing corresponding components, there is no Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore not It can be interpreted as the limitation to the application protection scope.

Fig. 2 is the structural schematic diagram of the belt conveyor with belt skidding detecting device of the embodiment of the present application.

As shown in Fig. 2, embodiment of the present disclosure belt conveyor includes drive roll 20, driven voller 30, is set in drive roll 20 and the belt 40 on driven voller 30 and the belt skidding detecting device that whether skids of detection belt 40.

Belt skidding detecting device includes the first testing agency 50, the second testing agency 60 and control device 70.First inspection It surveys mechanism 50 to be equipped with drive roll 20, for detecting the rotation information of drive roll 20 to form drive roll turn signal.The Two testing agencies 60 are equipped with driven voller 30, for detecting the rotation information of driven voller 30 to form driven voller rotation letter Number.Control device 70 is connect with the first testing agency 50 and 60 signal of the second testing agency, and control device 70 is arranged to receive Drive roll detects signal and driven voller detects signal, and judges belt 40 according to drive roll detection signal and driven voller detection signal Whether skid, forms belt slippage detection signal when judging that belt 40 skids.

In the belt conveyor of the embodiment of the present disclosure, the sliding detection device of belt passes through detection drive roll 20 and driven voller 30 rotation information obtains belt slippage inspection using the judgment mode that monitoring point at drive roll 20 and 30 liang of driven voller is voluntarily compared Measurement information, can effectively detect the slipping phenomenon of belt 40, and detection is timely rapidly.

Compared with the relevant technologies, since detection position is by belt non-working surface, drive roll 20 and driven voller 30 have been arrived in change, Some scripts are inconvenient to install with the occasion of detection wheel, the belt slippage inspection of the embodiment of the present application can be more easily installed Survey device.

In addition, in the Belt Conveying equipment of the embodiment of the present application, since belt skidding detecting device uses drive roll 20 With 30 liang of driven voller at the judgment mode that voluntarily compares of monitoring point, for belt conveyor start and stop, speed change, replacement Belt Conveying The situation of device, can preferably be adapted to, and not need modification parameter generally.

As shown in Fig. 2, Belt Conveying equipment includes motor 10 in the present embodiment, motor 10 and drive roll 20 are drivingly connected, To drive drive roll 20 to rotate.

As shown in Fig. 2, the first testing agency 50 includes being set to drive roll 20 in some embodiment belt conveyors On with drive roll 20 rotate synchronously first detection sign structure 52 and for detect first detect sign structure 52 first Noncontacting proximity sensor 51.First noncontacting proximity sensor 51 is connect with 70 signal of control device.First noncontacting proximity sensor 51 often detect that one time first detection sign structure 52 exports first pulse signal, and it includes the first arteries and veins that drive roll, which detects signal, Rush signal.Second testing agency 60 includes the second detection sign structure being set on driven voller 30 to rotate synchronously with driven voller 62 and for detect second detection sign structure 62 the second noncontacting proximity sensor 61.Second noncontacting proximity sensor 61 and control 70 signal of device connection processed.Second noncontacting proximity sensor 61 often detects one time second detection sign structure 62 output one time the Two pulse signals, it includes the second pulse signal that driven voller, which detects signal,.

The belt conveyor of the embodiment of the present disclosure, since the sliding detection device of belt uses non-contact detection, operation It can be reliable, it is not easy to be influenced by live dust, be capable of the stable operation of last longer.

As shown in Fig. 2, the first detection sign structure 52 is set to drive roll in the belt conveyor of some embodiments The side of 20 roll body.In embodiment (not shown), as long as installation and testing conditions allow, the first detection sign structure 52 It can be set in the end face of the roll body of drive roll 20；Alternatively, the first detection sign structure 52 can also be set to drive roll 20 The end face or side of shaft.Similarly, as shown in Fig. 2, in the belt conveyor of some embodiments, the second detection mark knot Structure 62 is set to the side of the roll body of driven voller 30.In embodiment (not shown), as long as installation and testing conditions allow, second Detection sign structure 62 also can be set in the end face of the roll body of driven voller 30；Alternatively, the first detection sign structure 62 can be with It is set to the end face or side of the shaft of driven voller 30.

As shown in Fig. 2, the first detection sign structure 52 includes the first screw being arranged on drive roll 20.(not shown) In embodiment, the first inspection sign structure 52 or the first pin being set on drive roll 20, the first protrusion, the first groove Or first magnet etc. can be as the element or structure of detection sign structure.

First noncontacting proximity sensor 51 for example may include the first inductive detector, first capacitor detector or the first light Photodetector.

Second detection sign structure 62 includes the second screw being arranged on driven voller 30.In embodiment (not shown), First inspection sign structure 52 or the second pin being set on drive roll 20, the second protrusion, the second groove or the second magnetic Iron etc. can be as the element or structure of detection sign structure.

Second noncontacting proximity sensor 52 for example may include the second inductive detector, the second capacitance detector or the second light Photodetector.

As shown in Fig. 2, belt skidding detecting device further includes warning device 80.Warning device 80 and 70 signal of control device Connection.Control device 70 is arranged to detect the signal control sending alarm signal of warning device 80 according to belt slippage.

As shown in Fig. 2, warning device 80 includes phonation unit 81 and shines single in some embodiment belt conveyors Member 82.In embodiment (not shown), warning device may include at least one phonation unit, luminescence unit and vibration unit.

In the embodiment shown in Figure 2, drive roll turn signal includes the first arteries and veins for representing the rotation period of drive roll 20 Rush signal；Driven voller turn signal includes the second pulse signal for representing the rotation period of driven voller 30；Control device 70 is set The number of pulses for being set to the first pulse signal of calculating and the second pulse signal is poor.It is poor that number of pulses difference reaches a predetermined pulse quantity When, control device judges belt slippage and forms belt slippage detection signal.

In some embodiment belt conveyors, when control device 70 is arranged to calculate number of pulses difference, every reception Then number of pulses difference increases the first numerical value, second pulse signal of every reception then number of pulses subtractive to first pulse signal Few second value.Wherein, the first numerical value is equal with the diameter ratio of driven voller 30 with the ratio of second value with drive roll 20.

For example, control device receives 61 two sensors of the first noncontacting proximity sensor 51 and the second noncontacting proximity sensor Two pulse signals of the first pulse signal and the second pulse signal transmitted, and it is poor to calculate number of pulses.Under normal conditions, actively Roller 20 is identical as 30 diameter of driven voller, at this point, theoretically the period of two pulse signals answer it is almost the same.Control device can make With forward-backward counter, such as: the first noncontacting proximity sensor 51 issues the first pulse signal every time, and counter adds 1, and second non-connects Touch sensor 51 issues the second pulse signal every time, and counter subtracts 1, then the count value of counter is that number of pulses is poor, when It is poor that count value reaches a predetermined pulse quantity, such as 5, issues belt slippage and detects signal, or directly triggering warning device 80.

For another example for drive roll 20 and the inconsistent situation of 30 diameter of driven voller, can according to the diameter ratio of the two, The predetermined pulse quantity modified the quantity of counter plus-minus and issue belt slippage detection signal is poor.Such as drive roll 20 and driven voller 30 diameter ratios are 5:3.Then the first noncontacting proximity sensor 51 issues the first pulse signal every time, and counter adds 5 and (corresponds to the One numerical value), the second noncontacting proximity sensor 51 issues the second pulse signal every time, and counter subtracts 3 (corresponding to second value), meter The count value of number devices is that number of pulses is poor, when to reach a predetermined pulse quantity poor for count value, such as 52, issue belt slippage inspection Signal is surveyed, or directly triggers warning device 80.

Wherein the first numerical value above-mentioned, second value and predetermined pulse quantity difference can be according to the knots of belt conveyor The actual demands such as structure and the degree for allowing belt slippage are configured, and are not limited to the numerical value that front enumerates.

In the belt conveyor of some embodiments, control device is arranged to the detection week of belt skidding detecting device When phase reaches a default detection cycle, number of pulses difference is reset.The setting, can be with for allowing belt to have the case where a little skidding Count value is emptied in a certain period of time, in case cumulative errors cause false alarm.Default detection cycle for example can be 30 seconds, 50 Second, 60 seconds, 120 seconds etc. can determine according to factors such as the degree for allowing belt slippage.

In the belt conveyor of some embodiments, control device 70 described above can be for for executing this Shen Please described function general processor, programmable logic controller (PLC) Programmable Logic Controller, referred to as: PLC, digital signal processor Digital Signal Processor, referred to as: DSP, specific integrated circuit Application Specific Integrated Circuit, referred to as: ASIC, field programmable gate array Field-Programmable Gate Array, referred to as: FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components or It is any appropriately combined by person.

The embodiment of the present disclosure also provides a kind of belt slippage detection method of belt conveyor, comprising: detection belt is defeated Send the rotation information of the drive roll 20 of device to form drive roll turn signal；Detect turning for the driven voller 30 of belt conveyor Information is moved to form driven voller turn signal；Signal is detected according to drive roll and driven voller detection signal judges belt conveyor Belt 40 whether skid, judge belt 40 skid when formed belt slippage detection signal.

In the belt slippage detection method of some embodiments, it is set to by the detection of one first noncontacting proximity sensor 51 The first detection sign structure 52 on drive roll 20 to be rotated synchronously with drive roll 20, the every detection of the first noncontacting proximity sensor 51 First pulse signal is exported to one time first detection sign structure 52, it includes the first pulse signal that drive roll, which detects signal,； Second detection with driven voller 30 to rotate synchronously is set on driven voller 30 by the detection of one second noncontacting proximity sensor 61 Sign structure 62, the second noncontacting proximity sensor 61 often detect that one time second detection sign structure 62 exports second pulse Signal, it includes the second pulse signal that driven voller, which detects signal,.

It further include detecting signal according to belt slippage to issue alarm signal in the belt slippage detection method of some embodiments Number.

In the belt slippage detection method of some embodiments, drive roll turn signal includes the rotation for representing drive roll 20 First pulse signal in period；Driven voller turn signal includes the second pulse signal for representing 30 rotation period of driven voller；It is formed Belt slippage detection signal include calculate the first pulse signal and the second pulse signal number of pulses it is poor, number of pulses difference reaches When one predetermined pulse quantity difference, judges belt slippage and form belt slippage detection signal.

In the belt slippage detection method of some embodiments, when calculating number of pulses difference, first pulse of every reception Then number of pulses difference increases by the first numerical value to signal, every to receive the second pulse signal number of pulses difference reduction second value, In, the first numerical value is equal with the diameter ratio of driven voller 30 with the ratio of second value with drive roll 20.

In the belt slippage detection method of some embodiments, it is default that the detection cycle of belt skidding detecting device reaches one When detection cycle, number of pulses difference is reset.

The belt slippage detection method of the application above embodiments is respectively provided with similar with corresponding Belt Conveying equipment Advantage.

Finally it should be noted that: above embodiments are only to illustrate the technical solution of the application rather than its limitations；To the greatest extent Pipe is described in detail the application referring to preferred embodiment, it should be understood by those ordinary skilled in the art that: still It can modify to the specific embodiment of the application or some technical features can be equivalently replaced, should all cover In the claimed technical proposal scope of the application.