CN115303953A - Overload safety protection device for hoisting equipment - Google Patents
Overload safety protection device for hoisting equipment Download PDFInfo
- Publication number
- CN115303953A CN115303953A CN202211244754.2A CN202211244754A CN115303953A CN 115303953 A CN115303953 A CN 115303953A CN 202211244754 A CN202211244754 A CN 202211244754A CN 115303953 A CN115303953 A CN 115303953A
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- arc
- shaft
- sleeve
- plate
- sliding
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- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000004804 winding Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention provides an overload safety protection device for hoisting equipment, which comprises a fixed shaft fixedly connected with a crane boom, wherein the fixed shaft is rotatably provided with a rotating disc, the rotating disc is distributed with a plurality of sliding chutes extending along the radial direction, sliding shafts are arranged in the sliding chutes in a sliding manner, the sliding shafts are provided with elastic parts, the sliding shafts are provided with linear buckling mechanisms, the sliding shafts are coaxially provided with hinged shafts, the hinged shafts are provided with arc buckling mechanisms, the linear buckling mechanisms comprise a first plate sleeve, a first inserting plate, a second inserting plate and a second plate sleeve which are positioned on the same side, the arc buckling mechanisms comprise a first half buckle and a second half buckle which are mutually hinged, the first half buckle comprises a first hinged hole matched with a shaft hole of the hinged shaft, the second half buckle comprises a second hinged hole matched with the shaft hole of the hinged shaft, the first half buckle is provided with a first arc sleeve and a first arc plate which are arranged at intervals, and the second half buckle is provided with a second arc sleeve and a second arc plate which are arranged at intervals, and the technical problem that a hoisted object impacts the crane boom is solved.
Description
Technical Field
The invention relates to an overload safety protection device for hoisting equipment.
Background
The hoist lifts by crane the heavy object, and after the hoist was shut down, the heavy object can continue upward movement because of self inertia, and the rope of lifting by crane this moment begins to relax, moves downstream under self action of gravity behind the summit until lifting by crane the rope and by stretched straight, at the rope by stretched straight moment, because the rope does not have elastic, the rope is very easily stretched out by the stretch-breaking during this moment, leads to being lifted by crane the thing and drops easily.
Disclosure of Invention
The invention provides an overload safety protection device for hoisting equipment, which is used for solving the technical problem that a hoisted object impacts a crane boom after being blocked.
The technical scheme of the invention is realized as follows: a hoisting equipment overload safety protection device comprises a fixed shaft fixedly connected with a crane boom, wherein the fixed shaft is rotatably provided with a rotating disc, the rotating disc is distributed with a plurality of sliding chutes extending along the radial direction, a translation shaft is arranged in each sliding chute in a sliding manner, each sliding chute is provided with an elastic piece for pushing the translation shaft to move in the direction away from the fixed shaft, each translation shaft is provided with a linear buckling mechanism, adjacent linear buckling mechanisms are buckled with each other, the sliding shafts are coaxially provided with hinge shafts, each hinge shaft is provided with an arc buckling mechanism, the adjacent arc buckling mechanisms are buckled with each other, each linear buckling mechanism comprises a first plate sleeve and a first inserting plate which are positioned on the same side, the first plate sleeve is correspondingly provided with a second inserting plate, each first plate sleeve is correspondingly provided with a second inserting plate sleeve, each first inserting plate sleeve and each first arc plate are correspondingly provided with a first half buckle and a second half buckle, each first half buckle comprises a first hinge hole matched with the hinge shaft hole of the hinge shaft, each second half buckle comprises a second arc sleeve and a second arc plate, the first arc sleeve and the second arc plate are arranged at intervals, and the second half buckles are arranged at intervals.
Furthermore, one side of the first plate sleeve opposite to the second plate sleeve of the adjacent linear buckling mechanism is provided with first meshing teeth, a first transmission gear meshed with the first meshing teeth is arranged between the second plate sleeves of the first plate sleeve and the adjacent linear buckling mechanism, one side of the first arc sleeve opposite to the second arc sleeve of the adjacent arc buckling mechanism is provided with second meshing teeth, a second transmission gear meshed with the second meshing teeth is arranged between the first arc sleeve and the second arc sleeve of the adjacent arc buckling mechanism, the second transmission gear is hinged to a swing rod, the swing rod is provided with a guide groove, the first transmission gear is vertically provided with a guide shaft capable of sliding in the guide groove along the radial direction of the rotating disc, the upper surface of the fixed shaft is provided with a limiting groove corresponding to the swing rod and extending in the radial direction, the limiting groove is provided with a sliding shaft extending to the upper surface of the fixed shaft, and one end of the swing rod, close to the sliding shaft, is provided with a clamping groove used for clamping with the sliding shaft when the swing rod moves inwards.
Furthermore, a pushing platform is arranged between the adjacent limiting grooves.
Furthermore, a pressure sensor is arranged at the inner end of the swing rod to control the winch to stop rotating and lock.
Further, the pushing table is long.
Furthermore, the number of the swing rods is three, and the swing rods are evenly distributed around the circumferential direction of the fixed shaft.
Further, the first arc sleeve and the second arc plate are protruded towards the outer side.
Furthermore, the first arc sleeve and the second arc plate are provided with rope grooves for winding steel wire ropes.
By adopting the technical scheme, the invention has the beneficial effects that: when the hoisted object scrapes with other objects to generate impact load on the crane boom, the tightening force applied to the arc buckling mechanisms is increased and is tightened and contracted by the steel wire rope, and at the moment, the linear buckling mechanisms follow up to ensure that all the arc buckling mechanisms are synchronously retracted in the circumferential direction, so that the impact of the hoisted object on the crane boom is reduced.
Furthermore, if the lifted object is continuously scraped with other objects, the clamping groove at the end part of the swing rod hooks the sliding shaft, at the moment, the winch actively drives the arc buckling mechanism to contract through the steel wire rope, and when the arc buckling mechanism actively contracts, the steel wire rope wound on the arc buckling mechanism is actively released to the two ends so as to reduce the impact of the lifted object on the crane arm due to scraping; and at the moment, the hoisted object is decelerated due to scraping, and the steel wire rope released by the arc buckling mechanism by contraction reduces the pulling force of the winch on the hoisted object, reduces the load of the crane arm and is beneficial to the stop of the hoisted object.
Further, when being lifted by the crane and being close when stopping, the hoist engine further stimulates wire rope, the pendulum rod is close to fixed axle one end and slides along the spacing groove so that pitch arc lock mechanism contracts fast this moment, make the pendulum rod be close to fixed axle one end and support rapidly and push to adjacent pendulum rod on, the wire rope length that hoisting equipment overload safety arrangement released this moment equals the wire rope length that the hoist engine tightened up, the hoist engine does not have ascending lifting force to being lifted by the crane promptly this moment, avoid being lifted by the crane and scurring under the hoist engine pulling force effect, make the stop motion that is lifted by the crane can be more steady.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of an overload protection device for a lifting apparatus according to the present invention;
FIG. 2 is a schematic structural diagram of an overload protection device for a hoisting apparatus according to the present invention;
FIG. 3 is a top view of the overload protection apparatus of the present invention;
FIG. 4 is an enlarged view of FIG. 3 at A;
FIG. 5 isbase:Sub>A sectional view taken along line A-A of FIG. 3;
FIG. 6 is a schematic view of a first half buckle according to the present invention;
FIG. 7 is a schematic view of a second half clasp of the present invention;
FIG. 8 is a schematic view of a linear snapping mechanism of the present invention;
FIG. 9 is a schematic view of the initial engagement of the sliding shaft and the slot of the present invention;
FIG. 10 is a schematic view of the structure of the sliding shaft and the engaging groove of the present invention engaging with the pushing platform;
wherein: 1. a cargo boom; 2. a wire rope; 3. an overload protection device; 4. a fixed shaft; 5. a first plate sleeve; 6. a first insert plate; 7. a second plate sleeve; 8. a second insert plate; 9. a first arc sleeve; 10. a first arc plate; 11. a second arc plate; 12. a second arc sleeve; 13. hinging shafts; 14. rotating the disc; 15. a chute; 16. a swing rod; 17. a first transmission gear; 18. a second transmission gear; 19. pushing the table; 20. a sliding shaft; 21. a first hinge hole; 22. a second hinge hole; 23. a limiting groove; 24. a card slot; 25. a translation shaft; 26. a guide groove; 27. a guide shaft; 100. a linear buckling mechanism; 200. a first half buckle; 300. and a second half buckle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An embodiment 1 of an overload safety protection device for hoisting equipment, as shown in fig. 1-10, includes a fixed shaft 4 fixedly connected to a boom 1, the fixed shaft is provided with a rotating disc 14 in rotation, the rotating disc is distributed with a plurality of sliding slots 15 extending along a radial direction, sliding slots are provided with a translation shaft 25 in sliding, the sliding slots are provided with elastic members (not shown in the figures) to push the translation shaft to move away from the fixed shaft, the translation shaft is provided with linear buckling mechanisms 100, adjacent linear buckling mechanisms are buckled with each other, the translation shaft is provided with a hinge shaft 13 coaxially, the hinge shaft is provided with an arc buckling mechanism, adjacent arc buckling mechanisms are buckled with each other, the linear buckling mechanism includes a first plate sleeve 5 and a first inserting plate 6 on the same side, the first plate sleeve is provided with a second inserting plate 8 correspondingly, the first inserting plate is provided with a second plate sleeve 7 correspondingly, the arc buckling mechanism includes a first half buckle 200 and a second half buckle 300 hinged to each other, the first half buckle includes a first hinge hole 21 matched with the shaft hole of the hinge shaft, the second half buckle includes a second hinge hole 22 matched with the shaft hole, the first half buckle is provided with a first hinge sleeve 9 and a second half buckle provided with an inner arc sleeve 12, the second half buckle provided with an outer arc sleeve provided at intervals, and a second arc sleeve 12 is provided with a second arc sleeve 11 and an outer arc sleeve.
An embodiment 2 of an overload safety protection device for hoisting equipment, as shown in fig. 1-10, comprises a fixed shaft 4 fixedly connected to a boom 1, the fixed shaft is rotatably provided with a rotating disc 14, the rotating disc is distributed with a plurality of sliding slots 15 extending along a radial direction, sliding slots are slidably provided with a translation shaft 25, the sliding slots are provided with elastic members (not shown) for pushing the translation shaft to move away from the fixed shaft, the translation shaft is provided with linear buckling mechanisms 100, adjacent linear buckling mechanisms are buckled with each other, the translation shaft is coaxially provided with a hinge shaft 13, the hinge shaft is provided with arc buckling mechanisms, adjacent arc buckling mechanisms are buckled with each other, the linear buckling mechanisms comprise a first plate sleeve 5 and a first inserting plate 6 which are positioned at the same side, the first plate sleeve is correspondingly provided with a second inserting plate 8, the first inserting plate is correspondingly provided with a second plate sleeve 7, the arc buckling mechanisms comprise a first half buckle 200 and a second half buckle 300 which are hinged with each other, the first half buckle comprises a first hinge hole 21 matched with the hinge shaft hole, the second half buckle comprises a second hinge hole 22 matched with the hinge shaft hole, the first half buckle is provided with a first arc sleeve 9 and a first arc plate 10 which are arranged at intervals, the second half buckle is provided with a second arc sleeve 12 and a second arc plate 11 which are arranged at intervals, one side of the first plate sleeve opposite to the second plate sleeve of the adjacent straight line buckling mechanism is provided with first meshing teeth (not shown in the figure), a first transmission gear 17 meshed with the first meshing teeth is arranged between the first plate sleeve and the second plate sleeve of the adjacent straight line buckling mechanism, one side of the first arc sleeve opposite to the second arc sleeve of the adjacent arc buckling mechanism is provided with second meshing teeth (not shown in the figure), a second transmission gear 18 meshed with the second meshing teeth is arranged between the first arc sleeve and the second arc sleeve of the adjacent arc buckling mechanism, the second transmission gear is hinged with a swing rod 16, the swing rod is provided with a guide groove 26, the first transmission gear is vertically provided with a guide shaft 27 which can slide in the guide groove along the radial direction of the rotating disc, the upper surface of the fixed shaft is provided with a limiting groove 23 which corresponds to the swing rod and extends along the radial direction, the limiting groove is provided with a sliding shaft 20 extending to the upper part of the upper surface of the fixed shaft, and one end of the swing rod, which is close to the sliding shaft, is provided with a clamping groove 24 used for clamping with the sliding shaft when the swing rod moves inwards.
An embodiment 3 of an overload safety protection device of hoisting equipment is different from the embodiment 1-2 in that a pushing platform 19 is arranged between adjacent limiting grooves, a pressure sensor is arranged at the inner end of a swing rod 16 to control a winch to stop rotating and lock, the pushing platform is long-strip-shaped, the number of the swing rods is three, the swing rods are evenly distributed around the circumferential direction of a fixed shaft, a first arc sleeve and a second arc plate are protruded towards the outer side, and rope grooves used for winding steel wire ropes are formed in the first arc sleeve and the second arc plate.
The use method of the overload safety protection device of the hoisting equipment comprises the steps that firstly, a steel wire rope is wound on a first arc sleeve and a second arc plate on the periphery of the steel wire rope for a plurality of circles, one end of the steel wire rope pulls a hoisted object to be hoisted, the other end of the steel wire rope is connected with a winch, and then the winch is started to pull the steel wire rope; when the lifted object is lifted, the arc buckling mechanisms rotate clockwise, when the lifted load is increased to exceed the rated load, the tightening force applied to the arc buckling mechanisms is increased, the arc buckling mechanisms are tightened and contracted by the steel wire rope, at the moment, the linear buckling mechanisms follow up to ensure that all the arc buckling mechanisms in the circumferential direction are synchronously contracted, the second transmission gear rotates clockwise, and as the diameter of the first arc sleeve is larger than that of the second arc sleeve, the second transmission gear rotates clockwise relative to the rotating disc, the position of the first transmission gear relative to the rotating disc is unchanged at the moment, the oscillating bars rotate circumferentially relative to the rotating disc and deflect clockwise, and the inner ends of the oscillating bars approach each other until the sliding shaft is clamped into the clamping groove; the inner end of the swing rod is pulled inwards by a sliding shaft to further slowly swing clockwise, the arc buckling mechanism is driven by a second transmission gear 18 at one end of the swing rod 16 to further slowly contract until a pushing platform 19 contacts the swing rod 16 and further rotates clockwise, the pushing platform 19 pushes the swing rod 16 to further quickly swing clockwise, a sliding shaft 20 is separated from a clamping groove 24, the arc buckling mechanism is driven by the second transmission gear 18 at one end of the swing rod 16 to further quickly contract until the inner ends of the swing rod 16 are in contact clamping with each other, namely the end part, far away from the second transmission gear, of the swing rod 16 supports and pushes an adjacent swing rod, the whole device cannot rotate at the moment, and a pressure sensor is arranged at the inner end of the swing rod 16 to control a winch to stop rotating and lock.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The overload safety protection device for the hoisting equipment comprises a fixed shaft fixedly connected with a crane boom, and is characterized in that the fixed shaft is rotatably provided with a rotating disc, a plurality of sliding grooves extending along the radial direction are distributed on the rotating disc, a translation shaft is arranged in the sliding grooves in a sliding mode, elastic pieces are arranged on the sliding grooves to push the translation shaft to move in the direction away from the fixed shaft, linear buckling mechanisms are arranged on the translation shaft, adjacent linear buckling mechanisms are buckled with each other, the sliding shaft is provided with a hinged shaft, the hinged shaft is provided with an arc line buckling mechanism, the adjacent arc line buckling mechanisms are buckled with each other, each linear buckling mechanism comprises a first plate sleeve and a first inserting plate which are positioned on the same side, the first plate sleeve is correspondingly provided with a second inserting plate, each first arc line buckling mechanism comprises a first half buckle and a second half buckle which are hinged with each other, each first half buckle comprises a first hinged hole matched with the shaft hole of the arc line, each second half buckle comprises a second hinged hole matched with the shaft hole of the hinged shaft, and the first half buckle is provided with a first arc line sleeve and a second arc line.
2. The overload safety protection device for hoisting equipment according to claim 1, wherein the first plate sleeve and the second plate sleeve of the adjacent linear buckling mechanism are provided with a first engaging tooth at opposite sides thereof, a first transmission gear engaged with the first engaging tooth is arranged between the first plate sleeve and the second plate sleeve of the adjacent linear buckling mechanism, a second engaging tooth is arranged at opposite sides of the first arc sleeve and the second arc sleeve of the adjacent arc buckling mechanism, a second transmission gear engaged with the second engaging tooth is arranged between the first arc sleeve and the second arc sleeve of the adjacent arc buckling mechanism, the second transmission gear is hinged with a swing rod, the swing rod is provided with a guide groove, the first transmission gear is vertically provided with a guide shaft capable of sliding in the guide groove along the radial direction of the rotating disc, the upper surface of the fixed shaft is provided with a limit groove corresponding to the swing rod and extending in the radial direction, the limit groove is provided with a sliding shaft extending above the upper surface of the fixed shaft, and one end of the swing rod near the sliding shaft is provided with a clamping groove for clamping with the sliding shaft when the sliding shaft moves inwards.
3. The overload protection device for hoisting equipment according to claim 2, wherein a push platform is arranged between the adjacent limiting grooves.
4. The overload safety protection device for hoisting equipment according to claim 3, wherein the inner ends of the swing links are provided with pressure sensors to control the winch to stop rotating and lock when the ends of the swing links push against the adjacent swing links.
5. The overload protection device of claim 4, wherein the pushing platform is elongated.
6. The overload safety protection device for hoisting equipment according to claim 5, wherein the number of the swing links is three and the swing links are evenly distributed around the circumference of the fixed shaft.
7. The overload protection device of claim 6, wherein the first arc sleeve and the second arc plate are convex towards the outside.
8. The overload protection device for hoisting equipment of claim 7, wherein the first arc sleeve and the second arc plate are provided with rope grooves for winding steel ropes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211244754.2A CN115303953A (en) | 2022-10-12 | 2022-10-12 | Overload safety protection device for hoisting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211244754.2A CN115303953A (en) | 2022-10-12 | 2022-10-12 | Overload safety protection device for hoisting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115303953A true CN115303953A (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211244754.2A Pending CN115303953A (en) | 2022-10-12 | 2022-10-12 | Overload safety protection device for hoisting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115303953A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1119485A (en) * | 1966-07-07 | 1968-07-10 | Weighload Ltd | Safe load indicators for jib cranes |
| CN113479796A (en) * | 2021-08-13 | 2021-10-08 | 张珍华 | Crane overspeed monitoring device |
| CN113651244A (en) * | 2021-08-13 | 2021-11-16 | 周杰 | Overload monitoring device for jack |
| CN113682987A (en) * | 2021-09-09 | 2021-11-23 | 河南省建筑科学研究院有限公司 | Crane operation safety monitoring device |
| CN113734971A (en) * | 2021-11-08 | 2021-12-03 | 河南工学院 | Four limbs location conveying winch for livestock raising and beast raising medicine |
-
2022
- 2022-10-12 CN CN202211244754.2A patent/CN115303953A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1119485A (en) * | 1966-07-07 | 1968-07-10 | Weighload Ltd | Safe load indicators for jib cranes |
| CN113479796A (en) * | 2021-08-13 | 2021-10-08 | 张珍华 | Crane overspeed monitoring device |
| CN113651244A (en) * | 2021-08-13 | 2021-11-16 | 周杰 | Overload monitoring device for jack |
| CN113682987A (en) * | 2021-09-09 | 2021-11-23 | 河南省建筑科学研究院有限公司 | Crane operation safety monitoring device |
| CN113734971A (en) * | 2021-11-08 | 2021-12-03 | 河南工学院 | Four limbs location conveying winch for livestock raising and beast raising medicine |
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Application publication date: 20221108 |
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| RJ01 | Rejection of invention patent application after publication |