阅读说明：本技术 一种天车钢丝绳倾斜警示装置及方法 (Crown block steel wire rope inclination warning device and method ) 是由 马建成 马懿赫 李太全 马亚男 赵艳玲 韩书娜 李强国 于 2021-07-29 设计创作，主要内容包括：本发明涉及一种天车钢丝绳倾斜警示装置及方法,属于天车电气技术领域。本发明的技术方案是：在天车主小车下方和副小车下方的主钩钢丝绳和副钩钢丝绳前后分别安装一组钢丝绳倾斜检测光电开关,在主钩钢丝绳和副钩钢丝绳倾斜达到或超过预先设定的角度时发出警示信号。本发明的有益效果是：当钢丝绳倾斜超过一定角度时,检测光电开关动作给出钢丝绳倾斜警示信号,提醒天车工及时纠正操作,避免撞击滑线挡板,保证了安全生产。(The invention relates to a crown block steel wire rope inclination warning device and method, and belongs to the technical field of crown block electricity. The technical scheme of the invention is as follows: a group of steel wire rope inclination detection photoelectric switches are respectively arranged at the front and the back of a main hook steel wire rope and an auxiliary hook steel wire rope below a main trolley and an auxiliary trolley of the overhead travelling crane, and warning signals are sent out when the main hook steel wire rope and the auxiliary hook steel wire rope incline to reach or exceed preset angles. The invention has the beneficial effects that: when the steel wire rope inclines beyond a certain angle, the photoelectric switch action is detected to give a steel wire rope inclination warning signal, a crown block worker is reminded of correcting operation in time, the sliding wire baffle is prevented from being impacted, and safety production is guaranteed.)

1. The utility model provides a crown block wire rope slope warning device which characterized in that: comprises an auxiliary hook steel wire rope forward inclination detection inclined photoelectric switch baffle group (3), an auxiliary hook steel wire rope rear inclination detection photoelectric switch baffle group (4), an auxiliary hook steel wire rope rear inclination detection photoelectric switch group (5), an auxiliary hook steel wire rope front inclination detection photoelectric switch group (6), a main hook steel wire rope rear inclination detection photoelectric switch baffle group (11), a main hook steel wire rope front inclination detection photoelectric switch baffle group (12), a main hook steel wire rope front inclination detection photoelectric switch group (13), a main hook steel wire rope rear inclination detection photoelectric switch group (14), an auxiliary hook steel wire rope rear inclination detection relay (25), an auxiliary hook steel wire rope front inclination detection relay (26), a main hook steel wire rope rear inclination detection relay (27), a main hook steel wire rope front inclination detection relay (28), an inclination warning relay (34) and an inclination warning buzzer (35), the auxiliary trolley (1) and the main trolley (10) are arranged above the trolley beam (2); an auxiliary hook steel wire rope forward inclination detection inclined photoelectric switch baffle group (3) and an auxiliary hook steel wire rope rear inclination detection photoelectric switch baffle group (4) are arranged below an auxiliary trolley (1), an auxiliary hook steel wire rope rear inclination detection photoelectric switch group (5) is arranged on the auxiliary hook steel wire rope rear inclination detection photoelectric switch baffle group (4), and an auxiliary hook steel wire rope front inclination detection photoelectric switch group (6) is arranged on the auxiliary hook steel wire rope front inclination detection photoelectric switch baffle group (3); a main hook steel wire rope rear inclination detection photoelectric switch baffle group (11) and a main hook steel wire rope front inclination detection photoelectric switch baffle group (12) are arranged below a main trolley (10), a main hook steel wire rope rear inclination detection photoelectric switch group (14) is arranged on the main hook steel wire rope rear inclination detection photoelectric switch baffle group (11), and a main hook steel wire rope front inclination detection photoelectric switch group (13) is arranged on the main hook steel wire rope front inclination detection photoelectric switch baffle group (12); the upper end of an auxiliary hook steel wire rope (8) is respectively connected with an auxiliary hook steel wire rope forward inclination detection inclined photoelectric switch baffle group (3) and an auxiliary hook steel wire rope rear inclination detection photoelectric switch baffle group (4), and the lower end of the auxiliary hook steel wire rope (8) is connected with an auxiliary hook head (9); the upper end of a main hook steel wire rope (15) is respectively connected with a main hook steel wire rope rear inclination detection photoelectric switch baffle group (11) and a main hook steel wire rope front inclination detection photoelectric switch baffle group (12), and the lower end of the main hook steel wire rope (15) is connected with a main hook head (16);

the auxiliary hook steel wire rope rear inclination detection photoelectric switch group (5) is connected with an inclination warning relay (34) through an auxiliary hook steel wire rope rear inclination detection relay (25), the auxiliary hook steel wire rope front inclination detection photoelectric switch group (6) is connected with the inclination warning relay (34) through an auxiliary hook steel wire rope front inclination detection relay (26), the main hook steel wire rope front inclination detection photoelectric switch group (13) is connected with the inclination warning relay (34) through a main hook steel wire rope front inclination detection relay (28), the main hook steel wire rope rear inclination detection photoelectric switch group (14) is connected with the inclination warning relay (34) through a main hook steel wire rope rear inclination detection relay (27), and the output end of the inclination warning relay (34) is connected with an inclination warning buzzer (35).

2. The crown block steel wire rope inclination warning device according to claim 1, characterized in that: the auxiliary hook steel wire rope rear inclination detection photoelectric switch baffle group (4) comprises an auxiliary hook steel wire rope rear inclination detection transmitting end photoelectric switch baffle (17) and an auxiliary hook steel wire rope rear inclination detection receiving end photoelectric switch baffle (19), the auxiliary hook steel wire rope rear inclination detection photoelectric switch group (5) comprises an auxiliary hook steel wire rope rear inclination detection transmitting end photoelectric switch (18) and an auxiliary hook steel wire rope rear inclination detection receiving end photoelectric switch (20), the auxiliary hook steel wire rope rear inclination detection transmitting end photoelectric switch (18) is installed on the auxiliary hook steel wire rope rear inclination detection transmitting end photoelectric switch baffle (17), and the auxiliary hook steel wire rope rear inclination detection receiving end photoelectric switch (20) is installed on the auxiliary hook steel wire rope rear inclination detection receiving end photoelectric switch baffle (19).

3. A warning method for inclination of a steel wire rope of an overhead travelling crane is characterized by comprising the following steps:

(1) the auxiliary hook steel wire rope rear inclination detection photoelectric switch group and the auxiliary hook steel wire rope front inclination detection photoelectric switch group are arranged below the auxiliary trolley, and the main hook steel wire rope front inclination detection photoelectric switch group and the main hook steel wire rope rear inclination detection photoelectric switch group are arranged below the main trolley; the upper end of the auxiliary hook steel wire rope is respectively connected with the main hook steel wire rope forward-inclination detection photoelectric switch group and the main hook steel wire rope backward-inclination detection photoelectric switch group, and the lower end of the auxiliary hook steel wire rope is connected with the auxiliary hook head; the upper end of the main hook steel wire rope is respectively connected with the main hook steel wire rope forward-inclination detection photoelectric switch group and the main hook steel wire rope backward-inclination detection photoelectric switch group, and the lower end of the main hook steel wire rope is connected with the main hook head;

(2) the calculation formula of the horizontal offset of the steel wire rope is as follows:

L=2ПDβ/360

wherein: l is the horizontal offset of a certain point on the steel wire rope relative to the original position, and the unit is CM;

d is the vertical distance between the original position of a certain point and the plane of the trolley, and the unit is CM;

beta is an inclination angle;

(3) when the main hook steel wire rope inclines to a set inclination warning angle, an inclination detection relay coil connected with a main hook steel wire rope forward inclination detection photoelectric switch group and a main hook steel wire rope backward inclination detection photoelectric switch group is powered on to act, so that the inclination warning relay coil is powered on to act, and an inclination warning buzzer sends out warning to remind a crown block worker to correct operation in time to avoid accidents; the auxiliary hook steel wire rope inclines, and the detection action process of the device is the same as the inclination of the main hook steel wire rope.

4. The crown block steel wire rope inclination warning method according to claim 3, characterized in that: the auxiliary hook steel wire rope rear inclination detection photoelectric switch group and the auxiliary hook steel wire rope front inclination detection photoelectric switch group are arranged 1 meter below the auxiliary trolley, and the positions of the left side and the right side of the auxiliary hook steel wire rope are 50 CM; the main hook steel wire rope front inclination detection photoelectric switch group and the main hook steel wire rope rear inclination detection photoelectric switch group are arranged 1 meter below the main trolley, and the positions of the left side and the right side of the main hook steel wire rope are 50 CM.

Technical Field

The invention relates to a crown block steel wire rope inclination warning device and method, and belongs to the technical field of crown block electricity.

Background

The crown block is a hoisting device which is used in a large number in various industrial and mining enterprises, a charging 110T crown block in a steel plant hoists a waste steel bucket through a main hook and an auxiliary hook together to add waste steel to a converter, due to the process layout reason, the gap between the front part of the waste steel bucket and a furnace door is 60cm, the distance between the rear part of the waste steel bucket and a sliding line of the crown block is also only 60cm, once the main trolley, the auxiliary trolley, the main trolley and the auxiliary trolley are not well matched in the operation process, the condition of steel wire rope inclination can occur, and when the inclination is serious, if the main trolley and the auxiliary trolley are operated at the moment, the waste steel bucket can swing back and forth to impact the sliding line of the crown block or the furnace door. The situation is the most common in the process of withdrawing the bucket backwards after the 110T crown block finishes adding the scrap steel to the converter, the steel wire rope can collide with the slide wire baffle plate if the steel wire rope is seriously inclined, the scrap steel bucket has large inertia, the situation that the steel wire rope collides with the slide wire baffle plate to cause power failure of the whole feeding cross slide wire occurs every year in actual production, the impact on the production is very large, and the 110T crown block slide wire is a high-voltage slide wire, so that personnel can safely confirm on site and contact the high-voltage personnel to supply power, and basically, the power is supplied for about 1 hour each time.

Disclosure of Invention

The invention aims to provide a crown block steel wire rope inclination warning device and a crown block steel wire rope inclination warning method.

The technical scheme of the invention is as follows: an inclination warning device for a crown block steel wire rope comprises an auxiliary hook steel wire rope forward inclination detection and inclination detection photoelectric switch baffle group, an auxiliary hook steel wire rope backward inclination detection photoelectric switch group, an auxiliary hook steel wire rope forward inclination detection photoelectric switch group, a main hook steel wire rope backward inclination detection photoelectric switch baffle group, a main hook steel wire rope forward inclination detection photoelectric switch group, a main hook steel wire rope backward inclination detection relay, an auxiliary hook steel wire rope forward inclination detection relay, a main hook steel wire rope backward inclination detection relay, a main hook steel wire rope forward inclination detection relay, an inclination warning relay and an inclination warning buzzer, wherein an auxiliary trolley and a main trolley are arranged above a trolley beam; the auxiliary hook steel wire rope forward inclination detection inclined photoelectric switch baffle group and the auxiliary hook steel wire rope backward inclination detection photoelectric switch baffle group are arranged below the auxiliary trolley, the auxiliary hook steel wire rope backward inclination detection photoelectric switch group is arranged on the auxiliary hook steel wire rope backward inclination detection photoelectric switch baffle group, and the auxiliary hook steel wire rope forward inclination detection photoelectric switch group is arranged on the auxiliary hook steel wire rope forward inclination detection photoelectric switch baffle group; the main hook steel wire rope rear inclination detection photoelectric switch baffle group and the main hook steel wire rope front inclination detection photoelectric switch baffle group are arranged below the main trolley, the main hook steel wire rope rear inclination detection photoelectric switch group is arranged on the main hook steel wire rope rear inclination detection photoelectric switch baffle group, and the main hook steel wire rope front inclination detection photoelectric switch group is arranged on the main hook steel wire rope front inclination detection photoelectric switch baffle group; the upper end of the auxiliary hook steel wire rope is respectively connected with the forward inclination detection photoelectric switch baffle group of the auxiliary hook steel wire rope and the backward inclination detection photoelectric switch baffle group of the auxiliary hook steel wire rope, and the lower end of the auxiliary hook steel wire rope is connected with the hook head of the auxiliary hook; the upper end of the main hook steel wire rope is respectively connected with the main hook steel wire rope backward inclination detection photoelectric switch baffle group and the main hook steel wire rope forward inclination detection photoelectric switch baffle group, and the lower end of the main hook steel wire rope is connected with the main hook head;

the auxiliary hook steel wire rope backward inclination detection photoelectric switch group is connected with the inclination warning relay through an auxiliary hook steel wire rope backward inclination detection relay, the auxiliary hook steel wire rope forward inclination detection photoelectric switch group is connected with the inclination warning relay through an auxiliary hook steel wire rope forward inclination detection relay, the main hook steel wire rope forward inclination detection photoelectric switch group is connected with the inclination warning relay through a main hook steel wire rope forward inclination detection relay, the main hook steel wire rope backward inclination detection photoelectric switch group is connected with the inclination warning relay through a main hook steel wire rope backward inclination detection relay, and the output end of the inclination warning relay is connected with the inclination warning buzzer.

The auxiliary hook steel wire rope rear inclination detection photoelectric switch baffle group comprises an auxiliary hook steel wire rope rear inclination detection transmitting end photoelectric switch baffle and an auxiliary hook steel wire rope rear inclination detection receiving end photoelectric switch baffle, the auxiliary hook steel wire rope rear inclination detection photoelectric switch group comprises an auxiliary hook steel wire rope rear inclination detection transmitting end photoelectric switch and an auxiliary hook steel wire rope rear inclination detection receiving end photoelectric switch, the auxiliary hook steel wire rope rear inclination detection transmitting end photoelectric switch is installed on the auxiliary hook steel wire rope rear inclination detection transmitting end photoelectric switch baffle, and the auxiliary hook steel wire rope rear inclination detection receiving end photoelectric switch is installed on the auxiliary hook steel wire rope rear inclination detection receiving end photoelectric switch baffle.

A warning method for inclination of a steel wire rope of an overhead travelling crane is characterized by comprising the following steps:

(1) the auxiliary hook steel wire rope rear inclination detection photoelectric switch group and the auxiliary hook steel wire rope front inclination detection photoelectric switch group are arranged below the auxiliary trolley, and the main hook steel wire rope front inclination detection photoelectric switch group and the main hook steel wire rope rear inclination detection photoelectric switch group are arranged below the main trolley; the upper end of the auxiliary hook steel wire rope is respectively connected with the main hook steel wire rope forward-inclination detection photoelectric switch group and the main hook steel wire rope backward-inclination detection photoelectric switch group, and the lower end of the auxiliary hook steel wire rope is connected with the auxiliary hook head; the upper end of the main hook steel wire rope is respectively connected with the main hook steel wire rope forward-inclination detection photoelectric switch group and the main hook steel wire rope backward-inclination detection photoelectric switch group, and the lower end of the main hook steel wire rope is connected with the main hook head;

(2) the calculation formula of the horizontal offset of the steel wire rope is as follows:

L=2ПDβ/360

wherein: l is the horizontal offset of a certain point on the steel wire rope relative to the original position, and the unit is CM;

d is the vertical distance between the original position of a certain point and the plane of the trolley, and the unit is CM;

beta is an inclination angle;

(3) when the main hook steel wire rope inclines to a set inclination warning angle, an inclination detection relay coil connected with a main hook steel wire rope forward inclination detection photoelectric switch group and a main hook steel wire rope backward inclination detection photoelectric switch group is powered on to act, so that the inclination warning relay coil is powered on to act, and an inclination warning buzzer sends out warning to remind a crown block worker to correct operation in time to avoid accidents; the auxiliary hook steel wire rope inclines, and the detection action process of the device is the same as the inclination of the main hook steel wire rope.

The auxiliary hook steel wire rope rear inclination detection photoelectric switch group and the auxiliary hook steel wire rope front inclination detection photoelectric switch group are arranged 1 meter below the auxiliary trolley, and the positions of the left side and the right side of the auxiliary hook steel wire rope are 50 CM; the main hook steel wire rope front inclination detection photoelectric switch group and the main hook steel wire rope rear inclination detection photoelectric switch group are arranged 1 meter below the main trolley, and the positions of the left side and the right side of the main hook steel wire rope are 50 CM.

The invention has the beneficial effects that: the photoelectric switches are arranged in the front and the back of the main hook steel wire rope and the auxiliary hook steel wire rope to detect the inclination of the steel wire ropes, when the inclination of the steel wire ropes exceeds a certain angle, the photoelectric switches act to give out a steel wire rope inclination warning signal to remind a crown block worker of correcting operation in time, so that the sliding wire baffle is prevented from being impacted, and the safety production is ensured.

Drawings

FIG. 1 is a side view of the overall structure of the present invention;

FIG. 2 is a front view of the tilt detection mounting of the present invention after the secondary hook;

FIG. 3 is a schematic view of the electrical control portion connections of the present invention;

in the figure: an auxiliary trolley 1, a trolley beam 2, an auxiliary hook wire rope forward inclination detection inclined photoelectric switch baffle group 3, an auxiliary hook wire rope backward inclination detection photoelectric switch baffle group 4, an auxiliary hook wire rope backward inclination detection photoelectric switch group 5, an auxiliary hook wire rope forward inclination detection photoelectric switch group 6, a crown block slide wire 7, an auxiliary hook wire rope 8, an auxiliary hook head 9, a main trolley 10, a main hook wire rope backward inclination detection photoelectric switch baffle group 11, a main hook wire rope forward inclination detection photoelectric switch baffle group 12, a main hook wire rope forward inclination detection photoelectric switch group 13, a main hook wire rope backward inclination detection photoelectric switch group 14, a main hook wire rope 15, a main hook head 16, an auxiliary hook wire rope backward inclination detection transmitting end photoelectric switch baffle 17, an auxiliary hook wire rope backward inclination detection transmitting end photoelectric switch 18, an auxiliary hook wire rope backward inclination detection receiving end photoelectric switch baffle 19, an auxiliary hook wire rope backward inclination detection receiving end photoelectric switch 20, Auxiliary hook wire rope back tilt detection photoelectric switch normally open contact 21, auxiliary hook wire rope front tilt detection photoelectric switch normally open contact 22, main hook wire rope back tilt detection photoelectric switch normally open contact 23, main hook wire rope front tilt detection photoelectric switch normally open contact 24, auxiliary hook wire rope back tilt detection relay 25, auxiliary hook wire rope front tilt detection relay 26, main hook wire rope back tilt detection relay 27, main hook wire rope front tilt detection relay 28, main hook wire rope front tilt detection relay normally open contact 29, main hook wire rope back tilt detection relay normally open contact 30, auxiliary hook wire rope front tilt detection relay normally open contact 31, auxiliary hook wire rope back tilt detection relay normally open contact 32, tilt warning relay normally open delay open contact 33, tilt warning relay 34, tilt warning buzzer 35.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present invention with reference to the drawings of the embodiments, and it is obvious that the described embodiments are a small part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work based on the embodiments of the present invention belong to the protection scope of the present invention.

An inclination warning device for a crown block steel wire rope comprises an auxiliary hook steel wire rope forward inclination detection inclined photoelectric switch baffle group 3, an auxiliary hook steel wire rope rear inclination detection photoelectric switch baffle group 4, an auxiliary hook steel wire rope rear inclination detection photoelectric switch group 5, an auxiliary hook steel wire rope front inclination detection photoelectric switch group 6, a main hook steel wire rope rear inclination detection photoelectric switch baffle group 11, a main hook steel wire rope front inclination detection photoelectric switch baffle group 12 and a main hook steel wire rope front inclination detection photoelectric switch group 13, the system comprises a main hook steel wire rope backward inclination detection photoelectric switch group 14, an auxiliary hook steel wire rope backward inclination detection relay 25, an auxiliary hook steel wire rope front inclination detection relay 26, a main hook steel wire rope backward inclination detection relay 27, a main hook steel wire rope forward inclination detection relay 28, an inclination warning relay 34 and an inclination warning buzzer 35, wherein the auxiliary trolley 1 and the main trolley 10 are arranged above a trolley beam 2; an auxiliary hook steel wire rope forward inclination detection inclined photoelectric switch baffle group 3 and an auxiliary hook steel wire rope rear inclination detection photoelectric switch baffle group 4 are arranged below an auxiliary trolley 1, an auxiliary hook steel wire rope rear inclination detection photoelectric switch group 5 is arranged on the auxiliary hook steel wire rope rear inclination detection photoelectric switch baffle group 4, and an auxiliary hook steel wire rope front inclination detection photoelectric switch group 6 is arranged on the auxiliary hook steel wire rope front inclination detection photoelectric switch baffle group 3; a main hook steel wire rope rear inclination detection photoelectric switch baffle group 11 and a main hook steel wire rope front inclination detection photoelectric switch baffle group 12 are arranged below the main trolley 10, a main hook steel wire rope rear inclination detection photoelectric switch group 14 is arranged on the main hook steel wire rope rear inclination detection photoelectric switch baffle group 11, and a main hook steel wire rope front inclination detection photoelectric switch group 13 is arranged on the main hook steel wire rope front inclination detection photoelectric switch baffle group 12; the upper end of the auxiliary hook steel wire rope 8 is respectively connected with the auxiliary hook steel wire rope forward inclination detection inclined photoelectric switch baffle group 3 and the auxiliary hook steel wire rope rear inclination detection photoelectric switch baffle group 4, and the lower end of the auxiliary hook steel wire rope 8 is connected with an auxiliary hook head 9; the upper end of a main hook steel wire rope 15 is respectively connected with a main hook steel wire rope rear inclination detection photoelectric switch baffle group 11 and a main hook steel wire rope front inclination detection photoelectric switch baffle group 12, and the lower end of the main hook steel wire rope 15 is connected with a main hook head 16;

the auxiliary hook wire rope backward inclination detection photoelectric switch group 5 is connected with the inclination warning relay 34 through an auxiliary hook wire rope backward inclination detection relay 25, the auxiliary hook wire rope forward inclination detection photoelectric switch group 6 is connected with the inclination warning relay 34 through an auxiliary hook wire rope forward inclination detection relay 26, the main hook wire rope forward inclination detection photoelectric switch group 13 is connected with the inclination warning relay 34 through a main hook wire rope forward inclination detection relay 28, the main hook wire rope backward inclination detection photoelectric switch group 14 is connected with the inclination warning relay 34 through a main hook wire rope backward inclination detection relay 27, and the output end of the inclination warning relay 34 is connected with the inclination warning buzzer 35.

The auxiliary hook wire rope rear inclination detection photoelectric switch baffle group 4 comprises an auxiliary hook wire rope rear inclination detection transmitting end photoelectric switch baffle 17 and an auxiliary hook wire rope rear inclination detection receiving end photoelectric switch baffle 19, the auxiliary hook wire rope rear inclination detection photoelectric switch group 5 comprises an auxiliary hook wire rope rear inclination detection transmitting end photoelectric switch 18 and an auxiliary hook wire rope rear inclination detection receiving end photoelectric switch 20, the auxiliary hook wire rope rear inclination detection transmitting end photoelectric switch 18 is installed on the auxiliary hook wire rope rear inclination detection transmitting end photoelectric switch baffle 17, and the auxiliary hook wire rope rear inclination detection receiving end photoelectric switch 20 is installed on the auxiliary hook wire rope rear inclination detection receiving end photoelectric switch baffle 19.

A warning method for inclination of a steel wire rope of an overhead travelling crane is characterized by comprising the following steps:

(1) the auxiliary hook steel wire rope rear inclination detection photoelectric switch group and the auxiliary hook steel wire rope front inclination detection photoelectric switch group are arranged below the auxiliary trolley, and the main hook steel wire rope front inclination detection photoelectric switch group and the main hook steel wire rope rear inclination detection photoelectric switch group are arranged below the main trolley; the upper end of the auxiliary hook steel wire rope is respectively connected with the main hook steel wire rope forward-inclination detection photoelectric switch group and the main hook steel wire rope backward-inclination detection photoelectric switch group, and the lower end of the auxiliary hook steel wire rope is connected with the auxiliary hook head; the upper end of the main hook steel wire rope is respectively connected with the main hook steel wire rope forward-inclination detection photoelectric switch group and the main hook steel wire rope backward-inclination detection photoelectric switch group, and the lower end of the main hook steel wire rope is connected with the main hook head;

(2) the calculation formula of the horizontal offset of the steel wire rope is as follows:

L=2ПDβ/360

wherein: l is the horizontal offset of a certain point on the steel wire rope relative to the original position, and the unit is CM;

d is the vertical distance between the original position of a certain point and the plane of the trolley, and the unit is CM;

beta is an inclination angle;

(3) when the main hook steel wire rope inclines to a set inclination warning angle, an inclination detection relay coil connected with a main hook steel wire rope forward inclination detection photoelectric switch group and a main hook steel wire rope backward inclination detection photoelectric switch group is powered on to act, so that the inclination warning relay coil is powered on to act, and an inclination warning buzzer sends out warning to remind a crown block worker to correct operation in time to avoid accidents; the auxiliary hook steel wire rope inclines, and the detection action process of the device is the same as the inclination of the main hook steel wire rope.

The auxiliary hook steel wire rope rear inclination detection photoelectric switch group and the auxiliary hook steel wire rope front inclination detection photoelectric switch group are arranged 1 meter below the auxiliary trolley, and the positions of the left side and the right side of the auxiliary hook steel wire rope are 50 CM; the main hook steel wire rope front inclination detection photoelectric switch group and the main hook steel wire rope rear inclination detection photoelectric switch group are arranged 1 meter below the main trolley, and the positions of the left side and the right side of the main hook steel wire rope are 50 CM.

In practical application, the vertical distance between the lowest part of the sliding line of the crown block and the plane of the main trolley and the auxiliary trolley is about 7 meters. Taking the example that the auxiliary hook steel wire rope is inclined backwards, when the backward inclination angle of the auxiliary hook steel wire rope is 1 degree during feeding of the scrap steel hopper, the horizontal distance from the auxiliary hook steel wire rope to the lowest position of the sliding line of the crown block (wherein 12.2CM is the horizontal offset of the auxiliary hook steel wire rope at the position of 7 meters) is 60-12.2=47.8 CM; when the backward inclination angle of the auxiliary hook steel wire rope is 2 degrees, the horizontal distance between the auxiliary hook steel wire rope and the lowest position of the sliding line of the crown block (wherein 24.4CM is the horizontal offset of the auxiliary hook steel wire rope at the position of 7 meters) is 60-24.4=35.6 CM; when the backward inclination angle of the auxiliary hook steel wire rope is 5 degrees, the horizontal distance between the auxiliary hook steel wire rope and the lowest position of the sliding line of the crown block (wherein 61CM is the horizontal offset of the auxiliary hook steel wire rope at the position of 7 meters) is 60-61= -1CM, namely the sliding line collides with the sliding line.

According to the crown block steel wire rope inclination warning device and method, the main hook steel wire rope inclination detection transmitting end photoelectric switch and the auxiliary hook steel wire rope inclination detection receiving end photoelectric switch are respectively arranged below the main trolley and the auxiliary trolley, and the positions of 50CM positions on two sides of the steel wire rope are arranged. When the vertical distance of the installation is too close to the bottom of the trolley, the displacement generated by the angle change is too small, and the photoelectric switch of the transmitting end and the photoelectric switch of the receiving end are installed on two sides of the steel wire rope, 1 meter below the trolley, in the inclination detection of the steel wire rope. Taking the example that the auxiliary hook steel wire rope is inclined backwards, when the backward inclination angle of the auxiliary hook steel wire rope is 1 degree, the horizontal deflection displacement generated by the auxiliary hook steel wire rope at the position of 1 meter is 1.7cm, and the horizontal deflection displacement generated by the auxiliary hook steel wire rope at the lowest position of the slide line is 12.2 cm; when the backward inclination angle of the auxiliary hook steel wire rope is 2 degrees, the horizontal deflection displacement generated by the auxiliary hook steel wire rope at the position of 1 meter is 3.4cm, and the horizontal deflection displacement generated by the auxiliary hook steel wire rope at the lowest position of the slide line is 24.4 cm; when the backward inclination angle of the auxiliary hook steel wire rope is 5 degrees, the horizontal deflection displacement generated by the steel wire rope at the auxiliary hook position of 1 meter is 8.7cm, and the horizontal deflection displacement generated by the auxiliary hook steel wire rope at the lowest position of the slide line is 61 cm. Therefore, the auxiliary hook steel wire rope inclination detection transmitting end photoelectric switch and the receiving end photoelectric switch are arranged at 50CM positions on two sides of the auxiliary hook steel wire rope, 1 m below the trolley, and the north displacement is 3.4 CM. When the auxiliary hook steel wire rope inclines to or exceeds 2 degrees, the photoelectric switch detects a shielding signal of the auxiliary hook steel wire rope, the auxiliary hook steel wire rope inclines, an auxiliary hook steel wire rope inclination warning signal is immediately sent to a crown block worker to correct the operation in time, the inclined displacement generated by the auxiliary hook steel wire rope at the lowest position of the sliding line is 24.4cm, and the safety distance between the auxiliary hook steel wire rope and the sliding line is enough.

As shown in fig. 3, the main hook wire rope front inclination detection photoelectric switch normally open contact 24 is connected with the main hook wire rope front inclination detection relay 28 coil;

the main hook wire rope rear inclination detection photoelectric switch normally open contact 23 is connected with the main hook wire rope rear inclination detection relay 27 coil;

the auxiliary hook wire rope forward inclination detection photoelectric switch normally open contact 22 is connected with the auxiliary hook wire rope forward inclination detection relay 26 coil;

the auxiliary hook steel wire rope rear inclination detection photoelectric switch normally open contact 21 is connected with the auxiliary hook steel wire rope rear inclination detection relay 25 coil;

the normally open contact 29 of the main hook steel wire rope front inclination detection relay is connected with the coil of the inclination warning relay 34;

the normally open contact 30 of the main hook steel wire rope rear inclination detection relay is connected with the coil of the inclination warning relay 34;

the normally open contact 31 of the auxiliary hook steel wire rope front inclination detection relay is connected with the coil of the inclination warning relay 34;

the normally open contact 32 of the auxiliary hook steel wire rope rear inclination detection relay is connected with the coil of the inclination warning relay 34;

the tilt warning relay normally open time delay disconnection contact 33 is connected with the tilt warning buzzer 35.

The working process of the invention is as follows:

here, the operation process of the auxiliary hook wire rope inclining forward, the main hook wire rope inclining backward, and the main hook wire rope inclining forward is similar to that described above.

In the overhead traveling crane working process, when the back slope of auxiliary hook wire rope reaches preset slope warning angle (here the set angle is 2 degrees), when auxiliary hook wire rope back slope detects the signal that receiving terminal photoelectric switch 20 can not receive auxiliary hook wire rope back slope detection transmitting terminal photoelectric switch 18, auxiliary hook wire rope back slope detects photoelectric switch normally open contact 21 closed, 25 coils of auxiliary hook wire rope back slope detection relay get electric action, 32 closed auxiliary hook wire rope back slope detection relay normally open contact, 34 coils of slope warning relay get electric action, slope warning relay normally open time delay disconnection contact 33 is closed, slope warning bee calling organ 35 gets electric and sends out warning audible alarm, remind the overhead traveling crane worker to correct the operation, avoid slide-wire blasting accident. If the rear inclination of the auxiliary hook steel wire rope reaches a preset inclination warning angle (the set angle is 2 degrees) and is instantly larger than the warning angle, the normally open delay disconnection contact 33 of the inclination warning relay is closed and then disconnected after the set delay time, and the situation that the inclination warning buzzer 35 is powered on to send out a warning sound alarm has a duration time instead of a pulse type warning sound alarm which is easily ignored by a crown block worker is ensured, so that the crown block worker can be reminded of correcting the operation.