CN203066899U - Steel wire rope elasticity limiting device - Google Patents
Steel wire rope elasticity limiting device Download PDFInfo
- Publication number
- CN203066899U CN203066899U CN 201320088183 CN201320088183U CN203066899U CN 203066899 U CN203066899 U CN 203066899U CN 201320088183 CN201320088183 CN 201320088183 CN 201320088183 U CN201320088183 U CN 201320088183U CN 203066899 U CN203066899 U CN 203066899U
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- wire rope
- limit switch
- rope
- flat spring
- steel wire
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Abstract
The utility model relates to the technical field of pile work machinery, in particular to a steel wire rope elasticity limiting device which comprises a steel wire rope, and is characterized in that the steel wire rope elasticity limiting device is provided with a flat spring, a switch contact terminal, a limit switch, a limit switch support saddle, a press plate, rope seats, a fixing bolt and a lock nut, wherein the flat spring is arranged on one side of the steel wire rope, the press plate is arranged on the other side and in a position corresponding to the center of the flat spring, the rope seats are respectively arranged at the two ends of the flat spring, corresponding to one side of the steel wire rope, the limit switch support saddle is fixed in the center of the other side, a support is arranged in the center of the limit switch support saddle, the press plate and the flat spring are fixed on the steel wire rope through the fixing bolt and the lock nut, which are arranged on the two sides of the steel wire rope, one end of the limit switch is fixedly connected with the support, the other end of the limit switch is hinged with the switch contact terminal, the switch contact terminal corresponds to the rope seats in positions, and the steel wire rope elasticity limiting device has the advantages of simple structure, convenience in operation, zero trouble, convenience in mounting and adjusting, and the like.
Description
Technical field
The utility model relates to the piling machinery technical field, specifically a kind of wire rope degree of tightness stopping means for lifting appliance and piling machinery.
Background technology
At present, the stake machine is when construction, operating personnel are at first with the console switch of manually controlling on the shelves operating operation platform, the hoist engine frequency converter drives the hoist engine machine operation, motor is given reductor with transmission of power, reductor drives the lifting drum rotation, the framework of the other end of the wire rope on the reel is descended, and then make the reductor that is fixed on the framework drive drilling tool decline, when operating personnel observe drilling tool arrival appointment pile driving position, drilling tool rotating speed revolution switch on the manual operation console, make it to be transferred to automatic control shelves, the drilling tool of rig begins to creep into, the motor of drilling tool has the drilling tool inverter supply to reach rated speed, when drilling depth increases, the drilling tool resistance increases, the drilling tool current of electric increases, the electric current that detects motor when the drilling tool frequency converter surpasses permission upward in limited time, output signal is passed to the hoist engine frequency converter, the adjustment of hoist engine frequency converter reduces the hoist engine motor speed, so that the drilling tool current of electric reduces, when the electric current of drilling tool motor during less than allowable upper limit value, the drilling tool frequency converter is transferred to the hoist engine frequency converter with output signal, make it to stop to adjust and keep duty, when the drilling tool resistance reduces, the drilling tool current of electric reduces, and namely electric current is reduced to and allows down in limited time, the drilling tool frequency converter is transferred to the hoist engine frequency converter with output signal, and improve the hoist engine motor speed and improve the drilling tool decrease speed, prescribe a time limit down greater than allowing when the drilling tool current of electric, namely stop to adjust and keeping duty.In running, it is less electric current to occur, and the drilling tool running speed is slow, the too much situation that wire rope is put, and wire rope has been put many will cause the chaotic and wire rope accumulation of reel row rope.
At present in the crane applications field, for equipment and the personal injury that prevents that the crane load overload from causing, usually at equipment load lifting limiter is installed, load lifting limiter is made up of sensor and controller two parts, when the lifting appliance hoisting heavy, weight is transferred to sensor makes sensor produce micro-voltage change, amplifies through instrument amplifier and becomes data signal by high-resolution A/D converter.Data signal is directly read by one-chip computer, is converted into gravimetric value after treatment.This value and specified comparison are exported a pair of passive relay contact signal (normally closed) as reaching 110% rated value, be used for cutting off the lifting motor power supply, gravimetric value can be delivered to according to the order of controller and demonstrate rated weight after controller is handled in addition, the pre-alarm of lifting weight and alarm sound, during sensor installation, with elastic body near wire rope, with hand pressing plate is enclosed within on the U bolt then wire rope is pushed down, then with spanner left and right sides nut screwing clamping is pushed down wire rope, its diameter slightly is out of shape to get final product, Ge Jia one nut in the left and right sides is also tightly locking more at last, too tightly or too pine all can make signal of sensor inconsistent, when controller is installed, controller can be installed on the torch door according to different needs or be contained in the drivers' cab all can, be connected with a four-core shielding line between controller and the sensor, its deficiency is: the control signal when it has only arrived weight does not lose the control signal of weight.And complex structure, need independent supply line, complex circuit, breaking down is difficult to maintenance, adjusts difficulty.
Summary of the invention
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, and a kind of simple in structure, easy to operate, fault-free is provided, and installs, wire rope degree of tightness stopping means easy to adjust.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of wire rope degree of tightness stopping means, comprise wire rope, it is characterized in that being provided with flat spring, switch contact, limit switch, the limit switch bearing, pressing plate, the rope seat, set bolt and locking nut, wire rope one side is provided with flat spring, opposite side counterpiece spring center is provided with pressing plate, the corresponding wire rope of flat spring one side two ends are respectively equipped with the rope seat, the opposite side center fixation has the limit switch bearing, limit switch bearing center is provided with support, pressing plate and flat spring are fixed on the wire rope through set bolt and the locking nut of wire rope both sides respectively, limit switch one end is fixedlyed connected with support, the other end and switch contact are hinged, switch contact is corresponding with the position of rope seat, when wire rope is stressed, rope is stretched gradually by bending and by rope seat push-pads spring it is out of shape to the switch contact direction, at this moment flat spring namely touches switch contact, make the limit switch action, when wire rope pine or stressed hour, it is at pressing plate, become case of bending under the effect of rope seat and flat spring, switch contact separates with flat spring, and limit switch is failure to actuate.
Rope seat described in the utility model is that the baffle plate by base plate and base plate both sides intersects and fixedly forms, and the curved projection of plate inner surface is beneficial between the base plate of wire rope and rope seat formation and contacts, and reaches minimizing to the friction of wire rope.
The utility model is owing to adopt said structure, and the control signal in the time of can the perception arrived weight again can perception loses the control signal of weight, avoided wire rope to stack and chaotic, has simple in structure, easy to operate, fault-free, and advantage is installed, easy to adjust etc.
Description of drawings
Fig. 1 is the structural representation of the utility model rope stress.
Fig. 2 is do not stress state or the little structural representation of stress of the utility model.
Reference numeral: flat spring 1, switch contact 2, limit switch 3, limit switch bearing 4, pressing plate 5, rope seat 6, wire rope 7, set bolt 8, locking nut 9, support 10, base plate 11, baffle plate 12.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is further specified:
As shown in drawings, a kind of wire rope degree of tightness stopping means, comprise wire rope 7, it is characterized in that being provided with flat spring 1, switch contact 2, limit switch 3, limit switch bearing 4, pressing plate 5, rope seat 6, set bolt 8 and locking nut 9, wire rope 7 one sides are provided with flat spring 1, opposite side counterpiece spring 1 center is provided with pressing plate 5, flat spring 1 corresponding wire rope 7 one side two ends are respectively equipped with rope seat 6, the opposite side center fixation has limit switch bearing 4, limit switch bearing 4 centers are provided with support 10, pressing plate 5 and flat spring 1 are fixed on the wire rope 7 through set bolt 8 and the locking nut 9 of wire rope 7 both sides respectively, limit switch 3 one ends are fixedlyed connected with support 10, the other end and switch contact 2 are hinged, switch contact 2 is corresponding with the position of rope seat 6, when wire rope 7 is stressed, wire rope 7 is stretched gradually by bending and by rope seat 6 push-pads springs 1 it is out of shape to switch contact 2 directions, at this moment flat spring 1 namely touches switch contact 2, make limit switch 3 actions, when wire rope 7 do not stress or stressed hour, it is at pressing plate 5, become case of bending under the effect of rope seat 6 and flat spring 1, switch contact 2 separates with flat spring 1, and limit switch 3 is failure to actuate.
Rope seat described in the utility model 6 is that the baffle plate 12 by base plate 11 and base plate 11 both sides intersects and fixedly forms, and the curved projection of base plate 11 inner surfaces is beneficial between the base plate 11 of wire rope 7 and rope seat 6 formation and contacts, and reaches minimizing to the friction of wire rope 7.
The utility model is when construction, limit switch 3 is connected with control system, this device is fixed on wire rope 7 fixed ends, operating personnel are at first with the console switch of manually controlling on the shelves operating operation platform, the hoist engine frequency converter drives the hoist engine machine operation, motor is given reductor with transmission of power, reductor drives the lifting drum rotation, unit head and the drilling tool of the other end of the wire rope on the reel are descended, in drilling tool decline process, wire rope is in stress all the time, wire rope 7 is stretching and by rope seat 6 push-pads springs 1 it is out of shape to switch contact 2 directions, at this moment flat spring 1 namely touches switch contact 2, make limit switch 3 actions and the perception stress, reel one direct acting, after drilling tool gets into certain position, wire rope 7 is in when not stressing state, it is at pressing plate 4, become case of bending under the effect of rope seat 6 and flat spring 1, switch contact 2 separates with flat spring 1, limit switch 3 is failure to actuate, and then reel is quit work, avoid that the wire rope on the reel 7 is kept in motion when not stressing state always, and cause wire rope to be stacked and chaotic.
The utility model is owing to adopt said structure, and the control signal in the time of can the perception arrived weight again can perception loses the control signal of weight, avoided wire rope to stack and chaotic, has simple in structure, easy to operate, fault-free, and advantage is installed, easy to adjust etc.
The utility model also can be used on the equipment such as lifting appliance, when weight lands, can cut off the electricity supply automatically, prevents that wire rope from excessively stacking and chaotic.
Claims (2)
1. wire rope degree of tightness stopping means, comprise wire rope, it is characterized in that being provided with flat spring, switch contact, limit switch, the limit switch bearing, pressing plate, the rope seat, set bolt and locking nut, wire rope one side is provided with flat spring, opposite side counterpiece spring center is provided with pressing plate, the corresponding wire rope of flat spring one side two ends are respectively equipped with the rope seat, the opposite side center fixation has the limit switch bearing, limit switch bearing center is provided with support, pressing plate and flat spring are fixed on the wire rope through set bolt and the locking nut of wire rope both sides respectively, limit switch one end is fixedlyed connected with support, the other end and switch contact are hinged, and switch contact is corresponding with the position of rope seat.
2. a kind of wire rope degree of tightness stopping means according to claim 1 is characterized in that described rope seat is that baffle plate by base plate and base plate both sides intersects and fixedly forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320088183 CN203066899U (en) | 2013-02-27 | 2013-02-27 | Steel wire rope elasticity limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320088183 CN203066899U (en) | 2013-02-27 | 2013-02-27 | Steel wire rope elasticity limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203066899U true CN203066899U (en) | 2013-07-17 |
Family
ID=48765709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320088183 Withdrawn - After Issue CN203066899U (en) | 2013-02-27 | 2013-02-27 | Steel wire rope elasticity limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203066899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072917A (en) * | 2013-02-27 | 2013-05-01 | 威海市海泰起重机械有限公司 | Steel wire rope elasticity limiting device |
-
2013
- 2013-02-27 CN CN 201320088183 patent/CN203066899U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072917A (en) * | 2013-02-27 | 2013-05-01 | 威海市海泰起重机械有限公司 | Steel wire rope elasticity limiting device |
| CN103072917B (en) * | 2013-02-27 | 2015-01-07 | 威海市海泰起重机械有限公司 | Steel wire rope elasticity limiting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130717 Effective date of abandoning: 20150107 |
|
| RGAV | Abandon patent right to avoid regrant |