阅读说明：本技术 塔吊起重小车用钢丝绳跳槽报警装置及其工作方法 (Steel wire rope groove-jumping alarm device for tower crane hoisting trolley and working method thereof ) 是由 陈栩 陈辉煌 黄晓伟 陈霞 花海燕 黄登峰 于 2019-07-24 设计创作，主要内容包括：本发明涉及一种塔吊起重小车用钢丝绳跳槽报警装置及其工作方法,其特征在于：其中塔吊起重小车用钢丝绳跳槽报警装置,包括用于铰接连接第一滑轮和第二滑轮组的机架,所述第一滑轮和第二滑轮组绕设有钢丝绳,所述机架上立设有支撑架和连接在支撑架上的触片开关,所述触片开关设在第一滑轮或第二滑轮组的两旁侧。本发明塔吊起重小车用的简易钢丝绳跳槽报警装置结构简单,造价低,易于安装和维护。(The invention relates to a steel wire rope groove jumping alarm device for a tower crane trolley and a working method thereof, and the steel wire rope groove jumping alarm device is characterized in that: wherein tower crane jack-up is wire rope jumping groove alarm device for dolly, including the frame that is used for articulated first pulley and the second assembly pulley of connecting, first pulley and second assembly pulley are around being equipped with wire rope, immediately be equipped with the support frame in the frame and connect the contact switch on the support frame, the both sides side at first pulley or second assembly pulley is established to the contact switch. The simple steel wire rope groove-jumping alarm device for the tower crane hoisting trolley has the advantages of simple structure, low manufacturing cost and easiness in installation and maintenance.)

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.

9. the working method of the steel wire rope groove-jumping alarm device for the tower crane trolley according to claim 1 is characterized in that: the steel wire rope groove jumping alarm device for the tower crane trolley comprises a rack for connecting a first pulley and a second pulley block in a hinged mode, wherein a steel wire rope is wound on the first pulley and the second pulley block, a support frame and contact switches connected to the support frame are vertically arranged on the rack, and the contact switches are arranged on two sides of the first pulley or the second pulley block; 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.

10. The working method of the steel wire rope groove-skipping alarm device for the tower crane hoisting trolley according to claim 9, 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; 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 technical field is as follows:

the invention relates to a steel wire rope groove jumping alarm device for a tower crane trolley and a working method thereof.

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 defects of the prior art, the invention aims to provide a steel wire rope groove-skipping alarm device for a tower crane trolley and a working method thereof.

the invention discloses a steel wire rope groove jumping alarm device for a tower crane trolley, which is 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 invention relates to a steel wire rope groove jumping alarm device for a tower crane trolley and a working method thereof, and the steel wire rope groove jumping alarm device is characterized in that: the steel wire rope groove jumping alarm device for the tower crane trolley comprises a rack which is used for being hinged with a first pulley and a second pulley block, wherein the first pulley and the second pulley block are wound with steel wire ropes; 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 simple steel wire rope groove-jumping alarm device for the tower crane hoisting trolley has the advantages of simple structure, low manufacturing cost and easiness in installation and maintenance.

description of the drawings:

FIG. 1 is a schematic view of the front view configuration 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;

3 FIG. 3 6 3 is 3 a 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 4 3; 3

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 connections of the tact 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 invention more comprehensible, embodiments accompanied with figures are described in detail below.

The invention relates to a steel wire rope groove skipping alarm device for a tower crane trolley, which comprises a frame 3 for connecting a first pulley 1 and a second pulley block 2 in a hinged mode, wherein a steel wire rope 4 is wound on the first pulley 1 and the second pulley block 2, the second pulley block 2 comprises a second pulley 201 and a third pulley 202 which are coaxially hinged, and the winding of the steel wire rope 4 can be that the winding enters from one end of the second pulley 201 to be turned and then is connected to a hanging pulley block, the winding is carried out by the hanging pulley block and then ascends to be connected to the first pulley 1, the winding is carried out by the first pulley 1 and then is connected to the hanging pulley block, the winding is carried out by the hanging pulley block again and then ascends to be connected to the third pulley 202, and the winding is carried out by the; 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 invention relates to a steel wire rope groove jumping alarm device for a tower crane trolley and a working method thereof, wherein the steel wire rope groove jumping alarm device for the tower crane trolley comprises a rack which is used for being hinged with a first pulley and a second pulley block, a steel wire rope is wound around the first pulley and the second pulley block, a support frame and contact switches connected to the support frame are vertically arranged on the rack, and the contact switches are arranged on two sides of the first pulley or the second pulley block; 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-described preferred embodiments, and various other forms can be made by anyone in light of the present invention. All equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.