CN203451097U - Overload limiter applied to suspension lifting device - Google Patents
Overload limiter applied to suspension lifting device Download PDFInfo
- Publication number
- CN203451097U CN203451097U CN201320477604.6U CN201320477604U CN203451097U CN 203451097 U CN203451097 U CN 203451097U CN 201320477604 U CN201320477604 U CN 201320477604U CN 203451097 U CN203451097 U CN 203451097U
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- Prior art keywords
- guide wheel
- pinch roller
- piston
- overload
- load limiter
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- Expired - Fee Related
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- 239000000725 suspension Substances 0.000 title abstract 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
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Abstract
The utility model discloses an overload limiter applied to a suspension lifting device. The overload limiter comprises a box body, wherein a guide wheel I is arranged in the box body; a guide wheel II is arranged over the guide wheel I; a suspension rope passing through the box contacts the guide wheel I and the guide wheel II in sequence; a pressure wheel is arranged between the guide wheel I and the guide wheel II and is arranged on a pressure wheel base; a feeler lever corresponding to a detection switch is arranged on the pressure wheel base; the pressure wheel base is connected with a piston; the piston is arranged at one end of a thrust plunger piston, and a regulating device is arranged at the other end of the thrust plunger piston. Compared with an electronic type load limiter, the overload limiter disclosed by the utility model belongs to a mechanical load limiter, is simple in structure and low in production cost, and is free from influences of mains voltage fluctuation; overload detection is only associated with actual bearing weight of the suspension rope, so that the reliability and the availability are high.
Description
Technical field
The utility model relates to a kind of killer, relates in particular to a kind of load limiter that is applied to suspend in midair on jacking equipment.
Background technology
Load limiter is the safety guard of elevator machinery, and it can prevent, and elevator machinery from damaging because overload causes mechanism, wire cable rupture, and drg brake failure etc. causes substantial equipment or human casualty accident.Crane Load killer can be divided into two large classes: a class is mechanical type, and a class is electronic type.At present, mechanical load limiter is applied less at home, and electronic type load limiter is widely used in crane in bridge type and elevator etc., but it exists following problem: cisco unity malfunction when mains fluctuations are larger.
Utility model content
The purpose of this utility model is just to provide a kind of load limiter that is applied to suspend in midair on jacking equipment, to solve existing deficiency in background technology.
For achieving the above object, the utility model is by the following technical solutions:
The utility model comprises casing, in casing, be provided with guide wheel I, vertical direction in guide wheel I is provided with guide wheel II, suspention rope through casing contacts with guide wheel II with guide wheel I successively, between guide wheel I and guide wheel II, is provided with pinch roller, and pinch roller is arranged on pinch roller seat, pinch roller seat is provided with the feeler lever corresponding with detector switch, pinch roller seat is connected with piston, and piston is arranged on one end of thrust plunger, and the other end of thrust plunger is provided with control apparatus.
Described pinch roller is arranged on the midperpendicalar of guide wheel I and guide wheel II.
The inside face of the described thrust plunger other end is provided with negative thread, and control apparatus is the bolt matching with negative thread.
Described suspention rope is steel rope.
Compare with electronic type load limiter, adopt the utility model of such scheme to belong to mechanical load limiter, it is not only simple in structure, productive costs is low, and it is not subject to the impact of mains fluctuations, overload detects only relevant with the weight of suspention rope actual bearer, has higher reliabilty and availability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Figure number sign is as follows: 1, gig; 2, casing; 3, guide wheel I; 4, pinch roller; 5, pinch roller seat; 6, feeler lever; 7, suspention rope; 8, detector switch; 9, control apparatus; 10, thrust plunger; 11, piston; 12, guide wheel II.
The specific embodiment
As shown in Figure 1, the utility model comprises casing 2, in casing, be provided with guide wheel I 3, vertical direction in guide wheel I is provided with guide wheel II 12, suspention rope 7 through casing contacts with guide wheel II with guide wheel I successively, between guide wheel I and guide wheel II, be provided with pinch roller 4, pinch roller is arranged on pinch roller seat 5, pinch roller seat is provided with the feeler lever corresponding with detector switch 86, pinch roller seat is connected with piston 11, piston is arranged on one end of thrust plunger 10, and the other end of thrust plunger is provided with control apparatus 9, and suspention rope 7 is steel rope.
