CN115744700A - Double-drum steel wire rope automatic tensioning mechanism and winch with same - Google Patents
Double-drum steel wire rope automatic tensioning mechanism and winch with same Download PDFInfo
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- CN115744700A CN115744700A CN202211409071.8A CN202211409071A CN115744700A CN 115744700 A CN115744700 A CN 115744700A CN 202211409071 A CN202211409071 A CN 202211409071A CN 115744700 A CN115744700 A CN 115744700A
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- wire rope
- steel wire
- drum
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Abstract
The invention discloses a double-rotary-drum steel wire rope automatic tensioning mechanism and a winch using the same, wherein the double-rotary-drum steel wire rope automatic tensioning mechanism comprises the following components: the tensioning mechanism, the traction tackle and the guide wheel are all arranged on the adjustable rack; the pulley block is respectively arranged on the adjustable frame and the traction tackle; the tensioning mechanism rotates, and the traction tackle is controlled by the steel wire rope and the pulley block to move back and forth on the adjustable rack. The double-rotating-drum self-tightening winch is provided with the double rotating drums, and the double rotating drums are matched with the braking assembly and the transmission assembly, so that the function of automatically tightening the steel wire rope pulley block of the winch in a non-vertical working state is realized, the traction force is large, the transmission is stable, and the cargo loading and unloading efficiency is improved.
Description
Technical Field
The invention relates to the technical field of winches, in particular to an automatic tensioning mechanism for a double-rotary-drum steel wire rope and a winch with the same.
Background
In import and export trade, cargos are loaded into and out of a container, a wooden box of the cargos to be loaded is generally lifted to a deck of the container by using a forklift, and then is pushed to be stacked in the container by using a manual forklift. When the weight of the goods is heavier and the length of the goods is longer, the forklift and the manual forklift cannot load and unload the goods, a professional wheel loader or a telescopic boom loader is used for hoisting the goods, but the extending arm and the hook have certain heights, so that the top layer in the container is required to be left empty, and the container cannot be fully loaded with the goods, so that the space is wasted;
the winch is generally used for lifting heavy objects in the construction fields of buildings, bridges, metallurgy, mines, oil fields and the like; when the hoisting machine is used for loading and unloading goods, the steel wire rope on the hoisting machine pushes and pulls the goods along the horizontal direction, and the goods are not tensioned by gravity, so that the phenomenon of loosening and disorder can occur.
Disclosure of Invention
The invention mainly solves the problems in the prior art, and provides the double-rotary-drum tensioning mechanism capable of solving the phenomenon of loosening of the steel wire rope.
The invention is realized by the following technologies:
the utility model provides an automatic straining device of two rotary drum wire rope, includes: the upper rotating cylinder and the lower rotating cylinder are arranged on the outer frame in a vertically opposite mode; two groups of steel wire ropes are wound on the upper rotary drum and the lower rotary drum in opposite directions.
The transmission assembly is arranged on one side of the upper rotary drum and one side of the lower rotary drum, and the brake assembly is arranged on the other side; when the device works, the transmission assembly drives the upper rotating drum and the lower rotating drum to rotate in the same direction, one rotating drum is screwed into the steel wire rope, the other rotating drum releases the steel wire rope, and the brake assembly applies preset brake force while releasing the steel wire rope, so that the functions of bidirectional traction and automatic tensioning are realized;
the transmission assembly includes: a driving gear and a driven gear; the driven gear is arranged on the same side of the upper rotary drum and the lower rotary drum; on the side, the upper rotary drum and the lower rotary drum are provided with driven bosses, and the driven gear is provided with an active boss matched with the driven bosses; the upper rotary drum and the lower rotary drum are subjected to mutual traction and stress of two groups of steel wire ropes in opposite directions, and a driven boss of the upper rotary drum is positioned on the left side of the driving boss and is in contact with the driving boss; the passive boss of the lower rotary drum is positioned at the right side of the active boss and is contacted with the active boss; the driving gear is meshed with the driven gears of the upper rotary drum and the lower rotary drum at the same time, so that the upper rotary drum and the lower rotary drum are driven to rotate in the same direction at the same time.
The brake assembly includes: the ratchet friction plate is fixed with a ratchet wheel, and is sleeved on the axle center of the other side of the upper rotary drum and the lower rotary drum through a bearing, and is pressed on the end surfaces of the upper rotary drum and the lower rotary drum through the pressure regulating spring and the plane bearing; the pawl is arranged in the radial direction of the ratchet wheel and is meshed with the ratchet wheel on the ratchet wheel friction sheet to restrict the rotation of the ratchet wheel friction sheet, and the pressure of the pressure regulating spring is regulated to tightly press the ratchet wheel friction sheet against the end surfaces of the upper rotary drum and the lower rotary drum; when braking, the ratchet wheel friction sheet is blocked by the pawl to brake and limit the rotation of the rotating drum; when the two-way steel wire rope works in a reverse direction, the other group of ratchet wheel friction sheets brake the other rotary drum to limit rotation, so that the two groups of two-way steel wire ropes always work in a tightened state.
When the upper and lower rotary drums rotate anticlockwise, the driving boss of the upper rotary drum is contacted with the driven boss to transmit torque, and the driving boss of the lower rotary drum is contacted with the driven boss but does not transmit torque; the upper rotating cylinder is screwed into the steel wire rope, a pawl of the upper rotating cylinder slides with the upper ratchet wheel friction sheet, the ratchet wheel friction sheet rotates along with the upper rotating cylinder, and the upper rotating cylinder is not braked by the ratchet wheel friction sheet; the steel wire rope of the lower rotary drum is pulled out by the traction of the steel wire rope of the upper rotary drum, the pawl of the lower rotary drum is in non-return connection with the lower ratchet wheel friction sheet, the lower ratchet wheel friction sheet brakes the lower rotary drum to limit the rotation of the lower rotary drum, when the steel wire rope of the upper rotary drum is loaded by heavy load, the steel wire rope per se physically extends, the driving lug boss and the driven lug boss of the lower rotary drum are gradually separated, and the lower rotary drum is braked by the friction of the lower ratchet wheel friction sheet to enable the steel wire rope wound by the lower ratchet wheel friction sheet to be incapable of loosening; otherwise, the same principle is applied.
A winch comprises a tensioning mechanism, an adjustable frame, a motor, a traction tackle, a pulley block and a guide wheel;
the height of the machine body of the adjustable rack can be adjusted, so that the loading and unloading of containers with different heights can be conveniently met; a movable rail is movably arranged at the front end of the adjustable rack, the height of the adjustable rack is adjusted, and the movable rail is fixed on a tail door hole of the container; the guide wheel is transversely arranged at the bottom of the adjustable rack, and the adjustable rack can move back and forth along the track to adjust the position of loading and unloading goods;
the tensioning mechanism and the motor are arranged at the rear end of the upper part of the adjustable rack, and the motor is in transmission connection with a driving gear in the tensioning mechanism to drive the driving gear to rotate; the traction tackle is slidably arranged on the inner side of the adjustable rack, the pulley blocks are arranged at two ends of the traction tackle and two ends of the adjustable rack, and the pulley block on the adjustable rack corresponds to the pulley block on the traction tackle; the steel wire rope is respectively wound on the upper rotating drum and the lower rotating drum, the steel wire rope of the upper rotating drum is wound back to the fixed pulley block at the rear end of the inner side of the rack through the movable pulley block at the rear of the traction tackle, and finally the steel wire rope is fixed on the ratchet wheel rope tightener arranged at the rear of the rack; the steel wire rope of the lower rotary drum winds back to the movable pulley block in front of the traction tackle through the fixed pulley block at the front end of the inner side of the rack, and is finally fixed on the steel wire rope fixed wedge iron positioned at the front end of the rack;
the motor drives the driving gear to rotate, the driving gear enables the upper rotary drum and the lower rotary drum to rotate in the same direction through the two driven gears, one of the upper rotary drum and the lower rotary drum is screwed into the steel wire rope, and the other one releases the steel wire rope, so that the traction tackle is driven to move in a reciprocating mode on the inner side of the adjustable rack, and loading and unloading are achieved;
furthermore, travel switches are arranged at two ends of the rack, the travel switches can control the motor to stop running, and when the traction tackle touches the travel switches, the motor stops and only can run in the opposite direction.
The invention has the beneficial effects that:
1. the invention has large traction force and stable transmission, and improves the efficiency of loading and unloading goods;
2. the double rotating drums are matched with the braking assembly and the transmission assembly, so that the function of automatically tensioning the steel wire rope pulley block of the winch under a non-vertical working state is realized.
Drawings
FIG. 1 is a front view of the tensioning mechanism of the present invention.
Fig. 2 is a top view of the tightening mechanism of the present invention.
Fig. 3 is a front view of the hoist of the present invention.
Fig. 4 is a left side view of the hoist of the present invention.
Fig. 5 is a plan view of the hoist according to the present invention.
The reference numerals mean:
1. a tensioning mechanism; 101. an outer frame; 102. an upper drum; 103. a lower drum; 104. a wire rope; 105. a driving gear; 106. a driven gear; 107. a passive boss; 108. an active boss; 109. a pressure regulating spring; 110. a flat bearing; 111. a ratchet wheel friction sheet; 112. a pawl; 2. an adjustable frame; 3. a worm gear reducer motor; 4. a traction tackle; 5. a pulley block; 6. a guide wheel; 7. a movable track; 8. a travel switch.
Detailed Description
In order to make the technical solution, object and advantages of the present invention more apparent, the present invention will be further explained with reference to the accompanying drawings and embodiments.
The utility model provides an automatic straining device of two rotary drum wire rope, includes: the outer frame 101, the upper rotary drum 102 and the lower rotary drum 103 are oppositely arranged on the outer frame 101 from top to bottom; two sets of cables 104 are wound around the upper drum 102 and the lower drum 103 in opposite directions.
The transmission assembly is arranged on one side of the upper rotary drum 102 and one side of the lower rotary drum 103, the upper rotary drum 102 and the lower rotary drum 103 are driven to rotate in the same direction through the transmission assembly during working, one rotary drum is screwed into the steel wire rope 104, the other rotary drum releases the steel wire rope 104, and a preset braking force is applied by the braking assembly while the steel wire rope 104 is released, so that the functions of bidirectional traction and automatic tensioning are realized;
the transmission assembly includes: a drive gear 105 and a driven gear 106; the driven gear 106 is arranged on the same side of the upper rotary drum 102 and the lower rotary drum 103; on the side, the upper rotary drum 102 and the lower rotary drum 103 are provided with driven bosses 107, and the driven gear 106 is provided with an active boss 108 matched with the driven boss 107; the upper rotary drum 102 and the lower rotary drum 103 are mutually pulled by two groups of steel wire ropes 104 in opposite directions, and the forced directions are opposite, and a driven boss 107 of the upper rotary drum 102 is positioned on the left side of a driving boss 108 and is in contact with the driving boss; the passive boss 107 of the lower drum 103 is positioned at the right side of the active boss 108 to contact with it; the driving gear 105 is engaged with the driven gears 106 of the upper and lower drums 102 and 103 at the same time, so as to drive the upper and lower drums 102 and 103 to rotate in the same direction at the same time.
The brake assembly includes: the ratchet wheel friction sheet 111 is fixed with a ratchet wheel, and is sleeved on the axle center of the other side of the upper rotary drum 102 and the lower rotary drum 103 through a bearing, and is pressed on the end surfaces of the upper rotary drum 102 and the lower rotary drum 103 through the pressure regulating spring 109 and the plane bearing 110; the pawl 112 is arranged in the radial direction of the ratchet wheel, is meshed with the ratchet wheel on the ratchet wheel friction sheet 111 and is used for restricting the rotation of the ratchet wheel friction sheet 111, and the pressure of the pressure regulating spring 109 is adjusted to tightly press the ratchet wheel friction sheet 111 against the end surfaces of the upper rotary drum 102 and the lower rotary drum 103; when braking, the ratchet wheel friction sheet 111 is subject to non-return by the pawl 112 to brake and limit the rotation of the rotary drum; when the two-way steel wire rope winding machine works in the reverse direction, the other group of ratchet wheel friction sheets 111 brake the other rotary drum to limit rotation, so that the two groups of two-way steel wire ropes 104 always work in a tightening state.
When the upper rotary drum 103 and the lower rotary drum 103 rotate anticlockwise, the driving boss 108 of the upper rotary drum 102 is in contact with the driven boss 107 to transmit torque, and the driving boss 108 of the lower rotary drum 103 is in contact with the driven boss 107 but does not transmit torque; the upper rotating drum 102 is screwed into the steel wire rope 104, the pawl 112 of the upper rotating drum 102 slides with the upper ratchet wheel friction sheet 111, the ratchet wheel friction sheet 111 rotates with the upper rotating drum 102, and the upper rotating drum 102 is not braked by the ratchet wheel friction sheet 111; the steel wire rope 104 of the lower rotary drum 103 is pulled out under the traction of the steel wire rope 104 of the upper rotary drum 102, the pawl 112 of the lower rotary drum 103 stops the lower ratchet wheel friction sheet 111, the lower ratchet wheel friction sheet 111 brakes the lower rotary drum 103 to limit the rotation of the lower rotary drum 103, when the steel wire rope 104 of the upper rotary drum 102 is loaded by heavy load, the self physical extension is realized, the driving lug boss 108 and the driven lug boss of the lower rotary drum 103 are gradually separated, and the lower rotary drum 103 is braked by the friction of the lower ratchet wheel friction sheet 111 to ensure that the steel wire rope 104 wound by the lower ratchet wheel friction sheet 111 cannot loosen; otherwise, the same principle is applied.
A hoist comprises a tensioning mechanism 1, an adjustable frame 2, a worm turbine speed reducing motor 3, a traction tackle 4, a pulley block and a guide wheel 6;
the height of the machine body of the adjustable frame 2 can be adjusted, so that the container loading and unloading of cargos with different heights can be conveniently met; a movable track 7 is arranged at the front end of the adjustable frame 2, the height of the adjustable frame 2 is adjusted, and the movable track 7 is fixed on a container tail door hole; the guide wheel 6 is transversely arranged at the bottom of the adjustable frame 2, and the adjustable frame 2 can move back and forth along the track to adjust the position of loading and unloading goods;
the tensioning mechanism 1 and the worm gear reducing motor 3 are arranged at the rear end of the upper part of the adjustable rack 2, and the worm gear reducing motor 3 is in transmission connection with a driving gear 105 in the tensioning mechanism 1 to drive the driving gear 105 to rotate; the traction tackle 4 is slidably arranged on the inner side of the adjustable rack 2, the pulley blocks 5 are arranged at two ends of the traction tackle 4 and two ends of the adjustable rack 2, and the pulley blocks 5 on the adjustable rack 2 correspond to the pulley blocks 5 on the traction tackle 4; the steel wire rope 104 is respectively wound on the upper rotary drum 102 and the lower rotary drum 103, the steel wire rope 104 of the upper rotary drum 102 is wound back to the pulley block 5 at the rear end of the inner side of the adjustable rack 2 through the pulley block 5 behind the traction tackle 4, and is finally fixed on the ratchet wheel rope tightener arranged behind the adjustable rack 2, the original state of the steel wire rope 104 is ensured to be in a tightening state through manually adjusting the ratchet wheel rope tightener, when the steel wire rope works for a long time and is extended due to metal fatigue, the front and rear groups of steel wire ropes can be tightened by properly adjusting the ratchet wheel rope tightener, and the steel wire rope is recovered to the original state; the steel wire rope 104 of the lower rotating drum 103 winds back to the pulley block 5 in front of the traction tackle 4 through the pulley block 5 at the front end of the inner side of the adjustable rack 2, and is finally fixed to the steel wire rope fixing wedge iron at the front end of the adjustable rack 2;
the worm gear reducing motor 3 drives the driving gear 105 to rotate, the driving gear 105 enables the upper rotary drum 102 and the lower rotary drum 103 to rotate in the same direction through two driven gears 106, one of the upper rotary drum 102 and the lower rotary drum 103 is screwed into the steel wire rope 104, and the other one releases the steel wire rope 104, so that the traction tackle 4 is driven to move in a reciprocating mode on the inner side of the adjustable rack 2, and loading and unloading are further achieved;
furthermore, two ends of the adjustable frame 2 are provided with travel switches 8, the travel switches 8 can control the stop of the worm gear reducer motor 3, and when the traction tackle 4 touches the travel switches 8, the worm gear reducer motor 3 stops and can only run in the opposite direction.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (7)
1. The utility model provides an automatic straining device of two rotary drum wire rope which characterized in that: the method comprises the following steps: the outer frame is arranged on the upper rotating cylinder and the lower rotating cylinder of the outer frame and used for winding the steel wire rope, and the transmission assembly and the brake assembly are arranged on one side of the upper rotating cylinder and one side of the lower rotating cylinder; the transmission assembly drives the upper rotary drum and the lower rotary drum to rotate to wind the steel wire rope or release the steel wire rope, and the braking assembly automatically brakes the upper rotary drum and the lower rotary drum.
2. The automatic tensioning mechanism for a double-drum steel wire rope according to claim 1, characterized in that: the transmission assembly includes: the driving gear is meshed with the driven gears of the upper rotary drum and the lower rotary drum simultaneously, so that the upper rotary drum and the lower rotary drum are driven to rotate in the same direction.
3. The double-drum steel wire rope automatic tensioning mechanism of claim 2, characterized in that: and one side of the upper rotary drum and one side of the lower rotary drum, which are provided with the driven gears, are provided with driven bosses, and the driven gears are provided with driving bosses matched with the driven bosses.
4. The double-drum steel wire rope automatic tensioning mechanism of claim 1, characterized in that: the brake assembly includes: the pressure regulating spring is arranged between the plane bearing and the ratchet wheel friction sheet, and the ratchet wheel friction sheet is pressed on the end surfaces of the upper rotary drum and the lower rotary drum so as to brake; the pawl is meshed with a ratchet wheel on the ratchet wheel friction sheet.
5. A hoist engine, characterized by: comprises the double-drum steel wire rope automatic tensioning mechanism according to any one of claims 1 to 4; further comprising: the adjustable machine frame, the traction tackle, the pulley block and the guide wheel; the tensioning mechanism, the traction tackle and the guide wheel are all arranged on the adjustable rack; the pulley block is respectively arranged on the adjustable frame and the traction tackle; the tensioning mechanism rotates, and the traction tackle is controlled by the steel wire rope and the pulley block to move back and forth on the adjustable rack.
6. The hoisting machine of claim 5, wherein: the adjustable rack is characterized in that a movable track is installed at the front end of the adjustable rack, and the adjustable rack can move back and forth along the movable track.
7. The hoisting machine as set forth in claim 5, wherein: and a travel switch is arranged on the rack and controls the motor to stop running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211409071.8A CN115744700A (en) | 2022-11-11 | 2022-11-11 | Double-drum steel wire rope automatic tensioning mechanism and winch with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211409071.8A CN115744700A (en) | 2022-11-11 | 2022-11-11 | Double-drum steel wire rope automatic tensioning mechanism and winch with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115744700A true CN115744700A (en) | 2023-03-07 |
Family
ID=85369300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211409071.8A Pending CN115744700A (en) | 2022-11-11 | 2022-11-11 | Double-drum steel wire rope automatic tensioning mechanism and winch with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115744700A (en) |
-
2022
- 2022-11-11 CN CN202211409071.8A patent/CN115744700A/en active Pending
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