CN117430039A - Rope system for changing amplitude - Google Patents
Rope system for changing amplitude Download PDFInfo
- Publication number
- CN117430039A CN117430039A CN202311366505.5A CN202311366505A CN117430039A CN 117430039 A CN117430039 A CN 117430039A CN 202311366505 A CN202311366505 A CN 202311366505A CN 117430039 A CN117430039 A CN 117430039A
- Authority
- CN
- China
- Prior art keywords
- amplitude
- wire rope
- steel wire
- pulley
- pulleys
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 80
- 239000010959 steel Substances 0.000 claims abstract description 80
- 239000000725 suspension Substances 0.000 claims abstract description 4
- 238000012423 maintenance Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- B66C23/82—Luffing gear
Abstract
The invention provides a rope system for changing amplitude, which comprises a steel wire rope, two amplitude-variable winches, two amplitude-variable pulley blocks and a steel wire rope connecting device, wherein the steel wire rope connecting device is arranged between the two amplitude-variable pulley blocks, the amplitude-variable winches are arranged on a rotary platform, the amplitude-variable pulley blocks comprise a first amplitude-variable pulley frame and a second amplitude-variable pulley frame, the first amplitude-variable pulley frame is arranged at the head part of a suspension arm, the second amplitude-variable pulley frame is arranged on a tripod, one end of the steel wire rope is connected to the amplitude-variable winch, and the other end of the steel wire rope bypasses the amplitude-variable pulley frame and is fixedly connected with the steel wire rope connecting device.
Description
Technical Field
The invention relates to the technical field of crane steel wire ropes, in particular to a rope system for changing amplitude.
Background
With the development of social industry, the amplitude variation mode of the crane mainly comprises two modes of hydraulic cylinder amplitude variation and steel wire rope amplitude variation, and meanwhile, the amplitude variation of the movable arm crane is used for controlling the winding and unwinding of the amplitude variation steel wire rope, the rope-unified type inhaul cable is a flexible whole steel wire rope, the whole steel wire rope of the traditional rope type inhaul cable needs to be scrapped completely if damaged, and the problems of easy corrosion, difficult maintenance, complicated detection and short service life exist. The rigid luffing cable system comprises a luffing movable pulley block positioned right above the middle part of the crane boom, a segmented splicing rigid luffing cable hinged between the luffing movable pulley block and the head part of the crane boom, and a luffing steel wire rope wound between the luffing movable pulley block and the luffing winch and commutated by a steering fixed pulley; the segmented splicing rigid luffing inhaul cable is of a chain structure formed by sequentially hinging a plurality of segments of pull plates end to end through double-hole double-chain plates and pin shafts.
In the document, a segmented splicing type rigid luffing cable is used for replacing a rope type cable in a traditional luffing system, so that the performance is stable, and the overhaul and the maintenance are convenient; however, the structure only receives and releases the steel wire rope through a single amplitude-variable winch to change the elevation angle change of the crane boom so as to change the amplitude, the structure of the crane boom is inevitably affected to a certain extent in the process, and meanwhile, the single amplitude-variable winch is only used, so that the changed amplitude is limited, and the wide-range amplitude variation cannot be met.
Disclosure of Invention
The invention aims to provide a rope system for changing amplitude, which has a wide range of changing amplitude and can reduce the influence on a crane arm structure.
In order to achieve the above purpose, the amplitude-changing rope system comprises two steel wire ropes, two amplitude-changing winches, two amplitude-changing pulley blocks and a steel wire rope connecting device, wherein the steel wire rope connecting device is arranged between the two amplitude-changing pulley blocks, the amplitude-changing winches are arranged on a rotating platform, the amplitude-changing pulley blocks comprise a first amplitude-changing pulley frame and a second amplitude-changing pulley frame, the first amplitude-changing pulley frame is arranged at the head of a suspension arm, the second amplitude-changing pulley frame is arranged on a tripod, the first amplitude-changing pulley frame comprises more than two first pulleys and a second pulley, the second amplitude-changing pulley frame comprises a third pulley, one end of one steel wire rope is connected to the one amplitude-changing winch, the other end of the one steel wire rope bypasses the first pulley and the third pulley after being discharged, then is fixedly connected with one end of the steel wire rope connecting device through the second pulley, one end of the other steel wire rope is connected to the other amplitude-changing winch, the other end of the other steel wire rope bypasses the first pulley and the third pulley after being discharged, and then is fixedly connected with the other end of the steel wire rope connecting device through the second pulley.
According to the arrangement, the amplitude winch is arranged on the rotary platform, and one end of the steel wire rope is connected with the amplitude winch, so that the steel wire rope can have different amplitude through the output of the amplitude winch; in addition, the other ends of the steel wire ropes are fixedly connected with the steel wire rope connecting device, so that the steel wire ropes of two different amplitude-variable winches are respectively and fixedly connected with the steel wire rope connecting device by bypassing the amplitude-variable pulley block, further, the different steel wire ropes are connected into a whole through the steel wire rope connecting device, acting forces in the steel wire ropes with different amplitude amplitudes are the same, and the steel wire ropes with different amplitude amplitudes are connected into a whole through the steel wire rope connecting device after being wound around the amplitude-variable pulley block, so that the stability is better.
Further, the first amplitude pulley frame and the second amplitude pulley frame are arranged in parallel relatively.
Above set up, be convenient for wire rope twines.
Further, the first pulleys are horizontally arranged side by side, and the second pulleys are arranged below the first pulleys and are perpendicular to the first pulleys.
The device is convenient for the steel wire rope to bypass the first pulley in the first amplitude pulley frame, then pass through the second amplitude pulley frame and finally realize fixed clamping with the steel wire rope connecting device through the second pulley in the first amplitude pulley frame.
Further, the steel wire rope connecting device comprises two wedge-shaped connectors and two connecting pieces, wherein the two wedge-shaped connectors are positioned on the same horizontal axis and are oppositely arranged, and the two wedge-shaped connectors are respectively clamped with two ends of the connecting pieces.
The above arrangement facilitates the connection of two oppositely arranged wedge-shaped joints by the connecting piece.
Further, the one end that the wedge connects is the wedge setting, the other end that the wedge connects is equipped with two bulge, and two bulge parallel relative settings are in the both sides of the wedge connects the other end, and the bulge includes gasket and card lug, the one end of card lug with gasket fixed connection, the other end of card lug outwards extends the setting.
Above setting can make wire rope's one end pass behind the wedge joint like this and tie up to make wire rope can not the slippage wedge joint, can be convenient for wedge joint and connecting piece carry out the joint simultaneously.
Further, bayonet sockets matched with the card convex blocks are arranged at two ends of the connecting piece, and the bayonet sockets are sleeved on the card convex blocks to realize clamping.
The above arrangement facilitates the connection of the connecting piece to the two wedge-shaped connectors through the bayonet, so that the two wedge-shaped connectors are connected into a whole.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic structural view of a wire rope connection device according to the present invention.
Fig. 3 is a cross-sectional view of a wire rope connection means in the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1 to 3, an amplitude steel wire rope device comprises a steel wire rope, two amplitude winch 1, two amplitude pulley blocks and a steel wire rope connecting device 2, wherein the steel wire rope connecting device 2 is arranged between the two amplitude pulley blocks, in the embodiment, proximity switches (not shown in the drawing) are arranged at two sides of the steel wire rope connecting device 2, and the proximity switches are arranged between the amplitude pulley blocks and the steel wire rope connecting device 2, so that the horizontal movement of the steel wire rope connecting device 2 is limited by the proximity switches, the phenomenon that the steel wire rope is unidirectionally moved leftwards or rightwards after being integrally connected by the steel wire rope connecting device 2, so that the amplitude of the steel wire rope is uneven due to the fact that the steel wire rope is only deviated to one side is prevented, the luffing winch 1 is fixedly arranged on a rotary platform (not shown in the figure), the luffing pulley block comprises a first luffing pulley frame 31 and a second luffing pulley frame 32, the first luffing pulley frame 31 is fixedly arranged at the head of a suspension arm (not shown in the figure), the second luffing pulley frame 32 is fixedly arranged on a tripod (not shown in the figure), the first luffing pulley frame 31 and the second luffing pulley frame 32 are relatively parallel, so that the steel wire rope is convenient to wind later, the first luffing pulley frame 31 comprises a first pulley and a second pulley 312 311, in the embodiment, the first pulley 311 is provided with 6 pulleys which are horizontally and coaxially arranged side by side, the second pulley 312 is arranged as 1 pulley and is positioned at the bottom of the first pulley 311, meanwhile, the second pulley 312 is vertically arranged with the first pulley 311, so that the steel wire rope is convenient to wind around the second luffing pulley frame 32, the second pulley 312 is connected to one end of the wire rope connecting means 2, and in this embodiment, the second amplitude pulley frame 32 includes 6 third pulleys 321, and the third pulleys 321 are coaxially arranged side by side horizontally.
In this embodiment, the wire rope connecting device 2 includes two wedge joints 21 and two connecting pieces 22, two wedge joints 21 set up relatively, just two wedge joints 21 are in on the same horizontal axis, the one end of wedge joint 21 is the wedge setting, the other end of wedge joint 21 is equipped with two bulge 211, in this embodiment, the inside of wedge joint 21 sets up to hollow structure, so be convenient for wire rope pass wedge joint 21 and through tying knots with wire rope to make wire rope unable slippage wedge joint 21, two bulge 211 parallel relative arrangement are in the both sides of wedge joint 21 other end, in this embodiment, two bulge 211 coaxial arrangement, bulge 211 includes gasket 4 and card lug 5, gasket 4 is fixed the outside of wedge joint 21 other end, the one end of card lug 5 with gasket 4 fixed connection, the other end of card lug 5 outwards extend and with gasket 4 sets up perpendicularly, the both ends of connecting piece 22 are equipped with card lug 5 and tie-in knots, thereby make wire rope unable slippage wedge joint 21, thereby realize that the bayonet joint is connected with two bayonet socket 21 is connected with two bayonet socket 221 on two bayonet joint 21 respectively to realize that two bayonet joint 21 are convenient for the realization.
In this embodiment, the number of the steel wire ropes is 2, one end of one steel wire rope 6 is connected and wound on one amplitude winch, the other end of one steel wire rope 6 bypasses the amplitude pulley frame and finally passes through the second pulley 312 to be connected with one end of the steel wire rope connecting device 2 in a clamping manner, one end of the other steel wire rope 7 is connected and wound on the other amplitude winch, the other end of the other steel wire rope 7 bypasses the amplitude pulley frame and finally passes through the second pulley 312 to be connected with the other end of the steel wire rope connecting device 2 in a clamping manner, and one steel wire rope 6 is connected with the other steel wire rope 7 through the steel wire rope connecting device 2 to form a whole.
The working principle of the invention is as follows: the two wedge-shaped connectors 21 are clamped through the connecting piece 22 to form an integral steel wire rope connecting device 2, then one end of one steel wire rope 6 is connected and wound on one amplitude winch, the other end of the one steel wire rope 6 bypasses an amplitude pulley frame and one end of the steel wire rope connecting device 2 to achieve clamping connection, one end of the other steel wire rope 7 is connected and wound on the other amplitude winch, the other end of the other steel wire rope 7 bypasses the amplitude pulley frame and the other end of the steel wire rope connecting device 2 to achieve clamping connection, so that acting forces in two steel wire ropes with different amplitudes are the same, the two steel wire ropes with different amplitudes are connected through the steel wire rope connecting device 2 after being wound on an amplitude pulley block to form an integral stability, and meanwhile, proximity switches (not marked in the drawing) are arranged on two sides of the steel wire rope connecting device 2, so that the steel wire ropes can be prevented from moving leftwards or rightwards in a unidirectional mode, and the steel wire ropes are only deviated to one side to cause the amplitude of the steel wire ropes to be uneven.
Claims (6)
1. The utility model provides a change range and use rope system, includes two wire rope, two amplitude winch, two amplitude assembly pulley and wire rope connecting device, its characterized in that: the steel wire rope connecting device is arranged between the two amplitude pulley blocks, the amplitude winch is arranged on the rotary platform, the amplitude pulley blocks comprise a first amplitude pulley frame and a second amplitude pulley frame, the first amplitude pulley frame is arranged at the head of the suspension arm, the second amplitude pulley frame is arranged on the tripod, the first amplitude pulley frame comprises more than two first pulleys and second pulleys, the second amplitude pulley frame comprises a third pulley, one end of one steel wire rope is connected to one amplitude winch, the other end of the one steel wire rope bypasses the first pulleys and the third pulleys after being out of the rope, then is fixedly connected with one end of the steel wire rope connecting device through the second pulley, one end of the other steel wire rope is connected to the other amplitude winch, and bypasses the first pulleys and the third pulleys after being out of the rope, and then is fixedly connected with the other end of the steel wire rope through the second pulley.
2. A rope system for varying amplitude as claimed in claim 1, wherein: the first amplitude pulley frame and the second amplitude pulley frame are relatively parallel.
3. A rope system for varying amplitude as claimed in claim 2, wherein: the first pulleys are horizontally arranged side by side, and the second pulleys are arranged below the first pulleys and are perpendicular to the first pulleys.
4. A rope system for varying amplitude as claimed in claim 1, wherein: the steel wire rope connecting device comprises two wedge-shaped connectors and two connecting pieces, wherein the two wedge-shaped connectors are positioned on the same horizontal axis and are oppositely arranged, and the two wedge-shaped connectors are respectively clamped with two ends of the connecting pieces.
5. A rope system for varying amplitude as claimed in claim 4, wherein: the one end that wedge connects is the wedge setting, the other end that wedge connects is equipped with two bulge, and two bulge parallel relative settings are in the both sides of wedge connects the other end, and the bulge includes gasket and card lug, the one end of card lug with gasket fixed connection, the other end of card lug outwards extends the setting.
6. A rope system for varying amplitude as claimed in claim 4, wherein: the two ends of the connecting piece are provided with bayonets matched with the card convex blocks, and the bayonets are sleeved on the card convex blocks to realize clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311366505.5A CN117430039A (en) | 2023-10-20 | 2023-10-20 | Rope system for changing amplitude |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311366505.5A CN117430039A (en) | 2023-10-20 | 2023-10-20 | Rope system for changing amplitude |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117430039A true CN117430039A (en) | 2024-01-23 |
Family
ID=89557644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311366505.5A Pending CN117430039A (en) | 2023-10-20 | 2023-10-20 | Rope system for changing amplitude |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117430039A (en) |
-
2023
- 2023-10-20 CN CN202311366505.5A patent/CN117430039A/en active Pending
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