As improvement of the present utility model: pinch roller 4 is arranged on the midperpendicalar of guide wheel I 3 and guide wheel II 12, the easy like this suspention rope stress balance making with pinch roller 4 contact points.
The inside face of described thrust plunger 10 other ends is provided with negative thread, and control apparatus 9 is the bolt matching with negative thread, compares with other control apparatus, and bolt cost is low, is convenient to regulate and uses.
Installation of the present utility model and principle of work thereof: staff is arranged on casing 2 on gig 1, the suspention rope 7 of load capacity contacts with guide wheel II 12 with guide wheel I 3 successively through casing, the thrust of thrust plunger 10 is adjusted precompressed compression and the initial displacement of 4 pairs of suspention ropes 7 of pinch roller by piston 11, pinch roller seat 5, and be bolted, suspention rope now sends crooked and displacement under the effect of thrust plunger thrust, and this is also the state of the utility model normal operation; When the overload of suspention rope, suspention rope is tending towards being straightened, by pinch roller, pinch roller seat, piston is pressed in thrust plunger, while pinch roller seat band movable feeler lever 6 detection trigger switches 8, the signal control Suspenoing apparatus that detector switch sends quits work and sends overload warning, after staff's awareness information, after carrier is adjusted, can adjust precompressed compression and the initial displacement of pinch roller to suspention rope by adjusting bolt, and then make the utility model normal operation.
Claims (4)
1. a load limiter that is applied to suspend in midair on jacking equipment, it is characterized in that: it comprises casing (2), in casing, be provided with guide wheel I (3), vertical direction in guide wheel I is provided with guide wheel II (12), suspention rope (7) through casing contacts with guide wheel II with guide wheel I successively, between guide wheel I and guide wheel II, be provided with pinch roller (4), pinch roller is arranged on pinch roller seat (5), pinch roller seat is provided with the feeler lever (6) corresponding with detector switch (8), pinch roller seat is connected with piston (11), piston is arranged on one end of thrust plunger (10), the other end of thrust plunger is provided with control apparatus (9).
2. the load limiter that is applied to suspend in midair on jacking equipment according to claim 1, is characterized in that: described pinch roller (4) is arranged on the midperpendicalar of guide wheel I (3) and guide wheel II (12).
3. the load limiter that is applied to suspend in midair on jacking equipment according to claim 1, is characterized in that: the inside face of described thrust plunger (10) other end is provided with negative thread, and control apparatus (9) is the bolt matching with negative thread.
4. the load limiter that is applied to suspend in midair on jacking equipment according to claim 1, is characterized in that: described suspention rope (7) is steel rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477604.6U CN203451097U (en) | 2013-08-07 | 2013-08-07 | Overload limiter applied to suspension lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320477604.6U CN203451097U (en) | 2013-08-07 | 2013-08-07 | Overload limiter applied to suspension lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203451097U true CN203451097U (en) | 2014-02-26 |
Family
ID=50130994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320477604.6U Expired - Fee Related CN203451097U (en) | 2013-08-07 | 2013-08-07 | Overload limiter applied to suspension lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203451097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110589704A (en) * | 2019-08-30 | 2019-12-20 | 马志远 | Building tower crane hoist wheel is with preventing overload device |
-
2013
- 2013-08-07 CN CN201320477604.6U patent/CN203451097U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110589704A (en) * | 2019-08-30 | 2019-12-20 | 马志远 | Building tower crane hoist wheel is with preventing overload device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170824 Address after: 450001 No. 311 science Avenue, hi tech Zone, Henan, Zhengzhou Patentee after: HAIWEI ZHENGZHOU HIGH TECHNOLOGY Co.,Ltd. Address before: Beijing Guangzhou road 450015 Henan city of Zhengzhou province No. 126 Patentee before: 713TH Research Institute OF CSIC |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20210807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |