CN104058312B - A kind of limiter two release lock tank arrangement - Google Patents
A kind of limiter two release lock tank arrangement Download PDFInfo
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- CN104058312B CN104058312B CN201410251713.5A CN201410251713A CN104058312B CN 104058312 B CN104058312 B CN 104058312B CN 201410251713 A CN201410251713 A CN 201410251713A CN 104058312 B CN104058312 B CN 104058312B
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- 229910000831 Steel Inorganic materials 0.000 description 7
- 230000009471 action Effects 0.000 description 7
- 238000013016 damping Methods 0.000 description 7
- 230000035939 shock Effects 0.000 description 7
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- 230000007306 turnover Effects 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
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- 238000005516 engineering process Methods 0.000 description 1
- -1 if mine is darker Substances 0.000 description 1
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- 238000011176 pooling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention discloses a kind of limiter two release lock tank arrangement, comprise tooth bar (1), support frame (2), transmission gear (3), lock gear (4), support link mechanism (5), drive oil cylinder (6), chain wheel driving mechanism (7) and locked cylinder (8), tooth bar is fixedly connected on cage (9); Support frame is framed structure, arranges corresponding to rack position, and transmission gear, lock gear, support link mechanism, driving oil cylinder, chain wheel driving mechanism and locked cylinder are all arranged at support frame inside.This lock tank arrangement adopts the engagement system of gear, tooth bar, straight-line displacement is converted to circumferential displacement, then is converted to straight-line displacement through Chain conveyer, thus shorten cushion stroke, and then ensure that locked cylinder has enough cushion strokes; By the output lock tank power of the delivery pressure just adjustable lock gear end that regulates locked cylinder, can realize the dual-use function locking tank, steady tank, structure is relatively simple, and is convenient to I&M.
Description
Technical field
The present invention relates to a kind of lock tank arrangement, specifically a kind of limiter two release lock tank arrangement, be common to mine vertical shaft well head, shaft bottom and by-level, the device with lock function, the elongation of energy effective compensation hoisting rope of cage Nei Guiyu great lane outer rail alignment, belongs to coal mine machinery equipment field.
Background technology
Cage is during mine vertical shaft promotes, on, the necessary equipment of lower personnel and material, along with the development of China coal industry, the secondary vertical shaft hoisting of mine is gradually to deeply, heavy future development, namely the degree of depth is promoted more than 800 meters, promote gross weight more than 80 tons, cage is at loading, during unloading operation, because cage relies on rope traction, steel rope is magnetic substance, if mine is darker, steel rope is longer, load change can be caused because of loading and unloading operation in cage, the i.e. change of hoisting cable end load, cause the elastic telescopic of steel rope, and then cause the upper and lower play of cage, steel rope is easily caused to skid and behaviour's vehicle device operating difficulties, special in upper, more outstanding during lower large part, even cause the accident, cage bounce-back also can make turnover mine car impact cage guide, and cause cage guide to be out of shape or damage, increase maintenance workload, be degrading handling conditions, particularly change layer for laminated vessel, this phenomenon is more obvious.
Therefore under present mine, the general lock tank arrangement that adopts carries out locking and Change of absorption load to cage when carrying out handling labor, avoids accident to occur.
Lock tank arrangement is a kind of Tank-supporting device having pooling feature and also cage can be kept stable, cage lock conventional at present during domestic vertical cage promotes is canned is equipped with cage chair, tank machine, self compensation holder tank cage chair etc., these traditional lock tank arrangements can realize the function of locking tank and steady tank, but also there is the defect of following three aspects:
1. because lock tank arrangement cushion stroke is shorter, and the impact of the factor such as the elastic elongation of steel rope, stop tank impact phenomenon ubiquity, during the potential safety hazard such as slack rope, abseiling, have existence;
2., during mine car turnover cage, can produce impact, make cage wigwag motion, the steel rope elastic elongation that load variations causes can make the upper and lower play of cage, and mine car easily slides down;
3. independent catching device solves the problem of the steady bearing container of general degree of depth mine, but can not meet the requirement of the steady tank of safety in dark vertical shaft hoisting, need add steady tank arrangement and make complicated integral structure, be not easy to installation and maintenance.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides a kind of limiter two release lock tank arrangement, structure is simple, can realize the function of locking tank and steady tank, and be convenient to be installed on maintenance.
To achieve these goals, this limiter two release lock tank arrangement comprises tooth bar, support frame, transmission gear, lock gear, support link mechanism, drives oil cylinder, chain wheel driving mechanism and locked cylinder;
Tooth bar is fixed on cage;
Support frame is framed structure;
Transmission gear is located at support frame inside by drive shaft mount, and lock gear is erected at support frame inside by gear wheel shaft, and lock gear is connected with transmission gear by support link mechanism, and transmission gear engages with lock gear, and locking teeth wheel and rack engages;
Support link mechanism comprises lock gear strut bar, connecting rod I and connecting rod II, lock gear strut bar one end and transmission shaft hinged, the gear wheel shaft of the other end and lock gear is hinged; The gear wheel shaft of connecting rod I one end and lock gear is hinged, the other end by swivel pin and connecting rod II one end hinged; Connecting rod II other end is articulated with the hinged seat I be fixedly connected with support frame;
Drive oil cylinder one end by swivel pin and connecting rod I and connecting rod II hinged, the other end is articulated with the hinged seat II be fixedly connected with support frame;
Chain wheel driving mechanism comprises drive sprocket, driven sprocket, chain and chain guide rail, and drive sprocket is arranged on transmission shaft, with transmission gear synchronous axial system; Driven sprocket is erected at support frame inside by sprocket shaft; Chain is wound around and is arranged on drive sprocket and driven sprocket; Chain guide rails assembling on the chain between drive sprocket and driven sprocket, and is fixedly connected with chain, and chain guide rail is provided with the hinged seat III be fixedly connected with it;
Locked cylinder cylinder body is set up in support frame inside by hinged seat IV, and piston end and the hinged seat III of locked cylinder are hinged.
Scheme as a further improvement on the present invention, is provided with chain stretching device between described support frame and the sprocket shaft of driven sprocket.
Scheme as a further improvement on the present invention, after described driving oil cylinder stretches out completely, the center of its swivel pin exceedes the hinged dead point of connecting rod I and connecting rod II, namely, after driving oil cylinder to stretch out completely, the vertical distance at center to the hinged center of hinged seat II of swivel pin is greater than the vertical distance at axle center to the hinged center of hinged seat II of gear wheel shaft and the vertical distance at hinged center to the hinged center of hinged seat II of hinged seat I.
Scheme as a further improvement on the present invention, described support frame inside corresponds to connecting rod I and arranges with the position of connecting rod II hinge point the limiting stopper be fixedly connected with support frame, and limiting stopper surface is provided with cushion layer.
Scheme as a further improvement on the present invention, described locked cylinder, hinged seat IV and chain guide rail are all set to two pieces, and the axle line of centres being symmetrical in drive sprocket and driven sprocket is respectively arranged.
Scheme as a further improvement on the present invention, the position of the corresponding tooth bar in the top of described support frame and bottom arranges guide plate.
Compared with prior art, this limiter two release lock tank arrangement is owing to adopting the engagement system of gear, tooth bar, the straight-line displacement of cage is converted to the circumferential displacement of transmission gear, the straight-line displacement of locked cylinder piston is converted to again through Chain conveyer, thus shorten cushion stroke, and then ensure that locked cylinder has enough cushion strokes; When stopping tank, can continue to stretch out because driving oil cylinder not reach end of run after contacting with tooth bar in the process that transmission gear stretches out, till driving cog wheel and rack engages completely, in its engagement process, namely drive oil cylinder when not ejecting completely, namely its shock damping action plays the effect that buffering stops tank impulsive force, therefore, it is possible to avoid the generation stopping tank impact phenomenon, and cage can be made steady rapidly, after driving oil cylinder to eject completely, drive the shock damping action of oil cylinder to absorb impulsive force, realize steady tank function; Locking after tank arrangement installs due to the two release of this limiter is be symmetrical in cage to arrange, symmetrically arranged lock gear engages with symmetrically arranged tooth bar simultaneously and realizes locking cage, can not make cage wigwag motion during mine car turnover cage after locking cage, ensure steady tank effect, mine car is not easy to slide down; Owing to adopting engaging structure mode and the chain-drive frame mode of gear, tooth bar, and by the output lock tank power of the delivery pressure just adjustable lock gear end that regulates locked cylinder, therefore the function using this limiter two release lock tank arrangement can complete lock tank, steady tank is achieved, structure is relatively simple, and is convenient to I&M.
