Rack-type riding wheel device of tapping machine

Abstract

The utility model discloses a rack type tapping machine riding wheel device, which belongs to the technical field of tapping machines, and comprises a base, a central shaft, a crank frame and a riding wheel, the riding wheel comprises a shaft pin, a bearing body and a wheel body, the shaft pin comprises a first diameter section, two second diameter sections and two rectangular sections, the two second diameter sections are respectively arranged at two ends of the first diameter section, and the two rectangular sections are respectively arranged at two ends of the bearing body. And the two second diameter sections are respectively connected with a locking nut. The two second diameter sections are connected with the locking nuts respectively, the left-right position of the bearing body on the first diameter section can be finely adjusted through the locking nuts, so that the left-right position of the wheel body is adjusted, the material rod grooves in the wheel body can correspond to the supported material rods, the corresponding wheel bodies are not impacted any more in the common operation process of the multiple material rods, and the material rods are prevented from being damaged. The central shaft of the riding wheel device is protected; the multiple riding wheels are located at the same height, the multiple material rods are evenly stressed, when the riding wheels are located at the same height, the driving motors of the material rods are evenly stressed, and damage caused by uneven stress of the driving motors of the material rods is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of steel tapping machine technology, specifically relating to a rack and pinion type steel tapping machine support roller device. Background Technology

[0002] The tapping machine is located directly in front of the furnace tapping side. It is a device used to lift the heated slab from the furnace and place it stably on the tapping roller conveyor. The rack and pinion tapping machine uses a gearbox to drive a rack-type bar to move back and forth. The support rollers lift the bar near its end, raising it and causing it to lift the slab from the furnace bottom beam. During tapping, the support rollers act as guides, supporting, guiding, and lifting the bar. Because the bar of the existing rack and pinion tapping machine is relatively long, generally greater than 10 meters, at this length, the bar will have a certain amount (3-4 mm) of bending. During the back and forth movement of the bar, the bent bar is prone to impacting the support rollers, which can easily damage the support roller shaft. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a rack and pinion tapping machine roller support device to reduce the impact of the material rod on the roller support during the operation of the tapping machine.

[0004] Technical solution: To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A rack-and-pinion steel tapping machine support roller device includes a base, a central shaft rotatably connected to the base, a crank frame connected to the central shaft, and a support roller connected to the crank frame. The support roller includes a pin connected to the crank frame, a bearing body connected to the pin, and a wheel body connected to the bearing body. The pin includes a first diameter section, two second diameter sections, and two rectangular sections. The two second diameter sections are respectively disposed at both ends of the first diameter section, and locking nuts are respectively connected to the two second diameter sections.

[0006] Furthermore, the threads on the two second diameter segments have the same direction of rotation, and the two locking nuts are symmetrically arranged.

[0007] Furthermore, the diameter of the first diameter segment is greater than the diameter of the second diameter segment, and the diameter of the smallest covering circle of the rectangular segment is smaller than the diameter of the second diameter segment.

[0008] Furthermore, the crank arm is provided with a first groove corresponding to the rectangular segment, and a locking block corresponding to the first groove is connected to the crank arm. When the rectangular segment is placed in the first groove, the locking block presses on the rectangular segment.

[0009] Furthermore, the crank arm includes a sleeve and a first handle plate and a second handle plate connected to the sleeve. The sleeve is sleeved on the central shaft, and the two ends of the shaft pin are respectively connected to the first handle plate and the second handle plate.

[0010] Furthermore, a first key is provided between the central shaft and the sleeve, and there is one or more first keys.

[0011] Furthermore, there is one or more bases and one or more crank brackets.

[0012] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0013] 1. By setting a first diameter section and two second diameter sections on the shaft pin, and connecting locking nuts to the two second diameter sections respectively, the left and right positions of the bearing body on the first diameter section can be finely adjusted by the locking nuts, thereby adjusting the left and right positions of the wheel body, so that the material rod groove on the wheel body can correspond to the material rod being supported, and multiple material rods will no longer impact the corresponding wheel body during the joint operation, thus protecting the central shaft of the support roller device;

[0014] 2. Multiple support rollers are connected to the central shaft through a crank bracket to form an integrated connection. The multiple support rollers are at the same height, resulting in good overall rigidity. The multiple material rods are subjected to uniform force, and being at the same height, the drive motor of the material rod is subjected to uniform force, reducing damage to the material rod drive motor caused by uneven force. Attached Figure Description

[0015] Figure 1 This is a side view of the support roller structure according to an embodiment of the present utility model;

[0016] Figure 2 yes Figure 1 Cross-sectional structural diagram of line AA;

[0017] Figure 3 This is a schematic diagram of the shaft pin structure in an embodiment;

[0018] Figure 4 This is a side view schematic diagram of the shaft pin structure in the embodiment;

[0019] Figure 5 This is a schematic diagram of the connection between the shaft pin and the crankcase in an embodiment.

[0020] Figure 6 This is a schematic diagram of the support roller device according to an embodiment of the present utility model;

[0021] Figure 7 This is a schematic diagram of the steelmaking machine structure in an embodiment. Detailed Implementation

[0022] The present invention will be further illustrated below with reference to specific embodiments. The embodiments are implemented based on the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0023] like Figure 6 and Figure 7 As shown, a rack-and-pinion steel tapping machine support roller device includes a base 1, a central shaft 2, a crank frame 3, and support rollers 4. Multiple bases 1 are arranged side by side, and the central shaft 2 passes through multiple bases 1 and is movably connected to the bases 1. In this embodiment, the base 1 is provided with an oil-impregnated bearing, and the central shaft 2 is rotatably connected to the base 1 through the oil-impregnated bearing. In this embodiment, the central shaft 2 is divided into three sections, and each section is connected in the middle by a coupling 29, thereby ensuring that the central shaft 2 rotates as a whole. The central shaft 2 is connected to a lifting hydraulic cylinder 8 through a rocker arm. When the lifting hydraulic cylinder 8 is working, the piston rod extends, and the rocker arm drives the central shaft 2 to rotate a certain angle. The crank bracket 3 is connected to the central shaft 2. There is more than one crank bracket 3. In this embodiment, there are six crank brackets 3. The support rollers 4 are connected to the crank bracket 3. There are six support rollers 4. The six support rollers 4 are used to support the six corresponding material rods from below. After the central shaft 2 rotates at a certain angle, it drives the support rollers 4 to move upward through the crank bracket 3. The support rollers 4 lift the corresponding material rods upward. Since the six support rollers 4 are at the same height after being connected to the central shaft 2, when the central shaft 2 rotates, it can drive the six support rollers 4 to move up and down or down synchronously. The six material rods that are lifted are subjected to uniform force.

[0024] like Figure 5 and Figure 6 As shown, the crank arm 3 includes a sleeve 33, a first handle plate 31, and a second handle plate 32. The sleeve 33 is sleeved on the central shaft 2. A first key 21 is provided between the central shaft 2 and the sleeve 33. The central shaft 2 has a first keyway corresponding to the first key 21, and the sleeve 33 has a second keyway corresponding to the first key 21. The sleeve 33 and the central shaft 2 are in transition fit. There is one or more first keys 21. In this embodiment, there are two first keys 21. The two first keys 21 are symmetrically arranged so as to transmit torque. When the central shaft 2 rotates at a certain angle, it drives the crank arm 3 to rotate around the central shaft 2. The first handle plate 31 and the second handle plate 32 are symmetrically arranged on the outer wall of the sleeve 33 and extend outward. The support roller 4 is connected between the first handle plate 31 and the second handle plate 32.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the roller 4 includes a pin 41, a bearing body 42, a wheel body 43, and two locking nuts 44. The pin 41 is a stepped shaft comprising multiple segments, including a first diameter segment 411, two second diameter segments 412, and two rectangular segments 413. The first diameter segment 411 is located in the middle of the pin 41 and is symmetrically arranged with the center line of the pin 41 as the line of symmetry. The two second diameter segments 412 are located at both ends of the first diameter segment 411, and the two rectangular segments 413 are located at the ends of the two second diameter segments 412. On the outer side, the diameter of the first diameter segment 411 is larger than the diameter of the second diameter segment 412. The four sides of the rectangular segment 413 are straight, and the four corners are chamfered to form a chamfered rectangle. The diameter of the smallest covering circle of the rectangular segment 413 is smaller than the diameter of the second diameter segment 412, thus the axle pin 41 forms a stepped shaft that gradually rises inward. The bearing body 42 is connected to the first diameter segment 411 of the axle pin 41, and the bearing body 42 can slide axially relative to the axle pin 41, thereby allowing for fine adjustment of the left and right positions of the bearing body 42. The wheel body 43 is connected to the bearing body 42. The wheel body 43 is annular, and the outer circumferential surface of the wheel body 43 is provided with a material rod groove, which corresponds to the material rod to be supported, preventing the material rod from sliding during the upward lifting of the support roller 4. The wheel body 43 is rotatably connected to the axle pin 41 through the bearing body 42. Each of the two second diameter segments 412 has an external thread, and the threads on the two second diameter segments 412 have the same direction of rotation. Two locking nuts 44 are threadedly connected to one of the second diameter segments 412. The two locking nuts 44 are symmetrically arranged. When the locking nuts 44 are tightened, they can press inward against the bearing body 42 (in this embodiment, the locking nuts 44 are pressed against the side of the bearing body 42 through a bushing). By adjusting the position of the two locking nuts 44, the left and right positions of the bearing body 42 and the wheel body 43 on the shaft pin 41 can be finely adjusted, so the left and right positions of the wheel body 43 can be finely adjusted. Since the length of the feed rod of the steel output machine in this embodiment is 15 meters, the feed rod will bend by 3-4 millimeters at this length. During operation, the feed rod is prone to impacting the edge of the feed rod groove of the wheel body 43, causing stress damage to the central shaft 2. By adjusting the left and right positions of the wheel body 43, the feed rod groove on the wheel body 43 can correspond to the feed rod, and the feed rod will no longer impact the wheel body 43 during operation, thus protecting the central shaft 2.

[0026] like Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the pin 41 of the support roller 4 is connected to the crank frame 3. The two ends of the pin 41 are connected to the first handle plate 31 and the second handle plate 32 respectively. The first handle plate 31 and the second handle plate 32 of the crank frame 3 are respectively provided with the first groove 301 corresponding to the rectangular segment 413. The first groove 301 is a rectangular groove. The first grooves 301 on the first handle plate 31 and the second handle plate 32 are symmetrically arranged. The upper part of the first groove 301 is open. When the two rectangular segments 413 are placed in the corresponding first grooves 301, the support roller 4 is located between the first handle plate 31 and the second handle plate 32. The two shoulders of the support roller 4 (the outermost step of the pin 41) are engaged with the inner stop of the crank frame 3, with a 1mm gap on each side. The two shoulders and the inner stop of the crank frame 3 are all machined to ensure the assembly dimensions. Locking blocks 34 are respectively connected to the first handle plate 31 and the second handle plate 32 of the crank frame 3. The position of the locking block 34 corresponds to the first groove 301. The locking block 34 is a strip-shaped block. The locking block 34 is detachably connected to the corresponding handle plate by two locking bolts. The first handle plate 31 and the second handle plate 32 are provided with internal threaded holes corresponding to the locking bolts. When the rectangular section 413 is placed in the first groove 301, the locking block 34 presses on the rectangular section 413, thereby restricting the movement of the rectangular section 413. When the central shaft 2 rotates, the crank frame 3 drives the support roller 4 to move up or down around the central shaft 2.

[0027] like Figure 7 As shown, the gearbox 93 of the tapping machine controls the forward and backward movement of the material rod 92 under the drive of the motor and reducer. When the material rod 92 moves forward, it moves towards the slab 91. At this time, the central shaft 2 of the traction wheel device in this embodiment rotates at a certain angle under the drive of the lifting hydraulic cylinder 8, thereby driving the support wheel 4 to move upward around the central shaft 2 through the crank frame 3. The support wheel 4 lifts the material rod 92, which is used to support the slab 91. The support wheel 4 plays the role of lifting the material rod 92 to lift the slab 91 from the furnace bottom beam, and also serves as support and guide during translational movement. The horizontal outward movement of the material rod 92 is achieved by the meshing of the gear rack on the material rod 91 by the motor-reducer-gearbox 93-gear shaft.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A rack-type tundish wheel device, characterized by comprising: The device includes a base (1), a central shaft (2) rotatably connected to the base (1), a crank frame (3) connected to the central shaft (2), and a support roller (4) connected to the crank frame (3). The support roller (4) includes a pin (41) connected to the crank frame (3), a bearing body (42) connected to the pin (41), and a wheel body (43) connected to the bearing body (42). The pin (41) includes a first diameter section (411), two second diameter sections (412), and two rectangular sections (413). The two second diameter sections (412) are respectively located at both ends of the first diameter section (411), and locking nuts (44) are respectively connected to the two second diameter sections (412).

2. A rack type tundish wheel arrangement according to claim 1, characterised in that, The two second diameter segments (412) have the same thread direction, and the two locking nuts (44) are symmetrically arranged.

3. A rack type tundish wheel arrangement according to claim 2, characterised in that, The diameter of the first diameter segment (411) is greater than the diameter of the second diameter segment (412), and the diameter of the smallest covering circle of the rectangular segment (413) is smaller than the diameter of the second diameter segment (412).

4. A rack type tundish wheel arrangement according to claim 3, characterised in that, The crank arm (3) is provided with a first groove (301) corresponding to the rectangular segment (413), and a locking block (34) corresponding to the first groove (301) is connected to the crank arm (3). When the rectangular segment (413) is placed in the first groove (301), the locking block (34) presses on the rectangular segment (413).

5. The rack type tundish roller device according to claim 1, wherein The crank arm (3) includes a sleeve (33) and a first handle plate (31) and a second handle plate (32) connected to the sleeve (33). The sleeve (33) is sleeved on the central shaft (2). The two ends of the shaft pin (41) are connected to the first handle plate (31) and the second handle plate (32) respectively.

6. A rack type tundish wheel arrangement according to claim 5, characterised in that, A first key (21) is provided between the central shaft (2) and the sleeve (33), and there is one or more first keys (21).

7. A rack type tundish wheel arrangement according to claim 1 wherein, There is one or more bases (1) and one or more crank brackets (3).

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