CN110844819A - Hoisting mechanism rope pressing device and tower crane thereof - Google Patents
Hoisting mechanism rope pressing device and tower crane thereof Download PDFInfo
- Publication number
- CN110844819A CN110844819A CN201911307194.9A CN201911307194A CN110844819A CN 110844819 A CN110844819 A CN 110844819A CN 201911307194 A CN201911307194 A CN 201911307194A CN 110844819 A CN110844819 A CN 110844819A
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- China
- Prior art keywords
- rope pressing
- rope
- hoisting mechanism
- roller
- pressing roller
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention discloses a rope pressing device of a hoisting mechanism, which comprises a support, a rope pressing roller rotating shaft and a plurality of rollers, wherein the support is provided with a rope pressing roller; the rope pressing roller support is arranged on the support through an installation shaft, springs are assembled at two ends of the installation shaft, a rope pressing roller rotating shaft is arranged at the end of the rope pressing roller support, and a middle roller and an end roller which can freely rotate along the rope pressing roller rotating shaft are arranged on the rope pressing roller rotating shaft. The rope pressing device of the hoisting mechanism can be arranged on the underframe of the hoisting mechanism, welding is not needed, the rope pressing device generates pressure on a steel wire rope through a spring, the pressure is continuously pressed on the hoisting steel wire rope, the rope pressing roller can freely rotate along the rotating shaft of the rope pressing roller, the friction force between the hoisting steel wire rope and the roller is rolling friction, the abrasion of the steel wire rope on the roller is reduced, the width of the rope pressing roller is the same as that of the rotating drum, and the rope pressing device can play a role in the whole process of rope arrangement.
Description
Technical Field
The invention relates to a hoisting mechanism rope pressing device and a tower crane thereof, belonging to the field of crane equipment.
Background
The main working mechanism of the tower crane is a hoisting mechanism, a hoisting mechanism winding drum achieves the purpose of winding and unwinding steel wire ropes through rotation, and the steel wire ropes are arranged on the hoisting mechanism winding drum layer by layer. In practical application, the phenomenon of disorder of the steel wire ropes of the hoisting mechanism often occurs, namely the steel wire ropes cannot be regularly arranged according to a preset mode. The reason for rope disorder is analyzed, and the following points are generally included: 1) the hoisting steel wire ropes jump in the arranging process, so that the steel wire ropes cannot fall beside the arranged adjacent steel wire ropes; 2) the pre-tightening force of the hoisting steel wire rope arranged on the winding drum is insufficient, and the steel wire rope is easily extruded into the strand of the next layer of steel wire rope when the second layer is arranged.
At present, a rope arranging pulley in front of a hoisting mechanism is generally replaced by a rope arranging device, the rope arranging device limits a steel wire rope in four pulleys of an upper pulley, a lower pulley, a left pulley and a right pulley of a sliding seat by a mechanical method, the sliding seat drives the axis of a sliding drum to move back and forth through a reciprocating lead screw, the length limit of a designed lead screw is the width of the drum, the lead screw drives a chain wheel arranged on the drum through the transmission of gears and chain wheels, and the drum rotates for a circle to move for a steel wire rope pitch corresponding to the sliding seat.
The defects of the mode are as follows: the requirement on the rotating speed of the screw rod is high, and rope disorder is more serious if the speed is not matched; the structure is complicated, and the manufacturing cost is high; in the rope arranging process, the reciprocating motion of the rope arranging device is controlled by the lead screw, so that the rope arranging device is blocked frequently.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a rope pressing device of a hoisting mechanism, which plays a role in forcibly arranging a steel wire rope, does not generate rope skipping and can have certain pretightening force during rope arrangement. The invention also provides a tower crane provided with the hoisting mechanism rope pressing device.
In order to achieve the purpose, the rope pressing device of the hoisting mechanism comprises a support, a rope pressing roller rotating shaft and a plurality of rollers;
the rope pressing roller support is arranged on the support through an installation shaft, springs are assembled at two ends of the installation shaft, a rope pressing roller rotating shaft is arranged at the end of the rope pressing roller support, and a middle roller and an end roller which can freely rotate along the rope pressing roller rotating shaft are arranged on the rope pressing roller rotating shaft.
As an improvement, the middle roller and the end rollers are respectively arranged on a rotating shaft of the rope pressing roller through bearings.
As a modification, the bearings are spaced apart by spacers.
As an improvement, the rope pressing roller rotating shaft is fixed at the end part of the rope pressing roller bracket through a locking nut.
As an improvement, the bracket is provided with a plurality of strip holes.
In addition, the invention also provides a tower crane, which comprises a hoisting mechanism and a hoisting steel wire rope, wherein the hoisting mechanism comprises a hoisting mechanism winding drum, the hoisting steel wire rope is arranged on the hoisting mechanism winding drum, and the tower crane also comprises a hoisting mechanism rope pressing device;
the rope pressing device is installed on the underframe of the hoisting mechanism through a connecting bolt.
Compared with the prior art, the hoisting mechanism rope pressing device can be installed on a hoisting mechanism underframe and does not need welding, the rope pressing device generates pressure on a steel wire rope through a spring, the pressure is continuously pressed on the hoisting steel wire rope, the rope pressing roller can freely rotate along a rotating shaft of the rope pressing roller, the friction force between the hoisting steel wire rope and the roller is rolling friction, the abrasion of the steel wire rope on the roller is reduced, the width of the rope pressing roller is the same as that of a rotating drum, and the rope pressing device can play a role in the whole process of rope arrangement.
Drawings
FIG. 1 is a front view of the rope tensioner of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a schematic view of the installation of the rope pressing device of the present invention;
in the figure: 1. the device comprises a support, 2, a spring, 3, a rope pressing roller support, 4, a rope pressing roller rotating shaft, 5, an end roller, 6, a bearing, 7, a spacer bush, 8, a middle roller, 9, a locking nut, 10, a connecting bolt, 11, a lifting steel wire rope, 12, a lifting mechanism winding drum, 13, a rope pressing device, 14 and a bottom frame.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.
As shown in fig. 1, 2 and 3, a rope pressing device of a hoisting mechanism comprises a support 1, a rope pressing roller support 3, a rope pressing roller rotating shaft 4 and a plurality of rollers;
the rope pressing roller support 3 is arranged on the support 1 through an installation shaft, the rope pressing roller support 3 can rotate along the support 1, springs 2 are assembled at two ends of the installation shaft, the rope pressing roller support 3 rotates to a set direction along a hinge point under the action of the springs 2, and the rope pressing rollers are pressed on steel wire ropes with layers changing constantly by using the two springs 2; the rope pressing roller rotating shaft 4 is arranged at the end part of the rope pressing roller bracket 3, and a middle roller 8 and an end roller 5 which can freely rotate along the rope pressing roller rotating shaft 4 are arranged on the rope pressing roller rotating shaft 4.
As a modification of the embodiment, the middle roller 8 and the end roller 5 are respectively mounted on the rope pressing roller rotating shaft 4 through bearings 6, and the bearings 6 are separated by spacers 7. The rope pressing roller is divided into a middle roller 8 and an end roller 5, the width of the rope pressing roller is the same as that of the rotary drum, and the rope pressing device can play a role in the whole rope arranging process; the width of the rope pressing roller support 3 is controlled in a smaller range, so that the abrasion of the roller support to the lifting steel wire rope 11 can be reduced. The middle roller 8 and the end rollers 5 can be machined from iron seamless tubes.
As a modification of the embodiment, the rope pressing roller rotating shaft 4 is fixed at the end of the rope pressing roller bracket 3 through a lock nut 9, and the rope pressing roller rotating shaft 4 does not rotate during the operation.
In addition, the invention also provides a tower crane, as shown in fig. 4, comprising a hoisting mechanism and a hoisting steel wire rope 11, wherein the hoisting mechanism comprises a hoisting mechanism winding drum 12, the hoisting steel wire rope 11 is arranged on the hoisting mechanism winding drum 12, and the tower crane further comprises the hoisting mechanism rope pressing device;
the rope pressing device 13 is mounted on the base frame 14 of the hoisting mechanism through the connecting bolt 10.
