CN206751256U - Spacing and preventing colliding with top rushes bottom stopping means above and below electric block - Google Patents
Spacing and preventing colliding with top rushes bottom stopping means above and below electric block Download PDFInfo
- Publication number
- CN206751256U CN206751256U CN201720362281.4U CN201720362281U CN206751256U CN 206751256 U CN206751256 U CN 206751256U CN 201720362281 U CN201720362281 U CN 201720362281U CN 206751256 U CN206751256 U CN 206751256U
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- China
- Prior art keywords
- travel switches
- limitation travel
- housing
- sliding block
- double limitation
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Abstract
It the utility model is related to spacing above and below electric block and preventing colliding with top and rush bottom stopping means, including base, gear, screw mandrel, sliding block；The base is provided with chute；The sliding block is provided with guide pad；The base is provided with screw mounting groove；The sliding block side is provided with the double limitation travel switches of a upper limit, and opposite side is provided with the double limitation travel switches of a lower limit；The double limitation travel switches of the upper limit and descending double limitation travel switches include housing and switch module；The housing is provided with mounting hole, and housing is provided with square pilot hole；The switch module is provided with depression bar, conductive contact blade, pin, back-moving spring and movable driving lever；Conductive contact blade both ends upper surface is provided with lower contact；The pin is provided with a pair, and its end lower surface is provided with upper contact；The switch module is separated by provided with two groups side by side.The utility model is conveniently adjusted electric hoist suspension hook bound height, has preventing colliding with top and erosion control bottom function, compact-sized, cost is relatively low.
Description
Technical field
It the utility model is related to spacing above and below technical field of crane equipment, more particularly to electric block and preventing colliding with top and rush the lowest limit
Position device.
Background technology
Electric block is widely used in lifting weight, and electric block be able to will stop automatically after its suspension hook rises to upper height limit
Only, once otherwise operating personnel's carelessness can damage electric block；After suspension hook falls on lower limit, typically it can also be automatically stopped, it is no
Once the steel wire rope that then operating personnel's carelessness will also result on reel is chaotic, or even warp, processing is shut down.A kind of existing use
Screw mandrel, sliding block, the limiter of travel switch, height limit is carried out by screw mandrel band movable slider movement triggering travel switch, made
Used time, screw mandrel is connected by the spool shaft of gear and electric block, during electric hoist suspension hook upstream or downstream, sliding block exists
Position on screw mandrel just reflects the height of suspension hook, therefore, initial position of the adjustment sliding block on screw mandrel, so that it may adjust suspension hook
Position is automatically stopped, but the spacing height of this limiter adjustment will pull down screw mandrel, then initial position of the sliding block on screw mandrel is adjusted,
It is inconvenient, it is impossible to adapt to the different requirements of various types；Secondly, after use after a while, electricity inside travel switch
Contact often ablation and cause travel switch failure, cause electric hoist suspension hook upstream or downstream to stop in precalculated position
And bottom is rushed to summit or rushes, therefore, many limiting device of electric block are all provided with more again in the outside of original travel switch now
One travel switch, caused the accident to prevent original travel switch failure, so not only to change the installation inside stopping means
Structure, it also add expense.
Utility model content
The utility model overcomes the deficiencies in the prior art, there is provided one kind is conveniently adjusted electric hoist suspension hook limit for height up and down
Degree, there is preventing colliding with top and erosion control bottom function, be compact-sized, lower-cost stopping means.
The utility model is achieved through the following technical solutions：
Spacing and preventing colliding with top rushes bottom stopping means above and below electric block, including base and the transmission of electric gourd drum axle connect
The gear connect, the cunning for being rotatablely connected with its both ends through base both ends and being connected with the screw mandrel of gear axis connection and wire rod thread
Block；Base below the screw mandrel is provided with the chute for being used for playing the guiding role to sliding block；The sliding block is provided with guide pad, should
Guide pad is stuck in chute, sliding block is slided from being rotated in chute in chute；The screw mandrel side
Base is provided with two screw mounting grooves parallel with screw mandrel；The side of the sliding block is provided with the double limitation travel switches of a upper limit,
Opposite side is provided with the double limitation travel switches of a lower limit, and the double limitation travel switches of the upper limit and the double limitation travel switches of lower limit pass through
Screw is fixed on screw mounting groove；
The double limitation travel switches of the upper limit and the double limitation travel switches of lower limit are identical structure, including housing and switch
Component；The housing is hollow structure, and housing is provided with mounting hole, and housing top and the bottom are equipped with square pilot hole；The switches set
Part is provided with depression bar, conductive contact blade, pin, back-moving spring and movable driving lever；The depression bar both ends are through in pilot hole can up and down certainly
By sliding, its both ends shape, size and pilot hole match, and the depression bar top is located at hull outside；The conductive contact blade is affixed
In the middle part of depression bar, its both ends upper surface is provided with lower contact；The pin is provided with a pair, and its one end is located at enclosure interior, under end
Surface is provided with upper contact, and the upper contact is located at directly over lower contact, and the pin other end is located at hull outside；The reseting spring sleeve
Outside the depression bar below conductive contact blade, its lower end pushes lower housing portion, and upper end ejection conductive contact blade makes lower contact and upper touched
Point is normally closed；The movable driving lever is on the upside of hull outside, and its one end connects with housing, and the other end is located at depression bar top end；
The double limitation travel switches of the upper limit and the double limitation travel switches of lower limit are separated by provided with two switch modules side by side.
In use, the controller of the double limitation travel switches of the upper limit, the double limitation travel switches of lower limit and electric block is electrically connected
Connect, when electric hoist suspension hook rises, spool shaft drives pinion rotation, and gear drives screw mandrel to rotate, and screw mandrel band movable slider is in cunning
Slid axially in groove, when the sliding block axial movement on screw mandrel touches the work of the inner switch component of the double limitation travel switches of the upper limit
During dynamic driving lever, movable driving lever pushes depression bar and moved downward, and makes normally closed upper contact, the lower contact of switch module separated, so as to cut off
The electrical connection of two pins, electric block controller control electric block out of service according to the power-off signal of two pins；When
After sliding block leaves movable driving lever, back-moving spring promotes conductive contact blade to move upwards, lower contact and upper contact is recovered normally closed；When this
When individual switch module breaks down, electric block does not shut down, and sliding block may proceed to be displaced outwardly, and touches outer switch group
Part, outer switch component can equally cut off the electrical connection of two pins, so that electric block is out of service, shield,
Prevent suspension hook from rushing to summit；When need to adjust the limit level of suspension hook, the screw of the double limitation travel switches of fixed upper limit need to be only unclamped, it is mobile
Double positions of the limitation travel switch on screw mounting groove of the upper limit, then the double limitation travel switches of the upper limit are locked at screw mounting groove
Upper, operation is very convenient；Similarly, when electric hoist suspension hook declines, sliding block is touched to the interior of the double limitation travel switches of lower limit
During the switch module of side, electric block also can be out of service, and when inner switch component failure, outer switch component can play guarantor
Shield acts on, and prevents suspension hook from rushing bottom；By adjusting double installation sites of the limitation travel switch on screw mounting groove of lower limit, equally may be used
Change the low limit level of suspension hook.
Further, described screw mandrel one end is connected by bearing with base rotation.For making the rotation of screw mandrel more smooth.
Further, the housing is square.Square casing is easy to be set up in parallel two switch modules.
Further, the mounting hole is provided with two.For the double limitation travel switches of the upper limit and the double stroke-limits of lower limit to be opened
Guan County is secured loaded on base.
Further, the upper contact, the material of lower contact are argent.Metal silver contact is not easy ablation.
Further, the movable driving lever is spring leaf, the upward bending archwise in the spring leaf end.Spring leaf is easy to activity
And reset；The upward bending archwise in spring leaf end is used to flex outward spring leaf, is easy to stir.
The beneficial effects of the utility model are：Two screw mounting grooves are set to be used for admittedly positioned at the side of screw mandrel on base
The double limitation travel switches of the upper limit and the double limitation travel switches of lower limit are determined, by adjusting the double limitation travel switches of the upper limit or the double limits of lower limit
Installation site of the position travel switch on screw mounting groove just can adjust the upper limit or low limit level of electric hoist suspension hook, very square
Just；It is separated by side by side in the double limitation travel switches of the upper limit and the double limitation travel switch enclosure interiors of lower limit and two switch modules is set,
After a switch module failure, shielded by another switch module, prevent suspension hook from rushing to summit or rushing bottom；Two switches sets
Part is in same housing, compact overall structure, and cost is relatively low.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Fig. 1 A-A sectional views.
Fig. 3 is the double limitation travel switches of the upper limit of the present utility model（The double limitation travel switches of lower limit）Structural representation.
Embodiment
As shown in FIG. 1 to 3, spacing above and below electric block and preventing colliding with top rushes bottom stopping means, including base 1, with it is electronic
The gear 2 of cucurbit spool shaft drive connection, the silk for being rotatablely connected with its both ends through the both ends of base 1 and being fixedly connected with gear shaft
The sliding block 4 that bar 3 and screw mandrel 3 are threadedly coupled；The base 1 of the lower section of screw mandrel 3, which is provided with, is used for what sliding block 4 was play the guiding role
Chute 5；The sliding block 4 is provided with guide pad 6, and the guide pad 6 is stuck in chute 5, sliding block 4 is rotated from being done in chute 5
Motion, it can only be slided in chute 5；The base 1 of the side of screw mandrel 3 is provided with two screw mounting grooves parallel with screw mandrel 3
7；The side of the sliding block 4 is provided with the double limitation travel switches 8 of a upper limit, and opposite side is provided with the double limitation travel switches 9 of a lower limit, should
The double limitation travel switches 8 of the upper limit and the double limitation travel switches 9 of lower limit are fixed on screw mounting groove 7 by screw 10；
The double limitation travel switches 8 of the upper limit and the double limitation travel switches 9 of lower limit are identical structure, including the He of housing 11
Switch module；The housing 11 is hollow structure, and housing 11 is provided with mounting hole 12, and the top and the bottom of housing 11 are equipped with square pilot hole
13；The switch module is provided with depression bar 14, conductive contact blade 15, pin 16, back-moving spring 17 and movable driving lever 18；The depression bar 14
Both ends are through in pilot hole 13 and can freely up and down slided, and its both ends shape, size and pilot hole 13 match, the top of depression bar 14
Outside housing 11；The conductive contact blade 15 is fixed in the middle part of depression bar 14, and its both ends upper surface is provided with lower contact 19；It is described to draw
Pin 16 is provided with a pair, and its one end is inside housing 11, and end lower surface is provided with upper contact 20, and the upper contact 20 is located at lower contact
Directly over 19, the other end of pin 16 is outside housing 11；The back-moving spring 17 is enclosed on the outside of depression bar 14 and is located at conductive contact blade
15 lower sections, its lower end push the bottom of housing 11, and upper end ejection conductive contact blade 15 makes lower contact 19 and upper contact 20 normally closed；The work
Dynamic driving lever 18 is located at the external upper of housing 11, and its one end and housing 11 connect, and the other end is located at the top end of depression bar 14；On described
The double limitation travel switches 8 of limit and the double limitation travel switches 9 of lower limit are separated by provided with two switch modules side by side.
In use, the controller electricity by the double limitation travel switches 8 of the upper limit, the double limitation travel switches 9 of lower limit and electric block
Connection, when electric hoist suspension hook rises, reel shaft driven gear 2 is rotated, and gear 2 drives screw mandrel 3 to rotate, and screw mandrel 3, which drives, to be slided
Block 4 slides axially in chute 5, is opened when the axial movement of sliding block 4 on screw mandrel 3 touches the double inner sides of limitation travel switch 8 of the upper limit
Close component movable driving lever 18 when, movable 18 times moulded rods of driving lever 14 move downward, make switch module normally closed upper contact 20, under
Contact 19 separates, so as to cut off the electrical connection of two pins 16, electric block controller according to the power-off signals of two pins 16,
Control electric block out of service；After sliding block 4 leaves movable driving lever 18, back-moving spring 17 promotes conductive contact blade 15 to transport upwards
It is dynamic, lower contact 19 and upper contact 20 is recovered normally closed；When this switch module breaks down, electric block does not stop transporting
Turn, sliding block 4 may proceed to be displaced outwardly, and touch outer switch component, and outer switch component can equally cut off the electricity of two pins 16
Connection, so that electric block is out of service, shields, prevents suspension hook from rushing to summit；When need to adjust the limit level of suspension hook, only
The screw 10 of the double limitation travel switches 8 of fixed upper limit need to be unclamped, the mobile double limitation travel switches 8 of the upper limit are on screw mounting groove 7
Position, then the double limitation travel switches 8 of the upper limit are locked at 7 on screw mounting groove, operation is very convenient；Similarly, when electronic
When hoist lifting hook declines, when sliding block is touched to the inner switch component of the double limitation travel switches 9 of lower limit, electric block can also stop
Operation, when inner switch component failure, outer switch component can shield, and prevent suspension hook from rushing bottom；Pass through adjustment
Double installation sites of the limitation travel switch 9 on screw mounting groove 7 of lower limit, it can equally change the low limit level of suspension hook.
Described one end of screw mandrel 3 is rotatablely connected by bearing 21 and base 1.For making the rotation of screw mandrel 3 more smooth.
For ease of being set up in parallel two switch modules, the housing 11 is square.
For ease of the double limitation travel switches 8 of the upper limit and the double limitation travel switches 9 of lower limit are firmly installed on base 1, institute
Mounting hole 12 is stated provided with two.
To make contact be not easy ablation, the upper contact 20, the material of lower contact 19 are argent.
To be easy to activity and resetting, the movable driving lever 18 is spring leaf；For ease of stirring, the spring leaf end is upward
Bending archwise.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any change or replacement expected without creative work, should all cover within the scope of protection of the utility model.
Therefore, the scope of protection of the utility model should be determined by the scope of protection defined in the claims.
Claims (6)
1. spacing above and below electric block and preventing colliding with top rushes bottom stopping means, including base and electric gourd drum axle are connected
Gear, the sliding block that is rotatablely connected through base both ends and its both ends and is connected with the screw mandrel of gear axis connection and wire rod thread；
It is characterized in that：Base below the screw mandrel is provided with the chute for being used for playing the guiding role to sliding block；The sliding block is provided with
Guide pad, the guide pad are stuck in chute, sliding block is slided from being rotated in chute in chute；It is described
The base of screw mandrel side is provided with two screw mounting grooves parallel with screw mandrel；It is double spacing that the side of the sliding block is provided with a upper limit
Travel switch, opposite side are provided with the double limitation travel switches of a lower limit, the double limitation travel switches of the upper limit and the double stroke-limits of lower limit
Switch is fixed by screws on screw mounting groove；
The double limitation travel switches of the upper limit and the double limitation travel switches of lower limit are identical structure, including housing and switches set
Part；The housing is hollow structure, and housing is provided with mounting hole, and housing top and the bottom are equipped with square pilot hole；The switch module
Provided with depression bar, conductive contact blade, pin, back-moving spring and movable driving lever；The depression bar both ends are through in pilot hole can be freely up and down
Slide, its both ends shape, size and pilot hole match, and the depression bar top is located at hull outside；The conductive contact blade is fixed in
In the middle part of depression bar, its both ends upper surface is provided with lower contact；The pin is provided with a pair, and its one end is located at enclosure interior, end following table
Face is provided with upper contact, and the upper contact is located at directly over lower contact, and the pin other end is located at hull outside；The back-moving spring is enclosed on
Outside depression bar below conductive contact blade, its lower end pushes lower housing portion, and upper end ejection conductive contact blade makes lower contact and upper contact
It is normally closed；The movable driving lever is on the upside of hull outside, and its one end connects with housing, and the other end is located at depression bar top end；Institute
State the double limitation travel switches of the upper limit and the double limitation travel switches of lower limit are separated by provided with two switch modules side by side.
2. spacing above and below electric block according to claim 1 and preventing colliding with top rushes bottom stopping means, it is characterised in that：It is described
Screw mandrel one end is connected by bearing with base rotation.
3. spacing above and below electric block according to claim 1 and preventing colliding with top rushes bottom stopping means, it is characterised in that：It is described
Housing is square.
4. spacing above and below electric block according to claim 1 and preventing colliding with top rushes bottom stopping means, it is characterised in that：It is described
Mounting hole is provided with two.
5. spacing above and below electric block according to claim 1 and preventing colliding with top rushes bottom stopping means, it is characterised in that：It is described
Upper contact, the material of lower contact are argent.
6. spacing above and below electric block according to claim 1 and preventing colliding with top rushes bottom stopping means, it is characterised in that：It is described
Movable driving lever is spring leaf, the upward bending archwise in the spring leaf end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720362281.4U CN206751256U (en) | 2017-04-09 | 2017-04-09 | Spacing and preventing colliding with top rushes bottom stopping means above and below electric block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720362281.4U CN206751256U (en) | 2017-04-09 | 2017-04-09 | Spacing and preventing colliding with top rushes bottom stopping means above and below electric block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206751256U true CN206751256U (en) | 2017-12-15 |
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ID=60613321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720362281.4U Expired - Fee Related CN206751256U (en) | 2017-04-09 | 2017-04-09 | Spacing and preventing colliding with top rushes bottom stopping means above and below electric block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206751256U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109305370A (en) * | 2018-09-25 | 2019-02-05 | 陕西飞机工业（集团）有限公司 | A kind of signal generation apparatus detected in place for umbrella rope |
| CN109443608A (en) * | 2018-10-31 | 2019-03-08 | 大连函量科技发展有限公司 | A kind of pressure sensor |
| CN113697704A (en) * | 2021-08-20 | 2021-11-26 | 徐州瑞格电子有限公司 | Electric hoist limiting device with multiple detection structures |
-
2017
- 2017-04-09 CN CN201720362281.4U patent/CN206751256U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109305370A (en) * | 2018-09-25 | 2019-02-05 | 陕西飞机工业（集团）有限公司 | A kind of signal generation apparatus detected in place for umbrella rope |
| CN109305370B (en) * | 2018-09-25 | 2021-11-02 | 陕西飞机工业（集团）有限公司 | Signal generating device for detecting umbrella rope in place |
| CN109443608A (en) * | 2018-10-31 | 2019-03-08 | 大连函量科技发展有限公司 | A kind of pressure sensor |
| CN109443608B (en) * | 2018-10-31 | 2021-01-08 | 大连函量科技发展有限公司 | Pressure sensor |
| CN113697704A (en) * | 2021-08-20 | 2021-11-26 | 徐州瑞格电子有限公司 | Electric hoist limiting device with multiple detection structures |
| CN113697704B (en) * | 2021-08-20 | 2023-03-14 | 徐州瑞格电子有限公司 | Electric hoist limiting device with multiple detection structures |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20190409 |