CN108657968B - Telescopic crane capable of preventing steel rope from falling off - Google Patents
Telescopic crane capable of preventing steel rope from falling off Download PDFInfo
- Publication number
- CN108657968B CN108657968B CN201810533108.5A CN201810533108A CN108657968B CN 108657968 B CN108657968 B CN 108657968B CN 201810533108 A CN201810533108 A CN 201810533108A CN 108657968 B CN108657968 B CN 108657968B
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- Prior art keywords
- suspension arm
- rotating
- fixedly connected
- limiting device
- arm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/04—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
- B66C23/163—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements where only part of the column rotates, i.e. at least the bottom part is fixed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a telescopic crane for preventing a steel rope from falling, which comprises a base and a fixed frame, wherein the upper end of the base is provided with the fixed frame, the base and the fixed frame are fixedly connected through bolts, the upper end of the fixed frame is provided with a frame body, and the fixed frame and the frame body are fixedly connected through bolts. So that the steel wire rope in the pulley groove can not jump the groove, and the service life is prolonged.
Description
Technical Field
The invention belongs to the related technical field of hoisting equipment, and particularly relates to a telescopic crane capable of preventing a steel rope from falling off.
Background
The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. Also known as crown blocks, navigation cranes and cranes. The tyre crane has the main characteristic that a driving cab and a hoisting control cab are combined into a whole and are formed by the evolution of a crawler crane, a crawler and a walking bracket of a walking mechanism are changed into a chassis with tyres, the defect that a crawler plate of the crawler crane damages the road surface is overcome, and the tyre crane belongs to a material handling mechanism. Since its two ends are seated on a tall concrete column or a metal bracket, it is shaped like a bridge. The bridge frame of the bridge crane runs longitudinally along the rails laid on the elevated frames at two sides, so that the space below the bridge frame can be fully utilized to hoist materials without being hindered by ground equipment. The lifting machine has the widest application range and the largest quantity. The hoisting equipment has the working characteristics of intermittent movement, namely corresponding mechanisms for taking materials, transporting, unloading and the like in one working cycle alternately work, so that the development and the use of the crane on the market are more and more extensive. Because the weight is lifted without supporting legs and the weight is lifted to drive, the running speed is faster than that of a crawler crane, the operation is stable, the lifting capacity is large, the crawler crane can lift the weight to run in a specific range, but the road is smooth and firm, the tire pressure meets the requirement, the distance from the ground is not too high, and the crawler crane is forbidden to run for a long distance with load. In order to ensure the operation safety.
The prior crane technology has the following problems: the existing crane continues to use an inherent mechanical mechanism, a balancing arm always keeps a unique static moment when a crane boom frequently runs under a dynamic and variable abnormal working condition of a lifting weight, an unbalanced state brought to the whole crane by variable lifting moment cannot be counteracted, and a steel wire rope in a pulley groove frequently jumps, so that the steel wire rope is particularly easy to damage, the service life of the steel wire rope is greatly reduced, the working efficiency of the crane is reduced, and the maintenance cost is increased.
Disclosure of Invention
The invention aims to provide a telescopic crane capable of preventing a steel rope from falling off, and the telescopic crane is used for solving the problems that the existing crane in the background technology uses an inherent mechanical mechanism, a crane boom always runs under a dynamic variable abnormal working condition of a lifting weight, a balance arm always keeps a unique static moment, an unbalanced state brought to the whole crane by variable lifting moment cannot be offset, and the steel rope in a pulley groove is frequently jumped to the groove, so that the steel rope is particularly easy to damage, the service life of the steel rope is greatly reduced, the working efficiency of the crane is reduced, and the maintenance cost is increased.
In order to achieve the purpose, the invention provides the following technical scheme: a telescopic crane capable of preventing a steel rope from falling off comprises a base and a fixing frame, wherein the fixing frame is arranged at the upper end of the base, the base and the fixed mount are fixedly connected through bolts, the upper end of the fixed mount is provided with a mount body, the fixed frame and the frame body are fixedly connected through bolts, the top end of the upper part of the frame body is provided with a control room, the upper end of the control room is provided with a rotating platform, the upper end of the rotating platform is provided with a frame top, the rotating platform and the frame top are fixedly connected through bolts, a winch is arranged on the left side of the rotating platform, a balance arm is arranged on the left side of the winch, a balance weight is arranged inside the balance arm, a suspension arm is arranged on the right side of the rotating table, a sliding cable track is arranged at the bottom end of the lower side of the suspension arm, the right-hand member downside of suspension arm is provided with the lifting hook, hoist engine and control room electric connection.
Preferably, the suspension arm comprises a first suspension arm, a sliding groove, a second suspension arm, a limiting device, a pulley and a shaft rod, the limiting device is arranged at the lower end of the inside of the first suspension arm, the second suspension arm is arranged at the lower end of the limiting device, the sliding groove is formed in the lower end of the second suspension arm, the pulley is arranged on the upper side of the inside of the sliding groove, the shaft rod is arranged inside the pulley, and the suspension arm is fixedly connected with the rotating table through the first suspension arm.
Preferably, stop device's constitution is including baffle, fixed block, connection platform, rigid spring and hydraulic stem, the right side of baffle is provided with the hydraulic stem, outside a week of hydraulic stem is provided with rigid spring, the right side of rigid spring is provided with the fixed block, the right side of fixed block is provided with the connection platform, stop device carries out fixed connection through connecting platform and davit one.
Preferably, the sliding cable track comprises a connecting block, a support, a rotating shaft and a rotating wheel, the support is arranged at the upper end of the connecting block, the rotating shaft is arranged on the right side of the support, the rotating wheel is arranged at the upper end of the inner portion of the rotating shaft, and the sliding cable track is fixedly connected with the first suspension arm through the connecting block.
Preferably, the support is provided with two, the inside of both sides support is provided with two pivot and runner altogether, two pivot and runner are upper and lower symmetrical arrangement, the interval between two runners can hold wire rope and pass through.
Preferably, the first and second suspension arms are made of stainless steel, the second suspension arm is a rectangular hollow structure, and the first suspension arm is larger than the second suspension arm in size.
Preferably, the rotating table can rotate in all directions, and the rotating table rotates through an internal rotating shaft.
Preferably, the limiting device can prevent the second suspension arm from falling off when the second suspension arm is extended and shortened, and the limiting device has good impact resistance.
Compared with the prior art, the invention provides a telescopic crane capable of preventing a steel rope from falling off, which has the following beneficial effects: the invention sets two sections of suspension arms in a suspension arm of a crane, the two sections of suspension arms can perform telescopic motion and comprise a first suspension arm and a second suspension arm, when the two sections of suspension arms are telescopic, a limiting device is added, the limiting device can ensure that the second suspension arm can not fall off when the second suspension arm is extended and shortened, meanwhile, a rigid spring and a hydraulic rod are arranged in the limiting device, the limiting device has good impact resistance, the problem that a balance arm always keeps unique static moment is solved, the unbalance state of the whole crane caused by variable lifting moment can be counteracted, a connecting block, a support, a rotating shaft and a rotating wheel are arranged in a sliding cable track, the two rotating shafts and the rotating wheel are symmetrically arranged up and down, the distance can ensure that a steel wire rope can pass through, the steel wire rope in a pulley groove can not jump, and the service life.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:
FIG. 1 is a schematic view of a crane according to the present invention;
fig. 2 is a schematic view of a suspension arm structure according to the present invention;
FIG. 3 is a schematic structural view of a position limiting device according to the present invention;
FIG. 4 is a schematic structural view of a sliding cable track according to the present invention;
in the figure: 1. a base; 2. a fixed mount; 3. a frame body; 4. a balance arm; 5. balancing weight; 6. a winch; 7. a frame top; 8. a suspension arm; 81. a first suspension arm; 82. a chute; 83. a second suspension arm; 84. a limiting device; 841. a baffle plate; 842. a fixed block; 843. a connecting table; 844. a stiff spring; 845. a hydraulic lever; 85. a pulley; 86. a shaft lever; 9. a strop track; 91. connecting blocks; 92. a support; 93. a rotating shaft; 94. a rotating wheel; 10. a hook; 11. a rotating table; 12. and a control room.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable 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.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a prevent that steel cable from coming off telescopic hoist, including base 1 and mount 2, mount 2 is installed to base 1's upper end, base 1 and mount 2 carry out fixed connection through the bolt, the upper end of mount 2 is provided with frame body 3, mount 2 and frame body 3 carry out fixed connection through the bolt, the upper portion top of frame body 3 is provided with control room 12, the upper end of control room 12 is provided with swivel base 11, the upper end of swivel base 11 is provided with frame top 7, swivel base 11 and frame top 7 carry out fixed connection through the bolt, the left side of swivel base 11 is provided with hoist 6, the left side of hoist 6 is provided with balance arm 4, the inside of balance arm 4 is provided with counter weight 5, the right side of swivel base 11 is provided with suspension arm 8, suspension arm 8's downside bottom is provided with slide cable track 9, suspension arm 8's right-hand member downside is provided with lifting hook 10, hoist 6 and control.
In order to suspend objects with different distances without moment instability, in the present invention, preferably, the suspension arm 8 includes a first suspension arm 81, a sliding groove 82, a second suspension arm 83, a limiting device 84, a pulley 85 and a shaft lever 86, the limiting device 84 is disposed at the lower end of the interior of the first suspension arm 81, the second suspension arm 83 is disposed at the lower end of the limiting device 84, the sliding groove 82 is disposed at the lower end of the second suspension arm 83, the pulley 85 is disposed at the upper side of the interior of the sliding groove 82, the shaft lever 86 is disposed inside the pulley 85, and the suspension arm 8 is fixedly connected to the turntable 11 through the first suspension arm 81.
In order to prevent the suspension arms at the two ends from falling off or damaging the rack when the suspension arms at the two ends extend and retract, in the invention, preferably, the limiting device 84 comprises a baffle 841, a fixed block 842, a connecting table 843, a rigid spring 844 and a hydraulic rod 845, the hydraulic rod 845 is arranged on the right side of the baffle 841, the rigid spring 844 is arranged on the outer periphery of the hydraulic rod 845, the fixed block 842 is arranged on the right side of the rigid spring 844, the connecting table 843 is arranged on the right side of the fixed block 842, and the limiting device 84 is fixedly connected with the first suspension arm 81 through the connecting table 843.
In order to prevent the phenomenon of groove skipping of the steel wire rope in the working process of the crane, in the invention, preferably, the sliding cable rail 9 comprises a connecting block 91, a bracket 92, a rotating shaft 93 and a rotating wheel 94, the bracket 92 is arranged at the upper end of the connecting block 91, the rotating shaft 93 is arranged on the right side of the bracket 92, the rotating wheel 94 is arranged at the upper end inside the rotating shaft 93, and the sliding cable rail 9 is fixedly connected with the first boom 81 through the connecting block 91.
In order to enable the steel wire rope to closely fit the wheel to move, in the invention, preferably, two brackets 92 are provided, two rotating shafts 93 and rotating wheels 94 are arranged inside the brackets 92 at two sides, the two rotating shafts 93 and the rotating wheels 94 are arranged up and down symmetrically, and the distance between the two rotating wheels 94 can accommodate the steel wire rope to pass through.
In order to ensure that the two sections of the suspension arms do not collide when telescopic and can move quickly, the first suspension arm 81 and the second suspension arm 83 are made of stainless steel, the first suspension arm 81 and the second suspension arm 83 are rectangular structures with hollow interiors, and the first suspension arm 81 is larger than the second suspension arm 83 in size.
In order to suspend objects in different directions in all directions, in the present invention, it is preferable that the turntable 11 be rotatable in all directions, and the turntable 11 be rotatable by an internal rotation shaft.
In order to prevent the boom second 83 from falling off during the extension and contraction, in the present invention, it is preferable that the limiting device 84 is capable of preventing the boom second 83 from falling off during the extension and contraction, and the limiting device 84 has a good impact resistance.
The working principle and the using process of the invention are as follows: after the invention is installed, firstly checking whether the machine can work normally, checking whether the connection between the plug and the socket on the electric wire is finished, if abnormal noise occurs, closing the machine immediately, waiting for maintenance of professional personnel, when the crane is to be suspended, firstly operating through the control room 12, the windlass 6 contracting and releasing the steel wire rope, then releasing the steel wire rope through the sliding cable track 9, hooking objects through the hook 10, then the rotating platform 11 can rotate in all directions, the rotating platform 11 rotates through the internal rotating shaft, if objects with hollow inside are hooked, the suspension arm 8 comprises a suspension arm I81, a sliding groove 82, a suspension arm II 83, a limiting device 84, a pulley 85 and a shaft lever 86, and the suspension arm I81 and the suspension arm II 83 are made of stainless steel, the suspension arm I81 is larger than the suspension arm II 83 in size, and stop device 84 can make second arm 83 can not take place the phenomenon that drops when extending and shortening, and stop device 84 has good shock resistance, and two pivot 93 and runner 94 are the upper and lower symmetrical arrangement, and the interval can make wire rope pass through for wire rope in the pulley groove can not take place to jump the groove, improves life.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a prevent that steel cable from droing telescopic hoist, includes base (1) and mount (2), its characterized in that: the upper end of the base (1) is provided with a fixed frame (2), the base (1) and the fixed frame (2) are fixedly connected through bolts, the upper end of the fixed frame (2) is provided with a frame body (3), the fixed frame (2) and the frame body (3) are fixedly connected through bolts, the top end of the upper part of the frame body (3) is provided with a control chamber (12), the upper end of the control chamber (12) is provided with a rotating table (11), the upper end of the rotating table (11) is provided with a frame top (7), the rotating table (11) and the frame top (7) are fixedly connected through bolts, the left side of the rotating table (11) is provided with a winch (6), the left side of the winch (6) is provided with a balance arm (4), the inside of the balance arm (4) is provided with a balance weight (5), the right side of the rotating table (11) is provided with a suspension arm (, a sliding cable track (9) is arranged at the bottom end of the lower side of the suspension arm (8), a lifting hook (10) is arranged on the lower side of the right end of the suspension arm (8), and the winch (6) is electrically connected with a control room (12);
the suspension arm (8) comprises a first suspension arm (81), a sliding groove (82), a second suspension arm (83), a limiting device (84), a pulley (85) and a shaft lever (86), wherein the limiting device (84) is arranged at the lower end inside the first suspension arm (81), the second suspension arm (83) is arranged at the lower end of the limiting device (84), the sliding groove (82) is arranged at the lower end of the second suspension arm (83), the pulley (85) is arranged on the upper side inside the sliding groove (82), the shaft lever (86) is arranged inside the pulley (85), and the suspension arm (8) is fixedly connected with the rotating table (11) through the first suspension arm (81);
the limiting device (84) comprises a baffle (841), a fixed block (842), a connecting table (843), a rigid spring (844) and a hydraulic rod (845), the hydraulic rod (845) is arranged on the right side of the baffle (841), the rigid spring (844) is arranged around the outer side of the hydraulic rod (845), the fixed block (842) is arranged on the right side of the rigid spring (844), the connecting table (843) is arranged on the right side of the fixed block (842), and the limiting device (84) is fixedly connected with the first suspension arm (81) through the connecting table (843);
the sliding cable track (9) comprises a connecting block (91), a support (92), a rotating shaft (93) and a rotating wheel (94), the support (92) is arranged at the upper end of the connecting block (91), the rotating shaft (93) is arranged on the right side of the support (92), the rotating wheel (94) is arranged at the upper end inside the rotating shaft (93), and the sliding cable track (9) is fixedly connected with the first suspension arm (81) through the connecting block (91);
the two supports (92) are arranged, two rotating shafts (93) and rotating wheels (94) are arranged in the supports (92) on two sides, the two rotating shafts (93) and the rotating wheels (94) are arranged in a vertically symmetrical mode, and the distance between the two rotating wheels (94) can accommodate a steel wire rope to pass through;
the first suspension arm (81) and the second suspension arm (83) are made of stainless steel, the first suspension arm (81) and the second suspension arm (83) are rectangular structures with hollow interiors, and the first suspension arm (81) is larger than the second suspension arm (83) in size;
the rotating platform (11) can rotate in all directions, and the rotating platform (11) rotates through an internal rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810533108.5A CN108657968B (en) | 2018-05-29 | 2018-05-29 | Telescopic crane capable of preventing steel rope from falling off |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810533108.5A CN108657968B (en) | 2018-05-29 | 2018-05-29 | Telescopic crane capable of preventing steel rope from falling off |
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| CN108657968A CN108657968A (en) | 2018-10-16 |
| CN108657968B true CN108657968B (en) | 2020-04-24 |
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| CN201810533108.5A Active CN108657968B (en) | 2018-05-29 | 2018-05-29 | Telescopic crane capable of preventing steel rope from falling off |
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| CN114754311B (en) * | 2022-03-29 | 2023-06-23 | 华能伊敏煤电有限责任公司 | Hanging lighting device at top of excavator |
| CN116495634B (en) * | 2023-06-25 | 2023-09-15 | 河南坤宇市政园林工程有限公司 | Crane based on pipeline construction |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606044A (en) * | 2017-09-06 | 2018-01-19 | 江苏久祥汽车电器集团有限公司 | A kind of buffer unit of mechanically moving equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2238821Y (en) * | 1994-01-05 | 1996-10-30 | 崔子风 | Self-propelling expansion cargo boom of tower crane |
| CN2224191Y (en) * | 1995-02-13 | 1996-04-10 | 朱永奋 | Self-lifting tower crane capable of carrying person |
| IT1397585B1 (en) * | 2009-12-21 | 2013-01-16 | Soilmec Spa | ADAPTABLE MULTIFUNCTIONAL MACHINE FOR PERFORATION FOR DRILLING AND LIFTING. |
| CN104030171A (en) * | 2014-06-09 | 2014-09-10 | 成都绿迪科技有限公司 | Tower crane for civil engineering |
| CN206590782U (en) * | 2016-08-03 | 2017-10-27 | 江苏港益重工股份有限公司 | Steel wire rope jump prevention pressing wheel device at pulley |
| CN107555314B (en) * | 2017-08-24 | 2019-07-02 | 韶关市泰力起重机有限公司 | A kind of trolley limit damper of bridge crane |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606044A (en) * | 2017-09-06 | 2018-01-19 | 江苏久祥汽车电器集团有限公司 | A kind of buffer unit of mechanically moving equipment |
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