Quick change transmission and method

By designing a quick-change transmission device, utilizing the trolley and track structure with suspended support plates, and combining hydraulic cylinder-driven inclined wedges to fix the trolley, the disassembly problem of the leveling machine transmission device during roller box replacement was solved, achieving efficient transmission device adaptation and replacement.

CN115502243BActive Publication Date: 2025-11-11CHINA NAT HEAVY MACHINERY RES INSTCO
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Patent Information

Application Number
CN202211209660.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-09-30
Publication Date
2025-11-11
Estimated Expiration
2042-09-30

AI Technical Summary

Technical Problem

The transmission device of the existing leveling machine requires the disassembly of multiple universal couplings when changing the roller box, resulting in a large workload, high difficulty and long downtime, and it cannot efficiently adapt to rollers of different specifications.

Method used

A quick-change transmission device was designed. Utilizing a trolley and track structure, the trolley is suspended in the air by ramps and support plates. Combined with hydraulic cylinders driving wedges to fix the trolley, the overall replacement of the roller box and distribution box can be achieved, reducing the workload of disassembling the universal coupling.

Benefits of technology

It enables a smooth roller box replacement process, reduces disassembly workload and downtime, and adapts to the need for rapid replacement of rollers of different specifications.

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Abstract

This invention provides a quick-change transmission device and method for the transmission of roller boxes inside a leveling machine. It includes a track, on which a trolley is slidably mounted. A distribution box is detachably fixed to the trolley. The input end of the distribution box is connected to a power source, and the output end is connected to a universal coupling, which in turn connects to the roller box. Depending on the force applied to the trolley, some wheels of the trolley may contact or disengage from the track. This invention utilizes the trolley to replace the roller box and distribution box as a whole. During the replacement process, considering the heavy pressure generated by the coupling between the distribution box and the power source after connection, the track below the trolley is improved to prevent damage to the trolley wheels. The end of the track is designed as a ramp. When the trolley travels to the ramp, the wheels are suspended and not under force; the force is borne by the track and its support plate, ensuring a smooth replacement process for the roller box and transmission device, meeting the requirements for changing roller boxes when straightening different specifications in a leveling machine.
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Description

Technical Field

[0001] This invention belongs to the field of metallurgical equipment, and specifically relates to a quick-change transmission device and method. Background Technology

[0002] Leveling machines are mainly used in steel processing production lines. As the core component of the leveling machine, the roller box needs to be regularly inspected or replaced with different configurations depending on the thickness of the aluminum plate being leveled. However, different roller boxes have different roller diameters and spacings, and the original transmission device cannot be matched with the replaced rollers. Therefore, it is also necessary to configure a transmission device that is compatible with them.

[0003] Currently, the common method for replacing roller boxes is to first disassemble the universal coupling between the roller box and the gear distribution box, and then pull the roller box out of the leveling machine frame. However, since each straightening roller is equipped with a universal coupling, there are a large number of universal couplings, making disassembly work more labor-intensive and difficult, resulting in long downtime and hindering production. Summary of the Invention

[0004] The purpose of this invention is to provide a method for quickly changing transmission devices to overcome the above-mentioned technical defects.

[0005] To solve the above-mentioned technical problems, the present invention provides a quick-change transmission device for the transmission of roller boxes in a leveling machine. It includes a track, on which a trolley is slidably mounted. A distribution box is detachably fixed on the trolley. The input end of the distribution box is used to connect to a power source, and the output end is connected to a universal coupling. The universal coupling is connected to the roller box.

[0006] Depending on the changes in the force acting on the trolley, some of the trolley's wheels may come into contact with or leave the track.

[0007] Furthermore, there are two tracks laid in parallel, each track has a ramp at the end, a first support plate is provided on the track with the ramp, and a second support plate is provided between the two tracks.

[0008] When the trolley runs along the track to the slope, the wheel directly above the slope leaves the track, and the trolley above the wheel is suspended in the air and contacts the first support plate and the second support plate, bearing the force through the two support plates.

[0009] Furthermore, multiple fixing devices are evenly distributed around the trolley. Each fixing device includes a support, on which a hydraulic cylinder with a piston rod pointing downwards is mounted, and the piston rod head is provided with an inclined wedge.

[0010] Both sides of the trolley are fixed with inclined blocks, and the hydraulic cylinder drives the inclined wedges to squeeze the inclined blocks.

[0011] Furthermore, a sliding plate is fixed on the support, and the wedge is clamped between the sliding plate and the inclined block. While the hydraulic cylinder drives the wedge to rise and fall, the wedge slides up and down along the sliding plate.

[0012] Furthermore, multiple sets of guide plates are installed on the two tracks, each set containing two guide plates. The two guide plates in each set are parallel and facing each other, and the trolley passes through the middle of each set of guide plates.

[0013] The present invention also provides a method for quickly changing a transmission device, comprising the following steps:

[0014] Place the quick-change transmission device between the power source and the leveling machine;

[0015] The roller box carriage inside the leveling machine is connected to the carriage inside the quick-change transmission device via a pin shaft.

[0016] Quickly change the power source connected to the distribution box inside the transmission device;

[0017] When the roller box needs to be replaced, the roller box carriage and the carriage are pulled out as a whole for replacement.

[0018] Furthermore, the replacement methods specifically include:

[0019] Pull out the original roller box carriage as a whole, and connect the new roller box carriage to the new carriage.

