CN207608260U - A kind of electric block upper limit interlock - Google Patents
A kind of electric block upper limit interlock Download PDFInfo
- Publication number
- CN207608260U CN207608260U CN201721697062.8U CN201721697062U CN207608260U CN 207608260 U CN207608260 U CN 207608260U CN 201721697062 U CN201721697062 U CN 201721697062U CN 207608260 U CN207608260 U CN 207608260U
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- China
- Prior art keywords
- electric block
- fixed seat
- upper limit
- limiting plate
- block upper
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Abstract
The utility model discloses a kind of electric block upper limit interlocks, it include electric block, the bottom of electric block shell is fixed with fixed seat, there is limiting plate in the bottom of fixed seat in the overhung of electric hoist suspension hook, the bottom of fixed seat is separately installed with two travel switches above limiting plate, after two travel switches are in series in the control loop of access electric block.The utility model is simple in structure, and electric block operating condition is good, and failure rate is substantially reduced, and reduces maintenance workload, and improvement cost is very low, and maintenance personnel is easy to maintain, has ensured the operation that electric block can be reliable and stable.
Description
Technical field
The utility model is related to chemical production equipment field, specifically a kind of electric block upper limit interlock.
Background technology
For electric block when coming into operation, it is the conductor rope by steel wire loop in rope guide to have position limitation protection, operation principle
Device moves axially on having the reel of grooving, with spool turns, to ensure steel wire rope marshalling on reel.Work as suspension hook
When rising to grade extreme position, the snap-gauge magnetic of rope guide device hits right stop piece, pushes gag lever post toward moving right, to cut off motor
Electric current.When suspension hook drops to extreme position.The snap-gauge of rope guide device collides left stop piece, pushes gag lever post is past to move left,
To cut off current of electric, the electric block security row that ensures in this way.
But in actual operation, due to coal dust weight in environment, cucurbit roller lubricating oil is more, for a long time gag lever post oil
Mud is accumulated, and resistance is big when pull rod being caused to move, and Caton phenomenon occurs, and circuit fire stop is caused to be unable to fast break, so that steel
Cord is interrupted.
Utility model content
The purpose of this utility model is to provide a kind of electric block upper limit interlock, is being run to reduce electric block
Failure rate in the process ensures the operation that electric block can be reliable and stable.
The technical solution of the utility model is as follows：
A kind of electric block upper limit interlock, includes electric block, it is characterised in that：The electric block shell
Bottom be fixed with fixed seat, there is limiting plate in the bottom of the fixed seat in the overhung of the electric hoist suspension hook, fixed
The bottom of seat is separately installed with two travel switches above the limiting plate, and described two travel switches are in series and are followed by
In the control loop for entering the electric block.
The electric block upper limit interlock, it is characterised in that：The fixed seat is fixedly welded on the electricity
The bottom of dynamic gourd shell.
The electric block upper limit interlock, it is characterised in that：The both sides of the limiting plate and the fixed seat
Both sides between be connected separately with spring.
The electric block upper limit interlock, it is characterised in that：The control loop of the electric block includes
Two terminals of external power supply, described two travel switches are connected to after being in series between two terminals, described
Two terminals between be also in series with button, the contact of contactor and contactor coil.
The beneficial effects of the utility model：
The utility model is simple in structure, and electric block operating condition is good, and failure rate is substantially reduced, and reduces maintenance work
Amount, improvement cost is very low, and maintenance personnel is easy to maintain, has ensured the operation that electric block can be reliable and stable.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is the utility model electrical schematic diagram.
Specific implementation mode
Referring to Fig. 1,2, a kind of electric block upper limit interlock includes electric block 1, the shell of electric block 1
Bottom be fixed with fixed seat 2, there are limiting plate 3, fixed seat 2 in the bottom of fixed seat 2 in the overhung of the suspension hook of electric block 1
Bottom be separately installed with two travel switches SQ1, SQ2 in the top of limiting plate 3, two travel switches SQ1, SQ2 are in series
Afterwards in the control loop of access electric block 1.
In the utility model, fixed seat 2 is fixedly welded on the bottom of 1 shell of electric block.
It is connected separately with spring 4 between the both sides and the both sides of fixed seat 2 of limiting plate 3.
The control loop of electric block 1 includes two terminals L1, L2 of external power supply, two travel switch SQ1,
SQ2 is connected to after being in series between two terminals L1, L2, and button SB, contactor are also in series between two terminals L1, L2
The coil of the contact and contactor KM of KM.
The utility model is further described below in conjunction with attached drawing：
When suspension hook rises, 3 uplink of limiting plate is pushed, after the suspension hook of electric block 1, which reaches, rises limit for height, in spring 4
Cushioning effect under, can push under normal circumstances limiting plate 3 touch two travel switches SQ1, SQ2, if electric block 1 is hung
Swing is generated when hook rises, then limiting plate 3 can be pushed to touch a travel switch in two travel switches SQ1, SQ2, nothing
By there is which kind of above-mentioned situation, contactor KM can be all disconnected, contactor KM is made to power off, prevents the suspension hook of electric block 1 further
Rise, to achieve the purpose that uplink limit, protect the steel wire rope of electric block 1 not broken, improve limit interlock can
By property.
Claims (4)
1. a kind of electric block upper limit interlock, includes electric block, it is characterised in that：The electric block shell
Bottom is fixed with fixed seat, and there are limiting plate, fixed seat in the bottom of the fixed seat in the overhung of the electric hoist suspension hook
Bottom two travel switches are separately installed with above the limiting plate, described two travel switches access after being in series
In the control loop of the electric block.
2. electric block upper limit interlock according to claim 1, it is characterised in that：The fixed seat fixes weldering
It is connected on the bottom of the electric block shell.
3. electric block upper limit interlock according to claim 1, it is characterised in that：The both sides of the limiting plate with
It is connected separately with spring between the both sides of the fixed seat.
4. electric block upper limit interlock according to claim 1, it is characterised in that：The control of the electric block
Circuit includes two terminals of external power supply, and described two travel switches are connected to two terminals after being in series
Between, be also in series between described two terminals button, the contact of contactor and contactor coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721697062.8U CN207608260U (en) | 2017-12-08 | 2017-12-08 | A kind of electric block upper limit interlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721697062.8U CN207608260U (en) | 2017-12-08 | 2017-12-08 | A kind of electric block upper limit interlock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207608260U true CN207608260U (en) | 2018-07-13 |
Family
ID=62797550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721697062.8U Active CN207608260U (en) | 2017-12-08 | 2017-12-08 | A kind of electric block upper limit interlock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207608260U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110683475A (en) * | 2019-10-17 | 2020-01-14 | 长沙中联恒通机械有限公司 | Control system and limiting control method for hoisting limiting mechanism |
| CN112279125A (en) * | 2020-09-09 | 2021-01-29 | 中国原子能科学研究院 | Sealed chamber hoisting and lifting mechanism |
-
2017
- 2017-12-08 CN CN201721697062.8U patent/CN207608260U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110683475A (en) * | 2019-10-17 | 2020-01-14 | 长沙中联恒通机械有限公司 | Control system and limiting control method for hoisting limiting mechanism |
| CN112279125A (en) * | 2020-09-09 | 2021-01-29 | 中国原子能科学研究院 | Sealed chamber hoisting and lifting mechanism |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |