CN202328319U - Weighing type coal feeder - Google Patents
Weighing type coal feeder Download PDFInfo
- Publication number
- CN202328319U CN202328319U CN2011204896867U CN201120489686U CN202328319U CN 202328319 U CN202328319 U CN 202328319U CN 2011204896867 U CN2011204896867 U CN 2011204896867U CN 201120489686 U CN201120489686 U CN 201120489686U CN 202328319 U CN202328319 U CN 202328319U
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- Prior art keywords
- weighing
- counterweight
- coal feeder
- tensioning
- load cells
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Abstract
The utility model discloses a weighing type coal feeder. The weighing type coal feeder comprises a shell, a transmission device, a weighing device and a cleaning device, wherein a feed hopper is arranged on the shell; the transmission device is arranged in the shell and comprises a driving wheel, a driven wheel and a conveyor belt which is connected between the driving wheel and the driven wheel; the weighing device is arranged in the shell and comprises a weighing supporting roller and a weighing sensor; the cleaning device is arranged below the transmission device; a device for measuring the tensile force of the belt is arranged at the driven wheel; the weighing sensor and the weighing supporting roller of the weighing device are directly connected with each other, and a weights-hoist verifying unit is arranged on the weighing device; a buffering supporting roller is arranged in the feed hopper; and a coal level detection device is arranged below the buffering supporting roller. The weighing type coal feeder is high in weighing and measuring accuracy, and by adoption of the weighing type coal feeder, the coal level in a storage bin can be detected in real time, and verification can be conveniently performed by manually hoisting weights.
Description
Technical field
The utility model relates to the feeder technical field, specifically, relates to the weighing coal feeder that a kind of power plant is used.
Background technology
At present, existing boiler has a housing with the weighing coal feeder of coal supply; Main drive and meausring apparatus are arranged in housing, and main drive has driving wheel and driven pulley, between driving wheel and driven pulley, is connected with belt; One feed hopper is arranged above belt; Scavenging machine is arranged below main drive, and meausring apparatus is installed in the space that belt surrounds, and is positioned at an end of driving wheel.The belt of this feeder receive temperature, material what etc. the influence of the factor variation that brings belt tension, influenced the precision of weighing; The feed bin coal level detecting apparatus of existing weighing coal feeder is to confirm to have on the belt coal or do not have coal through switch, can not in time reflect to have or not coal in the feed bin; Existing weighing coal feeder is when carrying out verification to sensor, and the feeder that need stop is opened side door, carrys additionally calibration equipment and carries out verification, and is time-consuming.
The utility model content
The utility model technical problem to be solved is: the weighing coal feeder that a kind of weighing precision is high and can carry out manual link code verification is provided.
For solving the problems of the technologies described above, the technical scheme of the utility model is:
Weighing coal feeder comprises housing, and said housing is provided with feed hopper; Be arranged on the transmission device in the said housing, said transmission device comprise driving wheel, driven pulley and be connected in driving wheel and driven pulley between belt conveyor; Be arranged on the meausring apparatus in the said housing, said meausring apparatus comprises weighing carrier roller and LOAD CELLS; Be arranged on the clearing apparatus of said transmission device below; Said driven pulley place is provided with and surveys the belt tension device; The LOAD CELLS of said meausring apparatus directly links to each other with weighing carrier roller, and said meausring apparatus also is provided with the link code calibration equipment; Be provided with impact idler in the said feed hopper, the below of said impact idler is provided with the coal level detecting apparatus.
As a preferred implementation; Said survey belt tension device comprises and the coaxial mounted driven cylinder of said driven pulley; Also comprise rolling bearing units, tensioning slide block, tensioning screw mandrel and pull-type sensor, said tensioning screw mandrel is connected with the tensioning connecting rod, and said driven cylinder is connected with the tensioning slide block through rolling bearing units; Said tensioning slide block is connected on the tensioning screw mandrel, and the upper end of said tensioning screw mandrel is connected with pull-type sensor.
As a preferred implementation; Said link code calibration equipment comprises handle, link code drive rod, camshaft, adjustable counterweight pull bar, counterweight supporting plate and counterweight; Said handle is connected with said link code drive rod, and an end of said counterweight supporting plate is connected with the carrying roller strutbeam of said weighing carrier roller, and the centre position of said counterweight supporting plate is connected with camshaft; Said link code drive rod is connected with said camshaft, and the top of said adjustable counterweight pull bar is connected with LOAD CELLS with said weighing carrier roller.
As a preferred implementation, said coal level detecting apparatus comprises the pressure type LOAD CELLS, and said pressure type LOAD CELLS is positioned at the below of said impact idler, and said impact idler is positioned at the bottom of feed hopper.
As a preferred implementation, said housing is provided with openable access door.
After having adopted technique scheme, the beneficial effect of the utility model is:
When since the degree of tightness of belt change excessive, cause said driven roller shifting more greatly apart from the time, on said tensioning connecting rod; Apply a revolving force; The tensioning connecting rod drives the rotation of tensioning screw mandrel, dress tensioning slide block, rolling bearing units on the tensioning screw mandrel, tensioning slide block and rolling bearing units just on the tensioning screw mandrel front and back moving belt seat bearing and driven cylinder link; Rolling bearing units and driven cylinder link; Driven cylinder also moves forward and backward thereupon, thereby can adjust driven cylinder to suitable position, makes belt tension or unclamps suitable degree.On the tensioning screw mandrel; Pull-type sensor is housed, and the tension force of belt just can pass on the pull-type sensor through the displacement of tensioning screw mandrel, thereby measures the tension force of belt; The tension variation of belt can exert an influence to measuring accuracy; When belt tension impacts metering, can pass through instrument compensation, eliminate the influence of belt tension to metering.
Because weighing carrier roller directly is connected with LOAD CELLS, has reduced the transmission link of power, has improved weighing precision.
Because handle drives camshaft through the link code drive rod, rotate up thereby drive the counterweight supporting plate, the counterweight supporting plate will hold up counterweight, and counterweight is not contacted with adjustable counterweight pull bar, and feeder is in running status; Handle is threaded to checksum location; Handle will drive the counterweight supporting plate and be rotated down through link code drive rod, camshaft; Counterweight will be pressed on the adjustable counterweight pull bar; At this moment the counterweight supporting plate does not contact with counterweight, and the gravity of counterweight will pass on the LOAD CELLS through adjustable counterweight pull bar, weighing carrier roller, and feeder is in the verification state.
Because impact idler is equipped with in said feed hopper bottom; The pressure type LOAD CELLS is equipped with in said impact idler below; The different different pressure that produced of coal column height will affact on the said pressure type LOAD CELLS through this mechanism in user's feed bin like this, and said pressure type sensor is sent to pressure signal on the instrument, when the coal position is crossed when low; Can set through instrument and send alarm signal, realize the real-time detection of feed bin coal position.
The utility model Weighing precision is high, and real-time detection has been realized in feed bin coal position, and can easily carry out manual link code verification.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Fig. 1 is the overall structure sketch map of the utility model;
Fig. 2 is the part section structural representation of the utility model;
Fig. 3 pulls thick stick part-structure sketch map in the utility model link code calibration equipment;
Fig. 4 is the link code part-structure sketch map in the utility model link code calibration equipment;
Fig. 5 is the coal level detecting apparatus structural representation of the utility model;
Fig. 6 is the survey belt tension apparatus structure sketch map of the utility model;
Among the figure: 1, handle; 2, camshaft; 3, counterweight supporting plate; 4, counterweight; 5, adjustable counterweight pull bar; 6, impact idler; 7, pressure type LOAD CELLS; 8, tensioning screw mandrel; 9, tensioning slide block; 10, rolling bearing units; 11, pull-type sensor; 12, tensioning connecting rod; 13, driven cylinder; 14, belt conveyor; 15, feed hopper; 16, LOAD CELLS; 17, weighing carrier roller; 18, link code drive rod; 19, housing.
The specific embodiment
With reference to accompanying drawing, the weighing coal feeder of the utility model comprises housing 19, and housing 19 is provided with openable access door, and housing 19 is provided with feed hopper 15; Transmission device, said transmission device comprise driving wheel, driven pulley and be connected in driving wheel and driven pulley between belt conveyor 14; Meausring apparatus comprises weighing carrier roller 17 and LOAD CELLS 16; Said transmission device below is provided with clearing apparatus, and the driven pulley place of said transmission device is provided with and surveys the belt tension device; The LOAD CELLS 16 of said meausring apparatus directly links to each other with weighing carrier roller 17, and said meausring apparatus also is provided with the link code calibration equipment; Be provided with impact idler in the feed hopper 15, said impact idler below is provided with the coal level detecting apparatus.
Said survey belt tension device comprises and the coaxial mounted driven cylinder 13 of said driven pulley; Also comprise rolling bearing units 10, tensioning slide block 9, tensioning screw mandrel 8 and pull-type sensor 11; Tensioning screw mandrel 8 is connected with tensioning connecting rod 12; Driven cylinder 13 is connected with tensioning slide block 9 through rolling bearing units 10, and tensioning slide block 9 is connected on the tensioning screw mandrel 8, and the pull-type sensor 11 in the upper end of tensioning screw mandrel 8 connects.Like this, when since the degree of tightness of belt change excessive, cause driven cylinder 13 move more greatly apart from the time; On tensioning connecting rod 12, apply a revolving force, tensioning connecting rod 12 drives 8 rotations of tensioning screw mandrel; Tensioning slide block 9, rolling bearing units 10 are housed on the tensioning screw mandrel 8, and tensioning slide block 9 and rolling bearing units 10 move before and after just on tensioning screw mandrel 8, and driven cylinder 13 also moves forward and backward thereupon; Thereby can adjust driven cylinder 13 to suitable position, make belt conveyor 14 tensionings or unclamp suitable degree.On tensioning screw mandrel 8; Pull-type sensor 11 is housed, and the tension force of belt conveyor 14 just can pass on the pull-type sensor 11 through tensioning screw mandrel 8, thereby measures the tension force of belt conveyor 14; The tension variation of belt conveyor 14 can exert an influence to measuring accuracy; When belt conveyor tension force impacts metering, can pass through instrument compensation, eliminate of the influence of belt conveyor tension force to metering.
Said link code calibration equipment comprises handle 1, link code drive rod 18, camshaft 2, adjustable counterweight pull bar 5, counterweight supporting plate 3 and counterweight 4; Handle 1 is connected with link code drive rod 18, and an end of counterweight supporting plate 3 is connected with the carrying roller strutbeam, and the centre position is connected with camshaft 2; Link code drive rod 18 is connected with camshaft 2; The other end of counterweight supporting plate 3 can hold up the counterweight 4 adjustable counterweight pull bars 5 of disengaging or fall counterweight 4 and be pressed on the adjustable counterweight pull bar 5 through adjustment cam axle 2, is connected with weighing carrier roller 17 and LOAD CELLS 16 on the top of adjustable counterweight pull bar 5, and weighing carrier roller 17 directly is connected with LOAD CELLS 16; The transmission link of minimizing power improves weighing precision; Like this, handle 1 drives camshaft 2 through link code drive rod 18, rotates up thereby drive counterweight supporting plate 3, and counterweight supporting plate 3 will hold up counterweight 4, and counterweight 4 is not contacted with adjustable counterweight pull bar 5, and feeder is in running status; Handle 1 is threaded to checksum location; Handle 1 will drive counterweight supporting plate 3 and be rotated down through link code drive rod 18, camshaft 2; Counterweight 4 will be pressed on the adjustable counterweight pull bar 5; At this moment counterweight supporting plate 3 does not contact with counterweight 4, and the gravity of counterweight 4 will pass on the LOAD CELLS 16 through adjustable counterweight pull bar 5, weighing carrier roller 17, and feeder is in the verification state.
Said coal level detecting apparatus comprises pressure type LOAD CELLS 7, and pressure type LOAD CELLS 7 is positioned at the below of impact idler 6, and impact idler 6 is positioned at the bottom of feed hopper 15; The different different pressure that produced of coal column height will affact on the pressure type LOAD CELLS 7 through impact idler 6 in user's feed bin like this; Pressure type LOAD CELLS 7 is sent to pressure signal on the instrument; When the coal position is crossed when low; Can set through instrument and send alarm signal, realize the real-time detection of feed bin coal position.
The above is giving an example of the utility model preferred forms, and the part of wherein not addressing in detail is those of ordinary skills' common practise.The protection domain of the utility model is as the criterion with the content of claim, and any teachings and equivalent transformation of carrying out based on the utility model is also within the protection domain of the utility model.