Accompanying drawing explanation
Fig. 1 is the structural representation of lock gear of the present invention when not stretching out;
Fig. 2 is the back view of Fig. 1;
Fig. 3 is the structural representation of lock gear of the present invention when stretching out rear locking cage;
Fig. 4 is the structural representation of the present invention when adopting two cover locked cylinders;
Fig. 5 is scheme of installation of the present invention.
In figure: 1, tooth bar, 2, support frame, 2.1, limiting stopper, 2.2, guide plate, 3, transmission gear, 3.1, transmission shaft, 4, lock gear, 4.1, gear wheel shaft, 5, support link mechanism, 5.1, lock gear strut bar, 5.2, connecting rod I, 5.3, connecting rod II, 5.4, hinged seat I, 6, drive oil cylinder, 6.1, swivel pin, 6.2, hinged seat II, 7, chain wheel driving mechanism, 7.1, drive sprocket, 7.2, driven sprocket, 7.3, chain, 7.4, chain guide rail, 7.5, sprocket shaft, 7.6, hinged seat III, 8, locked cylinder, 8.1, hinged seat IV, 9, cage.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1 and Figure 2, this limiter two release lock tank arrangement comprises tooth bar 1, support frame 2, transmission gear 3, lock gear 4, support link mechanism 5, drives oil cylinder 6, chain wheel driving mechanism 7 and locked cylinder 8.
Tooth bar 1 is fixed on cage 9.
Support frame 2 is framed structures.
It is inner that transmission gear 3 is erected at support frame 2 by transmission shaft 3.1, it is inner that lock gear 4 is erected at support frame 2 by gear wheel shaft 4.1, lock gear 4 is connected with transmission gear 3 by support link mechanism 5, transmission gear 3 engages with lock gear 4, lock gear 4 engages with tooth bar 1, the mode that transmission gear 3 can be connected by key and transmission shaft 3.1 are installed, and it is inner that transmission shaft 3.1 can be erected at support frame 2 by bearing seat.
Support link mechanism 5 comprises lock gear strut bar 5.1, connecting rod I 5.2 and connecting rod II 5.3, lock gear strut bar 5.1 one end and transmission shaft 3.1 hinged, the gear wheel shaft 4.1 of the other end and lock gear 4 is hinged, and lock gear 4 can be rotated around transmission shaft 3.1 center and transmission gear 3 gears meshing; The gear wheel shaft 4.1 of connecting rod I 5.2 one end and lock gear 4 is hinged, and the other end is hinged by swivel pin 6.1 and connecting rod II 5.3 one end; Connecting rod II 5.3 other end is articulated with the hinged seat I 5.4 be fixedly connected with support frame 2.
Drive oil cylinder 6 one end to pass through swivel pin 6.1 and connecting rod I 5.2 and connecting rod II 5.3 hinged, the other end is articulated with the hinged seat II 6.2 be fixedly connected with support frame 2.
Chain wheel driving mechanism 7 comprises drive sprocket 7.1, driven sprocket 7.2, chain 7.3 and chain guide rail 7.4, drive sprocket 7.1 is arranged on transmission shaft 3.1,, synchronous axial system coaxial with transmission gear 3, the mode that drive sprocket 7.1 can be connected by the key identical with transmission gear 3 and transmission shaft 3.1 are installed, or employing and transmission gear 3 are made of one structure, to ensure coaxial, synchronous axial system; It is inner that driven sprocket 7.2 is erected at support frame 2 by sprocket shaft 7.5; Chain 7.3 is wound around and is arranged on drive sprocket 7.1 and driven sprocket 7.2; Chain guide rail 7.4 is arranged on the chain 7.3 between drive sprocket 7.1 and driven sprocket 7.2, and is fixedly connected with chain 7.3, and chain guide rail 7.4 is provided with the hinged seat III 7.6 be fixedly connected with it.
It is inner that locked cylinder 8 cylinder body is set up in support frame 2 by hinged seat IV 8.1, and piston end and the hinged seat III 7.6 of locked cylinder 8 are hinged.
As shown in Figure 5, this limiter two release lock tank arrangement at least needs to arrange two groups when mounted, be symmetricly set in cage 9 around, after integral installation is good, after cage 9 is in place, as shown in Figure 3, hydraulic efficiency pressure system starts, oil cylinder 6 piston end is driven to eject, promote support link mechanism 5 to make connecting rod I 5.2 and connecting rod II 5.3 move, so promote lock gear 4 around transmission shaft 3.1 center and transmission gear 3 gears meshing and rotate, self-supporting frame 2 inside stretches out, and snaps in tooth bar 1 interior and engage completely with tooth bar 1, realize locking cage 9, prevent cage 9 wigwag motion.
After cage 9 is in place, particularly mine is darker, when load is larger, cage 9 can make steel rope elastic elongation and upper and lower play because of inertia, hydraulic efficiency pressure system starts, drive oil cylinder 6 to eject promotion transmission gear 4 to stretch out, owing to driving oil cylinder 6 piston end not eject completely after transmission gear 4 contacts with tooth bar, transmission gear 4 can continue to stretch out, till engaging completely, in its engagement process, drive oil cylinder 6 piston end when not ejecting completely, while continuing to eject, its shock damping action plays the function that buffering stops tank impulsive force, therefore, it is possible to avoid the generation stopping tank impact phenomenon, and cage 9 can be made rapidly steadily.
When cage 9 impacts because producing during mine car turnover cage, when making cage 9 dandle, the impulsive force that cage 9 produces passes to the lock gear 4 engaged with tooth bar 1 by tooth bar 1, impulsive force can be passed to two-way by lock gear 4:
When cage 9 upwards play time, impulsive force to be passed to by support link mechanism 5 and drives oil cylinder 6 by lock gear 4, by driving the shock damping action of oil cylinder 6 to absorb impulsive force, realizes steady tank function;
When the downward play of cage 9, impulsive force is passed to transmission gear 3 by gears meshing by lock gear 4, transmission gear 3 is made to rotate circumferential movement along transmission shaft 3.1 axle center, and then drive chain wheel driving mechanism 7 to make chain 7.3, chain guide rail 7.4 moves linearly, finally by hinged seat III 7.6, impulsive force is passed to locked cylinder 8, impulsive force is absorbed by the shock damping action of locked cylinder 8, realize steady tank function, thus realize two release absorption impulsive force, ensure that cage 9 is without beating, turnover mine car is steady, not easily slide down, the size of the delivery pressure of locked cylinder 8, namely tank power is locked, by chain wheel driving mechanism 7 and transmission gear 3, acting in opposition is in lock gear 4, by regulating the size of the output lock tank power of stool and urine adjustable lock gear 4 end of the delivery pressure of locked cylinder 8.
This limiter two release lock tank arrangement is after the work of lock tank completes, the delivery pressure of locked cylinder 8 is regulated to set a maximum lock tank power according to the maximum gross power of cage bearing goods, maximum lock tank power is far smaller than the tractive force limit of hoisting wirerope, realize the object of limiter, when making the hoisting force of cage be greater than this maximum lock tank power because of maloperation or other reasons when winding cage (namely lock the undissolved situation of tank power under), locked cylinder 8 meeting Self-tipping, lock tank power disappears, hydraulic system pressure sensor can send alerting signal simultaneously, alert operator makes lock tank arrangement reset, now cage can directly promote, ensure safe operation.
After mine car enters, when needing to promote, hydraulic efficiency pressure system starts again, and locked cylinder 8 discharges lock tank power, then drives oil cylinder 6 piston end to retract, and drive lock gear 4 to drop back return, namely unlock state, winding cage.
Because this limiter two release lock tank arrangement is the transmission adopting chain-drive mode to carry out impulsive force, therefore in order to ensure the validity transmitting impulsive force, prevent from even not transmitting because the loosening power of impacting of chain 7.3 is not delivered to position, scheme as a further improvement on the present invention, is provided with chain stretching device between described support frame 2 and the sprocket shaft 7.5 of driven sprocket 7.2.
Generally, the impulsive force of the downward play of cage 9 will be far longer than the impulsive force of upwards play, in order to the inner space of Appropriate application support frame 2, and ensure cage 9 upwards play time locking effect, scheme as a further improvement on the present invention, as shown in Figure 3, after described driving oil cylinder 6 stretches out completely, the center of its swivel pin 6.1 exceedes the hinged dead point of connecting rod I 5.2 and connecting rod II 5.3, namely, after driving oil cylinder 6 to stretch out completely, the vertical distance at center to the hinged center of hinged seat II 6.2 of swivel pin 6.1 is greater than the vertical distance at axle center to the hinged center of hinged seat II 6.2 of gear wheel shaft 4.1 and the vertical distance at hinged center to the hinged center of hinged seat II 6.2 of hinged seat I 5.4, such setting, oil cylinder 6 is driven just only to play the effect ejecting lock gear 4, no longer play the effect of braking absorption impulsive force, therefore drive oil cylinder 6 to make cylinder diameter can suitably reduce, reduce space hold, when cage 9 upwards play time, lock gear 4 is hit power along transmission shaft 3.1 center clickwise, the hinge point of connecting rod I 5.2 and connecting rod II 5.3 is against on support frame 2, limit the displacement of lock gear 4, therefore lock gear 4 original place rotation, impulsive force is passed to transmission gear 3, as mentioned above, impulsive force is absorbed by the shock damping action of locked cylinder 8, realize steady tank function.
In order to cage 9 upwards play time ensure better to move after buffering and restriction lock gear 4; protect the hinge point of connecting rod I 5.2 and connecting rod II 5.3 simultaneously; scheme as a further improvement on the present invention; described support frame 2 inside corresponds to connecting rod I 5.2 and arranges with the position of connecting rod II 5.3 hinge point the limiting stopper 2.1 be fixedly connected with support frame 2, and limiting stopper 2.1 surface is provided with cushion layer.
In order to increase the effect of the braking absorption impulsive force of locked cylinder 8, ensure steady tank ability, scheme as a further improvement on the present invention, as shown in Figure 4, described locked cylinder 8, hinged seat IV 8.1 and chain guide rail 7.4 are all set to two pieces, the axle line of centres being symmetrical in drive sprocket 7.1 and driven sprocket 7.2 is respectively arranged, when absorbing impulsive force, one is subject to traction force, and another is by thrust pressure simultaneously, two locked cylinders 8 shock damping action simultaneously, realizes better impulsive force assimilation effect.
Locate rapidly when arriving stop position to enable cage 9, scheme as a further improvement on the present invention, the position of the corresponding tooth bar 1 in the top of described support frame 2 and bottom arranges guide plate 2.2, guide plate 2.2 to support frame 2 direction lopsidedness, can enter tram for guiding tooth bar 1.
This limiter two release lock tank arrangement can ensure that locked cylinder 8 has enough cushion strokes; The generation stopping tank impact phenomenon can be avoided, and cage 9 can be made rapidly steadily; Can not make cage wigwag motion during mine car turnover cage after locking cage 9, ensure steady tank effect, mine car is not easy to slide down; Use this limiter two release lock tank arrangement can complete the function of lock tank, steady tank, structure is relatively simple, and is convenient to I&M.
Claims (6)
1. limiter two release lock tank arrangement, comprise support frame (2) and locked cylinder (8), support frame (2) is framed structure; It is inner that locked cylinder (8) cylinder body is set up in support frame (2) by hinged seat IV (8.1),
It is characterized in that, also comprise tooth bar (1), transmission gear (3), lock gear (4), support link mechanism (5), drive oil cylinder (6) and chain wheel driving mechanism (7);
Tooth bar (1) is fixed on cage (9);
It is inner that transmission gear (3) is erected at support frame (2) by transmission shaft (3.1), it is inner that lock gear (4) is erected at support frame (2) by gear wheel shaft (4.1), lock gear (4) is connected with transmission gear (3) by support link mechanism (5), transmission gear (3) engages with lock gear (4), and lock gear (4) engages with tooth bar (1);
Support link mechanism (5) comprises lock gear strut bar (5.1), connecting rod I (5.2) and connecting rod II (5.3), lock gear strut bar (5.1) one end and transmission shaft (3.1) hinged, the gear wheel shaft (4.1) of the other end and lock gear (4) is hinged; The gear wheel shaft (4.1) of connecting rod I (5.2) one end and lock gear (4) is hinged, and the other end is hinged by swivel pin (6.1) and connecting rod II (5.3) one end; Connecting rod II (5.3) other end is articulated with the hinged seat I (5.4) be fixedly connected with support frame (2);
Drive oil cylinder (6) one end to pass through swivel pin (6.1) and connecting rod I (5.2) and connecting rod II (5.3) hinged, the other end is articulated with the hinged seat II (6.2) be fixedly connected with support frame (2);
Chain wheel driving mechanism (7) comprises drive sprocket (7.1), driven sprocket (7.2), chain (7.3) and chain guide rail (7.4), and drive sprocket (7.1) is arranged on transmission shaft (3.1), with transmission gear (3) synchronous axial system; It is inner that driven sprocket (7.2) is erected at support frame (2) by sprocket shaft (7.5); Chain (7.3) is wound around and is arranged on drive sprocket (7.1) and driven sprocket (7.2); Chain guide rail (7.4) is arranged on the chain (7.3) that is positioned between drive sprocket (7.1) and driven sprocket (7.2), and is fixedly connected with chain (7.3), and chain guide rail (7.4) is provided with the hinged seat III (7.6) be fixedly connected with it;
Piston end and the hinged seat III (7.6) of described locked cylinder (8) are hinged.
2. limiter according to claim 1 two release lock tank arrangement, is characterized in that, be provided with chain stretching device between described support frame (2) and the sprocket shaft (7.5) of driven sprocket (7.2).
3. limiter according to claim 1 and 2 two release lock tank arrangement, it is characterized in that, after described driving oil cylinder (6) stretches out completely, the center of its swivel pin (6.1) exceedes the hinged dead point of connecting rod I (5.2) and connecting rod II (5.3), namely, after driving oil cylinder (6) to stretch out completely, the vertical distance at center to the hinged center of hinged seat II (6.2) of swivel pin (6.1) is greater than the vertical distance at axle center to the hinged center of hinged seat II (6.2) of gear wheel shaft (4.1) and the vertical distance at hinged center to the hinged center of hinged seat II (6.2) of hinged seat I (5.4).
4. limiter according to claim 3 two release lock tank arrangement, it is characterized in that, described support frame (2) inside corresponds to connecting rod I (5.2) and arranges with the position of connecting rod II (5.3) hinge point the limiting stopper (2.1) be fixedly connected with support frame (2), and limiting stopper (2.1) surface is provided with cushion layer.
5. limiter according to claim 1 and 2 two release lock tank arrangement, it is characterized in that, described locked cylinder (8), hinged seat IV (8.1) and chain guide rail (7.4) are all set to two pieces, and the axle line of centres being symmetrical in drive sprocket (7.1) and driven sprocket (7.2) is respectively arranged.
6. limiter according to claim 1 and 2 two release lock tank arrangement, is characterized in that, the position of the corresponding tooth bar (1) in the top of described support frame (2) and bottom arranges guide plate (2.2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410251713.5A CN104058312B (en) | 2014-06-09 | 2014-06-09 | A kind of limiter two release lock tank arrangement |
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| CN201410251713.5A CN104058312B (en) | 2014-06-09 | 2014-06-09 | A kind of limiter two release lock tank arrangement |
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| CN104058312B true CN104058312B (en) | 2016-03-30 |
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| CN105883524A (en) * | 2014-12-29 | 2016-08-24 | 丁雪强 | Elevator working method capable of preventing dropping of elevator |
| CN104477726B (en) * | 2014-12-29 | 2016-10-05 | 龚柱 | The method for designing of the anti-fall unit of elevator |
| CN104627771B (en) * | 2014-12-29 | 2016-10-05 | 龚柱 | The method for designing of anti-fall elevator |
| CN113120734B (en) * | 2021-04-22 | 2024-03-12 | 日照柳海石油化工有限公司 | Mine tank baffle capable of ensuring synchronous sliding of two sides |
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| Title |
|---|
| ZHT-B型双补锁罐摇台在摩擦提升矿井中的应用研究;马锋，贾福音;《煤矿机械》;20120727;第33卷(第7期);第217-218页 * |
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| Publication number | Publication date |
|---|---|
| CN104058312A (en) | 2014-09-24 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A limited force dual release lock tank device Granted publication date: 20160330 Pledgee: Bank of China Limited by Share Ltd. Xuzhou Copper Mt branch Pledgor: XUZHOU SUNSHINE SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2024320000008 |
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