CN201980922U - Lifting and limiting device for electrical hoist - Google Patents
Lifting and limiting device for electrical hoist Download PDFInfo
- Publication number
- CN201980922U CN201980922U CN2011200804071U CN201120080407U CN201980922U CN 201980922 U CN201980922 U CN 201980922U CN 2011200804071 U CN2011200804071 U CN 2011200804071U CN 201120080407 U CN201120080407 U CN 201120080407U CN 201980922 U CN201980922 U CN 201980922U
- Authority
- CN
- China
- Prior art keywords
- lifting
- limit switch
- electrical hoist
- electric block
- fixed
- Prior art date
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a lifting and limiting device for an electrical hoist, which is characterized by comprising a limit switch, a limit steel wire rope and a counterweight ring; the limit switch is fixed on the outer side of the winding drum of the electrical hoist; one end of the limit steel wire rope is fixed on the deflector rod of the limit switch, and the other end of the limit steel wire rope is fixed on the counterweight ring; the counterweight ring is sheathed on the lifting steel wire rope of the electrical hoist; and the normally-opening contact of the limit switch is connected in the lifting contactor loop of the control loop of the electrical hoist in series. The lifting and limiting device for an electrical hoist has simple structure, practicability and reliable control, thereby effectively solving the problem that a fire breaker is easy to damage to cause lifting and limiting in failure, ensuring the safety use of the electrical hoist and reducing the equipment failure rate; and the device has better use and promotional values.
Description
Technical field
The utility model relates to a kind of fender guard of electric block, and especially a kind of electric block promotes inhibiting device.
Background technology
Electric block is a kind of small-sized weight-lifting equipment, is made up of motor, transmission device, reel, hoist rope, suspension hook and inhibiting device etc.When electric block promotes weight, inhibiting device must be installed.The lifting of electric block at present is spacing to be to utilize the cutoff device to control mostly, but in real work owing to work under hard conditions, and inevitably tiltedly draw and improper use etc., the cutoff device very easily damages, and the reparation of cutoff device and often change relatively difficulty, therefore promote the spacing malfunctioning electric block that causes easily and damage, so give produce, maintenance, maintenance bring potential safety hazard, even can cause safety misadventure when serious.
The utility model content
The technical problems to be solved in the utility model provides a kind of electric block of device security, reliability service that can make and promotes inhibiting device.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of electric block promotes inhibiting device, and its key is that it comprises limit switch, spacing steel rope and counterweight ring; Described limit switch is fixed on the outside of the reel of described electric block; One end of described spacing steel rope is fixed on the driving lever of limit switch, and its other end is fixed on the counterweight ring; Described counterweight ring set is on the hoist rope of described electric block; The open contact of described limit switch is concatenated in the lifting contactless switch loop of control loop of described electric block.
Adopt the beneficial effect that technique scheme produced to be: the utility model is simple in structure, practical, use flexibly, conveniently, control is reliable, have advantages such as the input expense is few, fault rate is low, installation and maintenance are easy and convenient, actv. solves resolves that firearm is perishable to cause promoting spacing malfunctioning problem, guaranteed the safe handling of electric block, reduced equipment failure rate, guaranteed the safety of operation of maintenance, maintenance, bring convenience for post worker, maintenance man, have value for applications preferably.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure, 1, limit switch, 2, spacing steel rope, 3, the counterweight ring, 4, hoist rope, 5, suspension hook, 6, reel, 7, driving lever.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
A kind of electric block as shown in Figure 1 promotes inhibiting device, and its key is that it comprises limit switch 1, spacing steel rope 2 and counterweight ring 3; Described limit switch 1 is fixed on the outside of the reel 6 of described electric block; One end of described spacing steel rope 2 is fixed on the driving lever 7 of limit switch 1, and its other end is fixed on the counterweight ring 3; Described counterweight ring 3 is enclosed within on the hoist rope 4 of described electric block; The open contact of described limit switch 1 is concatenated in the lifting contactless switch loop of control loop of described electric block.
Above-mentioned limit switch 1 is selected small-sized push rod limit switch for use; Spacing steel rope 2 uses φ 4 steel ropes, and its length is hung according to single-beam or the spacing height of lifting of electric block is determined; Counterweight ring 3 can play the guiding role in hoist rope 4 easy on and off activities, its weight stretchy limit switch.When electric block promoted weight, when the suspension hook 5 of electric block touched counterweight ring 3, limit switch 1 resetted, and contact disconnects, thereby disconnected the lifting contactless switch loop of electric block, reached the purpose of protection.
Claims (1)
1. an electric block promotes inhibiting device, it is characterized in that it comprises limit switch (1), spacing steel rope (2) and counterweight ring (3); Described limit switch (1) is fixed on the outside of the reel (6) of described electric block; One end of described spacing steel rope (2) is fixed on the driving lever (7) of limit switch (1), and its other end is fixed on the counterweight ring (3); Described counterweight ring (3) is enclosed within on the hoist rope (4) of described electric block; The open contact of described limit switch (1) is concatenated in the lifting contactless switch loop of control loop of described electric block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200804071U CN201980922U (en) | 2011-03-24 | 2011-03-24 | Lifting and limiting device for electrical hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200804071U CN201980922U (en) | 2011-03-24 | 2011-03-24 | Lifting and limiting device for electrical hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201980922U true CN201980922U (en) | 2011-09-21 |
Family
ID=44608386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200804071U Expired - Lifetime CN201980922U (en) | 2011-03-24 | 2011-03-24 | Lifting and limiting device for electrical hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201980922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991792A (en) * | 2014-05-12 | 2014-08-20 | 湖北九鼎起重机械有限公司 | Intelligent limiting and voice alarm device used for hoisting equipment |
-
2011
- 2011-03-24 CN CN2011200804071U patent/CN201980922U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991792A (en) * | 2014-05-12 | 2014-08-20 | 湖北九鼎起重机械有限公司 | Intelligent limiting and voice alarm device used for hoisting equipment |
| CN103991792B (en) * | 2014-05-12 | 2017-10-17 | 新沂市草桥工业集聚区发展有限公司 | A kind of crane gear intelligent limit and phonetic alarm device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |