Device for preventing hoisting rope from flying in disorder during deck mechanical operation
Technical Field
The invention belongs to the technical field of deck operation safety, and particularly relates to a device for preventing a hoisting rope from flying in disorder during deck mechanical operation.
Background
At present, the development of the related technology for preventing the hoisting rope from flying in disorder during deck mechanical operation does not form a complete system, and a complete solution cannot be taken out. Some are only staying in the theoretical stage, and some solutions are passive avoidance.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a device for preventing the random flying of the hoisting rope in deck mechanical operation, which can greatly reduce the random flying range of the random flying rope, help to recover the broken rope, realize the active control of the random flying rope and solve the problem of deck safety caused by the random flying of the hoisting rope due to breakage.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a deck mechanical operation hoisting rope anti-flying device comprises a brake, wherein the brake comprises a shell, and a speed measuring module, a motor control module and a brake module which are arranged in the shell; a rope traction inlet and a rope traction outlet for a rope to pass through are respectively arranged at the two ends of the shell; the speed measuring module comprises two speed measuring wheels and a rotating speed sensor which are arranged in parallel, a gap for the rope to pass through is reserved between the speed measuring wheels, and the rotating speed sensor is used for measuring the rotating speed of the speed measuring wheels and transmitting signals to the motor control module; the brake module comprises a brake disc, brake bars, a fixed sleeve and a torque spring, the brake disc is rotatably arranged at one end of the fixed sleeve, the two parallel brake bars are arranged on the brake disc, a gap for a rope to pass through is reserved between the two brake bars, the torque spring is arranged in the fixed sleeve, one end of the torque spring is fixed on the inner wall of the fixed sleeve, the other end of the torque spring is fixed on the inner wall of the brake disc, and the torque spring is in a pre-tightening state; the motor control module comprises a relay, a motor, a gear and a rack, the relay is connected with the rotating speed sensor through a signal output line, the starting of the motor is controlled according to the rotating speed, the gear is arranged at the output end of the motor, and the rack is meshed with the gear; the rope passes through the rope traction inlet, the two speed measuring wheels, the two brake rods and the rope traction outlet in sequence, when a speed signal measured by the rotating speed sensor exceeds a threshold value, the relay is connected with the loop to control the motor to rotate, the gear on the motor drives the rack to move, and the pre-tightened torque spring is released, so that torque is applied to the brake disc to brake and recover the falling rope.
In the scheme, the inner wall of the brake disc is provided with a disc surface limiting column, and when a control loop of the motor is not switched on, the end part of the rack extends into the fixed sleeve to be abutted against the disc surface limiting column; and after the control circuit of the motor is switched on, the end part of the rack leaves the disk surface limiting column, and the torque spring is released.
In the above scheme, a boss is arranged in the fixed sleeve, a rotation stop block is arranged on the boss, and the rotation stop block is located in the rotation direction of the torque spring and used for limiting the rotation displacement of the disc surface limiting column to enable the brake disc to rotate for a set angle.
In the above scheme, a plurality of stop block clamping grooves are arranged on the boss at intervals along the rotation direction of the torque spring, and the rotary stop block is inserted into one of the stop block clamping grooves.
In the above scheme, the inner wall of the fixing sleeve is provided with a lower end fixing groove, the inner wall of the brake disc is provided with a disc surface fixing groove, and two ends of the torque spring are respectively fixed in the lower end fixing groove and the disc surface fixing groove.
In the above scheme, the brake module further comprises a base bearing and a brake disc supporting shaft, the brake disc supporting shaft is located inside the fixed sleeve, the upper end of the brake disc supporting shaft is fixedly connected with the inner wall of the brake disc, and the lower end of the brake disc supporting shaft is rotatably connected with the outer shell through the base bearing.
In the above scheme, the speed measuring module further includes a speed measuring wheel base, a speed measuring rotating shaft, and a speed measuring observation gear, the speed measuring wheel is rotatably mounted on the speed measuring wheel base through a speed measuring wheel bearing, the speed measuring rotating shaft is coaxially mounted with the speed measuring wheel and is located in the speed measuring wheel base, and the speed measuring observation gear is mounted on the speed measuring rotating shaft; the rotating speed sensor adopts a Hall gear rotating speed sensor and is arranged on one side of the speed measurement observation gear.
In the above scheme, the module of testing the speed still including setting up the straining spring between two speed-measuring wheels, the rope of different specifications compresses tightly the rope through straining spring is automatic, drives the speed-measuring wheel rotation when making the rope slide.
In the above scheme, deck mechanical working hoist rope prevents in disorder device that flies still includes stopper slide rail base, stopper slide rail base includes unable adjustment base, sliding bottom, lift double-screw bolt, unable adjustment base fixed mounting is on rope traction support, sliding bottom installs in unable adjustment base's bottom surface, and sliding bottom can slide along rope length direction relative fixity base in order to adjust the relative position, the stopper passes through the lift double-screw bolt and is connected with the sliding bottom surface to can adjust the interval with sliding bottom through the lift double-screw bolt.
In the scheme, the deck mechanical operation hoisting rope anti-flying device further comprises a limiting ring and a limiting ring slide rail base, wherein the limiting ring slide rail base comprises a fixed base and a sliding base, the fixed base is fixedly arranged on the rope traction support, the sliding base is arranged on the bottom surface of the fixed base, and the sliding base can slide relative to the fixed base along the length direction of the rope so as to adjust the relative position; the limiting ring is arranged on the bottom surface of the sliding base, and the rope penetrates through the limiting ring.
The invention has the beneficial effects that:
1. the brake of the invention controls the rotation of the micro motor by the relay of the motor control module, the gear on the motor drives the rack to move, the pre-tightened torque spring is released, the torque spring is adopted to provide the torque required by the braking rope, the use of a large motor is reduced, and the weight of the whole equipment is greatly reduced.
2. The rope breakage condition is judged to the rebound velocity that detects the fracture rope through speedtransmitter, and is too big when detecting motion rope speed, speedtransmitter output signal of telecommunication, and the relay control motor by motor control module rotates, and the gear on the motor drives the rack and removes, and the rack leaves the spacing post release of quotation and twists torsion spring tight in advance, has shortened rope fracture recovery unit's reaction time, makes the rope obtain control before causing the destruction. And the brake disc can only rotate a set angle under the limit of a set rotating stop block, so that the rope is prevented from being tangled due to overlarge rotating angle.
3. The distance between the speed measuring wheels and the distance between the brake levers are continuously adjustable, so that the speed measuring device can automatically adapt to various ropes with different specifications, and the application range is wide.
4. The limiting ring can be additionally arranged in front of the brake, the limiting ring can reduce the movement speed and the swing amplitude of a broken rope, and the risk of the broken rope is reduced.
5. The limiting ring and the brake are installed in a sliding mode, and can be conveniently detached and combined for use.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a perspective view of the internal structure of the housing of the brake of the present invention;
FIG. 2 is an exploded view of the partial structure of FIG. 1;
FIG. 3 is a schematic illustration of the connection of the brake disk of FIG. 1 to a torsion spring;
FIG. 4 is a front view of FIG. 1;
FIG. 5 is a sectional view taken along line A-A of FIG. 4;
FIG. 6 is a sectional view taken along line C-C of FIG. 4;
FIG. 7 is a housing structure view of the brake of the present invention;
FIG. 8 is a half-sectional structural view of the brake of the present invention;
FIG. 9 is a schematic view of the mounting of the brake shoe and the stop ring shoe of the present invention;
fig. 10 is a sectional view showing a state of use of the present invention.
In the figure: 10. a brake; 11. a housing; 111. a brake base; 1111. a housing connection hole; 1112. a slide rail connecting hole; 112. a housing; 1121. a rope traction entry; 1122. a groove; 1123. a bottom threaded hole; 1124. a rope pulling outlet; 12. a speed measuring module; 121. a tachometer wheel; 122. a tachometer wheel base; 123. a speed measuring rotating shaft; 124. a speed measuring observation gear; 125. a rotational speed sensor; 126. a signal output line; 127. a bearing of the speed measuring wheel; 128. tensioning the spring; 129. a sliding bottom groove of the speed measuring wheel; 13. a motor control module; 131. a relay; 132. an electric motor; 133. a gear; 134. a rack; 135. a power source; 14. a brake module; 141. a brake disc; 1411. a disk surface fixing groove; 1412. a disc surface limiting column; 142. a brake lever; 1421. a brake lever slider; 143. fixing the sleeve; 1431. a lower end fixing groove; 144. a torque spring; 145. a base bearing; 146. a brake disc support shaft; 147. rotating the stop block; 148. a stop block clamping groove;
20. a brake slide rail mount; 21. a fixed base; 22. a sliding base; 23. lifting the stud;
30. a limiting ring;
40. a limiting ring slide rail base.
200. A rope; 210. a rope traction support; 220. a pulley.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 8, the device for preventing a hoisting rope from flying around for deck machinery operation provided by the embodiment of the invention comprises a brake 10, and the broken falling rope is braked and recovered by the brake 10. The brake 10 includes a housing 11, and a speed measuring module 12, a motor control module 13 and a brake module 14 installed inside the housing 11. Wherein:
the housing 11 is a box-shaped structure assembled by the brake base 111 and the casing 112, and both ends of the casing 112 are respectively provided with a rope drawing inlet 1121 and a rope drawing outlet 1124 for passing a rope. The stopper base 111 is fixedly coupled to the housing 112 through the housing coupling hole 1111 and the bottom screw hole 1123. The housing 112 has a recess 1122 to facilitate the installation of the fixing screws and to improve the structural strength.
The speed measuring module 12 includes two speed measuring wheels 121, a speed measuring wheel base 122, a speed measuring rotating shaft 123, a speed measuring observation gear 124, a rotating speed sensor 125, and a signal output line 126, which are arranged in parallel. A gap for the rope to pass through is reserved between the two speed measuring wheels 121, a tension spring 128 is arranged between the two speed measuring wheels 121, and ropes of different specifications are automatically pressed through the tension spring 128, so that the speed measuring wheels 121 are driven to rotate when the ropes slide. The tachometer wheel 121 is mounted on the tachometer wheel base 122 through a tachometer wheel bearing 127, the tachometer rotating shaft 123 is coaxially mounted with the tachometer wheel 121 and is positioned in the tachometer wheel base 122, and the tachometer observation gear 124 is mounted on the tachometer rotating shaft 123; the rotation speed sensor 125 is a hall gear rotation speed sensor and is installed on one side of the speed measurement observation gear 124, and the rotation speed sensor 125 measures the rotation speed of the speed measurement wheel 121 and transmits a signal to the motor control module 13. The bottom of the velocity measuring wheel base 122 is provided with a velocity measuring wheel sliding bottom groove 129, and the lower end of the velocity measuring rotating shaft 123 is positioned in the velocity measuring wheel sliding bottom groove 129 and can move along the velocity measuring wheel sliding bottom groove 129.
The brake module 14 includes a brake disc 141, a brake lever 142, a fixing sleeve 143, and a torque spring 144. The fixed sleeve 143 is fixedly installed on the brake base 111, and the brake disc 141 is rotatably installed at one end of the fixed sleeve 143. Two parallel brake levers 142 are mounted on the brake disc 141 with a gap in between for the rope 200 to pass through and the gap is adjustable to accommodate different sizes of rope. The torque spring 144 is installed inside the fixed sleeve 143, one end of the torque spring 144 is fixed on the inner wall of the fixed sleeve 143, and the other end is fixed on the inner wall of the brake disc 141, and is pre-tightened when loaded, and is in a pre-tightened state, and when triggered, the torque spring can provide a larger torque for the brake disc 141.
The motor control module 13 comprises a relay 131, a motor 132, a gear 133, a rack 134 and a power supply 135, wherein the relay 131 is connected with the rotating speed sensor 125 through a signal output line 126, the starting of the motor 132 is controlled according to the magnitude of a measured rotating speed signal, the gear 133 is arranged at the output end of the motor 132, and the rack 134 is meshed with the gear 133. The rope 200 sequentially passes through the rope drawing inlet 1121, the two tachometers 121, the two brake levers 142, and the rope drawing outlet 1124, when the speed signal detected by the rotation speed sensor 125 exceeds a threshold value, the relay 131 connects the circuit between the motor 132 and the power source 135 to rotate the motor 132, the gear 133 on the motor 132 drives the rack 134 to move, the pre-tightened torque spring 144 is released, and thus, torque is applied to the brake disc 141, the brake disc 141 rotates to drive the brake lever 142 to rotate to brake and recover the dropping rope. The power source 135 supplies power to both the relay 131 and the rotation speed sensor 125, and the power source 135 is preferably a battery.
Further preferably, a lower end fixing groove 1431 is formed in the inner wall of the fixing sleeve 143, a disc surface fixing groove 1411 is formed in the inner wall of the brake disc 141, and two ends of the torque spring 144 are respectively fixed in the lower end fixing groove 1431 and the disc surface fixing groove 1411.
Further optimization, the inner wall of the brake disc 141 is provided with a disc surface limiting column 1412, and when the control circuit of the motor 132 is not switched on, the end part of the rack 134 extends into the fixing sleeve 143 to abut against the disc surface limiting column 1412; after the control circuit of the motor 132 is connected, under the driving of the gear 133, the end of the rack 134 leaves the disc surface spacing column 1412, the pre-tightened torque spring 144 is released, and the brake disc 141 is driven to rotate to achieve the effect of rope braking.
Further preferably, a boss is arranged in the fixing sleeve 143, a rotating stopper 147 is arranged on the boss, and the rotating stopper 147 is located in the rotation direction of the torque spring 144 and used for limiting the rotation displacement of the disc surface limiting column 1412, so that the brake disc 141 rotates by a set angle, and the rope is prevented from being tangled due to an overlarge rotation angle.
Preferably, a plurality of stopper slots 148 are arranged on the boss at intervals along the rotation direction of the torque spring 144, and the rotation stopper 147 is inserted into one of the stopper slots 148.
Further preferably, the brake module 14 further includes a base bearing 145 and a brake disc support shaft 146, the brake disc support shaft 146 is located inside the fixed sleeve 143, the upper end of the brake disc support shaft 146 is fixedly connected with the inner wall of the brake disc 141 through interference fit, and the lower end of the brake disc support shaft is rotatably connected with the housing 11 through the base bearing 145. The brake disk 141 can be reliably rotated without being ejected by providing the brake disk support shaft 146.
Further preferably, the bottom end of the brake bar 142 is provided with a brake bar sliding block 1421, and the brake disc 141 is provided with a sliding groove adapted to the brake bar sliding block 1421. The brake lever slide 1421 is movable along the slide channel to adjust the distance between the two brake levers 142 to accommodate different sizes of cables. The brake lever slider 1421 is screwed into the brake lever 142 through a screw hole, and is fixed by screwing an excessive amount of a stud to increase the frictional force with the brake disk 141.
Further preferably, the deck machinery operation hoisting rope anti-flying device further comprises a brake sliding rail base 20, referring to fig. 9-10, the brake sliding rail base 20 comprises a fixed base 21, a sliding base 22 and a lifting stud 23, the fixed base 21 is fixedly installed on the rope traction support 210 in a welding mode, the sliding base 22 is installed on the bottom surface of the fixed base 21, the sliding base 22 can slide along the length direction of the rope relative to the fixed base 21 to adjust the relative position, and the fixed base and the sliding base adopt a stud butt joint mode to fix the relative position; the brake base 111 is provided with a slide rail connecting hole 1112, and the brake 10 is connected with the bottom surface of the sliding base 22 through a lifting stud 23, and the distance between the brake 10 and the sliding base 22 can be adjusted through the lifting stud 23.
Above-mentioned deck machinery operation hoist rope that contains stopper 10 prevents in disorder device that flies, its theory of operation: when the mechanical working hoisting rope is disconnected at the left side or the right side of the brake 10, the rebound speed exceeds the threshold value set by the rotating speed sensor 125, the rotating speed sensor 125 outputs a signal of a voltage pulse signal through the signal output line 126, the relay 131 is connected with a circuit between the power source 135 and the motor 132 to control the motor 132 to rotate, the gear 133 on the motor 132 drives the rack 134 to move, the pre-tightened torque spring 144 is released, and torque is applied to the brake disc 141 to brake and recover the dropping rope. And the brake disc 141 can only rotate a set angle under the limit of a set stopper, so that the rope is prevented from being tangled due to an overlarge rotation angle.
Further preferably, the deck machinery operation hoisting rope anti-flying device further comprises a limiting ring 30 and a limiting ring slide rail base 40, referring to fig. 9-10, the limiting ring slide rail base 40 comprises a fixed base 21 and a sliding base 22, the fixed base 21 is fixedly installed on a rope traction support 210, the sliding base 22 is installed on the bottom surface of the fixed base 21, the sliding base 22 can slide relative to the fixed base 21 along the length direction of the rope to adjust the relative position, and the fixed base and the sliding base adopt a stud butt joint mode to fix the relative position; the limiting ring 30 is installed on the bottom surface of the sliding base 22, the rope passes through the limiting ring 30, and the movement speed and the swing amplitude of the broken rope are limited by the limiting ring 30. The position of the stop collar 30 and the stopper 10 can be freely adjusted and the combination between the two can be changed.
Further optimized, the inner edge of the limit ring 30 is made of high-elasticity rubber material to absorb the energy caused by the swinging of the rope, and the diameter of the circular ring is properly set according to the length of the rope.
Above-mentioned deck machinery operation hoist rope that contains stopper 10 prevents in disorder device that flies, its theory of operation: when the mechanical operation hoisting rope is disconnected at one side of the limit ring 30, the disconnected part is swung in the limit ring 30 to be limited, and the rest part is applied with local torque and wound by the brake 10. Since the position of the rope 200 where it breaks is generally located at the pulley 220 (where the concentrated stress is the largest and the abrasion is also serious), the retainer ring 30 and the brake 10 are generally installed on the right side of the pulley 220 in this order (as shown in fig. 9), and the brake 10 is installed behind the retainer ring 30. According to the deck mechanical operation hoisting rope anti-flying device, the movement speed and the swing amplitude of a broken rope can be reduced through the limiting ring 30, and the risk of the broken rope is reduced; by means of the brake 10, the reaction time for recovering broken ropes is shortened, the ropes are controlled before being damaged, and the subsequent recovery process is simpler and more convenient.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.