CN114873154A - Belt conveyor conveyer belt tensioning device - Google Patents
Belt conveyor conveyer belt tensioning device Download PDFInfo
- Publication number
- CN114873154A CN114873154A CN202210638949.9A CN202210638949A CN114873154A CN 114873154 A CN114873154 A CN 114873154A CN 202210638949 A CN202210638949 A CN 202210638949A CN 114873154 A CN114873154 A CN 114873154A
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- tension
- power
- rope
- main shaft
- end cover
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- 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
- B65G15/60—Arrangements for supporting or guiding belts, e.g. by fluid jets
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- 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
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/44—Belt or chain tensioning arrangements
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- 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
- B65G39/10—Arrangements of rollers
- B65G39/12—Arrangements of rollers mounted on framework
- B65G39/16—Arrangements of rollers mounted on framework for aligning belts or chains
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- 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)
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- 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
- B65G2203/04—Detection means
- B65G2203/042—Sensors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a belt conveyor belt tensioning device which comprises a base, a permanent magnet variable frequency motor, a planetary speed reducer connected to the permanent magnet variable frequency motor, a gear set connected to the planetary speed reducer, a winding drum connected to one end of the gear set, a brake connected to the winding drum, a first power-off protection device and an electric cabinet. The design device is more reasonable in structural layout, small in occupied space, capable of adapting to various complex installation environments and easy to install and transport.
Description
Technical Field
The invention relates to the field of automatic control of conveyors, in particular to a belt tensioning device of a belt conveyor.
Background
Belt conveyors are widely used in various manufacturing fields and generally include a conveyor belt for conveying a material, a plurality of idlers for rotatably supporting the conveyor belt, and a drive roller for driving the conveyor belt to move. When the load state of the conveyor belt changes or the conveying speed changes, the tension of the conveyor belt also changes. For this purpose, belt conveyors are usually also equipped with a tensioning device to adjust the tension of the conveyor belt to a suitable range. Especially for belt conveyors with large carrying capacity and long carrying distance or telescopic belt conveyors with adjustable length of the conveying belt, the tensioning device is very necessary.
Most of the current tensioners are mechanical, such as weight tensioner, hydraulic tensioner, etc. The heavy hammer tensioning device realizes tensioning by adopting a heavy object hanging mode, has short tensioning stroke and cannot meet the use requirement of a long-distance belt conveyor. In addition, the device can only adjust the tension by increasing or decreasing the suspension, is difficult to operate, occupies large area and is not beneficial to underground installation and popularization. The hydraulic tensioning device utilizes the expansion and contraction of a hydraulic cylinder to adjust the position of one or more rollers, thereby adjusting the tension on the conveyor belt. However, the hydraulic drive is slow and not suitable for tension adjustment of long-distance belt conveyors.
CN209382869U discloses a tensioning device and a belt conveyor with the same, which is composed of a hollow drum, a permanent magnet variable frequency motor, and a speed reducer. Wherein the permanent magnet variable frequency motor and the speed reducer are arranged in the hollow winding drum. This patent has optimized straining device's installation and has arranged, has reduced the volume, but the shortcoming is that speed reducer and motor are installed in the confined reel, are unfavorable for the heat dissipation, and the design of integral type is unfavorable for daily maintenance moreover, and dedicated motor is poor with the speed reducer commonality, does not possess the replaceability.
CN101780878A discloses a full-automatic winch tensioning system, which comprises an electromagnetic braking tensioning winch, an auxiliary tensioning device, a detection system and a tensioning control system. The invention provides a permanent magnet variable frequency motor winch device, which realizes rapid and accurate tension detection and control. However, the electromagnetic brake has the advantages of unreasonable structure, serious space waste, large floor area and no contribution to underground transportation and installation, and the electromagnetic brake provided by the invention has a single installation mode and cannot adapt to an underground complex installation environment.
Disclosure of Invention
In order to solve the technical problem, the invention provides a belt conveyor belt tensioning device which comprises a base, a permanent magnet variable frequency motor, a planetary speed reducer connected to the permanent magnet variable frequency motor, a gear set connected to the planetary speed reducer, a winding drum connected to one end of the gear set, a brake connected to the winding drum, a first power-off protection device and an electric cabinet. The design device is more reasonable in structural layout, small in occupied space, capable of adapting to various complex installation environments and easy to install and transport.
Further, the reel includes main shaft, left web, right web and bobbin skin, the main shaft sets up to logical axle construction, and both ends are connected with reel bearing respectively, the main shaft left end is provided with left shaft shoulder.
Furthermore, flanges are arranged at the left end and the right end of the bobbin skin, a groove is formed in the middle of the bobbin skin and surrounds the bobbin skin, the groove is annular or spiral, a steel wire rope is wound on the bobbin skin, and the steel wire rope is limited in the groove.
Further, the right web plate is arranged on the right side of the main shaft and connected with the gear set, the left web plate is arranged on the right side of a left shaft shoulder of the main shaft, a rope pressing device is arranged on the left web plate and used for pressing the steel wire rope, a circular groove is further formed in the left web plate, and the circular groove corresponds to the right end of the first power-off protection device.
Furthermore, the brake is a dry multi-disc brake and is connected to the left end of the main shaft of the winding drum, a pressure sensor is arranged on the dry multi-disc brake, when the dry multi-disc brake brakes, the force arm of the dry multi-disc brake presses the pressure sensor, and a pressure signal generated by the pressure sensor is transmitted to the electric cabinet.
Furthermore, a second power-off protection device is further arranged inside the dry-type multi-disc brake, and when oil pressure leaks or power is cut off for a long time, braking is achieved.
Further, the first power-off safety protection device comprises an oil cylinder, a piston, a spring, a left end cover and a right end cover, a left piston rod and a right piston rod are arranged at the left end and the right end of the piston respectively, the left piston rod penetrates through the left end cover, and the right piston rod penetrates through the right end cover.
Further, the left end cover is connected with the oil cylinder, a groove is formed in the inner side of the left end cover, the spring is sleeved on the left piston and fixed in the groove, the right end cover is connected with the oil cylinder, an oil port is formed in the right end cover, and a pipe head is arranged on the oil port.
Furthermore, the first power-off safety protection device is used as a safety device, when the dry multi-disc brake fails in braking due to oil pressure leakage or long-time power failure, emergency braking is carried out for stopping, and at the moment, the right piston rod is pushed into the circular groove of the left web plate of the winding drum under the action of the spring to complete braking.
Further, the electric cabinet comprises a tension setting unit and a tension comparing unit, the tension setting unit is used for presetting the tension of the rope, and the tension comparing unit is used for comparing the tension of the rope sensed by the tension sensor with the preset tension of the rope.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the invention adopts the permanent magnet variable frequency motor for driving, the tension signal response is accurate, the variation fluctuation is reduced, and the constant tension is ensured.
2. The invention designs the pressure sensor, can dynamically monitor the tension signal of the belt conveyor, and is matched with the rope end tension sensor to more accurately and rapidly acquire the tension signal of the belt conveyor.
3. The invention designs a dry-type multi-disc brake built-in power-off protection device which is matched with a first power-off safety protection device to form double sets of safety protection, and the brake is stable in parking.
4. The invention has the advantages of compact structural layout, small volume, high space utilization rate and reduced production cost.
5. The invention adopts the through shaft to position the roller, thereby reducing the jumping of the roller, increasing the rope containing amount and prolonging the service life of the roller.
Drawings
The above and other objects and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which like or similar elements are designated by like reference numerals.
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a front view of a first embodiment of the present invention.
Fig. 2 is a top view of the first embodiment of the invention.
Fig. 3 is a top view of the second embodiment of the present invention.
FIG. 4 is a top view of a third embodiment of the present invention.
Fig. 5 is a schematic view of the installation position of the pressure sensor in the present invention.
Fig. 6 is a schematic diagram of a first state of the first power-off safety protection device of the present invention.
Fig. 7 is a second state diagram of the first power-off safety protection device of the present invention.
Fig. 8 is a schematic view of the roll structure of the present invention.
Fig. 9 is a left side view of the roll of the present invention.
The numbers in the figure indicate: 1-a base, 2-a permanent magnet variable frequency motor, 3-a planetary reducer, 4-a gear set, 5-a winding drum, 6-a brake, 7-a first power-off protection device, 8-an electric cabinet, 9-a pressure sensor and 10-a tension sensor;
wherein: the reel 5 includes: 501-main shaft, 502-left web, 503-right web, 504-bobbin skin, 505-bobbin bearing seat, 506-left shaft shoulder and 507-flange; 509 rope pressing device, 510 circular groove; the first power loss protection device 7 includes: 71-oil cylinder, 72-piston, 73-spring, 74-left end cover, 75-right end cover, 721 left piston rod, 722 right piston rod, 741-groove, 751-oil port and 752-pipe head.
Detailed Description
The present invention will be described in further detail with reference to examples. The advantages and features of the present invention will become more apparent as the description proceeds. These examples are illustrative only and do not limit the scope of the present invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications may be made without departing from the spirit and scope of the invention.
Terms such as "comprising" and "comprises" mean that, in addition to having components which are directly and explicitly stated in the description and claims, the solution of the invention does not exclude other components which are not directly or explicitly stated. In the description herein, directional terms such as "upper", "lower", "front", "rear", etc., are used, it being understood that these directional terms are relative terms, which are used for relative positional description and clarification, and that the particular orientation thereof may vary accordingly as the orientation of the tensioner changes.
As shown in fig. 1 and 2, which are schematic diagrams of an embodiment of the present invention, the present invention provides a belt tensioning device for a belt conveyor, including a permanent magnet variable frequency motor 2, a planetary reducer 3 connected to the permanent magnet variable frequency motor 2, a gear set 4 connected to the planetary reducer 3, a winding drum 5 connected to one end of the gear set 4, a brake 6 connected to the winding drum 5, an electric cabinet 8, and a first power-off protection device 7 disposed on a base 1. Permanent magnetism inverter motor 2 chooses for use hollow shaft and the cooperation installation of planetary reducer 3, has optimized the transmission structure between planetary reducer 3 and the reel 5, through gear train 4 conversion transmission moments of torsion, and gear drive compares in other transmission modes, and reliable operation, long service life, the transmission precision is high, and transmission efficiency is high, can alleviate dynamic load under high-speed heavy load, realizes steady transmission. The design device is more reasonable in structural layout, small in occupied space, capable of adapting to various complex installation environments and easy to install and transport.
In this embodiment, as shown in fig. 8 and 9, permanent magnet variable frequency motor 2 is provided with the hollow shaft, the hollow shaft is installed with the cooperation of planetary reducer 3, and reel 5 includes main shaft, left web, right web and bobbin skin, the main shaft sets up to logical axle construction, and both ends are connected with 5 bearing frames of reel respectively, the main shaft left end is provided with left shaft shoulder for fixed to the main shaft, right web is connected with gear train 4, sets up in the left shaft shoulder right side of main shaft, and right web sets up on the right side of main shaft, adopts logical axle location cylinder, reduces the cylinder and beats, and the volume of holding the rope increases, improves the cylinder life-span.
In this embodiment, the left web is provided with a rope pressing device that presses a steel wire rope from one end, and the other end of the steel wire rope is provided on a tension device of the belt conveyor and is mounted with a tension sensor 10. And a circular groove is further formed in the left web, and the inner diameter of the circular groove is matched with the size of a left piston rod of the power-off protection device.
Flanges are arranged at the left end and the right end of the bobbin skin, a groove is arranged in the middle of the bobbin skin and surrounds the bobbin skin, the groove is annular or spiral, and a steel wire rope is wound on the bobbin skin. The technical purpose is as follows: the steel wire rope is orderly wound under the guide of the flanges and the grooves, so that the rope is prevented from being folded, and the working efficiency of the device is improved. The spiral line structure can reduce the steel wire rope overlapping.
In this embodiment, the brake 6 is a dry multi-disc brake 6, and is connected to the left end of the main shaft of the drum 5, as shown in fig. 5, a pressure sensor 9 is provided on the dry multi-disc brake 6, when the dry multi-disc brake 6 brakes, the force arm of the dry multi-disc brake 6 presses the pressure sensor 9, and a pressure signal generated by the pressure sensor 9 is transmitted to the electric cabinet 8. And a second power-off protection device is also arranged in the dry-type multi-disc brake 6 and comprises an oil cylinder, a spring and a piston rod. When oil pressure leaks or power is cut off for a long time, the piston rod is pushed into a braking groove of the hollow shaft of the dry multi-plate brake 6 under the action of the spring to realize braking.
In this implementation, as shown in fig. 6 and 7, first power-off safety arrangement includes hydro-cylinder, piston, spring, left end lid and right-hand member lid, both ends are provided with left piston rod and right piston rod respectively about the piston, left piston rod passes the left end lid, right piston rod passes the right-hand member lid, the left end lid is connected with the hydro-cylinder, and the left end lid inboard is provided with the recess, the spring suit is fixed in the recess on left piston, the right-hand member lid is connected with the hydro-cylinder, is provided with the hydraulic fluid port on the right-hand member lid, has the tube head on the hydraulic fluid port. The first power-off safety protection device is used as a safety device, when oil pressure leakage occurs in the dry multi-disc brake 6 or braking failure caused by long-time power failure occurs, emergency braking parking occurs, and at the moment, the right piston rod is pushed into the circular groove of the left web plate of the winding drum 5 under the action of the spring to complete braking. The technical purpose is as follows: the first power-off safety protection device is used as a safety device, when the dry multi-disc brake 6 is subjected to oil pressure leakage or brake failure caused by long-time power failure, emergency brake stopping is carried out, at the moment, the right piston rod is pushed into the circular groove of the left web plate of the winding drum 5 under the action of the spring, braking is completed, and accidents caused by failure of the dry multi-disc brake 6 and sudden reduction of belt tension are prevented. When the dry-type multi-disc brake 6 normally works, the oil pressure is normal, the piston compresses the spring under the action of the hydraulic oil, and the right piston rod is not in contact with the circular groove of the winding drum 5. Therefore, the first power-off safety protection device and the second power-off protection device built in the upper dry type multi-disc brake 6 form a double-set power-off safety protection device, and the braking reliability is improved. Fig. 6 is a schematic diagram of a first state of the first power-off safety protection device of the present invention, where the first power-off safety protection device is in an inoperative state and no braking occurs at this time, and fig. 7 is a schematic diagram of a second state of the first power-off safety protection device, where the first power-off safety protection device is in an operative state and braking occurs at this time.
In this embodiment, the electric cabinet 8 includes a tension setting unit and a tension comparing unit, the tension setting unit is configured to preset a tension of the rope, and the tension comparing unit compares the tension of the rope sensed by the tension sensor 10 with the preset tension of the rope. The technical purpose is as follows: when the induced rope tension is smaller than the preset rope tension, the tension comparison unit controls the permanent magnet variable frequency motor 2 to drive the winding drum 5 to rotate through the frequency converter, so that the rope is tensioned; when the induced rope tension is equal to the preset rope tension, the permanent magnet variable frequency motor 2 stops working; when the induced rope tension is larger than the preset rope tension, the tension comparing unit controls the permanent magnet variable frequency motor 2 through the frequency converter to drive the winding drum 5 to rotate, so that the rope tension is within the preset tension range.
In this embodiment, the other end of the steel wire rope is provided with a tension sensor 10 for detecting the tension of the steel wire rope, and the tension sensor 10 detects the tension of the steel wire rope and sends a signal to the electric cabinet 8; the pressure sensor 9 arranged on the lower seat of the dry multi-disc brake 6 detects pressing force transmitted by the dry multi-disc brake 6, namely belt tension, the pressure sensor 9 sends signals to the electric cabinet 8, and when the electric cabinet 8 operates, the permanent magnet variable frequency motor 2 is controlled by the electric cabinet 8 according to the belt tension, the tensioning winch rotates forwards and backwards, and the winding and unwinding of the steel wire rope are controlled. Before the permanent magnet variable frequency motor 2 runs, the electric cabinet 8 sends a signal to open the brake 6 firstly, when the tension force is smaller than a set value, the permanent magnet variable frequency motor 2 rotates in the forward direction to complete rope winding and increase the tension force of the steel wire rope, and when the tension force reaches the set value, the permanent magnet variable frequency motor 2 stops and the brake 6 is braked. When the tension force is larger than a set tension value, the permanent magnet variable frequency motor 2 rotates reversely to complete rope unwinding, and when the tension force is within a set range, the permanent magnet variable frequency motor 2 stops rotating, and the brake 6 is braked.
Fig. 3 is a plan view of the second embodiment of the present invention, which is based on the first embodiment, and as shown in fig. 3, the dry multi-plate brake 6 is installed at the output end of the planetary reducer 3, and its technical purpose is: on the basis of the first embodiment, the same technical purpose is achieved by changing the installation position of the brake 6, the installation mode is more flexible, different space requirements are met, and the installation mode is more diversified.
Fig. 4 is a top view of a third embodiment of the present invention, and the second embodiment is based on the first embodiment and is shown in fig. 4, wherein a gear set 4 is eliminated, and a transmission mode that a speed reducer is directly connected with a winding drum 5 is adopted, and the technical purpose is as follows: the speed reducer is directly connected with the winding drum 5, so that the cost is low, the maintenance cost is low, the reliability and the durability are realized, and the diversified use requirements are met.
The embodiments in the above embodiments can be further combined or replaced, and the embodiments are only used for describing the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various changes and modifications made to the technical solution of the present invention by those skilled in the art without departing from the design idea of the present invention belong to the protection scope of the present invention.
Claims (10)
1. The utility model provides a belt conveyor conveyer belt straining device which characterized in that: including base, permanent-magnet variable frequency motor, connect planetary reducer on permanent-magnet variable frequency motor, connect gear train on planetary reducer, connect the reel in gear train one end, connect stopper, the electric cabinet on the reel and set up the first power-off protection device on the base, permanent-magnet variable frequency motor is provided with the hollow shaft, the hollow shaft is installed with planetary reducer cooperation.
2. The belt tensioner as claimed in claim 1, wherein: the reel comprises a main shaft, a left web, a right web and a bobbin skin, the main shaft is of a through shaft structure, two ends of the main shaft are respectively connected with a reel bearing seat, and a left shaft shoulder is arranged at the left end of the main shaft.
3. The belt tensioner as claimed in claim 2, wherein: flanges are arranged at the left end and the right end of the cylinder skin, a groove is arranged in the middle of the cylinder skin and surrounds the cylinder skin, and the groove is annular or spiral.
4. The belt tensioner as claimed in claim 2, wherein: the right web sets up and is connected with the gear train on the right side of main shaft, left side web sets up in the left shaft shoulder right side of main shaft, is provided with on the web of a left side and presses the rope device for compress tightly wire rope, still be provided with the circular slot on the web of a left side, the circular slot corresponds with first power-off protection device right-hand member.
5. The belt tensioner as claimed in claim 1, wherein: the brake is a dry multi-disc brake and is connected to the left end of the main shaft of the winding drum, a pressure sensor is arranged on the dry multi-disc brake, when the dry multi-disc brake brakes, the force arm of the dry multi-disc brake presses the pressure sensor, and a pressure signal generated by the pressure sensor is transmitted to the electric cabinet.
6. The belt tensioning device of a belt conveyor as claimed in claim 5, wherein: and a second power-off protection device is further arranged in the dry-type multi-disc brake, and when oil pressure leaks or power is cut off for a long time, braking is realized.
7. The belt tensioner as claimed in claim 1, wherein: the first power-off safety protection device comprises an oil cylinder, a piston, a spring, a left end cover and a right end cover, wherein a left piston rod and a right piston rod are arranged at the left end and the right end of the piston respectively, the left piston rod penetrates through the left end cover, and the right piston rod penetrates through the right end cover.
8. The belt tensioner as claimed in claim 7, wherein: the left end cover is connected with the oil cylinder, a groove is formed in the inner side of the left end cover, the spring is sleeved on the left piston and fixed in the groove, the right end cover is connected with the oil cylinder, an oil port is formed in the right end cover, and a pipe head is arranged on the oil port.
9. The belt tensioner as claimed in claim 8, wherein: the first power-off safety protection device is used as a safety device, when a dry multi-disc brake fails to brake due to oil pressure leakage or long-time power failure, emergency braking parking occurs, and at the moment, the right piston rod is pushed into the circular groove of the left web plate of the winding drum under the action of the spring to complete braking.
10. The belt tensioner as claimed in claim 1, wherein: the electric cabinet comprises a tension setting unit and a tension comparing unit, the tension setting unit is used for presetting the tension of the rope, and the tension comparing unit is used for comparing the tension of the rope sensed by the tension sensor with the preset tension of the rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210638949.9A CN114873154B (en) | 2022-06-08 | 2022-06-08 | Belt tensioning device of belt conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210638949.9A CN114873154B (en) | 2022-06-08 | 2022-06-08 | Belt tensioning device of belt conveyor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114873154A true CN114873154A (en) | 2022-08-09 |
| CN114873154B CN114873154B (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210638949.9A Active CN114873154B (en) | 2022-06-08 | 2022-06-08 | Belt tensioning device of belt conveyor |
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| CN (1) | CN114873154B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887461A (en) * | 2012-10-12 | 2013-01-23 | 南通力威机械有限公司 | Winch braking cylinder |
| CN204647072U (en) * | 2015-03-31 | 2015-09-16 | 南车戚墅堰机车车辆工艺研究所有限公司 | A kind of multi-disc dry brake totally |
| CN205675691U (en) * | 2016-06-13 | 2016-11-09 | 山东博诚电气有限公司 | A kind of magneto variable frequency tensioning device |
| CN209291332U (en) * | 2018-11-30 | 2019-08-23 | 徐州五洋科技有限公司 | Constant-torque tensioning electric control system for continuous belt conveyor |
| CN214693056U (en) * | 2021-04-14 | 2021-11-12 | 徐州光圆国腾矿山设备制造有限公司 | Double-braking system for winch |
-
2022
- 2022-06-08 CN CN202210638949.9A patent/CN114873154B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887461A (en) * | 2012-10-12 | 2013-01-23 | 南通力威机械有限公司 | Winch braking cylinder |
| CN204647072U (en) * | 2015-03-31 | 2015-09-16 | 南车戚墅堰机车车辆工艺研究所有限公司 | A kind of multi-disc dry brake totally |
| CN205675691U (en) * | 2016-06-13 | 2016-11-09 | 山东博诚电气有限公司 | A kind of magneto variable frequency tensioning device |
| CN209291332U (en) * | 2018-11-30 | 2019-08-23 | 徐州五洋科技有限公司 | Constant-torque tensioning electric control system for continuous belt conveyor |
| CN214693056U (en) * | 2021-04-14 | 2021-11-12 | 徐州光圆国腾矿山设备制造有限公司 | Double-braking system for winch |
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| Publication number | Publication date |
|---|---|
| CN114873154B (en) | 2023-06-09 |
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