Molten steel transfer crane control mechanism convenient to steer and adjust

Abstract

The utility model discloses a molten steel transfer crane control mechanism convenient to steer and adjust, which comprises a base, the base is fixedly connected with a machine body, the upper end of the base is fixedly provided with a connecting seat, the connecting seat is internally provided with a driving cavity, the driving cavity is of a penetrating structure, the driving cavity is internally provided with a rotating table, and the rotating table is provided with a rotating shaft. The rotating table and the driving cavity are rotationally limited, the upper end of the rotating table extends to the position above the connecting base, four balls are arranged at the positions, located at the upper end, the lower end and the side wall of the interior of the driving cavity, of the rotating table correspondingly, the balls are annularly distributed at equal intervals, and the balls are rotationally connected with the rotating table. And the crane is difficult to operate remotely.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a control mechanism of a molten steel transfer crane which is convenient for steering adjustment. Background Technique

[0002] A molten steel transfer crane is a heavy lifting equipment specially used for lifting and transferring high-temperature molten steel. Its control mechanism is an important part of the crane, responsible for controlling and monitoring various actions of the crane. The molten steel transfer crane mainly consists of an electrical control cabinet, an operation console, a cable winch, a remote control, a safety protection device and other structures. Among them, the control system of the molten steel transfer crane usually adopts electro-hydraulic combined control or full-electric control mode. Electro-hydraulic combined control realizes various actions of the crane by controlling the hydraulic system through the electrical system. Among them, it is an important feature of a control mechanism that is convenient for adjusting the steering head of the molten steel transfer crane.

[0003] For example, the Chinese patent "Crane Steering Drive Mechanism" with the publication number CN203333163U includes a crane trolley tire rack. The output end of the worm gear box is connected to the crane trolley tire rack to drive the crane trolley tire rack to rotate. The worm gear box includes a box body, a worm arranged in the box body and a worm gear box output shaft arranged in the box body; the worm is connected to the output shaft of the speed reducer; the worm gear box further includes: a worm gear meshing with the worm in the box body, the worm gear is sleeved on the worm gear box output shaft, and the worm gear box further includes: a worm end cover arranged on one side of the box body to fix the worm, and the worm gear box further includes: an upper bearing and a lower bearing respectively sleeved on the end and the tail of the worm gear box output shaft, and a slewing bearing is also sleeved on the tail of the worm gear box output shaft.

[0004] Although the above-mentioned prior art can realize the adjustment of the crane, in actual use, on the one hand, the rotation of the control mechanism of the crane is not convenient enough. When it is necessary to drive the crane to rotate, it is necessary to drive the worm and the worm gear to rotate by the motor, which increases the complexity of the control mechanism. On the other hand, it is difficult to perform remote operation on the crane. Usually, the crane needs an operator to control the crane in the operation room, resulting in that it is difficult for the operator to escape in time when the crane makes an operation error. Therefore, it does not meet the existing requirements. For this reason, we propose a control mechanism of a molten steel transfer crane which is convenient for steering adjustment. Content of the Utility Model

[0005] The purpose of the utility model is to provide a control mechanism of a molten steel transfer crane which is convenient for steering adjustment, so as to solve the problems that the rotation of the control mechanism of the crane is not convenient enough and it is difficult to perform remote operation on the crane as mentioned in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: A control mechanism for a molten steel transfer crane that is convenient for steering adjustment, including a base, the base is fixedly connected to the machine body, a connecting seat is fixedly arranged at the upper end of the base, a driving cavity is arranged inside the connecting seat, the driving cavity is a through structure, a rotating table is arranged inside the driving cavity, the rotating table is rotationally limited in the driving cavity, and the upper end of the rotating table extends above the connecting seat. Four balls are arranged on the upper and lower ends and the side wall of the rotating table inside the driving cavity, the balls are evenly distributed in a ring shape, and the balls are rotatably connected to the rotating table.

[0007] Preferably, a driving motor is fixedly arranged at the lower end of the connecting seat, and the output shaft of the driving motor extends into the driving cavity through the lower opening of the driving cavity and is fixedly connected to the rotating table.

[0008] Preferably, a fixing seat is fixedly arranged at the upper end of the rotating table outside the connecting seat, fixing frames are fixedly arranged at the upper ends of the fixing seats, a third fixing rod is fixedly arranged inside the fixing frames above, a lifting arm is fixedly sleeved outside the third fixing rod, the lifting arm is rotatably connected to the third fixing rod, and one end of the lifting arm extends outside the fixing frame.

[0009] Preferably, a first fixing rod is fixedly arranged below inside the fixing frame, a second fixing rod is arranged inside the lifting arm, and rotating seats are sleeved outside the first fixing rod and the second fixing rod, and the rotating seats are rotatably connected to the first fixing rod and the second fixing rod respectively.

[0010] Preferably, a hydraulic telescopic device is fixedly arranged between the rotating seats, a rubber telescopic sleeve is fixedly arranged between the fixed end of the hydraulic telescopic device and the rotating seat on the second fixing rod, and the rubber telescopic sleeve wraps around the outside of the telescopic end of the hydraulic telescopic device.

[0011] Preferably, a multi-way electromagnetic reversing valve is fixedly arranged outside the fixed end of the hydraulic telescopic device, the multi-way electromagnetic reversing valve is communicated with the driving mechanism of the hydraulic telescopic device, an electrical component is fixedly arranged at the upper end of the multi-way electromagnetic reversing valve, the output end of the electrical component is electrically connected to the multi-way electromagnetic reversing valve, and the input end of the electrical component is electrically connected to a remote control.

[0012] Preferably, a lifting head is fixedly arranged on one side of the lifting arm outside the fixing frame.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. The utility model can make the fixed frame rotate flexibly through the rotating table and the steel balls. When the crane needs to rotate, the driving motor is turned on at this time, so that the output shaft of the driving motor drives the rotating table to rotate inside the driving cavity. At the same time, the steel balls on the rotating table rotate in cooperation with the inner wall of the driving cavity, and the fixed seat fixedly connected to the rotating table rotates together with the fixed frame until the boom is rotated to a suitable position. Then subsequent operations are carried out. This simplifies the connection structure in the driving mechanism, and at the same time, the arranged steel balls can improve the rotation stability of the rotating table.

[0015] 2. The utility model can remotely adjust the boom through the multi-way electromagnetic reversing valve and the electrical components. When remotely operating the hydraulic telescopic device, the operator adjusts the hydraulic telescopic device through an external remote controller at this time. When pressing the remote controller, the remote controller sends a signal to the electrical components. At this time, the received electrical components send a signal to the multi-way electromagnetic reversing valve, causing the valve state on the multi-way electromagnetic reversing valve to change, so that the oil inlet pipeline of the hydraulic telescopic device changes, completing the remote operation of lifting the boom, thereby improving the safety of the crane.

[0016] 3. The utility model is provided with a rubber expansion sleeve, which can provide protection for the telescopic end of the hydraulic telescopic device. When using the crane, the lifting of the boom is adjusted by the extension or contraction of the telescopic end of the hydraulic telescopic device. At the same time, impurities in the air will adhere to the outside of the telescopic end of the hydraulic telescopic device, and the impurities will enter the inside of the hydraulic telescopic device through the contraction of the telescopic end. At this time, the impurities will damage the devices inside the hydraulic telescopic device. The arranged rubber expansion sleeve expands and contracts together when the telescopic end expands and contracts, avoiding impurities in the air from adhering to the outside of the telescopic end, thereby extending the service life of the hydraulic telescopic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view of the internal structure of the utility model;

[0018] Figure 2 is the side view of the internal structure of the utility model;

[0019] Figure 3 is the three-dimensional view of the driving structure of the utility model;

[0020] Figure 4 is of the utility model Figure 1 partial enlarged view of area A in.

[0021] In the figure: 1, base; 2, connecting seat; 3, driving motor; 4, driving cavity; 5, rotating table; 6, fixed seat; 7, fixing frame; 8, lifting arm; 9, lifting head; 10, first fixing rod; 11, rotating seat; 12, hydraulic telescopic device; 13, multi-way electromagnetic reversing valve; 14, electrical component; 15, rubber telescopic sleeve; 16, second fixing rod; 17, third fixing rod; 18, ball. Specific implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] Please refer to Figures 1-4 , an embodiment provided by the present invention: a control mechanism for a molten steel transfer crane that is convenient for steering adjustment, including a base 1, the base 1 is fixedly connected to the machine body, a connecting seat 2 is fixedly arranged at the upper end of the base 1, a driving cavity 4 is arranged inside the connecting seat 2, the driving cavity 4 is a through structure, a rotating table 5 is arranged inside the driving cavity 4, the rotating table 5 is rotationally limited with the driving cavity 4, and the upper end of the rotating table 5 extends above the connecting seat 2. Four balls 18 are arranged on the upper and lower ends and the side wall of the rotating table 5 located inside the driving cavity 4. The balls 18 are evenly distributed in a ring shape, and the balls 18 are rotatably connected to the rotating table 5.

[0024] During use, when the crane needs to rotate, at this time, the driving motor 3 is turned on, so that the output shaft of the driving motor 3 drives the rotating table 5 to rotate inside the driving cavity 4. At the same time, the steel balls 18 on the rotating table 5 rotate in cooperation with the inner wall of the driving cavity 4, and the fixed seat 6 fixedly connected to the rotating table 5 rotates together with the fixing frame 7 until the lifting arm 8 is rotated to a suitable position, and then subsequent operations are carried out.

[0025] Please refer to Figure 1 and Figure 3 , a driving motor 3 is fixedly arranged at the lower end of the connecting seat 2. The output shaft of the driving motor 3 extends into the driving cavity 4 through the lower opening of the driving cavity 4 and is fixedly connected to the rotating table 5, which is convenient for driving the rotating table 5 to rotate through the driving motor 3.

[0026] Please refer to Figure 1 and Figure 2 , a fixed seat 6 is fixedly arranged at the upper end of the rotating table 5 located outside the connecting seat 2. Fixing frames 7 are fixedly arranged at the upper ends of the fixed seats 6. A third fixing rod 17 is fixedly arranged inside the fixing frames 7 above. The outside of the third fixing rod 17 is sleeved and fixedly provided with a lifting arm 8. The lifting arm 8 is rotatably connected to the third fixing rod 17, and one end of the lifting arm 8 extends outside the fixing frame 7, which is convenient for connecting the fixing frame 7 and the lifting head 9 through the lifting arm 8.

[0027] Please refer to Figure 1 and Figure 2 As shown, a first fixing rod 10 is fixedly arranged below the interior of the fixing frame 7, a second fixing rod 16 is arranged inside the boom 8, and rotating seats 11 are sleeved outside the first fixing rod 10 and the second fixing rod 16. The rotating seats 11 are respectively rotatably connected to the first fixing rod 10 and the second fixing rod 16, which is convenient for fixedly installing the hydraulic telescopic device 12 through the rotating seats 11.

[0028] Please refer to Figure 1 and Figure 2 As shown, a hydraulic telescopic device 12 is fixedly arranged between the rotating seats 11. A rubber telescopic sleeve 15 is fixedly arranged between the fixed end of the hydraulic telescopic device 12 and the rotating seat 11 on the second fixing rod 16, and the rubber telescopic sleeve 15 wraps around the outside of the telescopic end of the hydraulic telescopic device 12, which is convenient for avoiding impurities in the air from adhering to the outside of the telescopic end of the hydraulic telescopic device 12 through the rubber telescopic sleeve 15.

[0029] Please refer to Figure 1 As shown, a multi-way electromagnetic reversing valve 13 is fixedly arranged outside the fixed end of the hydraulic telescopic device 12. The multi-way electromagnetic reversing valve 13 is communicated with the driving mechanism of the hydraulic telescopic device 12. An electrical component 14 is fixedly arranged at the upper end of the multi-way electromagnetic reversing valve 13. The output end of the electrical component 14 is electrically connected to the multi-way electromagnetic reversing valve 13, and the input end of the electrical component 14 is electrically connected to the remote controller, which is convenient for remotely adjusting the multi-way electromagnetic reversing valve 13 through the electrical component 14.

