CN203653141U - Lifting weight overload limiter - Google Patents
Lifting weight overload limiter Download PDFInfo
- Publication number
- CN203653141U CN203653141U CN201320807869.8U CN201320807869U CN203653141U CN 203653141 U CN203653141 U CN 203653141U CN 201320807869 U CN201320807869 U CN 201320807869U CN 203653141 U CN203653141 U CN 203653141U
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- CN
- China
- Prior art keywords
- bearing seat
- pressure sensor
- housing
- shell
- lifting
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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.)
- Expired - Lifetime
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- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a lifting weight overload limiter which is arranged between a bearing seat and a base arranged at the two ends of a lifting reel shaft in a supporting mode. The lifting weight overload limiter comprises a shell and a pressure sensor, a boss upwards extends from the middle of the shell, the pressure sensor is perpendicularly fixed in the shell, and the boss in the middle of the shell is embedded in a groove in the bottom of the bearing seat. The upper end of the pressure sensor abuts against the top face of the groove in the bottom of the bearing seat, the lower end of the pressure sensor abuts against the upper side face of the base, and the two ends of the shell are fixedly connected with the bearing seat on the shell and the base under the shell through fastening pieces respectively. The lifting weight overload limiter is designed in a universal mode, the variety of molds is reduced, machining amount is reduced, structure weight is reduced, the manufacturing cycle is shortened, and manufacturing cost is greatly lowered. The lifting weight overload limiter is simple in structure and quick and convenient to mount and repair, the repairing cycle of lifting equipment is shortened, the utilization rate of the lifting equipment is improved, and using cost is lowered.
Description
Technical field
The utility model relates to a kind of safety guard of hoisting crane, relates in particular to a kind of device that prevents overload crane, belongs to elevator machinery technical field.
Background technology
Overload limiting device of lifting weight is a kind of safety guard of elevator machinery, generally for all kinds of weight-lifting equipments, can effectively prevent hoisting weight of crane overload, is to guarantee personnel and hoisting crane requisite important device in a safe condition.Existing overload limiting device of lifting weight adopts pressure sensor measure hang thing by wire rope transfers the load signal to hoisting drum, convert load signal to electric signal through pressure sensor, by signal cable by electric signal transmission the central controller to hoisting crane, contrast with default load signal, once find hoisting capacity overload, will sound and light alarm and cut off crane lifting power supply, and tool statistics have shown and hangs the function of thing weight.The overload limiting device of lifting weight generally using mostly at present is pin type and axle bed formula, pressure sensor is placed in to hoisting crane to be born up heavy duty parts inside and combines together with it, like this, the overload limiting device of lifting weight of different hoisting cranes all needs according to it in different use position specific customization, fabrication cycle is long, and maintenance cost is high.Affect the work efficiency that hoisting crane is installed.
Utility model content
The purpose of this utility model be to provide a kind of simple in structure, installation and maintenance are efficient and convenient, adopt the overload limiting device of lifting weight of General design.
The utility model is achieved by the following technical programs:
A kind of overload limiting device of lifting weight, described overload limiting device of lifting weight is separately positioned between the bearing seat and base that supports the drum shaft two ends that hoist, comprise housing and pressure sensor, described housing is elongated, housing middle part extends upward boss, described pressure sensor is vertically fixed in housing, in the boss embedded axle bearing bottom groove at housing middle part; Pressure sensor upper end is resisted against on bearing seat bottom groove end face, and pressure sensor lower end abutment is on base upper side; Housing two ends are fixedly connected with the base under it with the bearing seat on it by fastener respectively.
The purpose of this utility model can also further realize by following technical measures.
Aforesaid overload limiting device of lifting weight, boss and the bearing seat bottom groove free-running fit at wherein said housing middle part, the top planes at the base plane at bearing seat two ends and housing two ends leaves gap delta.
The utility model adopts General design, needs specific customization to change standardized structure into existing overload limiting device of lifting weight, and profile is simplified, reduce mould kind, reduced amount of machining, alleviated structural weight, shorten fabrication cycle, thereby greatly reduce manufacturing cost.The utility model is simple in structure, and installation and maintenance are efficient and convenient, shortens weight-lifting equipment maintenance cycle, improves weight-lifting equipment Occupation coefficient, has reduced use cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the right elevation of Fig. 1.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As depicted in figs. 1 and 2, the utility model is separately positioned between the bearing seat 2 and base 3 that supports drum shaft 1 two ends that hoist, comprise housing 4 and pressure sensor 5, housing 4 is elongated, housing 4 middle parts extend upward boss 41, pressure sensor 5 is vertically fixed in housing 4, in the boss 41 embedded axle bearing bottom grooves 21 at housing 4 middle parts that match with bearing seat bottom groove 21.Pressure sensor 5 upper ends are resisted against on bearing seat bottom groove 21 end faces, and lower end abutment is on base 3 upper sides.Base 3 is supported on trolley frame 6, and housing 4 two ends are fixedly connected with the base 3 under it with the bearing seat 2 on it by bolt and nut group 7 respectively.According to the difference of weight-lifting equipment lifting tonnage, select corresponding pressure sensor 5, the thickness of housing 4 and unequally loaded pressure sensor 5 adapt, thereby make the high H in center of the different hoisting drum of lifting tonnage 8 also different.
The boss 41 at housing 4 middle parts and bearing seat bottom groove 21 free-running fits, be convenient to the utility model and be positioned at the downside of bearing seat 2.The top planes at the base plane at bearing seat 2 two ends and housing 4 two ends leaves gap delta, guarantees that the utility model bears whole loads of hanging thing, improves accuracy of the present utility model and safety.
In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (2)
1. an overload limiting device of lifting weight, it is characterized in that: described overload limiting device of lifting weight is separately positioned between the bearing seat and base that supports the drum shaft two ends that hoist, comprise housing and pressure sensor, described housing is elongated, housing middle part extends upward boss, described pressure sensor is vertically fixed in housing, in the boss embedded axle bearing bottom groove at the housing middle part matching with bearing seat bottom groove; Pressure sensor upper end is resisted against on bearing seat bottom groove end face, and pressure sensor lower end abutment is on base upper side; Housing two ends are fixedly connected with the base under it with the bearing seat on it by fastener respectively.
2. the overload limiting device of lifting weight as described in claim 1, is characterized in that: boss and the bearing seat bottom groove free-running fit at housing middle part, the top planes at the base plane at bearing seat two ends and housing two ends leaves gap delta.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320807869.8U CN203653141U (en) | 2013-12-11 | 2013-12-11 | Lifting weight overload limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320807869.8U CN203653141U (en) | 2013-12-11 | 2013-12-11 | Lifting weight overload limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203653141U true CN203653141U (en) | 2014-06-18 |
Family
ID=50919555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320807869.8U Expired - Lifetime CN203653141U (en) | 2013-12-11 | 2013-12-11 | Lifting weight overload limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203653141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479777A (en) * | 2021-08-06 | 2021-10-08 | 上海市特种设备监督检验技术研究院 | Device and method for detecting lifting capacity limiter |
-
2013
- 2013-12-11 CN CN201320807869.8U patent/CN203653141U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113479777A (en) * | 2021-08-06 | 2021-10-08 | 上海市特种设备监督检验技术研究院 | Device and method for detecting lifting capacity limiter |
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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: 20140618 |