CN210855063U - Steel wire rope groove-jumping alarm device for tower crane hoisting trolley - Google Patents
Steel wire rope groove-jumping alarm device for tower crane hoisting trolley Download PDFInfo
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- CN210855063U CN210855063U CN201921172017.XU CN201921172017U CN210855063U CN 210855063 U CN210855063 U CN 210855063U CN 201921172017 U CN201921172017 U CN 201921172017U CN 210855063 U CN210855063 U CN 210855063U
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- pulley
- wire rope
- tower crane
- steel wire
- alarm device
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Abstract
The utility model relates to a tower crane is wire rope jumping groove alarm device for trolley, its characterized in that: the device comprises a rack for being hinged with a first pulley and a second pulley block, wherein a steel wire rope is wound on the first pulley and the second pulley block, a support frame and a contact switch connected to the support frame are vertically arranged on the rack, and the contact switch is arranged on two sides of the first pulley or the second pulley block. The utility model discloses simple and easy wire rope that tower crane jack-up dolly was used jumps groove alarm device simple structure, and the cost is low, easily installation and maintenance.
Description
The technical field is as follows:
the utility model relates to a tower crane is wire rope jumping groove alarm device for trolley.
Background art:
in the hoisting equipment industry, the lifting and the direction of a lifting appliance are generally controlled by a steel wire rope, however, in the process of controlling the lifting of the lifting appliance, the steel wire rope is often separated from a pulley to generate groove jumping due to the reasons of looseness, mechanical vibration, improper operation and the like of the steel wire rope. If the steel wire rope can not be found in time after the steel wire rope is out of the groove, the steel wire rope can be damaged, a pulley or a wheel axle can be damaged, and if the steel wire rope is broken, major accidents such as machine damage, people death and the like can be caused.
In the application of the existing tower crane hoisting engineering, two lug plates are generally additionally arranged on two sides of a pulley, and one or more pin shafts parallel to the axis of the pulley are used for limiting the steel wire rope from falling off. However, in practical application, the steel wire rope often breaks away from the pulley due to the reasons of looseness, mechanical vibration, improper operation and the like to cause a groove skipping accident, and the accident is particularly frequent at the crane trolley of the tower crane. And because the high-altitude operation is carried out, personnel are far away from the site, and the jumping groove of the steel wire rope cannot be found and processed in time, so that the casualties and the economic loss caused by the final fracture of the steel wire rope are very large.
The invention content is as follows:
in view of the not enough of prior art, the utility model aims to solve the technical problem that a tower crane is wire rope alarm device that jumps groove for jack-up dolly is provided, this wire rope alarm device that jumps groove for jack-up dolly of tower crane reasonable in design is favorable to making things convenient for people in time to discover wire rope jumps the groove.
The utility model discloses tower crane is wire rope jumping groove alarm device for trolley, its characterized in that: the device comprises a rack for being hinged with a first pulley and a second pulley block, wherein a steel wire rope is wound on the first pulley and the second pulley block, a support frame and a contact switch connected to the support frame are vertically arranged on the rack, and the contact switch is arranged on two sides of the first pulley or the second pulley block.
Furthermore, the rack is vertically provided with connecting plates positioned at two sides of the first pulley or the second pulley block, the connecting plates at the two sides are fixedly connected with limiting rods positioned above the first pulley or the second pulley block and used for limiting the separation of the steel wire rope, and the limiting rods are arranged along the axis direction parallel to the first pulley or the second pulley block.
Further, above-mentioned frame includes two channel steel and connects the linking roof beam of two channel steel tip, and channel steel and linking are equipped with deep floor between the roof beam, and the notch of two channel steel sets up back to the back mutually.
Furthermore, the second pulley block comprises a second pulley and a third pulley which are coaxially hinged.
Furthermore, above-mentioned support frame is including connecting the stand on both sides channel section steel and connecting the even board on coexistence post upper portion, and the lower part of stand has the joint to be fixed at the centre gripping mouth on channel section steel upper portion, the bottom and the lateral part of centre gripping mouth are equipped with the screw that is used for connecting locking stud respectively, the bolt fastening is passed through on the upper portion of stand to even board both sides, the contact switch is fixed on even board.
Furthermore, the upper edge and the lower edge of the two ends of the connecting plate are provided with U-shaped grooves arranged at intervals, and the bolts are locked in the U-shaped grooves of the connecting plate.
Furthermore, the contact of the contact switch is obliquely arranged on the connecting plate, the lower end part of the contact switch is close to the side surface of the pulley, and the side surface of each pulley is provided with the contact switch.
Furthermore, each contact switch is connected in series, a wireless signal generator is arranged in the series circuit, a wireless signal receiver wirelessly matched with the wireless signal generator is arranged in a control bin of the tower crane, and the wireless signal receiver is electrically connected with the alarm bell.
The utility model discloses tower crane is wire rope jumping groove alarm device for trolley, wherein tower crane is wire rope jumping groove alarm device for trolley includes the frame that is used for articulated connection first pulley and second assembly pulley, first pulley and second assembly pulley are around being equipped with wire rope, stand on the frame and be equipped with the support frame and connect the contact switch on the support frame immediately, the contact switch is established in the both sides of first pulley or second assembly pulley; during operation, wire rope slides in the pulley groove of first pulley and second assembly pulley, when unexpected the wire rope breaks away from the pulley groove, the wire rope that breaks away from the pulley groove can touch contact switch promptly, and operating personnel can learn wire rope through trigger switch's closure and break away from the pulley groove, can take measures.
Furthermore, the contact switches are connected in series, a wireless signal generator is arranged in the series circuit, a wireless signal receiver wirelessly matched with the wireless signal generator is arranged in a control bin of the tower crane, and the wireless signal receiver is electrically connected with the alarm bell; when the steel wire rope is separated from the pulley groove, the steel wire rope separated from the pulley groove can touch the contact switch, the wireless signal generator in the series circuit can send a signal to the wireless signal receiver, and the wireless signal receiver can trigger the alarm bell to work when receiving the signal, so that an operator can take measures.
The utility model discloses simple and easy wire rope that tower crane jack-up dolly was used jumps groove alarm device simple structure, and the cost is low, easily installation and maintenance.
Description of the drawings:
fig. 1 is a schematic front view of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a front view of the support frame;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a cross-sectional view A-A of FIG. 4;
FIG. 7 is a front view of the post;
FIG. 8 is a sectional view taken along line B-B of FIG. 7;
FIG. 9 is a front view of the tie plate;
fig. 10 is a schematic diagram of the trigger signal connection of the contact switch of the present invention;
fig. 11 is a schematic diagram of the circuit of fig. 10.
The specific implementation mode is as follows:
in order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The utility model discloses tower crane trolley is with wire rope jumping groove alarm device includes the frame 3 that is used for articulated connection first pulley 1 and second assembly pulley 2, first pulley 1 and second assembly pulley 2 are around being equipped with wire rope 4, second assembly pulley 2 includes two coaxial articulated second pulley 201 and third pulley 202, wire rope 4's winding can be, get into after the turn from second pulley 201 one end and connect to the assembly pulley of hanging down, through hanging down the assembly pulley around set up the back rise be connected to first pulley 1, through first pulley 1 around set up the back reconnection to the assembly pulley of hanging down, through hanging down the assembly pulley again around set up the back rise be connected to third pulley 202, through third pulley 202 around set up the back output; the support frame 3 is vertically provided with a support frame 5 and a contact switch 6 connected to the support frame, the contact switch 6 is arranged on two sides of the first pulley 1 or the second pulley block 2, the support frame 5 can be diversified in structure, and most importantly, the contact switch 6 connected with the support frame is positioned on two sides of the first pulley 1, the second pulley 201 and the third pulley 202, so that once the steel wire rope 4 is out of the groove, the contact switch 6 can be touched.
Furthermore, in order to design reasonably and make the contact switch 6 convenient to disassemble and assemble, the support frame 5 comprises upright posts 12 connected to the channel steel on the two sides and a connecting plate 13 connected with the upper parts of the two upright posts, the lower parts of the upright posts 12 are provided with clamping ports 14 clamped and fixed on the upper parts of the channel steel, the bottoms and the side parts of the clamping ports are respectively provided with screw holes 16 used for connecting locking studs 15, the two sides of the connecting plate are fixed on the upper parts of the upright posts through bolts 17, the contact switch 6 is fixed on the connecting plate, and the connecting plate 13 is provided with a strip-shaped groove 22 used for being adjustably connected with the contact switch 6; a group of supporting frames 5 are arranged beside the first pulley 1, namely, two sides of the first pulley 1 are respectively provided with an upright post, a connecting plate 13 is arranged above the first pulley 1, and the contact switch 6 is provided with two sides which are connected on the connecting plate 13 and are close to the first pulley 1; the side of the second pulley block 2 is provided with two groups of supporting frames 5, namely, two groups of supporting frames 5 are symmetrically arranged on the plane formed by the axis of the limiting rod 8 and the axis of the second pulley block 2, each group of supporting frames 5 comprises a stand column and a connecting plate positioned above the second pulley block, the contact switch is arranged on the outer side surface of the connecting plate so as to be convenient to disassemble and assemble, and the connecting plate and the contact switch are symmetrical to the plane.
Furthermore, in order to reduce the occurrence of the groove release of the steel wire rope 4, the frame 3 is vertically provided with connecting plates 7 positioned at two sides of the first pulley 1 or the second pulley block 2, the connecting plates 7 at the two sides are fixedly connected with limiting rods 8 positioned above the first pulley or the second pulley block and used for limiting the separation of the steel wire rope, the limiting rods 8 are arranged along the axis direction parallel to the first pulley or the second pulley block, and the limiting rods 8 are close to the tangent line of the pulleys.
Further, for reasonable in design, above-mentioned frame 3 includes two channel steel 9 and connects linking roof beam 10 of two channel steel tip, is equipped with deep floor 11 between channel steel 9 and the linking roof beam 10, and the notch of two channel steel sets up back to the back mutually.
Furthermore, in order to facilitate the use of the support frame adapted to racks of different sizes, the upper and lower edges of the two ends of the connecting plate are provided with spaced U-shaped grooves 18, the bolts 17 are locked in the U-shaped grooves 18 of the connecting plate, when the support frame is installed, the connecting plate is locked on two upright posts through the bolts according to the distance between two groove-shaped steels in advance, the clamping ports 14 of the upright posts are clamped into the upper wing plate pieces 23 of the groove-shaped steels, the upright posts penetrate through the screw holes 16 and are locked on the upper wing plate pieces 23 through the studs 15, the adjusting distance is finely adjusted through the depth of the upright posts clamped into the upper wing plate pieces 23, the silicon rubber pieces 25 in contact with the upper surfaces of the upper wing plate pieces 23 are arranged in the clamping ports 14, and the silicon rubber pieces
Further, for the convenience of triggering, the contact of the contact switch 6 is obliquely arranged on the connecting plate 13, the inclination is 20-30 degrees, the lower end part of the contact switch is close to the side surface of the pulley but is not contacted, and the side surface of each pulley is provided with a contact switch which can be a contact switch with a model KFC-P01-10FB manufactured by Zhejiang Kangle electronics Co.
Furthermore, for reasonable design, each contact switch 6 is connected in series, a wireless signal generator 19 is arranged in a series circuit, a wireless signal receiver 20 which is wirelessly matched with the wireless signal generator is arranged in a control bin of the tower crane, the wireless signal receiver is electrically connected with an alarm bell 21, the alarm bell 21 continuously works after the wireless signal receiver 24 triggers the alarm bell 21 (which can be a buzzer) to give an alarm, and the alarm bell 21 can only be contacted with an operator after the power switch is switched off; fig. 11 is a schematic circuit diagram of an embodiment of the present application, when the wireless signal receiver 24 receives a signal, even if the control electrode of the one-way thyristor 26 is turned on, and the anode and the cathode of the one-way thyristor 26 are turned on, the alarm bell 21 (which may be a buzzer) in the circuit is turned on, and the alarm bell 21 (which may be a buzzer) is kept working, only the switch 27 is turned off manually to turn off the alarm bell 21.
The utility model discloses tower crane is wire rope jumping groove alarm device for trolley, wherein tower crane is wire rope jumping groove alarm device for trolley includes the frame that is used for articulated connection first pulley and second assembly pulley, first pulley and second assembly pulley are around being equipped with wire rope, stand on the frame and be equipped with the support frame and connect the contact switch on the support frame immediately, the contact switch is established in the both sides of first pulley or second assembly pulley; during operation, wire rope slides in the pulley groove of first pulley and second assembly pulley, when unexpected the wire rope breaks away from the pulley groove, the wire rope that breaks away from the pulley groove can touch contact switch promptly, and operating personnel can learn wire rope through trigger switch's closure and break away from the pulley groove, can take measures.
Furthermore, the contact switches are connected in series, a wireless signal generator is arranged in the series circuit, a wireless signal receiver wirelessly matched with the wireless signal generator is arranged in a control bin of the tower crane, and the wireless signal receiver is electrically connected with the alarm bell; when the steel wire rope is separated from the pulley groove, the steel wire rope separated from the pulley groove can touch the contact switch, the wireless signal generator in the series circuit can send a signal to the wireless signal receiver, and the wireless signal receiver can trigger the alarm bell to work when receiving the signal, so that an operator can take measures.
The present invention is not limited to the above preferred embodiments, and various other embodiments can be made by anyone who teaches the present invention. All the equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.
Claims (8)
1. The utility model provides a tower crane jack-up is wire rope jumping groove alarm device for dolly which characterized in that: the device comprises a rack for being hinged with a first pulley and a second pulley block, wherein a steel wire rope is wound on the first pulley and the second pulley block, a support frame and a contact switch connected to the support frame are vertically arranged on the rack, and the contact switch is arranged on two sides of the first pulley or the second pulley block.
2. The steel wire rope groove jumping alarm device for the tower crane hoisting trolley according to claim 1, characterized in that: the machine frame is vertically provided with connecting plates positioned at two sides of the first pulley or the second pulley block, the connecting plates at the two sides are fixedly connected with limiting rods positioned above the first pulley or the second pulley block and used for limiting the separation of the steel wire rope, and the limiting rods are arranged along the axis direction parallel to the first pulley or the second pulley block.
3. The steel wire rope groove jumping alarm device for the tower crane hoisting trolley according to claim 1, characterized in that: the frame includes two channel section steel and connects the linking roof beam of two channel section steel tip, is equipped with deep floor between channel section steel and the linking roof beam, and the notch of two channel section steel sets up back to the back mutually.
4. The steel wire rope groove jumping alarm device for the tower crane hoisting trolley according to claim 1, characterized in that: the second pulley block comprises a second pulley and a third pulley which are coaxially hinged.
5. The steel wire rope groove jumping alarm device for the tower crane hoisting trolley according to claim 3, characterized in that: the support frame is including connecting the stand on both sides channel-section steel and connecting the even board on coexistence post upper portion, and the lower part of stand has the joint and fixes the centre gripping mouth on channel-section steel upper portion, the bottom and the lateral part of centre gripping mouth are equipped with the screw that is used for connecting locking double-screw bolt respectively, even the board both sides are passed through the bolt fastening on the upper portion of stand, the contact switch is fixed on even board.
6. The steel wire rope groove jumping alarm device for the tower crane trolley according to claim 5, characterized in that: u-shaped grooves are formed in the upper edge and the lower edge of the two ends of the connecting plate at intervals, and the bolts are locked in the U-shaped grooves of the connecting plate.
7. The steel wire rope groove jumping alarm device for the tower crane trolley according to claim 5, characterized in that: the contact piece of the contact piece switch is obliquely arranged on the connecting plate, the lower end part of the contact piece switch is close to the side face of the pulley, and the side face of each pulley is provided with the contact piece switch.
8. The steel wire rope groove jumping alarm device for the tower crane hoisting trolley according to claim 1, characterized in that: each contact switch is connected in series, a wireless signal generator is arranged in the series circuit, a wireless signal receiver wirelessly matched with the wireless signal generator is arranged in a control bin of the tower crane, and the wireless signal receiver is electrically connected with an alarm bell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921172017.XU CN210855063U (en) | 2019-07-24 | 2019-07-24 | Steel wire rope groove-jumping alarm device for tower crane hoisting trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921172017.XU CN210855063U (en) | 2019-07-24 | 2019-07-24 | Steel wire rope groove-jumping alarm device for tower crane hoisting trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210855063U true CN210855063U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921172017.XU Expired - Fee Related CN210855063U (en) | 2019-07-24 | 2019-07-24 | Steel wire rope groove-jumping alarm device for tower crane hoisting trolley |
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| CN (1) | CN210855063U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110562867A (en) * | 2019-07-24 | 2019-12-13 | 福建工程学院 | Steel wire rope groove-jumping alarm device for tower crane hoisting trolley and working method thereof |
-
2019
- 2019-07-24 CN CN201921172017.XU patent/CN210855063U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110562867A (en) * | 2019-07-24 | 2019-12-13 | 福建工程学院 | Steel wire rope groove-jumping alarm device for tower crane hoisting trolley and working method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200626 Termination date: 20210724 |
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| CF01 | Termination of patent right due to non-payment of annual fee |