CN206014294U - Landing power-off and the double speed crane of overload freight weight limit - Google Patents
Landing power-off and the double speed crane of overload freight weight limit Download PDFInfo
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- CN206014294U CN206014294U CN201621067711.1U CN201621067711U CN206014294U CN 206014294 U CN206014294 U CN 206014294U CN 201621067711 U CN201621067711 U CN 201621067711U CN 206014294 U CN206014294 U CN 206014294U
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- rope roll
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Abstract
The utility model discloses the double speed crane of a kind of landing power-off and overload freight weight limit, described lift heavy mechanism includes motor (15), controller (30), gearbox body (24), rope roll (26), rope roll cover (1), conductor rope roller bearing (2), landing power cutoff mechanism, rope roll cover (1) is rotatably arranged on rope roll (26), and conductor rope roller bearing (2) is close to by steel wire rope (13) in lift heavy；Described landing power cutoff mechanism includes turning set (19), arc-shaped cover (9), disc spring (22), roller (21), cut-off switch (16), turning set (19) is rotatably assorted with roller (21), disc spring (22) is arranged between gearbox body (24) and turning set (19), arc-shaped cover (9) on rope roll cover (1) extrudes cut-off switch (16) and connects in lift heavy, promote when suspension hook lands and drive arc-shaped cover (9) to rotate, arc-shaped cover (9) is separated with cut-off switch (16) and power-off.After using said structure, have the advantages that simple and reasonable, anti-wirerope-winding effect is good, Hoisting Security reliable, double speed operation, high working efficiency.
Description
Technical field
This utility model is related to a kind of technical field of crane equipment, particularly one kind can prevent wirerope-winding, lifting
Safety simultaneously can the double speed landing power-off for running and the double speed crane for overloading freight weight limit.
Background technology
With the fast development of industrial automation, crane is all obtained in mine, factory, logistics harbour and building field
Extremely wide application is arrived.Modal crane has gate-type, bridge-type, cantilevered, flow-type etc.；Although they belong to different
Species and the occasion that each uses also be not quite similar, but but there is common defect；One is that work efficiency can't
Make people very satisfied, particularly in hoister in large tonnage, when hoisting heavy is lighter, often rising or falling with regard to an empty hook
Long time is accomplished by, and the power of motor of hoister in large tonnage is often very big, the lengthening of empty hook or the lift heavy thing duration of runs
Huge energy dissipation will certainly be brought, while also can directly reduce the work efficiency of crane.After two are hoisting heavy landing
Be easily caused the in disorder winding of steel wire rope without timely power-off, then after being lifted big to damage of steel cable.Three is that many rising is reseted at present
Standby, particularly minor crane and electric block are not only easily caused burning machine all without load limitation device after rated weight is exceeded
Motor is damaged, and there is serious potential safety hazard.For the problems referred to above, many manufacturers and knowledgeable people have put in a large number
Man power and material develop and develop, but not yet have comparatively ideal product to emerge so far.
Content of the invention
For overcoming the drawbacks described above of existing crane gear presence, the purpose of this utility model to be to provide a kind of simple structure and close
Reason, easy to install, anti-wirerope-winding effect are good, Hoisting Security is reliable, double speed runs, the landing power-off of high working efficiency
And the double speed crane of overload freight weight limit.
This utility model solves the technical scheme adopted by above-mentioned technical problem, and it includes hoisting bracket, lift heavy mechanism, steel
Cord, suspension hook, described lift heavy mechanism include that motor, controller, gearbox body, rope roll, rope roll cover, conductor rope roller bearing, landing are disconnected
Motor structure, motor are fixed on gearbox body, and rope roll is rotatably arranged on gearbox body, change of the motor by gearbox body
Fast mechanism drives rope roll to rotate, and rope roll cover is rotatably arranged on rope roll, and conductor rope roller bearing is arranged on the conductor rope mouth of rope roll cover,
Steel wire rope one end is connected with suspension hook by balancing weight, and the other end is turned around in rope roll after the pulley being arranged on hoisting bracket
On, conductor rope roller bearing is close to by steel wire rope in lift heavy；Described landing power cutoff mechanism includes the turning set being connected as a single entity with rope roll cover
With arc-shaped cover, disc spring, roller, cut-off switch, rotation guide rail is provided with turning set and is turned with the roller being arranged on gearbox body
Dynamic cooperation, between the outer shaft and turning set of gearbox body, the arc-shaped cover on rope roll cover extrudes disconnected disc spring in lift heavy
Electric switch is simultaneously connected；Described rope roll is covered on to be promoted by disc spring when suspension hook lands and drives arc-shaped cover to rotate, and makes arc-shaped cover and power-off
Switch is separated and power-off.
Further scheme of the present utility model, is provided with overload freight weight limit mechanism on described hoisting bracket, overload freight weight limit
Mechanism include fixed seat, gas strut, rocking arm, with master switch, one end is horizontally hinged in fixed seat, and the other end fixes lifting
Machine, gas strut diagonal brace are hinged between rocking arm and fixed seat, are fixed in fixed seat with master switch, and rocking arm is provided with to be reopened with matching somebody with somebody
Close the rocking arm contact being rotatably assorted.
Further scheme of the present utility model, is fixed with described rocking arm when suspension hook lands and plays to conductor rope roller bearing turn
Spacing power-off baffle plate is moved, now rope roll covers on disc spring drive conductor rope roller bearing and rotates, and conductor rope roller bearing is combined clamping with power-off baffle plate
Steel wire rope.
Further scheme of the present utility model, described motor is double-speed motor, control of the controller installed in motor
In box, it is 50-70m/min that motor drives the First Speed of steel wire rope, and it is 15-30m/ that motor drives the second speed of steel wire rope
min.
Further scheme of the present utility model, is provided with electromagnetic brake device in the rotating shaft of the motor.
Further scheme of the present utility model, described rope roll are structure as a whole, and rope roll is provided with ordered arrangement steel wire
The thread groove of rope and commutation block, it is 80-100m to turn around the rope capacity on rope roll.
Further scheme of the present utility model, is fixed with handle on described gearbox body.
After using said structure, have the following advantages compared with prior art and effect：One is due to increased and rope roll cover
The turning set being connected as a single entity and arc-shaped cover, disc spring, roller, the landing power cutoff mechanism of cut-off switch composition, it is ensured that user is using
During can power-off after weight landing, it is to avoid steel wire rope in disorder winding during lift heavy is damaged, and substantially prolongs steel wire rope
Service life.Two is due to being provided with by fixed seat, gas strut, rocking arm, the overload freight weight limit mechanism that constitutes of counterweight switch, when hanging
Power-off immediately when exceeding 1.1 times of rated weight again, it is ensured that safe and reliable used in running.Three is using real after double-speed motor
The free switching of high low speed is showed, it is to avoid energy dissipation, while also improving the work efficiency of crane.Four is to be due to rope roll
Foundry goods overall structure and increase thread groove and commutation block, steel wire rope can be turned around on rope roll with ordered arrangement, can avoid steel wire
Restrict in disorder winding, turn around the rope capacity on rope roll up to 100m, not only can prolonging service life of steel wire, Er Qiechao
Long superelevation could be used that.
Description of the drawings
Fig. 1 is use state structural representation of the present utility model.
Fig. 2 is the structural representation of this utility model overload freight weight limit mechanism.
Fit structure schematic diagrams of the Fig. 3 for this utility model lift heavy mechanism.
Structural representations of the Fig. 4 for this utility model rope roll cover.
Wherein 1 rope roll cover, 2 conductor rope roller bearings, 3 power-off baffle plates, 4 rocking arms, 5 gas struts, 6 fixed seats, 7 pulleys, 8 liftings
Frame, 9 arc-shaped covers, 10 balancing weights, 11 suspension hooks, 12 cover plates, 13 steel wire ropes, 14 handles, 15 motors, 16 cut-off switch, 17 with reopening
Close, 18 rocking arm contacts, 19 turning sets, 20 rotate guide rail, 21 rollers, 22 disc springs, 23 gears, 24 gearbox bodys, 25 electromagnetism
Brake gear, 26 rope rolls, 27 rope roll rotary shafts, 28 guide wheels, 29 pivoted arms, 30 controllers.
Specific embodiment
Shown in Fig. 1 to Fig. 4, it is a kind of being embodied as double speed crane for landing power-off and overload freight weight limit of this utility model
Scheme, it include that hoisting bracket 8, lift heavy mechanism, steel wire rope 13, suspension hook 11, described lift heavy mechanism include motor 15, controller
30th, gearbox body 24, rope roll 26, rope roll cover 1, conductor rope roller bearing 2, landing power cutoff mechanism, motor 15 are fixed on gearbox body 24,
Rope roll 26 is rotatably arranged on gearbox body 24 by rope roll rotary shaft 27, variable-speed motor of the motor 15 by gearbox body 24
Structure 23 drives rope roll 26 to rotate, and rope roll cover 1 is rotatably arranged on rope roll 26, and conductor rope roller bearing 2 is arranged on the conductor rope of rope roll cover 1
On mouth, 13 one end of steel wire rope is connected with suspension hook 11 by balancing weight 10, and the other end is by the pulley 7 that is arranged on hoisting bracket 8
After turn around on rope roll 26, conductor rope roller bearing 2 is close to by steel wire rope 13 in lift heavy, control box of the controller 30 installed in motor 15
Interior；Described landing power cutoff mechanism include the turning set 19 being connected as a single entity with rope roll cover 1 and arc-shaped cover 9, disc spring 22, roller 21,
Cut-off switch 16, is provided with rotation guide rail 20 and is rotatably assorted with the roller 21 being arranged on gearbox body 24 in turning set 19, disk
Spring 22 is arranged between the outer shaft and turning set 19 of gearbox body 24, for the ease of installing control, cut-off switch 16 and control
Device 30 is connected and on the gearbox body 24 being engaged with arc-shaped cover 9, and cut-off switch 16 is provided with pivoted arm 29, on pivoted arm 29
Guide wheel 28 is provided with, the arc-shaped cover 9 on rope roll cover 1 extrudes the guide wheel 28 of cut-off switch 16 in lift heavy state, and passes through guide wheel 28
Pivoted arm 29 is driven to make cut-off switch 16 connect work.Described rope roll cover 1 is promoted by disc spring 22 when suspension hook lands and drives arc
Cover 9 is rotated, and makes that arc-shaped cover 9 is separated with cut-off switch 16 and power-off quits work, and the power-off baffle plate 3 being fixed on Rocker arm 4 is hanging
Hook is played when landing to 2 rotary spacing of conductor rope roller bearing, and now rope roll cover 1 drives conductor rope roller bearing 2 to rotate in disc spring 22, conductor rope roller bearing
2 are combined clamping steel wire rope 13 with power-off baffle plate 3, are always ensured that the arrangement in good order on rope roll 26 of steel wire rope 13.
Safe and reliable in order to ensure, overload freight weight limit mechanism, overload freight weight limit mechanism are installed on described hoisting bracket 8
Including fixed seat 6, gas strut 5, Rocker arm 4, match somebody with somebody master switch 17, cover plate 12, fixed seat 6 is fixed in the fix bar of hoisting bracket 8,
Rocker arm 4 one end is horizontally hinged in fixed seat 6, other end stationary crane, and 5 diagonal brace of gas strut is hinged on Rocker arm 4 and fixed seat 6
Between, it is fixed in fixed seat 6 with master switch 17, Rocker arm 4 is provided with and the rocking arm contact 18 being rotatably assorted with master switch 17, lid
Plate 12 is fixed in fixed seat 6.When lift heavy exceedes 1.1 times of rated weight, Rocker arm 4 compressed gas support under the pulling of steel wire rope 13
Bar 5, rocking arm contact 18 are rotated with Rocker arm 4, and when rocking arm contact 18 is touched with master switch 17, with master switch 17, power-off stops immediately
Only work.When releasing overweight, 5 pushing tow Rocker arm 4 of gas strut resets, and also resets therewith with master switch 17, so as to realize overload limit
Weight function.In order to ensure, using safety, to be provided with electromagnetic brake device 25 in the rotating shaft of the motor 15.
In order to effectively improve work efficiency, described motor 15 is double-speed motor, control of the controller 30 installed in motor 15
In box processed, it is 50-70m/min, First Speed preferably 60 m/min that motor 15 drives the First Speed of steel wire rope 13；Motor
15 to drive the second speed of steel wire ropes 13 be 15-30m/min, and second speed is preferably 22m/min.
In order to ensure that 13 ordered arrangement of steel wire rope and overlength superelevation could be used that, described rope roll 26 is structure as a whole,
Rope roll 26 is provided with the thread groove of ordered arrangement steel wire rope 13 and commutation block, and 13 length of steel wire rope turned around on rope roll 26 is
80-100m.Use for convenience, on described gearbox body 24, be fixed with handle 14.
The above, simply specific embodiment of the utility model, not makes to this utility model any pro forma
Limit, on the basis of without departing from the technical solution of the utility model, done simple modification, equivalent variations or modification fall
Enter protection domain of the present utility model.
Claims (7)
1. a kind of landing power-off and overload freight weight limit double speed crane, including hoisting bracket (8), lift heavy mechanism, steel wire rope (13),
Suspension hook (11), is characterized in that：Described lift heavy mechanism includes motor (15), controller (30), gearbox body (24), rope roll
(26), rope roll cover (1), conductor rope roller bearing (2), landing power cutoff mechanism, motor (15) are fixed on gearbox body (24), rope roll
(26) it is rotatably arranged on gearbox body (24), gear (23) band running rope of the motor (15) by gearbox body (24)
Cylinder (26) is rotated, and rope roll cover (1) is rotatably arranged on rope roll (26), and conductor rope roller bearing (2) is arranged on the conductor rope of rope roll cover (1)
On mouth, steel wire rope (13) one end is connected with suspension hook (11) by balancing weight (10), and the other end is by being arranged on hoisting bracket (8)
Pulley (7) after turn around on rope roll (26), conductor rope roller bearing (2) is close to by steel wire rope (13) in lift heavy；Described landing power-off
Mechanism includes the turning set (19) being connected as a single entity with rope roll cover (1) and arc-shaped cover (9), disc spring (22), roller (21), cut-off switch
(16) rotation guide rail (20), is provided with turning set (19) and is rotatably assorted with the roller (21) being arranged on gearbox body (24),
Between the outer shaft and turning set (19) of gearbox body (24), the arc-shaped cover (9) on rope roll cover (1) is hanging disc spring (22)
Cut-off switch (16) is extruded during weight and is connected；Described rope roll cover (1) is promoted by disc spring (22) when suspension hook lands and drives arc
Cover (9) is rotated, and arc-shaped cover (9) is separated with cut-off switch (16) and power-off.
2. the double speed crane of landing power-off according to claim 1 and overload freight weight limit, is characterized in that：Described lifting
Overload freight weight limit mechanism is installed on frame (8), overload freight weight limit mechanism include fixed seat (6), gas strut (5), rocking arm (4), with reopening
Close (17), rocking arm (4) one end is horizontally hinged in fixed seat (6), and other end stationary crane, gas strut (5) diagonal brace are hinged on
Between rocking arm (4) and fixed seat (6), it is fixed in fixed seat (6) with master switch (17), rocking arm (4) is provided with and matches somebody with somebody master switch
(17) the rocking arm contact (18) being rotatably assorted.
3. the double speed crane of landing power-off according to claim 2 and overload freight weight limit, is characterized in that：Described rocking arm
(4) it is fixed with when suspension hook lands and plays the power-off baffle plate (3) to conductor rope roller bearing (2) rotary spacing, now rope roll cover (1) is in disk
Spring (22) drives conductor rope roller bearing (2) to rotate, and conductor rope roller bearing (2) combines clamping steel wire rope (13) with power-off baffle plate (3).
4. landing power-off according to claim 1 or 2 or 3 and the double speed crane of overload freight weight limit, is characterized in that：Described
Motor (15) is double-speed motor, and in the control box of motor (15), motor (15) drives steel wire rope (13) to controller (30)
First Speed be 50-70m/min, motor (15) drive steel wire rope (13) second speed be 15-30m/min.
5. the double speed crane of landing power-off according to claim 4 and overload freight weight limit, is characterized in that：Motor (15)
Rotating shaft on electromagnetic brake device (25) is installed.
6. the double speed crane of landing power-off according to claim 5 and overload freight weight limit, is characterized in that：Described rope roll
(26) it is structure as a whole, rope roll (26) is provided with the thread groove of ordered arrangement steel wire rope (13) and commutation block, turns around in rope roll
(26) steel wire rope (13) length on is 80-100m.
7. the double speed crane of landing power-off according to claim 6 and overload freight weight limit, is characterized in that：Described change speed gear box
Handle (14) is fixed with body (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621067711.1U CN206014294U (en) | 2016-09-21 | 2016-09-21 | Landing power-off and the double speed crane of overload freight weight limit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621067711.1U CN206014294U (en) | 2016-09-21 | 2016-09-21 | Landing power-off and the double speed crane of overload freight weight limit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206014294U true CN206014294U (en) | 2017-03-15 |
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ID=58260893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621067711.1U Active CN206014294U (en) | 2016-09-21 | 2016-09-21 | Landing power-off and the double speed crane of overload freight weight limit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206014294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311060A (en) * | 2017-08-29 | 2017-11-03 | 柳州中科科技有限公司 | A kind of mechanical whole freight weight limit power-off protection apparatus and its ground jack of application |
-
2016
- 2016-09-21 CN CN201621067711.1U patent/CN206014294U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311060A (en) * | 2017-08-29 | 2017-11-03 | 柳州中科科技有限公司 | A kind of mechanical whole freight weight limit power-off protection apparatus and its ground jack of application |
| CN107311060B (en) * | 2017-08-29 | 2023-03-21 | 柳州中科科技有限公司 | Mechanical whole-course weight-limiting power-off protection device and jack applied by same |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |