Double support back flushing device for rolling mill transmission shaft

Abstract

The utility model discloses a kind of rolling mill plant transmission shaft double support backflush devices.The utility model includes: the installation component being arranged between two groups of bearing seats, the power component is provided on the installation component upper end, the mobile cleaning component is provided on the installation component upper end, and mobile cleaning component is provided with two groups, the mobile cleaning component includes toothed plate, support plate, cross plate, baffle, vertical plate, annular air knife, screw rod and extrusion plate, the toothed plate is arranged on installation component upper end, the support plate is fixedly connected with toothed plate, the cross plate is fixedly connected on support plate upper end, the baffle is fixedly connected on cross plate upper end, mobile cleaning component can be driven left and right by power component, annular air knife can be moved along coupling and transmission shaft body at this time, annular air knife external high-pressure gas supply equipment can be used to clean the surface of coupling and transmission shaft body at this time, so that iron oxide scale and other impurities can be prevented from accumulating in transmission shaft body inside.

Description

Technical Field

[0001] This utility model relates to the field of steel rolling equipment technology, specifically to a double-support backflushing device for the transmission shaft of a steel rolling mill. Background Technology

[0002] In the steel rolling process, the drive shaft, as a key component connecting the main motor of the rolling mill and the rolls, needs to withstand enormous torque and radial force. Its operational stability directly affects the quality of the rolled material and production efficiency. The drive shaft is usually supported by bearing housings. However, the steel rolling environment is extremely harsh. A large amount of high-temperature iron oxide scale (temperatures can reach 600-800℃), cooling water (containing emulsions and oil), and dust continuously corrode the bearing housings, leading to bearing wear, corrosion, and even jamming. According to statistics, about 30% of rolling mill downtime failures are related to the failure of the drive shaft support system.

[0003] However, traditional drive shaft support devices have many shortcomings. For example, traditional devices lack an effective impurity cleaning mechanism. Invading iron oxide scale accumulates in the bearing housing and drive shaft, requiring periodic shutdowns for disassembly and cleaning. Each maintenance takes 4-6 hours, seriously affecting production continuity. Utility Model Content

[0004] The purpose of this invention is to provide a double-support back-blowing device for the transmission shaft of a steel rolling mill, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-support backflushing device for a steel rolling mill drive shaft, comprising: an installation assembly disposed between two sets of bearing seats, a power assembly disposed at the upper end of the installation assembly, and a movable cleaning assembly disposed at the upper end of the installation assembly, wherein there are two sets of movable cleaning assemblies, each movable cleaning assembly comprising a toothed plate, a support plate, a horizontal plate, a baffle, a vertical plate, an annular air knife, a lead screw, and a pressing plate, wherein the toothed plate is disposed at the upper end of the installation assembly, the support plate is fixedly connected to the toothed plate, the horizontal plate is fixedly connected to the upper end of the support plate, the baffle is fixedly connected to the upper end of the horizontal plate, the vertical plate is fixedly connected to the upper end of the horizontal plate, the lead screw is threadedly connected to the vertical plate, the pressing plate is fixedly connected to the lead screw, and the annular air knife is fixed to the upper end of the horizontal plate by the pressing plate and the baffle.

[0006] Furthermore, the mounting assembly includes a base plate, a fixing plate, and screws. The base plate is disposed between two sets of bearing seats, and the fixing plate is fixedly connected to the upper end of the base plate. There are two sets of fixing plates. The screws are threadedly connected to the bearing seats, and the fixing plate is fixedly connected to the bearing seats by the screws.

[0007] Furthermore, the mounting assembly also includes eight sets of limiting rollers, which are rotatably connected to the upper end of the base plate.

[0008] Furthermore, the power assembly includes a motor, a gear, and a limiting bridge. The motor is fixedly connected to the bottom of the base plate, the gear is rotatably connected to the upper end of the base plate, the gear is fixedly connected to the output end of the motor, the limiting bridge is fixedly connected to the upper end of the base plate, and the gear meshes with a gear plate.

[0009] Furthermore, a coupling is rotatably connected to the side of the bearing housing near the mounting assembly. The coupling is rotatably connected to the bearing housing via a roller bearing, and a transmission shaft body is provided between the two sets of couplings.

[0010] Furthermore, a protective component is provided on the side of the bearing housing near the coupling.

[0011] Furthermore, the protective assembly includes an upper shell, a lower shell, side plates, and bolts. Side plates are fixedly connected to both the left and right sides of the upper shell and the lower shell, and the bolts are threadedly connected to the side plates.

[0012] Furthermore, the protective assembly also includes mounting rings and connectors. Two sets of mounting rings are provided, and the two sets of mounting rings are fixedly connected to the upper shell and the lower shell respectively. The connector is fixedly connected to the upper end of the upper shell.

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

[0014] This invention enables the mobile cleaning component to move left and right via a power component. This allows the annular air knife to move along the coupling and drive shaft body. At this time, the surface of the coupling and drive shaft body can be cleaned by connecting a high-pressure air supply device to the annular air knife, thereby preventing impurities such as iron oxide scale from accumulating inside the drive shaft body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front view structure in one embodiment of the present invention;

[0016] Figure 2 for Figure 1 A schematic diagram of the component structure between the two sets of bearing housings;

[0017] Figure 3 for Figure 1 A schematic diagram of the structure of the China Mobile cleaning component;

[0018] Figure 4 for Figure 1 A schematic diagram of the structure of the middle protective component.

[0019] Reference numerals: 1. Bearing housing; 2. Coupling; 3. Roller bearing; 4. Drive shaft body; 5. Mounting assembly; 51. Base plate; 52. Fixing plate; 53. Screw; 54. Limiting roller; 6. Power assembly; 61. Motor; 62. Gear; 63. Limiting bridge; 7. Moving cleaning assembly; 71. Toothed plate; 72. Support plate; 73. Horizontal plate; 74. Baffle; 75. Vertical plate; 76. Annular air knife; 77. Lead screw; 78. Extrusion plate; 8. Protective assembly; 81. Upper shell; 82. Lower shell; 83. Side plate; 84. Bolt; 85. Mounting ring; 86. Connector. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please refer to the following: Figures 1-4 ,in Figure 1 This is a schematic diagram of the front view structure in one embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the component structure between the two sets of bearing housings; Figure 3 for Figure 1 A schematic diagram of the structure of the China Mobile cleaning component; Figure 4 for Figure 1 A schematic diagram of the structure of the protective assembly, a double-support backflushing device for a steel rolling mill drive shaft, includes: an installation assembly 5 disposed between two sets of bearing seats 1, a power assembly 6 disposed at the upper end of the installation assembly 5, and a movable cleaning assembly 7 disposed at the upper end of the installation assembly 5, wherein two sets of movable cleaning assemblies 7 are provided. The movable cleaning assembly 7 includes a toothed plate 71, a support plate 72, a horizontal plate 73, a baffle 74, a vertical plate 75, an annular air knife 76, a lead screw 77, and an extrusion plate 78. The toothed plate 71 is disposed at the upper end of the installation assembly 5, and the support plate 72 and the toothed plate 76 are connected. 1. Fixed connection: Horizontal plate 73 is fixedly connected to the upper end of support plate 72, baffle 74 is fixedly connected to the upper end of horizontal plate 73, vertical plate 75 is fixedly connected to the upper end of horizontal plate 73, screw 77 is threadedly connected to vertical plate 75, extrusion plate 78 is fixedly connected to screw 77, annular air knife 76 is fixed to the upper end of horizontal plate 73 through extrusion plate 78 and baffle 74, toothed plate 71 is slidably connected to the upper end of base plate 51, annular air knife 76 is sleeved on the circumferential side of coupling 2 and drive shaft body 4, and annular air knife 76 delivers high-pressure gas through external gas compression equipment.

[0022] The mounting assembly 5 includes a base plate 51, a fixing plate 52, and screws 53. The base plate 51 is disposed between two sets of bearing seats 1. The fixing plate 52 is fixedly connected to the upper end of the base plate 51, and there are two sets of fixing plates 52. The screws 53 are threadedly connected to the bearing seats 1. The fixing plate 52 is fixedly connected to the bearing seats 1 by the screws 53.

[0023] Mounting assembly 5 also includes limiting rollers 54, which are provided in eight sets. The limiting rollers 54 are rotatably connected to the upper end of the base plate 51. The limiting rollers 54 can limit the toothed plate 71, so that the toothed plate 71 can move in a stable linear motion.

[0024] The power assembly 6 includes a motor 61, a gear 62, and a limiting bridge 63. The motor 61 is fixedly connected to the bottom of the base plate 51, the gear 62 is rotatably connected to the upper end of the base plate 51, the gear 62 is fixedly connected to the output end of the motor 61, the limiting bridge 63 is fixedly connected to the upper end of the base plate 51, and the gear 62 meshes with the toothed plate 71.

[0025] A coupling 2 is rotatably connected to the side of the bearing housing 1 near the mounting assembly 5. The coupling 2 is rotatably connected to the bearing housing 1 through a roller bearing 3. A transmission shaft body 4 is provided between the two sets of couplings 2.

[0026] A protective component 8 is provided on the side of the bearing housing 1 near the coupling 2.

[0027] The protective assembly 8 includes an upper shell 81, a lower shell 82, side plates 83, and bolts 84. Side plates 83 are fixedly connected to both the left and right sides of the upper shell 81 and the lower shell 82. Bolts 84 are threadedly connected to the side plates 83. The upper shell 81 and the lower shell 82 can be fixed together by the cooperation of the side plates 83 and bolts 84.

[0028] The protective assembly 8 also includes a mounting ring 85 and a connector 86. There are two sets of mounting rings 85, which are fixedly connected to the upper shell 81 and the lower shell 82 respectively. The connector 86 is fixedly connected to the upper end of the upper shell 81. The mounting rings 85 are fixedly connected to the bearing seat 1 by screws. At this time, the upper shell 81 and the lower shell 82 can be fitted onto the sides of the coupling 2. There is a two-millimeter gap between the inner wall of the upper shell 81 and the lower shell 82 away from the mounting ring 85 and the coupling 2. High-pressure gas can be delivered to the interior of the upper shell 81 and the lower shell 82 through the external gas compression device connected to the connector 86.

[0029] In summary, the double-support back-blowing device for the transmission shaft of a steel rolling mill provided by this utility model allows for the following operation: when the annular air knife 76 is connected to a high-pressure gas conveying device, the inner ring of the annular air knife 76 blows air towards the circumference of the coupling 2. At this time, the high-pressure gas blown out by the annular air knife 76 cleans the circumference of the coupling 2. The gear 62 driven by the motor 61 can rotate, allowing the gear plate 71 to slide on the upper end of the base plate 51. This allows the two sets of annular air knives 76 to move along the coupling 2 and the transmission shaft body 4. The annular air knife 76 can blow air onto the circumference of the coupling 2 and the transmission shaft body 4, thereby cleaning impurities on the surface of the coupling 2 and the transmission shaft body 4. By cleaning impurities from the coupling 2 and the transmission shaft body 4 in a timely manner, impurities can be prevented from entering the roller bearing 3 and the interior of the transmission shaft body 4.

[0030] The upper shell 81 and lower shell 82 protect the roller bearing 3, preventing impurities from entering the roller bearing 3 and affecting its normal operation. High-pressure gas is supplied to the upper shell 81 and lower shell 82 through an external high-pressure gas device, allowing the high-pressure gas to be blown out from the gap between the upper shell 81 and lower shell 82 and the coupling 2. This cleans the surface of the coupling 2 while preventing impurities from entering the upper shell 81 and lower shell 82, thus further preventing impurities from entering the roller bearing 3 while cleaning the surface of the coupling 2.

Claims

1. A double-support backflushing device for a steel rolling mill drive shaft, characterized in that, include: An installation assembly (5) is provided between two sets of bearing seats (1). A power assembly (6) is provided on the upper end of the installation assembly (5). A mobile cleaning assembly (7) is provided on the upper end of the installation assembly (5), and two sets of the mobile cleaning assembly (7) are provided. The mobile cleaning assembly (7) includes a toothed plate (71), a support plate (72), a horizontal plate (73), a baffle (74), a vertical plate (75), an annular air knife (76), a lead screw (77), and a pressing plate (78). The toothed plate (71) is provided on the installation assembly. (5) At the upper end, the support plate (72) is fixedly connected to the toothed plate (71), the horizontal plate (73) is fixedly connected to the upper end of the support plate (72), the baffle (74) is fixedly connected to the upper end of the horizontal plate (73), the vertical plate (75) is fixedly connected to the upper end of the horizontal plate (73), the screw (77) is threadedly connected to the vertical plate (75), the extrusion plate (78) is fixedly connected to the screw (77), and the annular air knife (76) is fixed to the upper end of the horizontal plate (73) through the extrusion plate (78) and the baffle (74).

2. The double-support back-flushing device for a steel rolling mill drive shaft according to claim 1, characterized in that, The mounting assembly (5) includes a base plate (51), a fixing plate (52), and screws (53). The base plate (51) is disposed between two sets of bearing seats (1). The fixing plate (52) is fixedly connected to the upper end of the base plate (51), and there are two sets of fixing plates (52). The screws (53) are threadedly connected to the bearing seats (1). The fixing plate (52) is fixedly connected to the bearing seats (1) by the screws (53).

3. A double support blowback device for a rolling mill drive shaft according to claim 2, characterized in that, The mounting assembly (5) also includes a limiting roller (54), which is provided in eight sets and is rotatably connected to the upper end of the base plate (51).

4. A double support blowback device for a rolling mill drive shaft according to claim 3, characterized in that, The power assembly (6) includes a motor (61), a gear (62) and a limiting bridge (63). The motor (61) is fixedly connected to the bottom of the base plate (51). The gear (62) is rotatably connected to the upper end of the base plate (51). The gear (62) is fixedly connected to the output end of the motor (61). The limiting bridge (63) is fixedly connected to the upper end of the base plate (51). The gear (62) meshes with the toothed plate (71).

5. A double-support back-flushing device for a steel rolling mill drive shaft according to claim 4, characterized in that, The bearing housing (1) is rotatably connected to a coupling (2) on the side near the mounting assembly (5). The coupling (2) is rotatably connected to the bearing housing (1) via a roller bearing (3). A transmission shaft body (4) is provided between the two sets of couplings (2).

6. A mill drive shaft double support blowback device according to claim 5, characterized in that, The bearing housing (1) is provided with a protective component (8) on the side near the coupling (2).

7. A mill drive shaft double support blowback device according to claim 6, characterized in that, The protective component (8) includes an upper shell (81), a lower shell (82), a side plate (83), and a bolt (84). The upper shell (81) and the lower shell (82) are fixedly connected to the side plates (83) on both the left and right sides. The bolt (84) is threadedly connected to the side plates (83).

8. A mill drive shaft double support blowback device according to claim 7, characterized in that, The protective component (8) also includes a mounting ring (85) and a connector (86). The mounting ring (85) is provided in two sets. The two sets of mounting rings (85) are fixedly connected to the upper shell (81) and the lower shell (82) respectively. The connector (86) is fixedly connected to the upper end of the upper shell (81).

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