Screw-down transmission device of cogging mill

Abstract

The utility model relates to a blooming mill screw-down transmission device which comprises a gear box, a clutch, a first motor and a second motor, the gear box comprises a first input shaft A, a second input shaft B and an output shaft C, the first motor is connected with the first input shaft A of the gear box through a brake, and the second motor is connected with the second input shaft B of the gear box through a coupler. When only the first motor works, the clutch is in a disengaged state, the first motor transmits power to a first input shaft A of the gear box through the brake and then transmits the power to an output shaft C of the gear box through the first input shaft A, and when only the second motor works, the clutch is in a disengaged state. When the clutch is in a closed state, the second motor transmits power to the output shaft C through the second input shaft B of the gear box and the gear pair. The two motors are used for roughly adjusting the rolling reduction and finely adjusting the rolling reduction correspondingly, speed adjustment is higher, and precision is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgical equipment, and in particular relates to a pressing transmission device of a cogging machine. Background Art

[0002] Large steel ingots usually cannot be directly rolled into steel of the required size, but are first rolled into billets (opening), and then the billets are rolled into finished products. The heavy rolling mill used to process steel ingots into billets is called a opening mill.

[0003] The pressing transmission device of the blanking machine mainly drives the gear box through the motor. The output end of the gear box is connected to the gear shaft. The transmission direction is changed through gear transmission, and the screw nut connected to the gear shaft is used to drive the pressing roller to move, thereby adjusting the pressing amount.

[0004] Currently, the reduction drive mechanism of the cogging machine is arranged on a large platform, with its motor and gearbox dispersed. This occupies a large area and has high investment costs. Furthermore, the reduction can only be roughly adjusted. Therefore, a more compact mechanism is needed that can not only roughly adjust the reduction, but also fine-tune it. Utility Model Content

[0005]

Technical Issues

[0006] In view of the defects and shortcomings of the existing technology, the utility model designs a blanking machine pressing transmission device. This structure can not only meet the blanking machine's large range of pressing amount adjustment, but also can be quickly adjusted online, thereby speeding up the blanking machine's reciprocating rolling rhythm.

[0007]

Technical solution

[0008] A pressing transmission device for a blanking machine includes a gear box, a clutch, a brake, a first motor, a second motor and a coupling.

[0009] The gearbox includes a first input shaft A and a second input shaft B spaced apart on one side of the gearbox, and an output shaft C on the opposite side of the gearbox.

[0010] The first motor is connected to the first input shaft A of the gear box, the second motor is connected to the second input shaft B of the gear box, and the output shaft C of the gear box is connected to the gear shaft of the pressing device.

[0011] When only the first motor is working, the clutch is in the disengaged state, which controls the gear on the first input shaft A to disconnect from the gear pair that transmits power through the gear meshing on the second input shaft B. The first motor transmits power to the output shaft C through the first input shaft A.

[0012] When only the second motor is working, the clutch is in the closed state, which controls the gear on the first input shaft A to establish a connection with the gear pair that transmits power through the meshing of the gear on the second input shaft B. The second motor transmits power to the output shaft C through the second input shaft B of the gearbox and the gear pair.

[0013] Optionally, a fifth gear D5 is fixedly connected to the first input shaft A, and a third gear D3 and a fourth gear D4 are mounted on the first input shaft A through bearings. The first gear D1 is fixedly connected to the second input shaft B, and the third gear D3 is meshed with the first gear D1 through an intermediate transition gear D2.

[0014] When the clutch is in the disengaged state, the first motor drives the first input shaft A through the brake, thereby directly driving the output shaft C to rotate; when the clutch is in the engaged state, the second motor drives the second input shaft B to rotate through the coupling, and drives the third gear D3 to rotate through the gear transmission. The clutch controls the fourth gear D4 and the fifth gear D5 to be connected, thereby transmitting power to the fifth gear D5 on the first input shaft A, thereby driving the first input shaft A to rotate, thereby driving the output shaft C to rotate.

[0015] Optionally, the output shaft C is used to drive the gear shaft of the blanking machine to adjust the pressing amount.

[0016] Optionally, the rotational speed of the first motor is higher than the rotational speed of the second motor.

[0017] Optionally, a transmission base is further provided, and the transmission base is respectively connected to the first motor, the second motor and the gear box by bolts.

[0018] Optionally, the transmission base is made of welded steel plates.

[0019] Optionally, the clutch state is controlled by a hydraulic cylinder.

[0020] Optionally, the blanking machine is of archless type.

[0021] Optionally, the first input shaft A and the output shaft C are the same shaft.

[0022] Beneficial effects

[0023] Compared with the prior art, the pressing transmission device of the blanking machine of the present application has the following beneficial effects:

[0024] By connecting the first and second motors to the gearbox, the two motors can be used to independently adjust the roughing and fine-tuning of the reduction, enabling faster adjustment speeds and higher precision. This allows the slab mill to achieve efficient back-and-forth rolling while ensuring that the rolling pass requirements of each process pass are met, resulting in considerable economic benefits. Furthermore, the compact structure, minimal footprint, minimal equipment wear, and low maintenance costs make it highly attractive in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a front view of an embodiment of the utility model;

[0026] Figure 2 A top view of an embodiment of the present utility model;

[0027] Figure 3 This is a schematic diagram of the interior of a gearbox according to an embodiment of the present invention.

[0028] In the figure: 1. Transmission base; 2. Gearbox; 3. Clutch; 4. Brake; 5. First motor; 6. Second motor; 7. Coupling. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0030] Please refer to Figure 1 and Figure 2 The pressing transmission device of the blanking machine in this embodiment includes a transmission base 1, a gear box 2, a clutch 3, a brake 4, a first motor 5, a second motor 6 and a coupling 7.

[0031] The transmission base 1 as a supporting structure can be welded with steel plates to support the gear box 2, the first motor 5 and the second motor 6. Lifting lugs can be provided on the transmission base 1 so that the entire transmission device of the blanking machine can be lifted and moved. Compared with the previous scattered installation on a large platform, its layout is reasonable and the structure is more compact.

[0032] The transmission base 1 is connected to the first motor, the second motor, and the gearbox by bolts, thereby fixing the first motor, the second motor, and the gearbox to the transmission base 1. By fixing the first motor 5, the second motor 6, and the gearbox 2 to the transmission base 1, a high degree of integration can be achieved and the floor space can be reduced.

[0033] The gearbox 2 has two input shafts and one output shaft, specifically, a first input shaft A and a second input shaft B spaced apart on one side of the gearbox, and an output shaft C on the opposite side of the gearbox. For example, please refer to Figure 3 The second input shaft B establishes a transmission relationship with the first input shaft A through a series of gears D1 to D5. The first input shaft A and the output shaft C can be the same shaft, or they can be different shafts, and the transmission relationship is also established through gear transmission. The specific internal structure of the gearbox is not described in detail here. The following explanation uses the first input shaft A and the output shaft C as the same shaft as an example.

[0034] The first motor 5 is connected to the first input shaft A of the gearbox 2 via the brake 4. A fifth gear D5 is fixedly mounted on the first input shaft A. The fifth gear D5 can be integrally formed with the first input shaft A or fixedly mounted on the first input shaft A via a key connection. The second motor 6 is connected to the second input shaft B of the gearbox via a coupling 7. The first gear D1 is fixedly connected to the second input shaft B. The third gear D3 and the fourth gear D4 are also mounted on the first input shaft A via bearings. The third gear D3 and the fourth gear D4 are mounted on the first input shaft A via a single bearing, meaning that the third gear D3 and the fourth gear D4 can operate together. The third gear D3 is connected to the first gear D1 via an intermediate transition gear D2. The output shaft C of the gearbox is connected to the gear shaft of the press-down device (not shown) via another coupling.

[0035] Furthermore, a clutch 3 is mounted on the gearbox 2, controlled by a hydraulic cylinder to facilitate use when matching different motors. Specifically, when the first motor 5 is operating, the clutch 3 is in the disengaged state, controlling the gear on the first input shaft A to disconnect from the gear pair that transmits power through the meshing gear on the second input shaft B. When the second motor 6 is operating, the clutch 3 is in the engaged state, controlling the gear on the first input shaft A to connect to the gear pair that transmits power through the meshing gear on the second input shaft B.

[0036] When the clutch 3 is in the disengaged state, the second motor 6 does not work, and the first motor 5 drives the first input shaft A through the brake 4. Since the third gear D3 and the fourth gear D4 are connected to the first input shaft A through bearings, the third gear D3 and the fourth gear D4 do not rotate during the rotation of the first input shaft A. The first input shaft A directly drives the output shaft C. The first input shaft A can be fixedly connected to the input shaft C, for example, they can be the same shaft.

[0037] When the clutch 3 is in the closed state, the first motor 5 does not work, and the second motor 6 controls the first gear D1 on the second input shaft B to establish a connection with the gear pair that transmits power through the gear meshing on the second input shaft B. For example, please refer to Figure 3 , the first motor 5 is not working, the second motor 6 drives the second input shaft B through the coupling 7, and then drives the first gear D1 on the second input shaft B, and then drives the intermediate transition gear D2 paired with it, and then drives the third gear D3 and the fourth gear D4 to move. At this time, since the first input shaft A is connected to the third gear D3 and the fourth gear D4 by bearings, the first input shaft A will not be driven to rotate by the third gear D3 and the fourth gear D4, but the clutch 3 is in the engaged state. The clutch 3 controls the fourth gear D4 and the fifth gear D5 to be connected, thereby transmitting power to the fifth gear D5 on the first input shaft A, and the fifth gear D5 is directly fixed on the first input shaft A, so that the fifth gear D5 drives the first input shaft A to rotate, thereby driving the output shaft C to rotate.

[0038] When only the first motor 5 is operating, the clutch 3 is in the disengaged state, and the fourth gear D4 and the fifth gear D5 are disconnected. The first motor 5 transmits power to the first input shaft A through the brake 4, and then transmits power to the gearbox output shaft C through the first input shaft A. The output shaft C drives the gear shaft of the cogging machine to rotate, and the transmission direction is changed by the gear transmission. The screw nut connected to the gear shaft is used to drive the pressure roller to move, thereby adjusting the pressure reduction. The first motor 5 has a relatively high speed and is used for coarse adjustment of the pressure reduction of the cogging machine.

[0039] When only the second motor 6 is working, the clutch 3 is in a closed state, and the second motor 6 is connected to the second input shaft B. The second motor 6 transmits power to the second input shaft B through the coupling 7, and then to the gearbox output shaft C, as described above, to fine-tune the amount of pressure reduction. The second motor 6 has a lower speed and is used to fine-tune the amount of pressure reduction of the blanking machine. It should be noted that although the output shaft of the first motor 5 has a transmission relationship with the second input shaft B at this time, since the first motor 5 is not working, its output shaft can follow the movement of the second input shaft B.

[0040] Compared to previous slab mill reduction transmission devices, the new slab mill reduction transmission device disclosed in this utility model possesses unique advantages. It not only accommodates a wide range of slab mill reduction requirements but also allows for rapid online adjustment, thereby accelerating the slab mill's reciprocating rolling rhythm. This new device boasts a novel structure, comprehensive functionality, high structural strength, and reliable operation, achieving efficient reciprocating rolling while ensuring that the required rolling pass profiles are met throughout the process. Furthermore, its compact structure minimizes floor space, reduces equipment wear, and reduces maintenance costs, making it highly marketable.

[0041] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations shall fall within the scope of protection of the claims of the present invention.

Claims

1. A pressing transmission device for a blanking machine, characterized in that: including a gearbox, a clutch, a first motor and a second motor, The gearbox includes a first input shaft (A) and a second input shaft (B) spaced apart on one side of the gearbox, and an output shaft (C) on the opposite side of the gearbox, The first motor is connected to the first input shaft (A) of the gear box, the second motor is connected to the second input shaft (B) of the gear box, and the output shaft (C) of the gear box is connected to the gear shaft of the pressing device. When only the first motor is working, the clutch is in the disengaged state, which controls the gear on the first input shaft (A) to disconnect from the gear pair that transmits power through the gear meshing on the second input shaft (B). The first motor transmits power to the output shaft (C) through the first input shaft (A). When only the second motor is operating, the clutch is in the engaged state, controlling the gear on the first input shaft (A) to establish a connection with the gear pair that transmits power through the meshing of the gear on the second input shaft (B). The second motor transmits power to the output shaft (C) through the second input shaft (B) and the gear pair of the gearbox.

2. The pressing transmission device of the blanking machine according to claim 1 is characterized in that: A fifth gear (D5) is fixedly connected to the first input shaft (A), and a third gear (D3) and a fourth gear (D4) are mounted on the first input shaft (A) via bearings. A first gear (D1) is fixedly connected to the second input shaft (B), and the third gear (D3) is meshed with the first gear (D1) via an intermediate transition gear (D2). When the clutch is in the disengaged state, the first motor drives the first input shaft (A) through the brake, thereby directly driving the output shaft (C) to rotate; when the clutch is in the engaged state, the second motor drives the second input shaft (B) to rotate through the coupling, and drives the third gear (D3) to rotate through the gear transmission. The clutch controls the fourth gear (D4) and the fifth gear (D5) to be connected, thereby transmitting power to the fifth gear (D5) on the first input shaft (A), thereby driving the first input shaft (A) to rotate, thereby driving the output shaft (C) to rotate.

3. The pressing transmission device of the blanking machine according to claim 1 is characterized in that: The output shaft (C) drives the gear shaft of the blanking machine to adjust the pressing amount.

4. The pressing transmission device of the blanking machine according to claim 1 is characterized in that: The rotation speed of the first motor is higher than that of the second motor.

5. The pressing transmission device of the blanking machine according to claim 1 is characterized in that: It also has a transmission base, which is respectively connected to the first motor, the second motor and the gear box through bolts.

6. The pressing transmission device of the blanking machine according to claim 5, characterized in that: The transmission base is made of welded steel plates.

7. The pressing transmission device of the blanking machine according to claim 1 is characterized in that: The clutch is controlled by a hydraulic cylinder.

8. The pressing transmission device of the blanking machine according to claim 1 is characterized in that: The blank opening machine is a non-archway type.

9. The pressing transmission device of the blanking machine according to claim 1, characterized in that: The first input shaft (A) and the output shaft (C) are the same shaft.

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