CN201538665U - Lower limiting device of multi-layer winding steel rope electric hoist - Google Patents
Lower limiting device of multi-layer winding steel rope electric hoist Download PDFInfo
- Publication number
- CN201538665U CN201538665U CN2009202203999U CN200920220399U CN201538665U CN 201538665 U CN201538665 U CN 201538665U CN 2009202203999 U CN2009202203999 U CN 2009202203999U CN 200920220399 U CN200920220399 U CN 200920220399U CN 201538665 U CN201538665 U CN 201538665U
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- Prior art keywords
- rope
- contact block
- rope roll
- steel rope
- electric hoist
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- 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.)
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Abstract
The utility model provides a lower limiting device of a multi-layer winding steel rope electric hoist, which includes that a casing body is installed at the end portion of a machine frame; a rope drum is arranged on the machine frame; a rope drum shaft is arranged inside the rope drum; a bevel gear group arranged at one end of the rope drum shaft is formed by a small bevel gear and a large bevel gear; a bearing pad is fixedly arranged on the casing body; guide vanes fixed inside the casing body is linked up with nuts; a return torsion spring used for resetting a limit contact block is arranged below the same; and a lower limit switch used for operating the limit contact block is arranged below the limit contact block. The lower limiting device removes the potential safety hazards that when descending running stroke of the electric hoist exceeds the nominal length of a steel rope, the steel rope is enabled to be reversely wrapped on the rope drum shaft to cause secondary ascending of a weight or cause damage to an upper limiting device of the micro-electric hoist, or if fastening force between the end portion of the steel rope and a drum body of the steel drum shaft is insufficient, the weight can fall down to the ground.
Description
Technical field
The utility model relates to mechanical equipment technical field, particularly a kind of lower caging device of multi-lay winding wire ropes electric block.
Background technology
Electric block is a kind of application weight-lifting equipment more widely, and electric block mainly includes: frame is arranged on the rope roll in the frame, the steel rope that cooperates with the rope roll winding and the retarder that drives the rope roll rotating machine.There are some electric blocks that the upper limit device has been installed in the market, but when electric block rises to vertex, can shut down excessively automatically.But also can there be potential safety hazard, because because the steel rope on the rope roll of this equipment is sling or during the drag and drop article, when the steel rope on the rope roll was used up the back, if not operation control in time, the rope roll axle can rotate always, at this moment the steel rope reversing sense is on the rope roll axle, so just, can cause damage to motor or article, if moreover rope roll fixedly the power that tightens up of steel rope is less than weight gravity, at this moment weight can directly fall, there is potential safety hazard, even safety misadventure can occur.
The utility model content
The utility model provides a kind of lower caging device of multi-lay winding wire ropes electric block, disappear except when the forced stroke that minisize electric hoist descends when surpassing the nominal length of steel rope, make steel rope on the rope roll axle, cause weight to rise once more or cause minisize electric hoist upper limit device to damage, perhaps if the fastening force between steel cord ends and the rope roll beam barrel body is not enough, weight will fall potential safety hazard on the ground.
To achieve these goals, the utility model provides following technical scheme:
A kind of lower caging device of multi-lay winding wire ropes electric block, it comprises:: housing, rope roll axle, rope roll and frame, housing is installed in the end of frame, and rope roll is installed on the described frame, and the rope roll axle is placed in described rope roll inside;
Described rope roll axle one end is provided with bevel gear set, described bevel gear set is made of a bevel pinion and a big cone gear, described bevel pinion is fixedly installed on rope roll axle one end, big cone gear is fixedly installed on the screw rod, the two ends of described screw rod are installed in the bearing shell, and described bearing shell is fixedly installed on the described housing;
Guide card is fixed in the described housing, and be connected with nut, spacing contact block is installed in the described housing, and described spacing contact block below is provided with and is used for return torsion spring that described spacing contact block is resetted, is provided with the lower position switch that is used to operate described spacing contact block below spacing contact block.
Wherein, preferred, be equiped with nut above the described screw rod.
Wherein, preferred, have a sulculus in described nut side, described guide card one side is inserted in the described sulculus.
By above technical scheme as can be seen, the device that the utility model embodiment provides combines screw rod by limit switch with positive and negative motion by bevel gear set, the cooperation of nut, the number of turns by the rope roll axle and the speed ratio setting nut of bevel gear set are in the screw rod reference position, realize the lower limit function of electric block, disappear except when the forced stroke that minisize electric hoist descends when surpassing the nominal length of steel rope, make steel rope on the rope roll axle, cause weight to rise once more or cause minisize electric hoist upper limit device to damage, perhaps if the fastening force between steel cord ends and the rope roll beam barrel body is not enough, weight will fall potential safety hazard on the ground.
Description of drawings
The apparatus structure scheme drawing that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the A-A section-drawing of Fig. 1.
The specific embodiment
In order better to understand the technical solution of the utility model, describe the embodiment that the utility model provides in detail below in conjunction with accompanying drawing.
The utility model embodiment provides a kind of lower caging device of multi-lay winding wire ropes electric block, as depicted in figs. 1 and 2, it comprises: be used for the rope roll axle 13 of serving on being fixed on frame 11 1 end housing bodies 10 and being fixed in the frame 11, described rope roll axle 13 outsides are with rope roll 12
Described rope roll axle one end is provided with bevel gear set, described bevel gear set is made of a bevel pinion 1 and a big cone gear 9, described bevel pinion 1 is fixedly installed on rope roll axle 13 1 ends, big cone gear 9 is fixedly installed on the screw rod 7, the two ends of described screw rod 7 are rotating to be installed in the bearing shell 5, described bearing shell 5 is fixedly installed on the described housing 10, further among the embodiment, be equiped with nut 6 on the described screw rod 7, in real work, the lower caging device of minisize electric hoist can remain the number of turns by the reference position control steel rope of setting nut 5 on screw rod 7 on rope roll.
Wherein, in the foregoing description, guide card 8 is fixed in the described housing 10, and be connected with nut 6, spacing contact block 3 is installed in the described housing 10, described spacing contact block 3 belows are provided with and are used for return torsion spring 4 that described spacing contact block 3 is resetted, are provided with the lower position switch 2 that is used to operate described spacing contact block 3 below spacing contact block 3.
During the lower caging device work of the multi-lay winding wire ropes electric block that provides as the utility model embodiment, steel rope is along with the action of gravity of hook, cw motion downwards, the running of drive bevel gear set, be that rope roll axle 7 drives bevel pinion 1 running, bevel pinion 1 drives big cone gear 9 runnings, and big cone gear 9 drives screw rod 7 runnings, moves along guide card 8 at screw rod 7 running effect lower nuts 6.When minisize electric hoist drew work downwards, nut 6 will form spacing contact block 3 and push pressure, and spacing contact block 3 touches lower position switch 2, and motor is quit work, and realizes the lower limit function, thus protection minisize electric hoist normal operation.
Further among the embodiment, be equiped with nut 6 on the described screw rod 7, in real work, the lower caging device of minisize electric hoist can remain the number of turns by the reference position control steel rope of setting nut 5 on screw rod 7 on rope roll.
In the above-described embodiments, have a sulculus in described nut 6 sides, described guide card 8 one sides are inserted in the described sulculus.Nut 6 causes nut 6 to touch spacing contact block 3 according to guide card 8 motions like this, and spacing contact block 3 touches lower position switch 2, realizes the lower limit function of electric block.
The limit switch of the device that the utility model embodiment provides combines screw rod with positive and negative motion by gear cluster, the cooperation of nut, the number of turns by the rope roll axle and the speed ratio setting nut of bevel gear set are in the screw rod reference position, realize the lower limit function of electric block, the benefit of this device is to disappear except when the forced stroke that minisize electric hoist descends when surpassing the nominal length of steel rope, make steel rope on the rope roll axle, cause weight to rise once more or cause minisize electric hoist upper limit device to damage, moreover if the fastening force between steel cord ends and the rope roll beam barrel body is not enough, weight will fall on the ground, has very big potential safety hazard.Its structure design of the utility model is not only simple, reasonable, and attractive in appearance.Housing 10 can also replace with metal shell or plastic casing.
More than the lower caging device of a kind of multi-lay winding wire ropes electric block that the utility model embodiment is provided be described in detail, for one of ordinary skill in the art, thought according to the utility model embodiment, part in specific embodiments and applications all can change, in sum, this description should not be construed as restriction of the present utility model.
Claims (2)
1. the lower caging device of a multi-lay winding wire ropes electric block, it is characterized in that, comprise: housing (10), rope roll axle (13), rope roll (12) and frame (11), housing (10) is installed in the end of frame (11), rope roll (12) is installed on the described frame (11), and rope roll axle (13) is installed in described rope roll (12) inside;
Described rope roll axle (13) one ends are provided with bevel gear set, described bevel gear set is made of a bevel pinion (1) and a big cone gear (9), described bevel pinion (1) is fixedly installed on rope roll axle (13) one ends, big cone gear (9) is fixedly installed on the screw rod (7), the two ends of described screw rod (7) are installed in the bearing shell (5), described bearing shell (5) is fixedly installed on the described housing (10), is equiped with nut (6) above the described screw rod (7);
Guide card (8) is fixed in the described lower limit housing (10), and be connected with nut (6), spacing contact block (3) is installed in the described lower limit housing (10), described spacing contact block (3) below is provided with and is used for return torsion spring (4) that described spacing contact block (3) is resetted, is provided with the lower position switch (2) that is used to operate described spacing contact block (3) below spacing contact block (3).
2. the lower caging device of multi-lay winding wire ropes electric block according to claim 1 is characterized in that have a sulculus in described nut (6) side, described guide card (8) one sides are inserted in the described sulculus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202203999U CN201538665U (en) | 2009-10-30 | 2009-10-30 | Lower limiting device of multi-layer winding steel rope electric hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202203999U CN201538665U (en) | 2009-10-30 | 2009-10-30 | Lower limiting device of multi-layer winding steel rope electric hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201538665U true CN201538665U (en) | 2010-08-04 |
Family
ID=42590118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202203999U Expired - Fee Related CN201538665U (en) | 2009-10-30 | 2009-10-30 | Lower limiting device of multi-layer winding steel rope electric hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201538665U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879462A (en) * | 2015-05-11 | 2015-09-02 | 华国洋 | Unidirectional rotation transmission device of hydraulic elevator |
| CN111776969A (en) * | 2020-07-29 | 2020-10-16 | 宝鸡巨菱钻采设备有限责任公司 | Manned carrying electric winch for oil drilling machine |
-
2009
- 2009-10-30 CN CN2009202203999U patent/CN201538665U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879462A (en) * | 2015-05-11 | 2015-09-02 | 华国洋 | Unidirectional rotation transmission device of hydraulic elevator |
| CN111776969A (en) * | 2020-07-29 | 2020-10-16 | 宝鸡巨菱钻采设备有限责任公司 | Manned carrying electric winch for oil drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100804 Termination date: 20121030 |