Preferably, the support 1 is provided with a long hole for connection, so that the support can be conveniently connected with a hoisting mechanism, and certain installation errors can be allowed when the rope pressing device is connected with the underframe 14 of the hoisting mechanism.
The working principle is as follows: install the rope pressing device 13 in the below of hoisting mechanism reel 12, tip roller 5, middle part roller 8 hug closely under the effect of spring 2 on the surface of hoisting mechanism reel 12, because rope pressing roller support 3 can rotate along the support 1 of rope pressing device 13, when the number of piles of wire rope increases, tip roller 5, middle part roller 8 also increase and downstream along with the number of piles that rises wire rope 11, and press the surface at outer wire rope all the time, prevent that wire rope from beating, it increases the wire rope pretightning force to rise wire rope 11 when being drawn into hoisting mechanism reel 12 simultaneously.
The rope pressing device of the hoisting mechanism can be arranged on the underframe of the hoisting mechanism, welding is not needed, the rope pressing device generates pressure on a steel wire rope through a spring, the pressure is continuously pressed on the hoisting steel wire rope, the rope pressing roller can freely rotate along the rotating shaft of the rope pressing roller, the friction force between the hoisting steel wire rope and the roller is rolling friction, the abrasion of the steel wire rope on the roller is reduced, the width of the rope pressing roller is the same as that of the rotating drum, and the rope pressing device can play a role in the whole process of rope arrangement.
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 or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A hoisting mechanism rope pressing device is characterized by comprising a support (1), a rope pressing roller support (3), a rope pressing roller rotating shaft (4) and a plurality of rollers;
the rope pressing roller support is characterized in that the rope pressing roller support (3) is installed on the support (1) through an installation shaft, springs (2) are assembled at two ends of the installation shaft, a rope pressing roller rotating shaft (4) is installed at the end portion of the rope pressing roller support (3), and a middle roller (8) and an end roller (5) which can freely rotate along the rope pressing roller rotating shaft (4) are arranged on the rope pressing roller rotating shaft (4).
2. A hoisting mechanism roping arrangement as claimed in claim 1, characterized in that said middle roller (8) and said end rollers (5) are mounted on the roping roller shafts (4) by means of bearings (6), respectively.
3. A hoisting mechanism roping arrangement as claimed in claim 2, characterized in that the bearings (6) are spaced apart by spacers (7).
4. A hoisting mechanism roping arrangement as claimed in claim 1, characterised in that the roping roller axle (4) is secured to the end of the roping roller support (3) by means of a lock nut (9).
5. A hoisting mechanism rope pressing device as claimed in claim 1, wherein the support (1) is provided with a plurality of elongated holes.
6. A tower crane comprises a hoisting mechanism and hoisting steel wire ropes (11), wherein the hoisting mechanism comprises hoisting mechanism winding drums (12), and the hoisting steel wire ropes (11) are arranged on the hoisting mechanism winding drums (12);
the hoisting mechanism rope pressing device is characterized by further comprising a hoisting mechanism rope pressing device as claimed in any one of claims 1 to 5; the rope pressing device (13) is installed on an underframe (14) of the hoisting mechanism through a connecting bolt (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911307194.9A CN110844819A (en) | 2019-12-18 | 2019-12-18 | Hoisting mechanism rope pressing device and tower crane thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911307194.9A CN110844819A (en) | 2019-12-18 | 2019-12-18 | Hoisting mechanism rope pressing device and tower crane thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110844819A true CN110844819A (en) | 2020-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911307194.9A Pending CN110844819A (en) | 2019-12-18 | 2019-12-18 | Hoisting mechanism rope pressing device and tower crane thereof |
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| Country | Link |
|---|---|
| CN (1) | CN110844819A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115650092A (en) * | 2022-10-25 | 2023-01-31 | 徐州建机工程机械有限公司 | Rope tightening device and tower crane |
-
2019
- 2019-12-18 CN CN201911307194.9A patent/CN110844819A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115650092A (en) * | 2022-10-25 | 2023-01-31 | 徐州建机工程机械有限公司 | Rope tightening device and tower crane |
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