Claims (5)
1. weighing coal feeder comprises
Housing, said housing is provided with feed hopper;
Be arranged on the transmission device in the said housing, said transmission device comprise driving wheel, driven pulley and be connected in driving wheel and driven pulley between belt conveyor;
Be arranged on the meausring apparatus in the said housing, said meausring apparatus comprises weighing carrier roller and LOAD CELLS;
Be arranged on the clearing apparatus of said transmission device below; It is characterized in that:
Said driven pulley place is provided with and surveys the belt tension device;
The LOAD CELLS of said meausring apparatus directly links to each other with weighing carrier roller, and said meausring apparatus also is provided with the link code calibration equipment;
Be provided with impact idler in the said feed hopper, the below of said impact idler is provided with the coal level detecting apparatus.
2. weighing coal feeder as claimed in claim 1; It is characterized in that: said survey belt tension device comprises and the coaxial mounted driven cylinder of said driven pulley; Also comprise rolling bearing units, tensioning slide block, tensioning screw mandrel and pull-type sensor, said tensioning screw mandrel is connected with the tensioning connecting rod, and said driven cylinder is connected with the tensioning slide block through rolling bearing units; Said tensioning slide block is connected on the tensioning screw mandrel, and the upper end of said tensioning screw mandrel is connected with pull-type sensor.
3. weighing coal feeder as claimed in claim 1; It is characterized in that: said link code calibration equipment comprises handle, link code drive rod, camshaft, adjustable counterweight pull bar, counterweight supporting plate and counterweight; Said handle is connected with said link code drive rod; One end of said counterweight supporting plate is connected with the carrying roller strutbeam of said weighing carrier roller; The centre position of said counterweight supporting plate is connected with camshaft, and said link code drive rod is connected with said camshaft, and the top of said adjustable counterweight pull bar is connected with LOAD CELLS with said weighing carrier roller.
4. weighing coal feeder as claimed in claim 1 is characterized in that: said coal level detecting apparatus comprises the pressure type LOAD CELLS, and said pressure type LOAD CELLS is positioned at the below of said impact idler, and said impact idler is positioned at the bottom of said feed hopper.
5. like each described weighing coal feeder of claim 1 to 4, it is characterized in that: said housing is provided with openable access door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204896867U CN202328319U (en) | 2011-11-30 | 2011-11-30 | Weighing type coal feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204896867U CN202328319U (en) | 2011-11-30 | 2011-11-30 | Weighing type coal feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202328319U true CN202328319U (en) | 2012-07-11 |
Family
ID=46440300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204896867U Expired - Fee Related CN202328319U (en) | 2011-11-30 | 2011-11-30 | Weighing type coal feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202328319U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033249A (en) * | 2012-08-29 | 2013-04-10 | 江苏永钢集团有限公司 | Balance calibrating device |
| CN108489591A (en) * | 2018-03-21 | 2018-09-04 | 郑州金恒电子技术有限公司 | A kind of reinspection method of weighing having error compensation |
| CN109489792A (en) * | 2017-09-11 | 2019-03-19 | 南京梅山冶金发展有限公司 | A kind of feed proportioning precision on-line monitoring method |
| CN110127300A (en) * | 2019-06-12 | 2019-08-16 | 安徽奕隆电力装备制造有限公司 | A kind of Gravimetric Coal Feeders |
| WO2021233393A1 (en) * | 2020-05-21 | 2021-11-25 | 煤炭科学研究总院 | Belt state monitoring apparatus and method for self-powered belt conveyor |
-
2011
- 2011-11-30 CN CN2011204896867U patent/CN202328319U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033249A (en) * | 2012-08-29 | 2013-04-10 | 江苏永钢集团有限公司 | Balance calibrating device |
| CN109489792A (en) * | 2017-09-11 | 2019-03-19 | 南京梅山冶金发展有限公司 | A kind of feed proportioning precision on-line monitoring method |
| CN108489591A (en) * | 2018-03-21 | 2018-09-04 | 郑州金恒电子技术有限公司 | A kind of reinspection method of weighing having error compensation |
| CN110127300A (en) * | 2019-06-12 | 2019-08-16 | 安徽奕隆电力装备制造有限公司 | A kind of Gravimetric Coal Feeders |
| WO2021233393A1 (en) * | 2020-05-21 | 2021-11-25 | 煤炭科学研究总院 | Belt state monitoring apparatus and method for self-powered belt conveyor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141130 |
|
| EXPY | Termination of patent right or utility model |