CN216017891U - Traction type multifunctional straw granulator - Google Patents

Abstract

The utility model belongs to the technical field of agricultural mechanical equipment, and particularly relates to a traction type multifunctional straw granulator. This multi-functional straw granulation machine of towed, including the car frame body, characterized by: the front end of the frame body is provided with a traction frame, a power oil pump is arranged on the traction frame, the power oil pump is connected with a main transmission shaft through a main gearbox, the main transmission shaft is connected with a power distribution mechanism, the power distribution mechanism is respectively connected with a picking pulverizer and a straw conveyor, the straw conveyor is connected with a screening feeding mechanism through a throwing fan pipe, the screening feeding mechanism is connected with a rolling granulating mechanism, and the rolling granulating mechanism is connected with a particle material box through a finished product conveying belt. The utility model has the beneficial effects that: can follow the ground directly become the granule with straw or the bale of beating into the bundle, efficient, application scope is wide, be convenient for transport, integration degree height, for with straw comprehensive utilization for plant's bed material, animal feed, biofuel or industrial raw materials etc. provide the integration processing mode.

Description

Traction type multifunctional straw granulator

(I) technical field

The utility model belongs to the technical field of agricultural mechanical equipment, and particularly relates to a traction type multifunctional straw granulator.

(II) background of the utility model

The straw resources of China are very rich, and about 10 hundred million tons of straws can be produced in agricultural production every year. At present, the treatment modes of straws are mainly three: straw crushing and returning to the field, direct burning and comprehensive utilization of straw. As the straws can not be completely rotten in a short time, the germination rate and survival rate of the seeds can be greatly reduced due to the excessive content of the straws in the soil. The direct burning of the straw is more harmful, and is easy to cause fire and harm life and property safety. Comprehensive utilization of straws is a better straw treatment mode at present, but crop straws are scattered, have strong seasonality and are difficult to store and transport, and the comprehensive utilization of the straws is directly influenced. The straw is utilized to press high-quality high-fiber granular materials, and the high-fiber granular materials are used as ideal bed-laying materials of farms, animal feeds, biofuels or industrial raw materials and are good modes for treating the straw by the biomass. However, at present, no equipment capable of directly granulating straws or bales of grass in the ground is available.

(III) contents of utility model

In order to make up for the defects of the prior art, the utility model provides the traction type multifunctional straw granulator which is high in efficiency, wide in application range, convenient to transport and high in integration degree.

The utility model is realized by the following technical scheme:

the utility model provides a multi-functional straw granulation machine of towed, includes the car frame body, characterized by: the front end of the frame body is provided with a traction frame, a power oil pump is arranged on the traction frame, the power oil pump is connected with a main transmission shaft through a main gearbox, the main transmission shaft is connected with a power distribution mechanism, the power distribution mechanism is respectively connected with a picking pulverizer and a straw conveyor, the straw conveyor is connected with a screening feeding mechanism through a throwing fan pipe, the screening feeding mechanism is connected with a rolling granulating mechanism, and the rolling granulating mechanism is connected with a particle material box through a finished product conveying belt.

The power distribution mechanism is connected with the main transmission shaft through the transfer case, the transfer case is respectively connected with the left transmission shaft and the right transmission shaft, the left transmission shaft is connected with the straw conveying driving belt pulley, and the right transmission shaft is connected with the picking and smashing driving belt pulley.

Pick up crushing driving pulley and pick up the crushing driven pulley of smashing and be connected, pick up crushing driven pulley and drive and pick up crushing main shaft and rotate, pick up the installation on the crushing main shaft and pick up crushing roller, pick up the installation on the crushing roller and pick up crushing blade holder, pick up the installation on the crushing blade holder and pick up crushing blade.

The straw conveying driving belt pulley is connected with a straw conveying driven belt pulley of the straw conveyor, the straw conveying driven belt pulley drives a straw conveying main shaft to rotate, a straw conveying roller is mounted on the straw conveying main shaft, a straw conveying auger is mounted on the straw conveying roller, and a throwing air feeder blade is mounted at the end of the straw conveying main shaft.

The screening and feeding mechanism comprises a drum screen tank body, a drum screen is arranged at the bottom of the drum screen tank body, and a screening and conveying auger is arranged in the drum screen.

The front end of the rolling and granulating mechanism is connected with the screening and feeding mechanism through a feeding and conveying belt, the tail end of the feeding and conveying belt is arranged between an upper die ring roller and a lower die ring roller of the rolling and granulating mechanism, spiral pushers are respectively installed on the upper die ring roller and the lower die ring roller, the tail end of each spiral pusher is connected with a lifting machine, and the lifting machine is connected with a finished product conveying belt through a secondary drum screen.

Be equipped with bale reducing mechanism on the carriage frame body, bale reducing mechanism bottom is connected with the drum sieve jar body, and the bale reducing mechanism outside is equipped with folding feeding platform, is equipped with bale on the folding feeding platform in proper order and cuts rope device and bale draw-off mechanism.

The bale smashing device comprises a bale smashing fixing frame, a plurality of bale smashing shafts are arranged on the bale smashing fixing frame, a bale smashing cutter seat is arranged on each bale smashing shaft, and a bale smashing blade is arranged on each bale smashing cutter seat.

Folding feeding platform include with car frame body articulated in the arm that stretches out and draw back with the arm articulated outward that stretches out and draws back mutually, be connected first telescopic cylinder between interior arm that stretches out and draws back and the car frame body, the flexible hydro-cylinder of second is connected between outward arm that stretches out and draws back and the interior arm that stretches out and draws back, telescopic support frame is established to the interpolation of outward arm that stretches out and draws back, telescopic support frame outer end is equipped with the backing roll, telescopic support frame is fixed mutually with outward arm that stretches out and draws back through adjusting pin axle, be equipped with bale transport chain on outward arm and the interior arm that stretches out and draws back, install the blend stop on the bale transport chain.

The straw bundle rope cutting device comprises a rope cutting blade arranged on an inner telescopic arm, the rope cutting blade is arranged on a rope cutting chain, and a rope cutting blade limiting sensor is further arranged on the inner telescopic arm.

Bale draw-off device includes the stay cord couple, and the stay cord couple is installed on the stay cord chain, and the stay cord chain is installed on the draw-off rope mount, and draw-off rope mount tip is equipped with the spacing sensor of stay cord couple, and draw-off rope mount tip installation twines the rope seat, and draw-off rope lift cylinder is installed to draw-off rope mount bottom, and draw-off rope mount middle part is equipped with bale height sensor.

Lifting support is installed to the traction frame front end, and granule workbin bottom installation ejection of compact hydro-cylinder, ejection of compact baffle are connected to the ejection of compact hydro-cylinder, and spacing wheel of car frame body bottom installation, bale reducing mechanism outside are equipped with pressure sensor.

The utility model has the beneficial effects that: can follow the ground directly become the granule with straw or the bale of beating into the bundle, efficient, application scope is wide, be convenient for transport, integration degree height, for with straw comprehensive utilization for plant's bed material, animal feed, biofuel or industrial raw materials etc. provide the integration processing mode.

(IV) description of the drawings

The utility model will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a rear view of the present invention;

FIG. 3 is a schematic structural diagram of a power distribution mechanism of the present invention;

FIG. 4 is a schematic view of the pick-up shredder of the present invention;

FIG. 5 is a schematic view of the straw conveyor structure of the present invention;

FIG. 6 is a schematic structural view of a screening and feeding mechanism of the present invention;

FIG. 7 is a schematic structural view of a rolling granulation mechanism of the present invention;

FIG. 8 is a schematic structural view of a folded feeding platform in a tightened state according to the present invention;

FIG. 9 is a structural diagram of the folding feeding platform of the present invention in an unfolded state;

FIG. 10 is a schematic view of the bale breaker of the present invention;

FIG. 11 is a schematic view of the bale pull cord apparatus of the present invention;

FIG. 12 is a schematic view of the discharge baffle mounting structure of the present invention;

in the figure, 1 a frame body, 2 a traction frame, 3 a power oil pump, 4 a main gearbox, 5 a main transmission shaft, 6 a power distribution mechanism, 7 a picking and smashing device, 8 a straw conveyor, 9 a throwing air feeder pipe, 10 a screening and feeding mechanism, 11 a rolling and granulating mechanism, 12 a finished product conveying belt, 13 a particle bin, 14 a transfer case, 15 a left transmission shaft, 16 a right transmission shaft, 17 a straw conveying driving belt pulley, 18 a picking and smashing driving belt pulley, 19 a picking and smashing driven belt pulley, 20 a picking and smashing main shaft, 21 a picking and smashing roller, 22 a picking and smashing blade, 23 a picking and smashing blade, 24 a straw conveying driven belt pulley, 25 a straw conveying main shaft, 26 a straw conveying roller, 27 a straw conveying auger, 28 a throwing air feeder blade, 29 a drum screen tank body, 30 a drum screen, 31 a screening and conveying auger, 32 a feeding and conveying belt, 33 an upper die ring roller, 34 a lower die ring roller and 35 a spiral pushing device, 36 hoister, 37 secondary drum sieve, 38 bale smashing device, 39 folding feeding platform, 40 bale rope cutting device, 41 bale rope drawing device, 42 bale smashing fixing frame, 43 bale smashing shaft, 44 bale smashing cutter seat, 45 bale smashing blade, 46 inner telescopic arm, 47 outer telescopic arm, 48 first telescopic oil cylinder, 49 second telescopic oil cylinder, 50 telescopic supporting frame, 51 supporting roller, 52 adjusting pin shaft, 53 bale conveying chain, 54 baffle strip, 55 rope cutting blade, 56 rope cutting chain, 57 rope cutting blade limit sensor, 58 pull rope hook, 59 pull rope chain, 60 rope drawing fixing frame, 61 pull rope hook limit sensor, 62 rope winding seat, 63 rope drawing lifting oil cylinder, 64 bale height sensor, 65 lifting support, 66 discharging oil cylinder, 67 discharging baffle, 68 limit wheel and 69 pressure sensor.

(V) detailed description of the preferred embodiments

The attached drawing is an embodiment of the utility model. The embodiment comprises a frame body 1, wherein a traction frame 2 is installed at the front end of the frame body 1, a power oil pump 3 is installed on the traction frame 2, the power oil pump 3 is connected with a main transmission shaft 5 through a main gearbox 4, the main transmission shaft 5 is connected with a power distribution mechanism 6, the power distribution mechanism 6 is respectively connected with a picking pulverizer 7 and a straw conveyor 8, the straw conveyor 8 is connected with a screening feeding mechanism 10 through a throwing air feeder pipe 9, the screening feeding mechanism 10 is connected with a rolling and granulating mechanism 11, and the rolling and granulating mechanism 11 is connected with a particle material box 13 through a finished product conveying belt 12. The power distribution mechanism 6 is connected with the main transmission shaft 5 through a transfer case 14, the transfer case 14 is respectively connected with a left transmission shaft 15 and a right transmission shaft 16, the left transmission shaft 15 is connected with a straw conveying driving belt pulley 17, and the right transmission shaft 16 is connected with a picking and smashing driving belt pulley 18. The picking and smashing driving belt pulley 18 is connected with a picking and smashing driven belt pulley 19 of the picking and smashing device 7, the picking and smashing driven belt pulley 19 drives a picking and smashing main shaft 20 to rotate, a picking and smashing roller 21 is installed on the picking and smashing main shaft 20, a picking and smashing cutter seat 22 is installed on the picking and smashing roller 21, and a picking and smashing blade 23 is installed on the picking and smashing cutter seat 22. The straw conveying driving belt pulley 17 is connected with a straw conveying driven belt pulley 24 of the straw conveyor 8, the straw conveying driven belt pulley 24 drives a straw conveying main shaft 25 to rotate, a straw conveying roller 26 is installed on the straw conveying main shaft 25, a straw conveying auger 27 is installed on the straw conveying roller 26, and a throwing air feeder blade 28 is installed at the end part of the straw conveying main shaft 25. The screening and feeding mechanism 10 comprises a drum screen tank 29, a drum screen 30 is arranged at the bottom of the drum screen tank 29, and a screening and conveying auger 31 is arranged in the drum screen 30. The front end of the rolling granulating mechanism 11 is connected with the screening feeding mechanism 10 through a feeding conveying belt 32, the tail end of the feeding conveying belt 32 is arranged between an upper die ring roller 33 and a lower die ring roller 34 of the rolling granulating mechanism 11, the upper die ring roller 33 and the lower die ring roller 34 are respectively provided with a spiral pusher 35, the tail end of the spiral pusher 35 is connected with a lifter 36, and the lifter 36 is connected with the finished product conveying belt 12 through a secondary drum screen 37.

The vehicle frame body 1 is provided with a bale smashing device 38, the bottom of the bale smashing device 38 is connected with the drum screen tank body 29, the outer side of the bale smashing device 38 is provided with a folding feeding platform 39, and a bale rope cutting device 40 and a bale rope drawing device 41 are sequentially arranged on the folding feeding platform 39. The bale crushing device 38 comprises a bale crushing fixing frame 42, a plurality of bale crushing shafts 43 are mounted on the bale crushing fixing frame 42, a bale crushing cutter seat 44 is mounted on each bale crushing shaft 43, and a bale crushing blade 45 is mounted on each bale crushing cutter seat 44. Folding feeding platform 39 includes with car frame body 1 articulated interior telescopic arm 46 and with interior telescopic arm 46 articulated outer telescopic arm 47 mutually, connect first telescopic cylinder 48 between interior telescopic arm 46 and the car frame body 1, connect second telescopic cylinder 49 between outer telescopic arm 47 and the interior telescopic arm 46, establish telescopic bracket 50 in the outer telescopic arm 47, telescopic bracket 50 outer end is equipped with backing roll 51, telescopic bracket 50 is fixed mutually with outer telescopic arm 47 through adjusting pin shaft 52, be equipped with bale conveyor chain 53 on outer telescopic arm 47 and the interior telescopic arm 46, install blend stop 54 on bale conveyor chain 53. The bale rope cutting device 40 comprises a rope cutting blade 55 arranged on the inner telescopic arm 46, the rope cutting blade 55 is arranged on a rope cutting chain 56, and a rope cutting blade limit sensor 57 is further arranged on the inner telescopic arm 46. The bale draw-off device 41 comprises a draw-off hook 58, the draw-off hook 58 is mounted on a draw-off chain 59, the draw-off chain 59 is mounted on a draw-off fixing frame 60, a draw-off hook limiting sensor 61 is arranged at the end of the draw-off fixing frame 60, a rope winding seat 62 is mounted at the end of the draw-off fixing frame 60, a draw-off lifting cylinder 63 is mounted at the bottom of the draw-off fixing frame 60, and a bale height sensor 64 is arranged at the middle part of the draw-off fixing frame 60.

Lifting support 65 is installed to traction frame 2 front end, and granule workbin 13 bottom installation ejection of compact hydro-cylinder 66, ejection of compact hydro-cylinder 66 connect discharge baffle 67, and spacing wheel 68 is installed to frame body 1 bottom, and the bale reducing mechanism 38 outside is equipped with pressure sensor 69.

By adopting the traction type multifunctional straw granulator, straws scattered in the ground are driven by the tractor to move through the traction frame 2, meanwhile, the power oil pump 3 drives the main transmission shaft 5 to rotate through the main transmission case 4, the main transmission shaft 5 transmits power to the transfer case 14 of the power distribution mechanism 6, the transfer case 14 sequentially passes through the right transmission shaft 16, the picking and crushing driving belt pulley 18, the picking and crushing driven belt pulley 19 and the picking and crushing main shaft 20 to drive the picking and crushing roller 21 of the picking and crushing device 7 to rotate, and therefore the straws in the ground are cut and picked up to enter the straw conveyor 8 through the rotation of the picking and crushing blade 23. The transfer case 14 sequentially passes through the left transmission shaft 15, the straw conveying driving belt pulley 17, the straw conveying driven belt pulley 24 and the straw conveying main shaft 25 to drive the straw conveying roller 26 of the straw conveyor 8 to rotate, so that the straws are pushed inwards through the straw conveying auger 27, meanwhile, the straw conveying main shaft 25 drives the throwing blower blade 28 to rotate, and the straws are conveyed into the drum screen tank 29 of the screening and feeding mechanism 10 through the throwing blower pipe 9. The straws entering the drum screen tank 29 are separated from soil, foreign matters and the like under the action of the drum screen 30, the screened straws are sent to the feeding conveying belt 32 by the screening conveying auger 31, the screened straws are sent to a position between the upper die ring roller 33 and the lower die ring roller 34 of the rolling and granulating mechanism 11 by the feeding conveying belt 32, the straws are extruded into granules by the upper die ring roller 33 and the lower die ring roller 34, then the straws are pushed out to the lifter 36 by the spiral pusher 35, the granules are lifted to the secondary drum screen 37 by the lifter 36, and the straws are sent to the finished product conveying belt 12 by the auger after being separated from the foreign matters again, and then enter the granule bin 13.

For bales which are bundled, the folding feeding platform 39 is pulled out, the inner telescopic arm 46 is pulled to be horizontal through the first telescopic oil cylinder 48, the outer telescopic arm 47 is pulled to be horizontal through the second telescopic oil cylinder 49, the bales are conveyed to the folding feeding platform 39, the bale conveying chain 53 can drive the bales to move forwards to the bale cutting rope device 40, the cutting rope chain 56 drives the cutting rope blade 55 to move, ropes on the bales are cut off, the bales continue to move forwards to the bale drawing rope device 41, the pull rope chain 59 drives the pull rope hook 58 to move to hook the ropes and pull the ropes out to the rope winding seat 62, the rope winding seat 62 rotates to wind and pack the ropes, the bales which are drawn out of the ropes enter the bale crushing device 38, the bale crushing shaft 43 drives the bale crushing blade 45 to rotate at a high speed, and the bales are crushed and are conveyed into the drum screen tank 29 of the screening feeding mechanism 10, and granulation is completed. When the bales are lifted on the folding feeding platform 39, the supporting rollers 51 at the edges of the bales are convenient for the bales to roll in, and the extension length of the telescopic supporting frame 50 can be adjusted by the adjusting pin shaft 52 so as to adapt to the distance of the bales. The barrier strips 54 are inserted into the bales to increase their friction and prevent them from slipping when they are moved. The rope cutting blade limit sensor 57 can enable the rope cutting blade 55 to move within a certain range, and the rope pulling hook limit sensor 61 can enable the rope pulling hook 58 to move within a certain range to prevent deviation. The bale height sensor 64 senses the height of the cut bale at any time, so that the rope drawing lifting cylinder 63 acts, and the height of the rope pulling hook 58 is adjusted to enable the rope pulling hook to hook the rope on the cut bale.

The lifting support 65 is convenient for the traction frame 2 to be connected with a tractor, and the limiting wheel 68 ensures that the picking and crushing blade 23 can not be inserted into the soil and can cut off all straws. The discharging oil cylinder 66 drives the discharging baffle 67 to move, and the particle discharging speed is adjusted. The pressure sensor 69 automatically adjusts the speed of movement of the bale conveyor chain 53 to prevent the bale from crushing the bale breaker 38.

Claims (10)

1. The utility model provides a multi-functional straw granulation machine of towed, includes car frame body (1), characterized by: the front end of the frame body (1) is provided with a traction frame (2), a power oil pump (3) is arranged on the traction frame (2), the power oil pump (3) is connected with a main transmission shaft (5) through a main gearbox (4), the main transmission shaft (5) is connected with a power distribution mechanism (6), the power distribution mechanism (6) is respectively connected with a picking pulverizer (7) and a straw conveyor (8), the straw conveyor (8) is connected with a screening feeding mechanism (10) through a throwing and feeding fan pipe (9), the screening feeding mechanism (10) is connected with a rolling and granulating mechanism (11), and the rolling and granulating mechanism (11) is connected with a particle material box (13) through a finished product conveying belt (12).

2. The traction type multifunctional straw granulator according to claim 1, which is characterized in that: the power distribution mechanism (6) is connected with the main transmission shaft (5) through a transfer case (14), the transfer case (14) is respectively connected with a left transmission shaft (15) and a right transmission shaft (16), the left transmission shaft (15) is connected with a straw conveying driving belt pulley (17), the right transmission shaft (16) is connected with a picking and smashing driving belt pulley (18), the picking and smashing driving belt pulley (18) is connected with a picking and smashing driven belt pulley (19) of a picking and smashing device (7), the picking and smashing driven belt pulley (19) drives a picking and smashing main shaft (20) to rotate, a picking and smashing roller (21) is installed on the picking and smashing main shaft (20), a picking and smashing cutter seat (22) is installed on the picking and smashing roller seat (21), a picking and smashing cutter blade (23) is installed on the picking and smashing cutter seat (22), and the straw conveying driving belt pulley (17) is connected with a straw conveying driven belt pulley (24) of a straw conveyor (8), the straw conveying driven belt pulley (24) drives a straw conveying main shaft (25) to rotate, a straw conveying roller (26) is installed on the straw conveying main shaft (25), a straw conveying auger (27) is installed on the straw conveying roller (26), and a throwing air feeder blade (28) is installed at the end part of the straw conveying main shaft (25).

3. The traction type multifunctional straw granulator according to claim 1, which is characterized in that: the screening and feeding mechanism (10) comprises a drum screen tank body (29), a drum screen (30) is installed at the bottom of the drum screen tank body (29), and a screening and conveying auger (31) is installed inside the drum screen (30).

4. The traction type multifunctional straw granulator according to claim 1, which is characterized in that: the front end of the rolling and granulating mechanism (11) is connected with the screening and feeding mechanism (10) through a feeding and conveying belt (32), the tail end of the feeding and conveying belt (32) is arranged between an upper die ring roller (33) and a lower die ring roller (34) of the rolling and granulating mechanism (11), the upper die ring roller (33) and the lower die ring roller (34) are respectively provided with a spiral pusher (35), the tail end of the spiral pusher (35) is connected with a lifter (36), and the lifter (36) is connected with a finished product conveying belt (12) through a secondary drum screen (37).

5. The traction type multifunctional straw granulator according to claim 1, which is characterized in that: the straw bale breaking device is characterized in that a straw bale breaking device (38) is arranged on the frame body (1), the bottom of the straw bale breaking device (38) is connected with the drum screen tank body (29), a folding feeding platform (39) is arranged on the outer side of the straw bale breaking device (38), and a straw bale rope cutting device (40) and a straw bale rope drawing device (41) are sequentially arranged on the folding feeding platform (39).

6. The traction type multifunctional straw granulator according to claim 5, which is characterized in that: the bale smashing device (38) comprises a bale smashing fixing frame (42), a plurality of bale smashing shafts (43) are mounted on the bale smashing fixing frame (42), a bale smashing cutter holder (44) is mounted on each bale smashing shaft (43), and a bale smashing blade (45) is mounted on each bale smashing cutter holder (44).

7. The traction type multifunctional straw granulator according to claim 5, which is characterized in that: folding feeding platform (39) include with car frame body (1) articulated interior flexible arm (46) and with interior flexible arm (46) looks articulated outer flexible arm (47), be connected first flexible hydro-cylinder (48) between interior flexible arm (46) and car frame body (1), be connected second flexible hydro-cylinder (49) between outer flexible arm (47) and interior flexible arm (46), telescopic bracket (50) are established in outer flexible arm (47), telescopic bracket (50) outer end is equipped with backing roll (51), telescopic bracket (50) are fixed mutually with outer flexible arm (47) through adjusting round pin axle (52), be equipped with bale on outer flexible arm (47) and the interior flexible arm (46) and carry chain (53), install blend stop (54) on bale transport chain (53).

8. The traction type multifunctional straw granulator according to claim 5, which is characterized in that: the bale rope cutting device (40) comprises a rope cutting blade (55) arranged on an inner telescopic arm (46), the rope cutting blade (55) is installed on a rope cutting chain (56), and a rope cutting blade limiting sensor (57) is further arranged on the inner telescopic arm (46).

9. The traction type multifunctional straw granulator according to claim 5, which is characterized in that: bale draw-off device (41) is including stay cord couple (58), and stay cord couple (58) are installed on stay cord chain (59), and stay cord chain (59) are installed on draw-off rope mount (60), and draw-off rope mount (60) tip is equipped with stay cord couple spacing sensor (61), and draw-off rope mount (60) tip installation twines rope socket (62), and draw-off rope lift cylinder (63) are installed to draw-off rope mount (60) bottom, and draw-off rope mount (60) middle part is equipped with bale height sensor (64).

10. The traction type multifunctional straw granulator according to claim 1, which is characterized in that: lifting support (65) are installed to traction frame (2) front end, and ejection of compact hydro-cylinder (66) are installed to granule workbin (13) bottom, and ejection of compact baffle (67) are connected to ejection of compact hydro-cylinder (66), and spacing wheel (68) are installed to car frame body (1) bottom, and bale reducing mechanism (38) outside is equipped with pressure sensor (69).

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