[0030] Please refer to Figure 1 As shown, a lifting head 9 is fixedly arranged on one side of the boom 8 outside the fixing frame 7, which is convenient for carrying out lifting operations through the lifting head 9.

[0031] Working principle: When remotely operating the hydraulic telescopic device 12, at this time, the operator adjusts the hydraulic telescopic device 12 through an external remote controller. When pressing the remote controller, the remote controller sends a signal to the electrical component 14. At this time, the received electrical component 14 sends a signal to the multi-way electromagnetic reversing valve 13, changing the valve state on the multi-way electromagnetic reversing valve 13, so that the oil inlet pipeline of the hydraulic telescopic device 12 is changed, completing the remote operation of lifting the boom 8.

[0032] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A control mechanism for a molten steel transfer crane that facilitates steering adjustment, including a base (1), the base (1) being fixedly connected to the body, characterized in that: A connecting seat (2) is fixedly arranged at the upper end of the base (1). A driving cavity (4) is arranged inside the connecting seat (2). The driving cavity (4) is a through structure. A rotating table (5) is arranged inside the driving cavity (4). The rotating table (5) is rotationally limited with the driving cavity (4), and the upper end of the rotating table (5) extends above the connecting seat (2). Four balls (18) are arranged on the upper and lower ends and the side wall of the rotating table (5) inside the driving cavity (4). The balls (18) are annularly and equidistantly distributed, and the balls (18) are rotationally connected with the rotating table (5).

2. The control mechanism of the molten steel transfer crane facilitating steering adjustment according to claim 1, wherein: A driving motor (3) is fixedly arranged at the lower end of the connecting seat (2). The output shaft of the driving motor (3) extends into the driving cavity (4) through the lower opening of the driving cavity (4) and is fixedly connected with the rotating table (5).

3. The control mechanism of a molten steel transfer crane facilitating steering adjustment according to claim 2, characterized in that: A fixing seat (6) is fixedly arranged at the upper end of the rotating table (5) outside the connecting seat (2). Fixing frames (7) are fixedly arranged at the upper ends of the fixing seats (6). A third fixing rod (17) is fixedly arranged inside the fixing frames (7) above. An outer sleeve of the third fixing rod (17) is fixedly provided with a lifting arm (8). The lifting arm (8) is rotationally connected with the third fixing rod (17), and one end of the lifting arm (8) extends outside the fixing frame (7).

4. The control mechanism of the molten steel transfer crane facilitating steering adjustment according to claim 3, characterized in that: A first fixing rod (10) is fixedly arranged below inside the fixing frame (7). A second fixing rod (16) is arranged inside the lifting arm (8). Rotating seats (11) are sleeved on the outer sleeves of the first fixing rod (10) and the second fixing rod (16). The rotating seats (11) are rotationally connected with the first fixing rod (10) and the second fixing rod (16) respectively.

5. The control mechanism of a molten steel transfer crane facilitating steering adjustment according to claim 4, characterized in that: A hydraulic telescopic device (12) is fixedly arranged between the rotating seats (11). A rubber telescopic sleeve (15) is fixedly arranged between the fixed end of the hydraulic telescopic device (12) and the rotating seat (11) on the second fixing rod (16), and the rubber telescopic sleeve (15) wraps around the outer sleeve of the telescopic end of the hydraulic telescopic device (12).

6. The control mechanism of a molten steel transfer crane facilitating steering adjustment according to claim 5, characterized in that: A multi-way electromagnetic reversing valve (13) is fixedly arranged on the outer sleeve of the fixed end of the hydraulic telescopic device (12). The multi-way electromagnetic reversing valve (13) is communicated with the driving mechanism of the hydraulic telescopic device (12). An electrical component (14) is fixedly arranged at the upper end of the multi-way electromagnetic reversing valve (13). The output end of the electrical component (14) is electrically connected with the multi-way electromagnetic reversing valve (13), and the input end of the electrical component (14) is electrically connected with a remote controller.

7. A control mechanism for a molten steel transfer crane that is convenient for steering adjustment according to claim 6, characterized in that: A lifting head (9) is fixedly arranged on one side of the lifting arm (8) outside the fixing frame (7).

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