CN212740553U - Steel wire rope loosening protection device - Google Patents
Steel wire rope loosening protection device Download PDFInfo
- Publication number
- CN212740553U CN212740553U CN202021357300.2U CN202021357300U CN212740553U CN 212740553 U CN212740553 U CN 212740553U CN 202021357300 U CN202021357300 U CN 202021357300U CN 212740553 U CN212740553 U CN 212740553U
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- Prior art keywords
- steel wire
- frame body
- guide
- wire rope
- hole
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 66
- 239000010959 steel Substances 0.000 title claims abstract description 66
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 10
- 230000001012 protector Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004804 winding Methods 0.000 description 11
- 230000009191 jumping Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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- Control And Safety Of Cranes (AREA)
Abstract
The utility model discloses a wire rope slack rope protection device, include: the frame body is fixed below the pulley arm support; the guide seat comprises an installation frame body and a guide post, a guide through hole is formed in a side plate, facing one of the steel wire ropes, of the frame body, and the guide post is matched with the guide through hole; the spring is sleeved between the mounting frame body and the frame body on the guide column; the roller is rotatably arranged on the guide seat, the frame body is provided with strip-shaped through holes, the wheel shaft of the roller extends out of the guide seat and the two strip-shaped through holes, the wheel surface of the roller is pressed when the wheel surface of the roller is pressed against the steel wire rope and the steel wire rope is tensioned, and the wheel shaft is positioned in the middle section of the strip-shaped through holes; and the detection switch is fixed right above the position of the wheel shaft when the steel wire rope loosening spring outside the frame body recovers to deform, and is in signal connection with a lifting motor or a grab bucket opening and closing motor. Effectively preventing the opening and closing steel wire ropes of a crane hoisting mechanism and a motor grab bucket from being too loose and preventing the grooves from being jumped and disordered; greatly improving the production efficiency. Simple structure, convenient installation, low manufacturing and maintenance cost, safety and reliability.
Description
Technical Field
The utility model relates to a hoisting equipment especially relates to a wire rope slack rope protection device for having risen device or grab bucket switching device.
Background
The hoisting mechanism and the motor grab bucket opening and closing device of the crane comprise a driving winding drum and a pulley arm support which are fixed on a crane frame, and a fixed pulley is rotatably arranged on the pulley arm support; the rope winding device also comprises a movable pulley fixed on the grab bucket or the lifting hook, wherein the steel wire rope extends out of the driving drum and then winds below the movable pulley, then winds above the fixed pulley, winds below the movable pulley again, and finally returns to the driving drum, namely the steel wire rope extending out of the driving drum is a rope loop, and the rope loop winds around the movable pulley and then is sleeved on the fixed pulley. The structure enables the gravity borne by the movable pulley to be evenly distributed on the four steel wire ropes. When the movable pulley descends to the limit position (such as an article falls to the ground and the grab bucket is opened to the maximum angle), if the winding drum is driven to continuously release the steel wire rope, the steel wire rope ring can be loosened from the fixed pulley, and when the steel wire rope is tightened again, the steel wire rope does not necessarily enter a pulley groove of the fixed pulley and can be clamped between the fixed pulley and the pulley arm support to cause faults.
The existing devices for preventing the rope from being mixed due to the jumping of a steel wire rope used by a crane hoisting mechanism and a motor grab bucket opening and closing device are a rope pressing device and a rope guide device; both the two devices have complex structures, high manufacturing cost and difficult installation, and are of pure mechanical structures and cannot be linked with electricity. To solve the above problems, the present apparatus has been developed.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists among the prior art, the utility model provides a simple structure, simple to operate's wire rope slack rope protection device.
The utility model discloses a wire rope slack rope protection device, include:
the frame body is fixed below the pulley arm support;
the guide seat comprises an installation frame body and a guide post, a guide through hole is formed in a side plate, facing one steel wire rope, of the frame body, and the guide post extends out of the guide through hole and is matched with the guide through hole;
the spring is sleeved on the guide post and positioned between the mounting frame body and the side wall with the guide through hole of the frame body;
the roller is rotatably arranged on the guide seat, strip-shaped through holes which are equal in height and extend along the horizontal direction are formed in the frame body and do not face to the two sides of any steel wire rope, the wheel shaft of the roller extends out of the guide seat and the two strip-shaped through holes, the wheel surface of the roller is provided with a rope groove, the rope groove of the roller is abutted against the steel wire rope far away from the guide through holes, when the steel wire rope is tensioned, the spring is compressed, and the wheel shaft is positioned in the middle section of the strip-shaped through;
the detection switch is fixed above the strip-shaped through hole on the outer side of the frame body, a detection opening of the detection switch faces downwards, a wheel shaft is over against the detection opening when the steel wire rope loosening spring recovers deformation, and the detection switch is in signal connection with a lifting motor or a grab bucket opening and closing motor.
