Ladle crane gantry hook with detection auxiliary device
By setting up a detection auxiliary device on the outside of the gantry hook hook body of the cast crane, the contact signals of the impact rod and the transmitting device are used to ensure the safety of lifting, solving the problem of falling at a high place caused by manual confirmation, and improving the safety of lifting.
Patent Information
- Application Number
- CN202420468812.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-12
AI Technical Summary
When lifting ladle or iron cans, the existing cast crane gantry hooks are not in place due to manual confirmation, which can easily lead to falling from a high place, seriously threatening the safety of ground personnel.
The detection auxiliary device is arranged on the outside of the hook hook body close to the hook cavity, including a transmitting device, a hitting rod and an alarm receiving device. The transmitting device is triggered through the contact between the hitting rod and the circular protective ring, and a signal is sent to the receiving device to ensure that the hook is on the truncated axis. The lifting operation is only performed when it is up.
By adding a signal detection device, the safety confirmation method is expanded, lifting safety is improved, lifting abnormalities are discovered in a timely manner, and the confirmation and hanging method is improved, ensuring that the hook lifts on the trunnions and avoiding falling accidents at high places.
Smart Images
Figure CN222204519U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gantry hooks for casting cranes, in particular to a gantry hook for casting cranes with a detection auxiliary device. Background Art
[0002] Casting crane is an important equipment in steel mills, mainly used for loading iron ladle tanks across molten iron, receiving ladle tanks across molten steel, and lifting empty tanks. It has a high lifting height, large dust in the working conditions, high working environment temperature, high labor intensity, and the materials hoisted are molten metal. Figure 4 As shown, the existing ladle has a tank body 101, the top of the tank body is a ladle opening, and the ladle cover 102 is hooked on the rotating shaft of the ladle opening of the tank body 101 through its own ratchet 103. A pair of ear shafts 104 are symmetrically arranged in the middle of the tank body 101. The ear shafts 104 are cylindrical, and a circular protective ring 105 with a diameter 100mm larger than the ear shaft 104 is installed on the outer side thereof, which is used to ensure that the gantry hook 106 does not fall off the ear shaft 104 when the gantry hook 106 is hung on the ear shaft. After the gantry hooks on both sides enter the ear shafts on both sides of the steel ladle tank or iron ladle tank, the lifting confirmation is usually confirmed on site by the ground commander or by watching the camera monitoring at some special stations. When both sides are confirmed to be in place, the commander issues instructions to carry out the steps of lifting pre-tightening, trial lifting, lifting speed-up, etc. to complete the entire lifting process. When workers become tired and their concentration decreases, the gantry hook facility has high and low precision deviations and the hook shaft is stuck, the ladle or iron ladle is in uneven contact with the ground or equipment, or the video becomes blurred and stuck, the lifting and hoisting confirmation cannot be guaranteed to be safe, which will result in the gantry hook not being lifted on the ear shaft, resulting in inadequate lifting confirmation and a fall from a height during lifting or operation, seriously threatening the safety of ground personnel and causing major operational accidents. Utility Model Content
[0003] The utility model provides a casting crane gantry hook with a detection auxiliary device, which can solve the problem that the existing casting crane gantry hook cannot be manually confirmed to be in place when lifting a steel ladle or an iron ladle, and is prone to falling from a high place.
[0004] In order to solve the above problems, the technical solution adopted by the utility model is: it includes a hook body, and a detection auxiliary device is arranged on the outer side of the hook body near the hook cavity, the detection auxiliary device has a transmitting device, a collision rod and a receiving alarm device, the transmitting device is connected to the collision rod, and the collision rod is arranged on the outer side near the hook cavity of the hook body.
[0005] In the above technical solution, a more specific technical solution may also be: an upper support rod and a lower support rod are respectively provided at both ends of the striker rod, and one end of the upper support rod and the lower support rod facing the launching device is provided with a spring.
[0006] Further: the transmitting device is provided with a battery.
[0007] Further: the receiving alarm device comprises an alarm device installed in the primary AC 220V circuit and a receiving device installed in the secondary AC 36V circuit.
[0008] Furthermore: a contactor KM is also arranged in the AC secondary 36V circuit, and a normally open contact KM1 of the contactor is arranged in the AC primary 220V circuit.
[0009] Further: the receiving alarm device is installed on the casting crane cab.
[0010] Due to the adoption of the above technical solution, the utility model has the following beneficial effects compared with the prior art:
[0011] Since a detection auxiliary device is arranged on the outside of the hook body close to the hook cavity, that is, a signal detection device is added, the safety confirmation method is expanded, the command lifting safety is improved, the lifting safety is guaranteed by an extra layer, the hook abnormality detection is realized, the lifting abnormality is discovered in time, the safety adjustment is made in time, and the confirmation lifting method is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the utility model.
[0013] Figure 2 The utility model is a circuit diagram of a receiving alarm device.
[0014] Figure 3 It is a state diagram of the utility model hanging ladle tank.
[0015] Figure 4 It is a structural diagram of ladle filling.
[0016] Serial number description:
[0017] Tank body 101, bag cover 102, ratchet 103, ear shaft 104, circular protection ring 105, gantry hook 106, hook body 1, detection auxiliary device 2, launching device 2.1, upper support rod 2.2, striker rod 2.3, lower support rod 2.4, alarm device 3, receiving device 4. DETAILED DESCRIPTION
[0018] The utility model is further described in detail below in conjunction with the accompanying drawings:
[0019] like Figure 1The utility model shown in the figure comprises a hook body 1, on the outer side of the hook body 1 near the hook cavity is provided with a detection auxiliary device 2, the detection auxiliary device comprises a launching device 2.1, a striking rod 2.3 and a receiving alarm device, the receiving alarm device can be installed in the cab of the casting crane, the launching device 2.1 is connected with the striking rod 2.3, the striking rod 2.3 is arranged on the outer side near the hook cavity of the hook body 1, when the hook body 1 is in the correct position for lifting the ladle tank or the iron ladle tank, the circular protective ring of the ladle tank or the iron ladle tank will push the striking rod outward, the striking rod moves toward the launching device and touches the launching device, the two ends of the striking rod 2.3 are respectively provided with an upper support rod 2.2 and a lower support rod 2.4, the ends of the upper support rod and the lower support rod facing the launching device are provided with a spring, when the hook body 1 leaves the ear axis of the ladle tank or the iron ladle tank, the circular protective ring no longer pushes the striking rod, the spring pushes the upper support rod 2.2 and the lower support rod back to the top; a battery is arranged on the launching device.
[0020] like Figure 2 As shown, the receiving alarm device has an alarm device 3 installed in the AC primary 220V circuit and a receiving device 4 installed in the AC secondary 36V circuit. A contactor KM and a fuse FU are also provided in the AC secondary 36V circuit. The normally open contact KM1 of the contactor KM is provided in the AC primary 220V circuit.
[0021] like Figure 3 As shown, when the driver uses the gantry hook of the casting crane to perform the ladle lifting operation, the driver operates the hook 1 of the gantry hook of the casting crane to descend to below the trunnion 104 of the ladle tank, and then stops the descending operation. At this time, the main trolley is started to make the front end of the hook 1 of the gantry hook of the casting crane stick to the trunnion 104 of the ladle tank. When the main trolley makes the hook 1 of the gantry hook of the casting crane fit in place with the side of the trunnion 104 of the ladle tank, the trunnion 104 of the ladle tank is still above the hook 1 detection auxiliary device 2. When the ground personnel issue a lifting command, the driver lifts the hook 1 to the hook cavity When the hook is at the bottom, the circular protective ring 105 contacts the striker 2.3 of the detection auxiliary device and pushes outward. The striker 2.3 drives its upper support rod 2.2 and lower support rod 2.4 to move outward. Under the action of the spring, the striker triggers the transmitting device 2.1. The transmitting device 2.1 sends a signal to the receiving and alarm device in the cab. After the receiving and alarm device receives the signal, the contactor KM is energized, and its normally open contact KM1 connects to the alarm device 3, thereby making the alarm work and sending an indication that the ear shaft has entered the bottom of the hook body hook cavity, indicating that the hook is normal and can be lifted normally. When the ear shaft is separated from the hook cavity, it is equivalent to the circular protective ring being separated from the striker, and the detection signal disappears, indicating that it is in the unhooking state. When the gantry hook is operating, if the gantry hook cavity is not hung in the ear shaft, but the circular protective ring is hung in the gantry hook cavity, since the gantry hook cavity is smaller than the circular protective ring, the protective ring cannot touch the detection auxiliary device, so no signal is detected, indicating that the ear shaft is not hung in, thereby playing a detection role.
Claims
1. A casting crane gantry hook with a detection auxiliary device, comprising a hook body, characterized in that: A detection auxiliary device is arranged on the outer side of the hook body near the hook cavity. The detection auxiliary device has a transmitting device, a striker and a receiving alarm device. The transmitting device is connected to the striker, and the striker is arranged on the outer side near the hook cavity of the hook body.
2. The casting crane gantry hook with a detection auxiliary device according to claim 1, characterized in that: An upper support rod and a lower support rod are respectively arranged at the two ends of the striker rod, and one end of the upper support rod and the lower support rod facing the launching device is provided with a spring.
3. The casting crane gantry hook with a detection auxiliary device according to claim 1 or 2, characterized in that: The transmitting device is provided with a storage battery.
4. The casting crane gantry hook with a detection auxiliary device according to claim 3, characterized in that: The receiving alarm device comprises an alarm device installed in an AC primary 220V circuit and a receiving device installed in an AC secondary 36V circuit.
5. The casting crane gantry hook with a detection auxiliary device according to claim 4, characterized in that: A contactor KM is also provided in the AC secondary 36V circuit, and a normally open contact KM1 of the contactor is provided in the AC primary 220V circuit.
6. The casting crane gantry hook with a detection auxiliary device according to claim 5, characterized in that: The receiving alarm device is installed on the casting crane cab.