CN219031619U - Steel wire rope pre-tightening device for crane roller - Google Patents
Steel wire rope pre-tightening device for crane roller Download PDFInfo
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- CN219031619U CN219031619U CN202223057616.1U CN202223057616U CN219031619U CN 219031619 U CN219031619 U CN 219031619U CN 202223057616 U CN202223057616 U CN 202223057616U CN 219031619 U CN219031619 U CN 219031619U
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Abstract
The device comprises a machine base, wherein a main guide wheel is arranged on the machine base, the main guide wheel is connected with a damping stop mechanism through a main shaft transmission, and an adjustable auxiliary guide wheel is correspondingly arranged in front of the main guide wheel; the wheel surfaces of the main guide wheel and the adjustable auxiliary guide wheel are provided with rope grooves; the damping stop mechanism comprises a stop cylinder, a piston is arranged in the stop cylinder, the piston is movably connected with a crankshaft arranged outside the stop cylinder through a connecting rod movable rod, and the stop cylinder is provided with an air inlet regulating valve and an air outlet regulating valve; the main shaft of the main guide wheel is in transmission connection with the crankshaft. The steel wire rope pre-tightening device for the crane roller aims at solving the technical defect of the pre-tightening control of the steel wire rope in the operation and maintenance operation of the existing crane.
Description
Technical Field
The utility model relates to the technical field of crane drum steel wire rope replacement or maintenance of auxiliary devices.
Background
The crane often encounters roller wire rope and changes the operation during operation and maintenance operation, and the new wire rope is rolled up to the roller and needs to have certain pretightening force, so that the wire rope rolled up on the roller can be neat and tight, the adverse phenomena of rope disorder, rope tightening, rope skipping and the like are avoided, the hoisting safety is ensured, and the service life of the wire rope is prolonged.
The existing common pre-tightening method is to wind the hemp rope on the steel wire rope to drag manually, the practical effect is that the hemp rope slips or drag force is unstable, the first layer of the roller rope arrangement looks neat and tight, when the hemp rope is wound on the second and more layers, the positioning of the roller rope grooves is not needed, the finally coiled steel wire rope has flashing seams, loosening and even rope disorder, and the rope tightening phenomenon occurs at a high probability when a new rope replaced by the crane is put in. The other common method is to use a clamp to clamp a new rope to increase drag resistance so as to realize pre-tightening of the steel rope, and the contact part of the clamp and the steel rope is made of polytetrafluoroethylene material so as to prevent the steel rope from being physically damaged.
Disclosure of Invention
In summary, the utility model aims to solve the technical defect of the prior crane operation and maintenance, and provides a crane roller steel wire rope pre-tightening device.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the steel wire rope pre-tightening device for the crane roller is characterized by comprising a machine base, wherein a main guide wheel is arranged on the machine base, the main guide wheel is connected with a damping stop mechanism through a main shaft transmission, and an adjustable auxiliary guide wheel is correspondingly arranged in front of the main guide wheel; the wheel surfaces of the main guide wheel and the adjustable auxiliary guide wheel are provided with rope grooves; the damping stop mechanism comprises a stop cylinder, a piston is arranged in the stop cylinder, the piston is movably connected with a crankshaft arranged outside the stop cylinder through a connecting rod movable rod, and the stop cylinder is provided with an air inlet regulating valve and an air outlet regulating valve; the main shaft of the main guide wheel is in transmission connection with the crankshaft.
The technical scheme for further limiting the utility model comprises the following steps:
the wheel surfaces of the main guide wheel and/or the adjustable auxiliary guide wheel are provided with V-shaped rope grooves, and rubber cushion layers are arranged in the rope grooves.
And a gear reducer is arranged between the main shaft of the main guide wheel and the crankshaft.
The machine seat is provided with an auxiliary wheel bracket which is connected with a supporting shaft of the adjustable auxiliary guide wheel through a lifting adjustable screw rod structure.
The main guide wheel is a cast steel pulley with the diameter of 80 cm.
The adjustable auxiliary guide wheel is a pulley with the diameter of 30 cm.
The gear reducer is a JQZ type gear reducer with three-stage speed change.
The machine base is movably connected with the main shaft of the main guide wheel through a main shaft bracket; the front side of the bottom of the main shaft bracket is movably connected with the machine base through a hinge structure, and a tension meter is arranged between the rear side of the bottom of the main shaft bracket and the machine base.
The machine base is movably connected with the main shaft of the main guide wheel through a main shaft bracket; the back side of the bottom of the main shaft bracket is movably connected with the machine base through a hinge structure, and a pressure gauge is arranged between the front side of the bottom of the main shaft bracket and the machine base.
The device also comprises a controller connected with the tension meter or the pressure meter, wherein the controller is connected with an air inlet regulating driving mechanism for controlling the air inlet amount of the air inlet regulating valve and an air outlet regulating driving mechanism for controlling the air outlet amount of the air outlet regulating valve.
The beneficial effects of the utility model are as follows: the main guide wheel, the damping stop mechanism and the adjustable auxiliary guide wheel form a structure similar to a winch, the winch is changed from driving equipment to driven equipment, the power source of the winch is changed into the damping stop mechanism for providing pre-tightening resistance, the pre-tightening force of the steel wire rope can be changed by changing the opening of the air inlet regulating valve and the air outlet regulating valve on the stop cylinder, the smaller opening is the larger the stop force, the larger the drag force of the steel wire rope is, the constant pre-tightening force can be realized, and the quick-wear parts are not required to be frequently replaced, so that the device has good effect when being applied to pre-tightening the steel wire rope of the crane drum.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic perspective view of a damping stop mechanism according to the present utility model;
FIG. 3 is a schematic view of the internal structure of the damping stop mechanism of the present utility model;
fig. 4 is a schematic structural diagram of the present utility model in application.
Detailed Description
The structure of the present utility model will be further described with reference to the accompanying drawings and preferred embodiments of the present utility model.
Referring to fig. 1 to 4, the utility model discloses a pre-tightening device for a steel wire rope of a crane roller, which comprises a machine base 1, wherein a main guide wheel 2 is arranged on the machine base 1, the main guide wheel 2 is in transmission connection with a damping stop mechanism 6 through a main shaft 21, and an adjustable auxiliary guide wheel 3 is correspondingly arranged in front of the main guide wheel 2.
The wheel surfaces of the main guide wheel 2 and the adjustable auxiliary guide wheel 3 are provided with rope grooves 20; when the novel steel wire rope pre-tightening device is used, after the novel steel wire rope 4 is pulled out, the novel steel wire rope is wound on the main guide wheel 2 after passing through the adjustable auxiliary guide wheel 3, then the novel steel wire rope is connected with the crane roller 5, the resistance of the main guide wheel 2 can be adjusted through the damping stop mechanism 6, the steel wire rope pre-tightening force can be adjusted in the releasing process of the novel steel wire rope 4, and the pre-tightening force can be kept constant after the required force is adjusted. In order to enable the utility model to meet the use requirements of steel wire ropes of various specifications, simultaneously, the friction force between the steel wire rope and the rope groove 20 is increased, the occurrence of sliding ropes caused by overlarge stopping force is prevented, the wheel surface of the main guide wheel is provided with a V-shaped rope groove, and a rubber cushion layer is arranged in the rope groove. The effect of adjustable auxiliary guiding wheel 3 is except guiding new wire rope 4 to wind from new wire rope to leading guiding wheel 2, still is used for adjusting new wire rope 4 and leading guiding wheel 2 contact surface, and the bigger the contact surface, the better the antiskid rope effect, and the rope groove of adjustable auxiliary guiding wheel 3's wheel face can adopt V type rope groove equally. The adjustable auxiliary guide wheel 3 realizes the contact surface of the new steel wire rope 4 and the main guide wheel 2, and the specific implementation structure can be as follows: the machine base 1 is provided with an auxiliary wheel bracket 31, and the auxiliary wheel bracket 31 is connected with a supporting shaft of the adjustable auxiliary guide wheel 3 through a lifting adjustable screw rod structure 32. When the height of the auxiliary guide wheel 3 is adjusted through lifting the adjustable screw rod structure 32 in a threaded manner, the contact surface of the new steel wire rope 4 and the main guide wheel 2 can be increased, and the contact surface of the new steel wire rope 4 and the main guide wheel 2 is reduced when the steel wire rope descends. In the specific implementation process, the preferable scheme is as follows: the main guide wheel 2 is a cast steel pulley with the diameter of 80 cm. The adjustable auxiliary guide wheel 3 is a pulley with the diameter of 30 cm.
The damping stop mechanism 6 comprises a stop cylinder 61, a piston 62 is arranged in the stop cylinder 61, the piston 62 is movably connected with a crankshaft 64 arranged outside the stop cylinder through a connecting rod 63 and a movable rod, and an air inlet regulating valve 65 and an air outlet regulating valve 66 are arranged on the stop cylinder 61; the main shaft of the main guide wheel 2 is in transmission connection with the crankshaft 21. The damping stop mechanism 6 is similar to the engine in structure, except that the engine utilizes in-cylinder fuel combustion to push a piston to move, the piston outputs kinetic energy through a crankshaft, the main guide wheel 2 obtains kinetic energy to drive the crankshaft 64 to move, the crankshaft drives the piston 62 to move through a connecting rod 63, the opening degree of an air inlet regulating valve 65 and an air outlet regulating valve 66 determines the reciprocating resistance of the piston, and finally the pretightening force of a steel wire rope is changed. The air inlet regulating valve 65 is realized by adopting the elastic force exerted by a closing spring of an air inlet valve plate at the inner side of the air inlet of the control pull rod regulating cylinder body. The exhaust adjusting valve 66 is realized by adjusting the elastic force applied by an opening spring of an exhaust valve plate applied to the outer side of the exhaust port of the cylinder body by an exhaust adjusting nut.
In the concrete implementation process, in order to be suitable for winding the steel wire rope by the crane roller with overlarge stopping force, the damping stopping mechanism 6 is prevented from being damaged due to overlarge stress. As shown in fig. 1, a gear reducer 7 may be further provided between the main shaft of the main guide wheel 2 and the crankshaft 64. The piston 62 of the damping stop mechanism 6 is matched with larger stop force on the main guide wheel 2 in a high-speed reciprocating way, so that the whole volume of the damping stop mechanism 6 is reduced. The gear reducer 7 can adopt a JQZ type 350 gear reducer with three-stage speed change.
In the specific implementation process, in order to realize detection and display of the steel wire rope pretightening force so as to accurately adjust the steel wire rope pretightening force, the machine base 1 is movably supported and connected with a main shaft of the main guide wheel through a main shaft bracket; the front side of the bottom of the main shaft bracket is movably connected with the machine base through a hinge structure, a tension meter is arranged between the rear side of the bottom of the main shaft bracket and the machine base, and a controller can display the pretightening force of the steel wire rope in real time through a signal output by the tension meter. Or the machine base is movably connected with the main shaft of the main guide wheel through a main shaft bracket; the rear side of the bottom of the main shaft support is movably connected with the machine base through a hinge structure, a pressure gauge is arranged between the front side of the bottom of the main shaft support and the machine base, and the controller can display the pretightening force of the steel wire rope in real time through a signal output by the pressure gauge.
In order to realize automatic control, the utility model also comprises a controller connected with the tension meter or the pressure meter, wherein the controller is connected with an air inlet regulating driving mechanism for controlling the air inlet amount of the air inlet regulating valve and an air outlet regulating driving mechanism for controlling the air outlet amount of the air outlet regulating valve by inputting the required pretightening force of the steel wire rope.
In addition, in the concrete implementation process, a steel wire rope lubricating grease smearing device can be additionally arranged on the steel wire rope transmission path according to the requirement, so that the steel wire rope is convenient to maintain and operate. The components are integrated on the machine base 1 with a special steel structure, and the whole machine is provided with the lifting lug and the forklift jack, so that the transportation and the transfer are convenient, the use is convenient, and the maintenance cost is low.
Claims (10)
1. The steel wire rope pre-tightening device for the crane roller is characterized by comprising a machine base, wherein a main guide wheel is arranged on the machine base, the main guide wheel is connected with a damping stop mechanism through a main shaft transmission, and an adjustable auxiliary guide wheel is correspondingly arranged in front of the main guide wheel; the wheel surfaces of the main guide wheel and the adjustable auxiliary guide wheel are provided with rope grooves; the damping stop mechanism comprises a stop cylinder, a piston is arranged in the stop cylinder, the piston is movably connected with a crankshaft arranged outside the stop cylinder through a connecting rod movable rod, and the stop cylinder is provided with an air inlet regulating valve and an air outlet regulating valve; the main shaft of the main guide wheel is in transmission connection with the crankshaft.
2. The crane drum wire rope pretensioning device according to claim 1, characterized in that: the wheel surfaces of the main guide wheel and/or the adjustable auxiliary guide wheel are provided with V-shaped rope grooves, and rubber cushion layers are arranged in the rope grooves.
3. The crane drum wire rope pretensioning device according to claim 1, characterized in that: and a gear reducer is arranged between the main shaft of the main guide wheel and the crankshaft.
4. The crane drum wire rope pretensioning device according to claim 1, characterized in that: the machine seat is provided with an auxiliary wheel bracket which is connected with a supporting shaft of the adjustable auxiliary guide wheel through a lifting adjustable screw rod structure.
5. The crane drum wire rope pretensioning device according to claim 1, characterized in that: the main guide wheel is a cast steel pulley with the diameter of 80 cm.
6. A crane drum wire rope pretensioning apparatus according to claim 1 or 5, characterized in that: the adjustable auxiliary guide wheel is a pulley with the diameter of 30 cm.
7. A crane drum wire rope pretensioning apparatus according to claim 3, characterized in that: the gear reducer is a JQZ type gear reducer with three-stage speed change.
8. The crane drum wire rope pretensioning device according to claim 1, characterized in that: the machine base is movably connected with the main shaft of the main guide wheel through a main shaft bracket; the front side of the bottom of the main shaft bracket is movably connected with the machine base through a hinge structure, and a tension meter is arranged between the rear side of the bottom of the main shaft bracket and the machine base.
9. The crane drum wire rope pretensioning device according to claim 1, characterized in that: the machine base is movably connected with the main shaft of the main guide wheel through a main shaft bracket; the back side of the bottom of the main shaft bracket is movably connected with the machine base through a hinge structure, and a pressure gauge is arranged between the front side of the bottom of the main shaft bracket and the machine base.
10. The crane drum wire rope pretensioning device according to claim 8, wherein: the device also comprises a controller connected with the tension meter, wherein the controller is connected with an air inlet regulating driving mechanism for controlling the air inlet amount of the air inlet regulating valve and an air outlet regulating driving mechanism for controlling the air outlet amount of the air outlet regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223057616.1U CN219031619U (en) | 2022-11-17 | 2022-11-17 | Steel wire rope pre-tightening device for crane roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223057616.1U CN219031619U (en) | 2022-11-17 | 2022-11-17 | Steel wire rope pre-tightening device for crane roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219031619U true CN219031619U (en) | 2023-05-16 |
Family
ID=86278974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223057616.1U Active CN219031619U (en) | 2022-11-17 | 2022-11-17 | Steel wire rope pre-tightening device for crane roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219031619U (en) |
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2022
- 2022-11-17 CN CN202223057616.1U patent/CN219031619U/en active Active
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