CN114314358A - Electric hoist of single-beam crane - Google Patents
Electric hoist of single-beam crane Download PDFInfo
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- CN114314358A CN114314358A CN202111598846.6A CN202111598846A CN114314358A CN 114314358 A CN114314358 A CN 114314358A CN 202111598846 A CN202111598846 A CN 202111598846A CN 114314358 A CN114314358 A CN 114314358A
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- steel wire
- wire rope
- annular sleeve
- electric hoist
- beam crane
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 164
- 239000010959 steel Substances 0.000 claims abstract description 164
- 230000006698 induction Effects 0.000 claims abstract description 43
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- 238000004140 cleaning Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 26
- 230000008859 change Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 8
- 239000010687 lubricating oil Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000010008 shearing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The invention relates to the technical field of cranes, in particular to an electric hoist of a single-beam crane. Comprises a driving device, an alarm device and a steel wire rope; the steel wire rope is wound and fixedly connected in the driving device; the alarm device is used for alarming the function abnormity of the invention; further comprising: the sensing units are respectively sleeved on the two movable steel wire ropes and can detect the concave-convex degree of the surfaces of the steel wire ropes; the supporting module is positioned below the driving module and can enable the sensing unit to move; the controller is used for controlling the automatic operation of the electric hoist for the single-beam crane; according to the invention, the driving device drives the steel wire rope to move and the supporting unit to enable the induction unit to slide in a matching manner, so that the induction unit can displace according to the horizontal displacement of the steel wire rope, the situation that workers cannot judge the safety performance of the steel wire rope in real time is avoided, and the production practice can be facilitated.
Description
Technical Field
The invention relates to the technical field of cranes, in particular to an electric hoist of a single-beam crane.
Background
As a hoisting device, the electric hoist has the characteristics of small volume, light dead weight, simplicity in operation, convenience in use and the like, wherein the electric hoist for the single-beam crane is mainly used in a mechanical manufacturing workshop, and the single-beam crane is more convenient to use in the workshop, does not occupy the ground and does not obstruct the workshop manufacturing work.
In the prior art, the safety device of the electric hoist comprises an overload limiter, a moment limiter, a leakage protector, a lifting and descending limit position limiter and other safety devices; however, for the detection of the steel wire rope of the electric hoist, the quality of the steel wire rope is usually observed by a worker before the worker uses the electric hoist of the single-beam crane each time, although the quality of the steel wire rope can be simply judged by the observation method, the method is time-consuming and labor-consuming, when the height of the single-beam crane is too high, the worker cannot clearly observe the surface of the steel wire rope by eyes, and meanwhile, the method for regularly detecting the steel wire rope cannot detect the safety performance of the steel wire rope in real time, so that potential safety hazards still exist.
In view of this, in order to overcome the above technical problems, the present invention provides an electric hoist for a single-beam crane, which solves the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides the electric hoist of the single-beam crane, the driving device drives the steel wire rope to move, the supporting unit enables the induction unit to slide and be matched with the steel wire rope, the induction unit can move according to the horizontal displacement of the steel wire rope, and meanwhile, the safety performance of the steel wire rope can be detected in real time.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an electric hoist of a single-beam crane.
Comprises a driving device, an alarm device and a steel wire rope; the steel wire rope is wound and fixedly connected in the driving device; the alarm device is used for alarming the function abnormity of the invention;
further comprising:
the sensing units are respectively sleeved on the two movable steel wire ropes and can detect the concave-convex degree of the surfaces of the steel wire ropes;
the supporting module is positioned below the driving device and can enable the sensing unit to move;
and the controller is used for controlling the automatic operation of the electric hoist for the single-beam crane.
Preferably, the sensing unit comprises an annular sleeve, a spring, a sensing block and a pressure sensor; the annular sleeve is fixedly connected with the supporting module; the annular sleeve is sleeved on the steel wire rope; circular grooves are uniformly formed in the inner wall of the annular sleeve; the bottom of the circular groove is fixedly connected with a pressure sensor; one side of the pressure sensor, which is far away from the bottom of the circular groove, is fixedly connected with a spring; one end of the spring, which is far away from the bottom of the circular groove, is fixedly connected with an induction block; the induction block is protruded out of the round groove from the surface far away from the bottom of the round groove.
Preferably, the support module comprises a slide rail and a slide rod; the sliding rail is fixedly connected with the driving device, and a T-shaped groove is formed in the sliding rail and communicated with the outside of the sliding rail; the T-shaped groove is connected with a sliding rod in a sliding way; the sliding rod can slide in the T-shaped groove.
Preferably, the upper end of the sliding rail is fixedly connected with an oil injection box; the sliding rails are uniformly provided with pipelines; the T-shaped groove is communicated with the oil injection box through a pipeline.
Preferably, the annular sleeve can be split into two halves; the two half annular sleeves are connected through a first torsion spring; the torsion force of the first torsion spring is larger than the elastic force of the spring.
Preferably, the annular ring is sleeved outside the annular sleeve; the annular ring is connected with the sliding rod; the annular ring wraps and fixes the induction unit.
Preferably, the sliding rod is rotatably connected with the annular sleeve.
Preferably, two cleaning sheets are hinged above the annular sleeve; the cleaning sheet is rotationally connected through a second torsion spring.
Preferably, one end of the sliding rail is provided with an end cover; the end cap is located at the end of the T-shaped slot.
The invention has the following beneficial effects:
1. according to the invention, the driving device drives the steel wire rope to move and the supporting unit to enable the induction unit to slide in a matching manner, so that the induction unit can displace according to the horizontal displacement of the steel wire rope, and meanwhile, potential safety hazards caused by the fact that workers cannot judge the safety performance of the steel wire rope in real time are avoided, and thus the steel wire rope sliding device is more beneficial to production practice.
2. According to the invention, the driving unit controls the movement of the steel wire rope and the induction block extrudes the spring to be transmitted to the pressure sensor to be matched, so that when the surface of the steel wire rope is deformed or broken, the pressure sensor can transmit a signal to the controller, the step of observing the steel wire rope by naked eyes of a worker is reduced, the working efficiency of the worker is improved, and convenience is brought to the worker for controlling the hydraulic pressure type hydraulic pressure machine.
3. According to the invention, the annular sleeve is divided into two halves and connected through the first torsion spring, so that the annular sleeve can be opened in time without damaging the annular sleeve when passing through a deformed steel wire rope, the phenomenon that the annular sleeve is damaged when the annular sleeve meets the deformed steel wire rope is avoided, the structure of the steel wire rope is more rigorous, the practicability of the steel wire rope is improved, the steel wire rope is more reasonable, and the service life of the steel wire rope is prolonged.
Drawings
This is further explained below with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a cross-sectional view of a support unit and a sensing unit of the present invention;
FIG. 4 is an enlarged view at B in FIG. 3;
FIG. 5 is a cross-sectional view of another embodiment of the support unit and sensing unit of the present invention;
FIG. 6 is a cross-sectional view at the tubing of the present invention;
FIG. 7 is a graph of experimental data for the present invention;
in the figure: 1. a drive device; 2. a wire rope; 3. an end cap; 4. a support module; 41. a slide rail; 42. a slide bar; 43. a T-shaped slot; 44. an oil injection box; 45. a pipeline; 5. a sensing unit; 51. an annular sleeve; 52. a spring; 53. an induction block; 54. a pressure sensor; 55. a circular groove; 56. a bevel; 57. a first torsion spring; 6. a second torsion spring; 7. an annular ring; 8. a cleaning sheet.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 7, the electric hoist for the single-beam crane in the invention comprises a driving device 1, an alarm device and a steel wire rope 2; the steel wire rope 2 is wound and fixedly connected in the driving device 1; the alarm device is used for alarming the function abnormity of the invention;
further comprising:
the induction units 5 are respectively sleeved on the two movable steel wire ropes 2, and the induction units 5 can detect the concave-convex degree of the surfaces of the steel wire ropes 2;
a support module 4, wherein the support module 4 is positioned below the driving device 1, and the support module 4 can enable the sensing unit 5 to move;
and the controller is used for controlling the automatic operation of the electric hoist for the single-beam crane.
During working, the quality of the steel wire rope 2 is usually observed by a worker before the electric hoist of the single-beam crane is used each time, the method is time-consuming and labor-consuming although the quality of the steel wire rope 2 can be simply judged by the observation mode, and when the height of the steel wire rope 2 is too high, the worker cannot clearly observe the surface of the steel wire rope 2 by eyes, and meanwhile, the method for regularly detecting the steel wire rope 2 cannot detect the safety performance of the steel wire rope 2 in real time, and potential safety hazards still exist.
Therefore, when the invention is used by a worker, the worker opens the driving device 1 through the controller, the driver in the driving device 1 drives the two steel wire ropes 2 to rotate, the steel wire ropes 2 pass through the induction unit 5, under the pulling of the hook and gravity, the parts of the steel wire ropes 2 exposed out of the driving device 1 are straightened and slide in the induction unit 5, in the process of rotating the two steel wire ropes 2, the opening angle between the two steel wire ropes 2 changes along with the rotating amplitude, the induction unit 5 slides on the supporting unit while changing, when the induction unit 5 detects that the phenomena of residual fracture, damage or deformation and the like exist on the surface of the steel wire ropes 2, the induction unit 5 transmits signals to the controller, the controller controls the alarm device to work, the controller controls the driving device 1 to stop working, so that the steel wire ropes 2 stop moving, and then the worker evacuates irrelevant people to leave the site, and carrying out maintenance work on the electric hoist.
According to the invention, the driving device 1 drives the steel wire rope 2 to move and the supporting unit to enable the induction unit 5 to slide and be matched, so that the induction unit 5 can displace according to the horizontal displacement of the steel wire rope 2, and meanwhile, potential safety hazards caused by the fact that workers cannot judge the safety performance of the steel wire rope 2 in real time are avoided, and thus the invention is more beneficial to production practice.
As an embodiment of the present invention, the sensing unit 5 includes an annular sleeve 51, a spring 52, a sensing block 53, and a pressure sensor 54; the annular sleeve 51 is fixedly connected with the support module 4; the annular sleeve 51 is sleeved on the steel wire rope 2; the inner wall of the annular sleeve 51 is uniformly provided with circular grooves 55; the bottom of the circular groove 55 is fixedly connected with a pressure sensor 54; a spring 52 is fixedly connected to one side of the pressure sensor 54 away from the bottom of the circular groove 55; one end of the spring 52 far away from the bottom of the circular groove 55 is fixedly connected with an induction block 53; one side of the sensing block 53 away from the bottom of the circular groove 55 protrudes out of the circular groove 55.
When the steel wire rope 2 moves in the annular sleeve 51, the surface of the steel wire rope 2 is in contact with one surface, far away from the circular groove 55, of the sensing block 53, the steel wire rope 2 is usually formed by twisting a plurality of strands of thin steel wires together, so that the surface of the steel wire rope 2 usually has regular lines, the steel wire rope 2 is in contact with the sensing block 53, the sensing block 53 transmits pressure to the pressure sensor 54 through the spring 52, when the pressure sensor 54 presets the range of normal allowable fluctuation of the steel wire rope 2, when the pressure sensor 54 receives data outside the range of allowable fluctuation, the pressure sensor 54 transmits the information to the controller, the controller controls the alarm device to give an alarm and close the driving device 1, the steel wire rope 2 stops moving, and after people are evacuated, the workers overhaul the electric hoist;
according to the invention, the driving unit controls the movement of the steel wire rope 2 to be matched with the pressure sensor 54 transmitted by the sensing block 53 to the extrusion spring 52, so that when the surface of the steel wire rope 2 is deformed or broken, the pressure sensor 54 can transmit a signal to the controller, the step of observing the steel wire rope 2 by naked eyes of a worker is reduced, the working efficiency of the worker is improved, and convenience is brought to the worker for controlling the steel wire rope pressure-measuring device.
As an embodiment of the present invention, the support module 4 includes a slide rail 41 and a slide bar 42; the slide rail 41 is fixedly connected with the driving device 1, and a T-shaped groove 43 is formed in the slide rail 41 and communicated with the outside of the slide rail 41; the T-shaped groove 43 is connected with the sliding rod 42 in a sliding way; the slide bar 42 is slidable in the T-shaped groove 43.
When the device works, a worker opens the controller to control the driving mechanism to work, the driving mechanism extends the steel wire ropes 2 and moves towards two edges, so that the included angle between the two steel wire ropes 2 is enlarged, the lower sliding rod 42 is driven by the annular sleeve 51 to slide on the sliding rail 41, the situation that the numerical value of the pressure sensor 54 is wrong due to the fixed position of the annular sleeve 51 is avoided, the position of the annular sleeve 51 can be automatically adjusted according to the included angle between the two steel wire ropes 2, and the device is more precise and creative.
As an embodiment of the present invention, an oil filling box 44 is fixedly connected to the upper end of the slide rail 41; the slide rail 41 is internally and uniformly provided with a pipeline 45; a conduit 45 communicates the T-shaped slot 43 with the oil injection box 44.
When the oil injection box works, a worker injects lubricating oil into the oil injection box 44, the lubricating oil flows into the T-shaped groove 43 through the pipeline 45, so that the friction force between the sliding rod 42 and the T-shaped groove 43 is reduced, and when the annular sleeve 51 drives the sliding rod 42 to move, the force of the sliding rod 42 on the annular sleeve 51 is reduced, so that the numerical value measured by the pressure sensor 54 in the annular sleeve 51 is more accurate, the practical application effect of the oil injection box is further optimized, and the practical application effect of the oil injection box is improved.
According to the invention, the oil injection box 44 is arranged above the sliding rail 41, so that the oil injection box 44 can bring lubricating oil into the sliding rail 41, the friction force between the sliding rod 42 and the T-shaped groove 43 is reduced, the friction force is reduced in the process that the sliding rod 42 moves in the T-shaped groove 43, and meanwhile, the step that a worker manually adds the lubricating oil into the T-shaped groove 43 is omitted, so that the oil injection device is more convenient and more convenient, and convenience is brought to the worker for adding the lubricating oil.
As an embodiment of the present invention, the annular sleeve 51 may be split into two halves; the two half annular sleeves 51 are connected through a first torsion spring 57; the torsion force of the torsion spring number one 57 is larger than the elastic force of the spring 52.
When the steel wire rope 2-free anti-theft alarm works, the two steel wire ropes 2 move in the annular sleeve 51, when the annular sleeve 51 meets the position where the steel wire rope 2 deforms, the pressure sensor 54 of the annular sleeve 51 transmits data corresponding to the deformed steel wire rope 2 to the controller, the controller controls the alarm device to be started and controls the driving device 1 to stop working, at the moment, the steel wire rope still moves for a small distance under the action of inertia force in the driver, at the moment, when the deformed steel wire rope 2 passes through the annular sleeve 51, the two half annular sleeves 51 overcome the torsion force of the first torsion spring 57 to move outwards, after the deformed steel wire rope 2 moves to pass through the annular sleeve 51, the annular sleeve 51 enables the annular sleeve 51 to be closed under the action of the torsion force of the first torsion spring 57, and the steel wire rope 2 stops moving.
According to the invention, the annular sleeve 51 is divided into two halves and connected through the first torsion spring 57, so that the annular sleeve 51 can be opened in time without damaging the annular sleeve 51 when the annular sleeve 51 passes through the deformed steel wire rope 2, the phenomenon that the annular sleeve 51 is damaged when the deformed steel wire rope 2 is encountered is avoided, the structure of the invention is more rigorous, the practicability of the invention is improved, the invention is more reasonable, and the service life of the invention is prolonged.
As an embodiment of the present invention, the annular sleeve 51 is externally sleeved with an annular ring 7; the annular ring 7 is connected with the sliding rod 42; the induction unit 5 is wrapped and fixed by the annular ring 7.
When the steel wire rope 2 works, the steel wire rope 2 moves in the annular sleeve 51, after a deformed part of the steel wire rope 2 passes through the annular sleeve 51, the pressure sensor 54 in the annular sleeve 51 transmits data corresponding to the deformed steel wire rope 2 to the controller, the controller controls the alarm device to be started and controls the driving device 1 to stop working, at the moment, the inner part of the driver enables the steel wire rope to still move for a small distance under the action of inertia force, at the moment, the deformed steel wire rope 2 is in the annular sleeve 51 and clamps the annular sleeve 51, at the moment, the annular sleeve 51 overcomes the friction force between the deformed steel wire rope 2 and the induction block 53, the annular sleeve 51 and the annular ring 7 are separated from moving along with the steel wire rope 2, and after the inertia force of the driving device 1 disappears, the annular sleeve 51 and the steel wire rope 2 do not move any more.
According to the invention, the annular ring 7 is arranged outside the annular sleeve 51 through the steel wire rope 2, so that after the deformation part of the steel wire rope 2 passes through the annular sleeve 51 and extrudes the induction block 53, the alarm device rings and the driving device 1 is closed, and meanwhile, the annular sleeve 51 can be separated from the annular ring 7, so that the annular sleeve 51 is prevented from being damaged by the inertia force of the steel wire rope 2, the service life of the invention is prolonged, and the invention is more rigorous.
As an embodiment of the present invention, the sliding rod 42 is rotatably connected to the annular sleeve 51.
During operation, two wire rope 2 along with drive arrangement 1's change, its angle also can follow the change together, and annular cover 51 can follow the change according to two wire rope 2 angles and change the angle for wire rope 2, has avoided forming the shearing force between wire rope 2 and the response piece 53 in the annular cover 51 to the condition that influences pressure sensor 54 numerical value appears.
According to the invention, the sliding rod 42 is rotationally connected with the annular sleeve 51, so that the annular sleeve 51 can freely convert the angle according to the contact degree of the steel wire rope 2 in the using process of the steel wire rope, the steel wire rope 2 is prevented from forming shearing force between the steel wire rope 2 and the annular sleeve 51, and the final data transmission is influenced, thus the structure of the steel wire rope is optimized, and the steel wire rope is more reasonable.
As an embodiment of the present invention, the ends of the annular sleeve 51 are each provided with a bevel 56; the ramps 56 are each directed inwardly of the annular sleeve 51.
When the device works, when the deformed steel wire rope 2 passes through the annular sleeve 51, the deformed steel wire rope 2 moves towards the inside of the annular sleeve 51 along the inclined surface 56, after the buffer action of the inclined surface 56, the steel wire rope 2 extrudes the sensing block 53, the excessive deformation position of the steel wire rope 2 can also extrude the inner wall of the annular sleeve 51 to open the first torsion spring 57 on the annular sleeve 51, the sensing block 53 transmits force to the pressure sensor 54 through the spring 52, and the pressure sensor 54 transmits the force to the controller to give an alarm and close the driving device 1.
According to the invention, the inclined surface 56 is arranged, so that the deformed steel wire rope 2 passes through the buffering effect of the inclined surface 56 before passing through the induction block 53, and the condition that the deformed steel wire rope 2 is scratched with the annular sleeve 51 before passing through the annular sleeve 51, so that the annular sleeve 51 falls off from the sliding rod 42 to cause damage to the steel wire rope is avoided, the service life of the steel wire rope is further prolonged, and the structure of the steel wire rope is more rigorous.
As an embodiment of the invention, two cleaning sheets 8 are hinged above the annular sleeve 51; the cleaning sheet 8 is rotationally connected through a second torsion spring 6.
When the wire rope cleaning device works, when the wire rope 2 passes through the annular sleeve 51, the two cleaning blocks above the annular sleeve 51 can clean the surface of the wire rope 2, so that the friction between the wire rope 2 and the induction blocks 53 after entering the annular sleeve 51 is reduced, meanwhile, the two cleaning sheets 8 can be easily replaced by hinging the wire rope 2 through the second torsion spring 6, and further the practical application effect of the wire rope cleaning device is improved.
As an embodiment of the present invention, one end of the slide rail 41 is provided with an end cap 3; the end cap 3 is located at the end of the T-shaped slot 43.
When the induction unit 5 is used for a long time and needs to be maintained, a worker takes the steel wire rope 2 out of the annular sleeve 51, then the induction unit 5 and the movable rod slide out of the tail end of the T-shaped groove 43 along the T-shaped groove 43 together to complete maintenance of the induction unit 5, and the interior of the T-shaped groove 43 can be cleaned and maintained, so that the later maintenance of the novel steel wire rope sensor is facilitated for the worker, and the practical application effect of the novel steel wire rope sensor is improved.
Example 1: comprises a driving device 1, an alarm device and a steel wire rope 2; the steel wire rope 2 is wound and fixedly connected in the driving device 1; the alarm device is used for alarming the function abnormity of the invention;
further comprising:
the induction units 5 are respectively sleeved on the two movable steel wire ropes 2, and the induction units 5 can detect the concave-convex degree of the surfaces of the steel wire ropes 2;
a support module 4, wherein the support module 4 is positioned below the driving device 1, and the support module 4 can enable the sensing unit 5 to move;
and the controller is used for controlling the automatic operation of the electric hoist for the single-beam crane.
A worker opens the driving device 1 through the controller, a driver in the driving device 1 drives the two steel wire ropes 2 to rotate, the steel wire ropes 2 penetrate through the sensing unit 5, under the pulling of the hook and gravity, the part of the steel wire rope 2 exposed out of the driving device 1 is straightened and slides in the sensing unit 5, in the process of rotating the two steel wire ropes 2, the opening angle between the two steel wire ropes 2 can change along with the rotating amplitude, the sensing unit 5 slides on the supporting unit while changing, when the sensing unit 5 detects that the surface of the steel wire rope 2 has the phenomena of residual fracture, damage or deformation and the like, the sensing unit 5 transmits a signal thereof to the controller, the controller controls the alarm device to work, meanwhile, the controller controls the driving device 1 to stop working, so that the steel wire rope 2 stops moving, and then the workers evacuate irrelevant people to leave the site to overhaul the electric hoist.
In the present embodiment, the sensing unit 5 includes an annular sleeve 51, a spring 52, a sensing block 53, and a pressure sensor 54; the annular sleeve 51 is fixedly connected with the support module 4; the annular sleeve 51 is sleeved on the steel wire rope 2; the inner wall of the annular sleeve 51 is uniformly provided with circular grooves 55; the bottom of the circular groove 55 is fixedly connected with a pressure sensor 54; a spring 52 is fixedly connected to one side of the pressure sensor 54 away from the bottom of the circular groove 55; one end of the spring 52 far away from the bottom of the circular groove 55 is fixedly connected with an induction block 53; one side of the sensing block 53 away from the bottom of the circular groove 55 protrudes out of the circular groove 55.
When the steel wire rope 2 moves in the annular sleeve 51, the surface of the steel wire rope 2 is in contact with one surface, far away from the circular groove 55, of the sensing block 53, the steel wire rope 2 is usually formed by twisting a plurality of strands of thin steel wires together, so that the surface of the steel wire rope 2 usually has regular lines, the steel wire rope 2 is in contact with the sensing block 53, the sensing block 53 transmits pressure to the pressure sensor 54 through the spring 52, when the pressure sensor 54 presets the range of normal allowable fluctuation of the steel wire rope 2, when the pressure sensor 54 receives data outside the range of allowable fluctuation, the pressure sensor 54 transmits the information to the controller, the controller controls the alarm device to give an alarm and close the driving device 1, the steel wire rope 2 stops moving, and after people are evacuated, the workers overhaul the electric hoist;
in this embodiment, the support module 4 includes a slide rail 41 and a slide bar 42; the slide rail 41 is fixedly connected with the driving device 1, and a T-shaped groove 43 is formed in the slide rail 41 and communicated with the outside of the slide rail 41; the T-shaped groove 43 is connected with the sliding rod 42 in a sliding way; the slide bar 42 is slidable in the T-shaped groove 43.
When the automatic adjusting device works, a worker opens the controller to control the driving mechanism to work, and only one layer of steel wire ropes is arranged horizontally and bundled, so that the steel wire ropes 2 can move towards two edges while being stretched by the driving mechanism, an included angle between the two steel wire ropes 2 is enlarged, the lower sliding rod 42 is driven by the annular sleeve 51 to slide on the sliding rail 41, the condition that the numerical value of the pressure sensor 54 is wrong due to the fact that the position of the annular sleeve 51 is fixed is avoided, the annular sleeve 51 can automatically adjust the position according to the included angle between the two steel wire ropes 2, and the automatic adjusting device is more rigorous and creative.
In this embodiment, the upper end of the slide rail 41 is fixedly connected with an oil filling box 44; the slide rail 41 is internally and uniformly provided with a pipeline 45; a conduit 45 communicates the T-shaped slot 43 with the oil injection box 44.
When the oil injection box works, a worker injects lubricating oil into the oil injection box 44, the lubricating oil flows into the T-shaped groove 43 through the pipeline 45, so that the friction force between the sliding rod 42 and the T-shaped groove 43 is reduced, and when the annular sleeve 51 drives the sliding rod 42 to move, the force of the sliding rod 42 on the annular sleeve 51 is reduced, so that the numerical value measured by the pressure sensor 54 in the annular sleeve 51 is more accurate, the practical application effect of the oil injection box is further optimized, and the practical application effect of the oil injection box is improved.
In this embodiment, the annular sleeve 51 may be split into two halves; the two half annular sleeves 51 are connected through a first torsion spring 57; the torsion force of the torsion spring number one 57 is larger than the elastic force of the spring 52.
When the steel wire rope 2-free anti-theft alarm works, the two steel wire ropes 2 move in the annular sleeve 51, when the annular sleeve 51 meets the position where the steel wire rope 2 deforms, the pressure sensor 54 of the annular sleeve 51 transmits data corresponding to the deformed steel wire rope 2 to the controller, the controller controls the alarm device to be started and controls the driving device 1 to stop working, at the moment, the steel wire rope still moves for a small distance under the action of inertia force in the driver, at the moment, when the deformed steel wire rope 2 passes through the annular sleeve 51, the two half annular sleeves 51 overcome the torsion force of the first torsion spring 57 to move outwards, after the deformed steel wire rope 2 moves to pass through the annular sleeve 51, the annular sleeve 51 enables the annular sleeve 51 to be closed under the action of the torsion force of the first torsion spring 57, and the steel wire rope 2 stops moving.
In this embodiment, one end of the slide rail 41 is provided with the end cover 3; the end cap 3 is located at the end of the T-shaped slot 43.
When the induction unit 5 is used for a long time and needs to be maintained, a worker takes the steel wire rope 2 out of the annular sleeve 51, then the induction unit 5 and the movable rod slide out of the tail end of the T-shaped groove 43 along the T-shaped groove 43 together to complete maintenance of the induction unit 5, and the interior of the T-shaped groove 43 can be cleaned and maintained, so that the later maintenance of the novel steel wire rope sensor is facilitated for the worker, and the practical application effect of the novel steel wire rope sensor is improved.
Example 2: in this embodiment, the annular ring 7 is sleeved outside the annular sleeve 51; the annular ring 7 is connected with the sliding rod 42; the induction unit 5 is wrapped and fixed by the annular ring 7.
When the steel wire rope 2 works, the steel wire rope 2 moves in the annular sleeve 51, after a deformed part of the steel wire rope 2 passes through the annular sleeve 51, the pressure sensor 54 in the annular sleeve 51 transmits data corresponding to the deformed steel wire rope 2 to the controller, the controller controls the alarm device to be started and controls the driving device 1 to stop working, at the moment, the inner part of the driver enables the steel wire rope to still move for a small distance under the action of inertia force, at the moment, the deformed steel wire rope 2 is in the annular sleeve 51 and clamps the annular sleeve 51, at the moment, the annular sleeve 51 overcomes the friction force between the deformed steel wire rope 2 and the induction block 53, the annular sleeve 51 and the annular ring 7 are separated from moving along with the steel wire rope 2, and after the inertia force of the driving device 1 disappears, the annular sleeve 51 and the steel wire rope 2 do not move any more.
Example 3: in this embodiment, the sliding rod 42 is rotatably connected to the annular sleeve 51.
During operation, two wire rope 2 along with drive arrangement 1's change, its angle also can follow the change together, and annular cover 51 can follow the change according to two wire rope 2 angles and change the angle for wire rope 2, has avoided forming the shearing force between wire rope 2 and the response piece 53 in the annular cover 51 to the condition that influences pressure sensor 54 numerical value appears.
In this embodiment, the end portions of the annular sleeve 51 are provided with inclined surfaces 56; the ramps 56 are each directed inwardly of the annular sleeve 51.
When the device works, when the deformed steel wire rope 2 passes through the annular sleeve 51, the deformed steel wire rope 2 moves towards the inside of the annular sleeve 51 along the inclined surface 56, after the buffer action of the inclined surface 56, the steel wire rope 2 extrudes the sensing block 53, the excessive deformation position of the steel wire rope 2 can also extrude the inner wall of the annular sleeve 51 to open the first torsion spring 57 on the annular sleeve 51, the sensing block 53 transmits force to the pressure sensor 54 through the spring 52, and the pressure sensor 54 transmits the force to the controller to give an alarm and close the driving device 1.
Example 4: in this embodiment, two cleaning sheets 8 are hinged above the annular sleeve 51; the cleaning sheet 8 is rotationally connected through a second torsion spring 6.
When the wire rope cleaning device works, when the wire rope 2 passes through the annular sleeve 51, the two cleaning blocks above the annular sleeve 51 can clean the surface of the wire rope 2, so that the friction between the wire rope 2 and the induction blocks 53 after entering the annular sleeve 51 is reduced, meanwhile, the two cleaning sheets 8 can be easily replaced by hinging the wire rope 2 through the second torsion spring 6, and further the practical application effect of the wire rope cleaning device is improved.
And (3) experimental verification:
purpose of the experiment: comparing the times of false alarm of the oil filling box and the times of false alarm of the oil filling box which is not arranged in the invention;
an experimental instrument: the invention relates to an electric hoist of a single-beam crane, in particular to an electric hoist of a single-beam crane without an oil filling box;
the experimental process comprises the following steps: the method comprises the following steps that a worker puts two groups of single-beam crane electric hoists into a factory for use, and the times of false alarm within 20 days, 40 days, 60 days, 80 days and 100 days are counted respectively;
the staff records the times of false alarm in different days of the electric hoist of the single-beam crane and the electric hoist of the single-beam crane without the oil filling box by using the method, and the data is drawn as the attached figure 7;
analysis and summary:
experiments show that the invention is used in the process of application; when two different types of experimental groups are compared, the number of times of misinformation of the single-beam crane electric hoist provided with the oil injection box is obviously less than that of the single-beam crane electric hoist without the oil injection box; therefore, the accuracy of the alarm of the invention can be improved after the oil box is arranged, so that the installation of the oil filling port of the invention is beneficial to the accuracy of data transmission, and the times of false alarm are reduced.
The foregoing shows and describes the general principles, principal features and advantages of the invention; it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The invention relates to an electric hoist of a single-beam crane;
comprises a driving device (1), an alarm device and a steel wire rope (2); the steel wire rope (2) is wound and fixedly connected in the driving device (1); the alarm device is used for alarming the function abnormity of the invention; the method is characterized in that:
further comprising:
the induction units (5) are respectively sleeved on the two movable steel wire ropes (2), and the induction units (5) can detect the concave-convex degree of the surfaces of the steel wire ropes (2);
the supporting module (4), the supporting module (4) is positioned below the driving device (1), and the supporting module (4) can enable the sensing unit (5) to move;
and the controller is used for controlling the automatic operation of the electric hoist for the single-beam crane.
2. The electric hoist for the single-beam crane according to claim 1, characterized in that: the sensing unit (5) comprises an annular sleeve (51), a spring (52), a sensing block (53) and a pressure sensor (54); the annular sleeve (51) is fixedly connected with the support module (4); the annular sleeve (51) is sleeved on the steel wire rope (2); circular grooves (55) are uniformly formed in the inner wall of the annular sleeve (51); the bottom of the circular groove (55) is fixedly connected with a pressure sensor (54); a spring (52) is fixedly connected with one side of the pressure sensor (54) far away from the bottom of the circular groove (55); one end of the spring (52) far away from the bottom of the round groove (55) is fixedly connected with an induction block (53); one surface of the induction block (53) far away from the bottom of the circular groove (55) is protruded and extends out of the circular groove (55).
3. The electric hoist for the single-beam crane according to claim 2, characterized in that: the support module (4) comprises a slide rail (41) and a slide rod (42); the sliding rail (41) is fixedly connected with the driving device (1), and a T-shaped groove (43) is formed in the sliding rail (41) and communicated with the outside of the sliding rail (41); the T-shaped groove (43) is connected with the sliding rod (42) in a sliding way; the slide rod (42) can slide in the T-shaped groove (43).
4. The electric hoist for the single-beam crane according to claim 3, characterized in that: the upper end of the sliding rail (41) is fixedly connected with an oil injection box (44); the slide rail (41) is internally and uniformly provided with a pipeline (45); a pipeline (45) connects the T-shaped groove (43) with the oil injection box (44).
5. The electric hoist for the single-beam crane according to claim 3, characterized in that: the annular sleeve (51) can be split into two halves; the two half annular sleeves (51) are connected through a first torsion spring (57); the torsion force of the first torsion spring (57) is larger than the elastic force of the spring (52).
6. The electric hoist for the single-beam crane according to claim 6, characterized in that: the outer part of the annular sleeve (51) is sleeved with an annular ring (7); the annular ring (7) is connected with the sliding rod (42); the induction unit (5) is wrapped and fixed by the annular ring (7).
7. The electric hoist for the single-beam crane according to claim 2, characterized in that: the sliding rod (42) is rotationally connected with the annular sleeve (51).
8. The electric hoist for the single-beam crane according to claim 2, characterized in that: two cleaning sheets (8) are hinged above the annular sleeve (51); the cleaning sheet (8) is rotationally connected through a second torsion spring (6).
9. The electric hoist for the single-beam crane according to claim 3, characterized in that: one end of the sliding rail (41) is provided with an end cover (3); the end cap (3) is located at the end of the T-shaped slot (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111598846.6A CN114314358A (en) | 2021-12-24 | 2021-12-24 | Electric hoist of single-beam crane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111598846.6A CN114314358A (en) | 2021-12-24 | 2021-12-24 | Electric hoist of single-beam crane |
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| CN114314358A true CN114314358A (en) | 2022-04-12 |
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| CN202111598846.6A Pending CN114314358A (en) | 2021-12-24 | 2021-12-24 | Electric hoist of single-beam crane |
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Cited By (1)
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