The movable pulley is stressed, when the steel wire rope is stressed and tensioned, the steel wire rope presses the roller, the guide seat moves to the spring side, the spring is pressed, the detection switch cannot detect the wheel shaft, and the lifting or grab bucket opening and closing motor can normally run and can rotate in the positive and negative directions, so that the driving winding drum can be driven to unwind or wind; when the steel wire rope is loosened, the spring returns to deform and reset, the guide seat moves towards the detection switch, the detection switch detects the wheel shaft and sends a signal, and the hoisting motor or the grab bucket opening and closing motor can only rotate towards the direction of winding the driving winding drum, so that the steel wire rope is prevented from being too loosened, and the purpose of preventing the steel wire rope from jumping out of the fixed pulley due to rope disorder is achieved.
Compared with the prior art, the utility model discloses following beneficial effect has:
effectively preventing the opening and closing steel wire ropes of a crane hoisting mechanism and a motor grab bucket from being too loose and preventing the grooves from being jumped and disordered; greatly improving the production efficiency. And simple structure, convenient installation, low manufacturing and maintenance cost, safety and reliability.
Drawings
Fig. 1 is a schematic view of a steel wire winding mode when the embodiment of the steel wire rope loosening protection device of the utility model is used.
Fig. 2 is a front view of the installation position and structure of the embodiment of the rope loosening protection device for steel wire rope of the present invention.
Fig. 3 is a schematic plan view of a steel wire rope slack protector according to an embodiment of the present invention.
In the above drawings: 1. a frame body; 11. a spring stop seat; 12. a guide through hole; 13. a strip-shaped through hole; 2. a guide seat; 21. installing a frame body; 22. a guide post; 3. a spring; 4. a roller; 41. a wheel axle; 42. a capping piece; 43. a steel wire hole; 5. a retainer ring; 6. anti-drop steel wires; 7. a bolt; 8. a detection switch; A. driving the winding drum; B. a pulley arm support; C. a fixed pulley; D. a movable pulley.
Detailed Description
As shown in fig. 1-3, the embodiment of the utility model provides a wire rope slack rope protection device is proposed, include:
the frame body 1 is fixed below the pulley arm support B through bolts 7 or other fixing modes;
the guide seat 2 comprises an installation frame body 21 and a guide post 22, a guide through hole 12 is formed in a side plate, facing one of the steel wire ropes, of the frame body 1, and the guide post 22 extends out of the guide through hole 12 and is matched with the guide through hole 12;
the spring 3 is sleeved on the guide post 22 and is positioned between the installation frame body 21 and the side wall of the frame body 1 with the guide through hole 12;
the roller 4 is rotatably installed on the installation frame body 21 of the guide seat 2, strip-shaped through holes 13 which are equal in height and extend along the horizontal direction are formed in the two sides of the frame body 1, which do not face any steel wire rope, the wheel shaft 41 of the roller 4 extends out of the guide seat 2 and the two strip-shaped through holes 13, a rope groove is formed in the wheel surface of the roller 4, the rope groove of the roller 4 is abutted against the steel wire rope far away from the guide through hole 12, when the steel wire rope is tensioned, the spring 3 is compressed, and the wheel shaft 41 is located in the middle section of the strip-shaped;
the detection switch 8 is fixed above the strip-shaped through hole 13 in the outer side of the frame body 1, a detection opening of the detection switch 8 is downward, the wheel shaft 41 is just opposite to the detection opening when the steel wire rope loosening spring 3 recovers deformation, and the detection switch 8 is in signal connection with a lifting motor or a grab bucket opening and closing motor.
The movable pulley D is stressed, when the steel wire rope is stressed and tensioned, the steel wire rope presses the roller 4, the guide seat 2 moves towards the spring 3, the spring 3 is stressed, the detection switch 8 cannot detect the wheel shaft 41, and the lifting or grab bucket opening and closing motor can normally run and can rotate in the positive and negative directions, so that the driving winding drum A can be driven to unwind or wind; when the steel wire rope is loosened, the spring 3 restores to deform and reset, the guide seat 2 moves towards the detection switch 8, the detection switch 8 detects the wheel shaft 41 and sends a signal, and the hoisting or grab bucket opening and closing motor can only rotate towards the direction of winding the driving winding drum A, so that the steel wire rope is prevented from being loosened too much, and the purpose of preventing the steel wire rope from jumping out of the fixed pulley C due to the disorder of the rope in the groove is achieved.
Preferably, as shown in fig. 3, an end-capping piece 42 with a diameter larger than the width of the strip-shaped through hole 13 is fixed at one end of the axle 41, and a steel wire hole 43 vertically passing through the central axis of the axle 41 is formed at the other end; still include retaining ring 5 and anticreep steel wire 6, retaining ring 5 cup joints in 41 the shaft, retaining ring 5 is including passing the portion of stretching into and the spacing portion that the diameter is greater than the width of bar through-hole 13 of guide holder 2 make anticreep steel wire 6 stretch into spacing portion lateral surface of contradicting during the steel wire hole 43, spacing portion medial surface conflict support body 1 outer wall this moment, stretch into a medial surface conflict guide holder 2. One end of the wheel shaft 41 is limited by the retainer ring 5, so that the wheel shaft 41 is convenient to install and replace.
Preferably, the side plate of the frame body 1, on which the guide through hole 12 is formed, is detachably connected to the main body of the frame body 1, and is referred to as a spring stopper seat 11. This configuration facilitates the mounting and dismounting and replacement of the spring 3.
Preferably, the spring stop 11 is connected with the main body of the frame body 1 through a bolt 7.
Preferably, the main body of the frame body 1 is a steel plate bent into a U shape, and the main body of the frame body 1 and the spring retainer 11 enclose a closed ring, so that two steel wire ropes wound on the fixed pulley C are arranged in the ring one by one and are arranged outside the ring one by one. The steel wire rope is enclosed in the ring, so that the steel wire rope is not easy to fall off the device.
Preferably, the detection switch 8 is a proximity switch.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (6)
1. The utility model provides a wire rope slack rope protection device which characterized in that includes:
the frame body is fixed below the pulley arm support;
the guide seat comprises an installation frame body and a guide post, a guide through hole is formed in a side plate, facing one steel wire rope, of the frame body, and the guide post extends out of the guide through hole and is matched with the guide through hole;
the spring is sleeved on the guide post and positioned between the mounting frame body and the side wall with the guide through hole of the frame body;
the roller is rotatably arranged on the guide seat, strip-shaped through holes which are equal in height and extend along the horizontal direction are formed in the frame body and do not face to the two sides of any steel wire rope, the wheel shaft of the roller extends out of the guide seat and the two strip-shaped through holes, the wheel surface of the roller is provided with a rope groove, the rope groove of the roller is abutted against the steel wire rope far away from the guide through holes, when the steel wire rope is tensioned, the spring is compressed, and the wheel shaft is positioned in the middle section of the strip-shaped through;
the detection switch is fixed above the strip-shaped through hole on the outer side of the frame body, a detection opening of the detection switch faces downwards, a wheel shaft is over against the detection opening when the steel wire rope loosening spring recovers deformation, and the detection switch is in signal connection with a lifting motor or a grab bucket opening and closing motor.
2. The steel cord slack protector of claim 1, wherein: one end of the wheel shaft is fixed with a sealing sheet with the diameter larger than the width of the strip-shaped through hole, and the other end of the wheel shaft is provided with a steel wire hole which vertically penetrates through the axle wire of the wheel shaft; the anti-dropping steel wire is sleeved on the wheel shaft, the retainer ring penetrates through the stretching-in part of the guide seat and the limiting part with the diameter larger than the width of the strip-shaped through hole, the anti-dropping steel wire stretches into the outer side surface of the limiting part of the steel wire hole, the inner side surface of the limiting part is abutted against the outer wall of the support body, and the inner side surface of the stretching-in part is abutted against the guide seat.
3. The steel cord slack protection device of claim 2, wherein: the side plate of the frame body, which is provided with the guide through hole, is detachably connected with the main body of the frame body, and the side plate is called a spring baffle seat.
4. A steel cord slack protector as claimed in claim 3, wherein: the spring stop seat is connected with the main body of the frame body through a bolt.
5. A slack rope protection device as claimed in claim 3 or 4, wherein: the main body of the frame body is a steel plate bent into a U shape, the main body of the frame body and the spring baffle seat are enclosed into a closed ring, and one of the two steel wire ropes wound on the fixed pulley is in the ring and the other steel wire rope is outside the ring.
6. The steel cord slack protection device of claim 5, wherein: the detection switch is a proximity switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021357300.2U CN212740553U (en) | 2020-07-10 | 2020-07-10 | Steel wire rope loosening protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021357300.2U CN212740553U (en) | 2020-07-10 | 2020-07-10 | Steel wire rope loosening protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212740553U true CN212740553U (en) | 2021-03-19 |
Family
ID=75021621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021357300.2U Active CN212740553U (en) | 2020-07-10 | 2020-07-10 | Steel wire rope loosening protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212740553U (en) |
-
2020
- 2020-07-10 CN CN202021357300.2U patent/CN212740553U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A wire rope slack protection device Effective date of registration: 20230314 Granted publication date: 20210319 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU CUNNY MECHANICAL ENGINEERING Co.,Ltd. Registration number: Y2023980034626 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210319 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU CUNNY MECHANICAL ENGINEERING Co.,Ltd. Registration number: Y2023980034626 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A steel wire rope loose rope protection device Granted publication date: 20210319 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU CUNNY MECHANICAL ENGINEERING Co.,Ltd. Registration number: Y2024980016862 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |