CN108177945A - A kind of on-line detecting system and method for carrier roller of belt conveyer - Google Patents
A kind of on-line detecting system and method for carrier roller of belt conveyer Download PDFInfo
- Publication number
- CN108177945A CN108177945A CN201711291874.7A CN201711291874A CN108177945A CN 108177945 A CN108177945 A CN 108177945A CN 201711291874 A CN201711291874 A CN 201711291874A CN 108177945 A CN108177945 A CN 108177945A
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- CN
- China
- Prior art keywords
- detection unit
- thermal imaging
- roller
- rail plate
- belt
- Prior art date
Links
- 239000000969 carriers Substances 0.000 title claims abstract description 24
- 238000001931 thermography Methods 0.000 claims abstract description 69
- 238000001514 detection method Methods 0.000 claims description 43
- 238000007689 inspection Methods 0.000 claims description 13
- 238000010998 test method Methods 0.000 claims 2
- 241001081830 Degeneriaceae Species 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagrams Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering processes Methods 0.000 description 2
- 206010017389 Frotteurism Diseases 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000007921 sprays Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors
- B65G39/02—Adaptations of individual rollers and supports therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/02—Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0266—Control or detection relating to the load carrier(s)
- B65G2203/0275—Damage on the load carrier
Abstract
The invention discloses a kind of on-line detecting systems and method for carrier roller of belt conveyer, system includes thermal imaging detection unit, detection unit rail plate, detection unit motion and control unit, the thermal imaging detection unit is mounted on detection unit rail plate, for detecting the operating condition of carrying roller；The detection unit motion is mounted in detection unit rail plate, and is connected with thermal imaging detection unit, for thermal imaging detection unit to be driven to be moved back and forth on detection unit rail plate；The detection unit rail plate is mounted on ribbon conveyer, and the parallel belt with ribbon conveyer is set, for thermal imaging detection unit to be guided to move back and forth；The thermal imaging detection unit, detection unit motion are connected respectively with control unit.It is the configuration of the present invention is simple, easy to operate, and the detection of applicable various carrying rollers, it has a good application prospect.
Description
Technical field
The present invention relates to a kind of on-line detecting systems and method for carrier roller of belt conveyer, belong to mechanical equipment detection
Technical field.
Background technology
Carrying roller is the important component on ribbon conveyer, and not only type is more, but also quantity is big, and it is defeated that cost probably accounts for belt
The 35% of machine totle drilling cost is sent, more bears more than 70% working resistance.Therefore, it is particularly important to the detection of carrying roller, carrying roller operating
The detection of situation is directly related to the Frotteurism of conveyer belt and carrying roller, defeated caused by the service life and carrying roller failure to conveyer belt
It send and plays key effect on fire.
However, in the prior art to the detection method and device of carrying roller, relatively complicated there are structure, operation is not square
Just, and its applicability is generally limited, and the check cost present in by the way of the artificial detection is high, time-consuming to take
Therefore how the problems such as power, inefficiency and poor safety, provides a kind of simple in structure, easy to operate and applicable various
The detection method and device of carrying roller, into those skilled in the art it is urgently to be resolved hurrily the technical issues of.
Invention content
The invention aims to overcome the shortcomings of present technology to present in the detection method and device of carrying roller.The present invention
The on-line detecting system and method for carrier roller of belt conveyer, by the improvement to belt conveyor, realize carrying roller mistake
The on-line checking of effect, realize caused by being failed due to conveyer carrying roller conveyer belt non-working surface or working face be seriously worn and
The detection of serious accident caused by conveyer belt catches fire etc. improves the reliability that ribbon conveyer uses, simple in structure, behaviour
Facilitate, and the detection of applicable various carrying rollers, have a good application prospect.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of on-line detecting system for carrier roller of belt conveyer, including thermal imaging detection unit, detection unit rail plate,
Detection unit motion and control unit,
The thermal imaging detection unit is mounted on detection unit rail plate, for detecting the operating condition of carrying roller；
The detection unit motion is mounted in detection unit rail plate, and is connected with thermal imaging detection unit, is used
It is moved back and forth on detection unit rail plate in driving thermal imaging detection unit；
The detection unit rail plate is mounted on ribbon conveyer, and the parallel belt with ribbon conveyer is set, and is used for
Thermal imaging detection unit is guided to move back and forth；
The thermal imaging detection unit, detection unit motion are connected respectively with control unit, and described control unit is used for
Detection unit motion driving thermal imaging detection unit is controlled to be run along detection unit rail plate, and according to the heat of reception
Image checking unit detects the temperature value of carrying roller operating condition, and judges whether carrying roller operating status is normal.
A kind of aforementioned on-line detecting system for carrier roller of belt conveyer, the thermal imaging detection unit are thermal imaging
Sensor or temperature sensor are connected on detection unit rail plate, and with detection unit motion, control unit
It connects.
A kind of aforementioned on-line detecting system for carrier roller of belt conveyer, the detection unit rail plate are mounted on
In rack on the outside of the belt working face of ribbon conveyer and backhaul working face, parallel belt working face with ribbon conveyer or
Person's backhaul working face, and the top of the belt working face positioned at ribbon conveyer.
A kind of aforementioned on-line detecting system for carrier roller of belt conveyer, the detection unit rail plate are mounted on
In rack between the belt non-working surface of ribbon conveyer and backhaul non-working surface, the parallel and ribbon conveyer non-work of belt
Make face and backhaul non-working surface, and positioned at belt non-working surface, the middle part of backhaul non-working surface.
A kind of aforementioned on-line detecting system for carrier roller of belt conveyer, two of the detection unit rail plate
End is respectively and fixedly provided with travel switch, and the travel switch is connected with control unit.
A kind of online test method for carrier roller of belt conveyer includes the following steps,
Step（A）, by control unit be configured ribbon conveyer carrying roller normal operating temperature T0,
Carrying roller failure running temperature T1, carrying roller fail and conveyer belt friction is caught fire critical-temperature T2, the fortune of thermal imaging detection unit
Dynamic speed V；
Step（B）, in ribbon conveyer during the work time, control unit control detection unit motion driving thermal imaging inspection
It surveys unit back and forth to make an inspection tour with movement velocity V on detection unit rail plate, if thermal imaging detection unit detects the fortune of carrying roller
When trip temperature is more than T0 and is less than T1, the automatic thermal imaging detection unit that records is from the endpoint of detection unit rail plate to the temperature
The run time S of present position, and according to the movement velocity V of thermal imaging detection unit, determine that carrying roller invalid position at this time is
V*S, and start prior-warning device；
Step（C）, in ribbon conveyer during the work time, control unit control detection unit motion driving thermal imaging inspection
It surveys unit back and forth to make an inspection tour with movement velocity V on detection unit rail plate, when thermal imaging detection unit detects defeated carrying roller
Running temperature is more than or equal to T1 and during less than T2, it is automatic record thermal imaging detection unit from the endpoint of detection unit rail plate to
The run time S of the temperature present position, and according to the movement velocity V of thermal imaging detection unit, determine carrying roller failure at this time
Position is V*S, and starts prior-warning device, and sends short message to the leader that takes personal charge of the shift by control unit；
Step（D）, in ribbon conveyer during the work time, control unit control detection unit motion driving thermal imaging inspection
It surveys unit back and forth to make an inspection tour with movement velocity V on detection unit rail plate, when thermal imaging detection unit detects defeated carrying roller
When running temperature is more than or equal to T2, ribbon conveyer is controlled to shut down by control unit, and start fire extinguishing switch, carried out spray and go out
Fire.
The online test method of carrier roller of belt conveyer is previously described for, the carrying roller normal operating temperature T0 is 40 DEG C,
Between carrying roller failure running temperature T1 is 60 DEG C -300 DEG C, the carrying roller failure and conveyer belt friction are caught fire critical-temperature T2
It is 325 DEG C.
The beneficial effects of the invention are as follows：The on-line detecting system and method for carrier roller of belt conveyer of the present invention leads to
The improvement to belt conveyor is crossed, realizes the on-line checking of carrying roller failure, is realized caused by conveyer carrying roller fails
The detection of serious accident, improves caused by conveyer belt non-working surface or working face are seriously worn and conveyer belt catches fire etc.
The reliability that ribbon conveyer uses, it is simple in structure, easy to operate, and the detection of applicable various carrying rollers, have good
Application prospect.
Description of the drawings
Fig. 1 is the structure diagram of the on-line detecting system for carrier roller of belt conveyer of the present invention；
Fig. 2 is the structure diagram of the first embodiment of the detection unit rail plate installation site of the present invention；
Fig. 3 is the structure diagram of the second embodiment of the detection unit rail plate installation site of the present invention.
The meaning marked in attached drawing is as follows：
1：Thermal imaging detection unit；2：Detection unit rail plate；3：Detection unit motion；4：Control unit；5：Stroke
Switch.
Specific embodiment
Below in conjunction with Figure of description, the present invention will be further described.Following embodiment is only used for clearly
Illustrate technical scheme of the present invention, and be not intended to limit the protection scope of the present invention and limit the scope of the invention.
As shown in Figures 1 and 2, the on-line detecting system for carrier roller of belt conveyer of the invention is examined including thermal imaging
Unit 1, detection unit rail plate 2, detection unit motion 3 and control unit 4 are surveyed,
The thermal imaging detection unit 1 is mounted on detection unit rail plate 2, for detecting the operating condition of carrying roller；
The detection unit motion 3 is mounted in detection unit rail plate 2, and is connected with thermal imaging detection unit 1,
For thermal imaging detection unit 1 to be driven to be moved back and forth on detection unit rail plate 2；
The detection unit rail plate 2 is mounted on ribbon conveyer, and the parallel belt with ribbon conveyer is set, and is used for
Guiding thermal imaging detection unit 1 moves back and forth；
The thermal imaging detection unit 1, detection unit motion 3 are connected respectively with control unit 4, described control unit 4
For controlling detection unit motion 3 that thermal imaging detection unit 1 is driven to be run along detection unit rail plate 2, and according to
The thermal imaging detection unit 1 of reception detects the temperature value of carrying roller operating condition, and judges whether carrying roller operating status is normal.
Preferably, the thermal imaging detection unit 1 is thermal imaging sensor or temperature sensor, is slided mounted on detection unit
On dynamic guide rail 2, and it is connected with detection unit motion 3, control unit 4.
As shown in Fig. 2, the first embodiment of 2 installation site of detection unit rail plate, mounted on ribbon conveyer
Belt working face and backhaul working face on the outside of rack on, parallel belt working face or backhaul with ribbon conveyer works
Face, and the top of the belt working face positioned at ribbon conveyer, realize the detection of the belt working face of ribbon conveyer.
As shown in figure 3, the second embodiment of 2 installation site of detection unit rail plate, the detection unit is slided
Guide rail 2 is mounted in the rack between the belt non-working surface of ribbon conveyer and backhaul non-working surface, parallel and belt conveying
The belt non-working surface of machine and backhaul non-working surface, and positioned at belt non-working surface, the middle part of backhaul non-working surface, realize band
The detection of the belt non-working surface of formula conveyer.
Two kinds of mounting means of the detection unit rail plate 2 of the present invention, may all be installed as needed, so as to
Two groups of thermal imaging detection units 1 are installed, respectively to the belt working face of ribbon conveyer and belt non-working surface, are all examined
It surveys.
Two ends of the detection unit rail plate 2 are respectively and fixedly provided with travel switch 5, the travel switch 5 and control
Unit 4 is connected, and for limiting the movement position of thermal imaging detection unit 1, and can record thermal imaging detection unit 1 and reach inspection
The position that 2 endpoint of unit rail plate goes out is surveyed, so as to drive carrying roller invalid position.
The online test method for carrier roller of belt conveyer of the present invention, includes the following steps,
Step（A）, by control unit 4 be configured ribbon conveyer carrying roller normal operating temperature T0,
Carrying roller failure running temperature T1, carrying roller fail and conveyer belt friction is caught fire critical-temperature T2, the fortune of thermal imaging detection unit
Dynamic speed V；
Step（B）, in ribbon conveyer during the work time, control unit 4 controls detection unit motion 3 to drive thermal imaging
Detection unit 1 is back and forth maked an inspection tour on detection unit rail plate 2 with movement velocity V, if thermal imaging detection unit 1 detects carrying roller
Running temperature when being more than T0, the automatic thermal imaging detection unit 1 that records is from the endpoint of detection unit rail plate 2 to the temperature institute
Locate the run time S1 of position, and according to the movement velocity V of thermal imaging detection unit, determine that carrying roller invalid position at this time is V*
S1, and start prior-warning device；
Step（C）, in ribbon conveyer during the work time, control unit 4 controls detection unit motion 3 to drive thermal imaging
Detection unit 1 is back and forth maked an inspection tour on detection unit rail plate 2 with movement velocity V, when thermal imaging detection unit 1 detects defeated support
When the running temperature of roller is more than or equal to T1 and is less than T2, the automatic thermal imaging detection unit 1 that records is from detection unit rail plate 2
Endpoint and according to the movement velocity V of thermal imaging detection unit, determines support at this time to the run time S2 of the temperature present position
Roller invalid position is V*S2, and starts prior-warning device, and passes through control unit 4 and send short message to the leader that takes personal charge of the shift；
Step（D）, in ribbon conveyer during the work time, control unit 4 controls detection unit motion 3 to drive thermal imaging
Detection unit 1 is back and forth maked an inspection tour on detection unit rail plate 2 with movement velocity V, when thermal imaging detection unit 1 detects defeated support
When the running temperature of roller is more than or equal to T2, ribbon conveyer is controlled to shut down by control unit 4, and start fire extinguishing switch, carried out
Sprinkling fire-distinguishing.
Preferably, the carrying roller normal operating temperature T0 is 40 DEG C, and the carrying roller failure running temperature T1 is 60 DEG C -300
Between DEG C, the carrying roller fails and conveyer belt friction is caught fire, and critical-temperature T2 is 325 DEG C.
To sum up shown, the of the invention on-line detecting system and method for carrier roller of belt conveyer, by being passed to belt
The improvement of defeated machine realizes the on-line checking of carrying roller failure, realizes the non-work of conveyer belt caused by failing due to conveyer carrying roller
Make face or working face is seriously worn and the detection of serious accident caused by conveyer belt catches fire etc., improve ribbon conveyer
The reliability used, it is simple in structure, easy to operate, and the detection of applicable various carrying rollers, it has a good application prospect.
Basic principle, the main features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe the originals of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (7)
1. a kind of on-line detecting system for carrier roller of belt conveyer, it is characterised in that：Including thermal imaging detection unit（1）、
Detection unit rail plate（2）, detection unit motion（3）And control unit（4）,
The thermal imaging detection unit（1）Mounted on detection unit rail plate（2）On, for detecting the operating condition of carrying roller；
The detection unit motion（3）Mounted on detection unit rail plate（2）It is interior, and with thermal imaging detection unit（1）
It is connected, for driving thermal imaging detection unit（1）In detection unit rail plate（2）Upper reciprocating motion；
The detection unit rail plate（2）On ribbon conveyer, and the parallel belt with ribbon conveyer is set, and is used
In guiding thermal imaging detection unit（1）It moves back and forth；
The thermal imaging detection unit（1）, detection unit motion（3）Respectively with control unit（4）It is connected, the control
Unit（4）For controlling detection unit motion（3）Drive thermal imaging detection unit（1）Along detection unit rail plate
（2）Operation, and according to the thermal imaging detection unit of reception（1）The temperature value of detected carrying roller operating condition, and judge that carrying roller is transported
Whether row state is normal.
2. a kind of on-line detecting system for carrier roller of belt conveyer according to claim 1, it is characterised in that：It is described
Thermal imaging detection unit（1）For thermal imaging sensor or temperature sensor, mounted on detection unit rail plate（2）On, and with
Detection unit motion（3）, control unit（4）It is connected.
3. a kind of on-line detecting system for carrier roller of belt conveyer according to claim 1, it is characterised in that：It is described
Detection unit rail plate（2）It is parallel in the rack on the outside of the belt working face of ribbon conveyer and backhaul working face
With the belt working face of ribbon conveyer or backhaul working face, and positioned at ribbon conveyer belt working face top.
4. a kind of on-line detecting system for carrier roller of belt conveyer according to claim 1, it is characterised in that：It is described
Detection unit rail plate（2）In rack between the belt non-working surface of ribbon conveyer and backhaul non-working surface,
Parallel and the belt non-working surface of ribbon conveyer and backhaul non-working surface, and positioned at belt non-working surface, backhaul non-working surface
Middle part.
5. a kind of on-line detecting system for carrier roller of belt conveyer according to claim 1, it is characterised in that：It is described
Detection unit rail plate（2）Two ends be respectively and fixedly provided with travel switch（5）, the travel switch（5）With control unit（4）
It is connected.
6. a kind of online test method for carrier roller of belt conveyer, it is characterised in that：Include the following steps,
Step（A）, pass through control unit（4）The carrying roller normal operating temperature T0 of configuration ribbon conveyer,
Carrying roller failure running temperature T1, carrying roller fail and conveyer belt friction is caught fire critical-temperature T2, the fortune of thermal imaging detection unit
Dynamic speed V；
Step（B）, in ribbon conveyer during the work time, control unit（4）Control detection unit motion（3）Driving heat
Image checking unit（1）In detection unit rail plate（2）On back and forth maked an inspection tour with movement velocity V, if thermal imaging detection unit（1）
It is automatic to record thermal imaging detection unit when detecting that the running temperature of carrying roller is more than T0（1）From detection unit rail plate（2）'s
Endpoint and according to the movement velocity V of thermal imaging detection unit, determines support at this time to the run time S1 of the temperature present position
Roller invalid position is V*S1, and starts prior-warning device；
Step（C）, in ribbon conveyer during the work time, control unit（4）Control detection unit motion（3）Driving heat
Image checking unit（1）In detection unit rail plate（2）On back and forth maked an inspection tour with movement velocity V, when thermal imaging detection unit（1）
It is automatic to record thermal imaging detection unit when detecting that the running temperature of defeated carrying roller is more than or equal to T1 and is less than T2（1）It is single from detection
First rail plate（2）Endpoint to the temperature present position run time S2, and according to the movement of thermal imaging detection unit speed
V is spent, determines that carrying roller invalid position at this time is V*S2, and start prior-warning device, and pass through control unit（4）Short message is sent to band
Class leader；
Step（D）, in ribbon conveyer during the work time, control unit（4）Control detection unit motion（3）Driving heat
Image checking unit（1）In detection unit rail plate（2）On back and forth maked an inspection tour with movement velocity V, when thermal imaging detection unit（1）
When detecting that the running temperature of defeated carrying roller is more than or equal to T2, pass through control unit（4）Ribbon conveyer is controlled to shut down, and starts and goes out
Fire switch, carries out sprinkling fire-distinguishing.
7. the online test method according to claim 6 for carrier roller of belt conveyer, it is characterised in that：The carrying roller
Normal operating temperature T0 is 40 DEG C, between carrying roller failure running temperature T1 is 60 DEG C -300 DEG C, the carrying roller failure with it is defeated
Band friction is sent to catch fire critical-temperature T2 for 325 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711291874.7A CN108177945A (en) | 2018-04-23 | 2018-04-23 | A kind of on-line detecting system and method for carrier roller of belt conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711291874.7A CN108177945A (en) | 2018-04-23 | 2018-04-23 | A kind of on-line detecting system and method for carrier roller of belt conveyer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108177945A true CN108177945A (en) | 2018-06-19 |
Family
ID=62545681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711291874.7A CN108177945A (en) | 2018-04-23 | 2018-04-23 | A kind of on-line detecting system and method for carrier roller of belt conveyer |
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| Country | Link |
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| CN (1) | CN108177945A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202132073U (en) * | 2011-07-08 | 2012-02-01 | 唐山开诚机器人制造有限公司 | Inspecting robot for adhesive tape conveyor in coal mine underground |
| KR101295743B1 (en) * | 2011-08-29 | 2013-08-09 | 현대제철 주식회사 | Sensing device for damage of belt conveyor |
| CN205098937U (en) * | 2015-10-30 | 2016-03-23 | 中信重工开诚智能装备有限公司 | Robot device is patrolled and examined to rail mounted |
| CN105775667A (en) * | 2016-04-29 | 2016-07-20 | 天津华宁电子有限公司 | Patrolling type overheat water spraying protection system based on wireless coverage |
| CN106219193A (en) * | 2016-10-01 | 2016-12-14 | 西安科技大学 | A kind of belt transportation system |
-
2018
- 2018-04-23 CN CN201711291874.7A patent/CN108177945A/en not_active Application Discontinuation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202132073U (en) * | 2011-07-08 | 2012-02-01 | 唐山开诚机器人制造有限公司 | Inspecting robot for adhesive tape conveyor in coal mine underground |
| KR101295743B1 (en) * | 2011-08-29 | 2013-08-09 | 현대제철 주식회사 | Sensing device for damage of belt conveyor |
| CN205098937U (en) * | 2015-10-30 | 2016-03-23 | 中信重工开诚智能装备有限公司 | Robot device is patrolled and examined to rail mounted |
| CN105775667A (en) * | 2016-04-29 | 2016-07-20 | 天津华宁电子有限公司 | Patrolling type overheat water spraying protection system based on wireless coverage |
| CN106219193A (en) * | 2016-10-01 | 2016-12-14 | 西安科技大学 | A kind of belt transportation system |
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Application publication date: 20180619 |