[0020] The new trolley, carrying the distribution box, gradually approaches the power source. When the trolley reaches the ramp of the track, the wheels above the ramp begin to suspend in the air. The bottom of the trolley contacts the first and second support plates. At the same time, the distribution box is inserted into the power source through a chamfered spline. The trolley is connected to the leveling machine with the first bolt. The hydraulic cylinder drives the wedge to press down the inclined block, fixing the trolley and completing the replacement of the transmission device.

[0021] The beneficial effects of this invention are as follows:

[0022] This invention utilizes a trolley to replace the roller box and distribution box as a whole. During the replacement process, considering the heavy pressure generated by the coupling in the distribution box and power source after connection, the track under the trolley was improved to avoid damage to the wheels of the trolley. The end of the track was designed as a ramp. When the trolley travels to the ramp, the wheels are suspended and not under force, and the force is borne by the track and the support plate on it. This ensures that the replacement process of the roller box and transmission device is carried out smoothly and meets the requirements of the leveling machine for replacing roller boxes when straightening different specifications.

[0023] To make the above description of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0024] Figure 1 This is a front view of the quick-change transmission device.

[0025] Figure 2 This is a top view of the quick-change transmission device.

[0026] Figure 3 yes Figure 1 A sectional view along line AA.

[0027] Figure 4 This is a structural diagram of the fixing device.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Motor; 2. Gearbox; 3. Coupling; 4. Distribution box; 5. Universal coupling; 6. Trolley; 7. Pin; 8. First bolt; 9. Hydraulic cylinder; 10. Support; 11. Slide plate; 12. Second bolt; 13. Wedge; 14. Guide plate; 15. First support plate; 16. Wheel; 17. Track; 18. Second support plate; 19. Third bolt; 20. Ramp; 21. Roller trolley; 22. Inclined block; 23. Base. Detailed Implementation

[0030] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0031] It should be noted that, in this invention, the upper, lower, left, and right in the figure are regarded as the upper, lower, left, and right of the quick-change transmission device described in this specification.

[0032] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided to fully and completely disclose the invention and to fully convey its scope to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the drawings is not intended to limit the invention. In the drawings, the same units / elements are referred to by the same reference numerals.

[0033] Unless otherwise stated, the terms used herein (including technical terms) have their common meaning as understood by one of ordinary skill in the art. Furthermore, it is understood that terms defined in commonly used dictionaries should be understood to have a meaning consistent with the context of their relevant field, and not to be interpreted as having an idealized or overly formal meaning.

[0034] First implementation method:

[0035] This embodiment relates to a quick-change transmission device for driving the roller box inside a leveling machine, see reference. Figure 1It includes a track 17, on which a trolley 6 is slidably mounted. A distribution box 4 is detachably fixed on the trolley 6. The input end of the distribution box 4 is used to connect to a power source, and the output end is connected to a universal coupling 5. The universal coupling 5 is connected to a roller box.

[0036] The power source refers to the motor 1, the gearbox 2, and the coupling 3 connected in sequence.

[0037] The connection relationships of the above components are as follows:

[0038] Motor 1 is connected to gearbox 2 via coupling 3. The shaft end of distribution box 4 is a chamfered spline to facilitate alignment between distribution box 4 and coupling 3. Distribution box 4 is connected to the roller box inside the leveling machine via universal coupling 5. Distribution box 4 is bolted to trolley 6. Trolley 6 is connected to roller box trolley 21 via pin 7. When roller box trolley 21 is transported out of the leveling machine, it takes trolley 6 with it. Trolley 6 is bolted to the leveling machine frame via first bolt 8, which is used to fix trolley 6 during leveling.

[0039] like Figure 1 As shown, there are two parallel tracks 17, each with a ramp 20 at its end. A first support plate 15 is provided on the track 17 with the ramp 20. Figure 3 As shown, a second support plate 18 is provided between the two tracks 17, and its function is as follows:

[0040] According to the change of force on the trolley 6, some of the wheels 16 of the trolley 6 contact or detach from the track 17. When the trolley 6 runs along the track 17 to the slope 20, the wheel 16 directly above the slope 20 detaches from the track 17. The trolley 6 directly above the wheel 16 is suspended in the air and contacts the first support plate 15 and the second support plate 18, and bears the force through the two support plates.

[0041] Both support plates are parallel to the trolley 6.

[0042] The end of the aforementioned orbit 17 refers to Figure 1 The rightmost one, which is closest to coupling 3.

[0043] Because after the distribution box 4 and the coupling 3 are connected (such as...) Figure 1 As shown, the wheel 16 directly below the distribution box 4 will bear a large force. However, the contact area between the wheel 16 and the track 17 is small and cannot withstand such a large force. In order to avoid damage to the trolley 6, it is necessary to reduce the force on the wheel 16 or make the wheel 16 free from force. Therefore, the following is proposed: Figure 1 The structure shown.

[0044] In this embodiment, there are three rows of wheels 16 below the trolley 6, and the distribution box 4 is located above the wheels 16 near the coupling 3.

[0045] like Figure 2 and Figure 4 As shown, multiple fixing devices are evenly distributed around the trolley 6. Each fixing device includes a support 10, on which a hydraulic cylinder 9 with its piston rod pointing downwards is mounted. The piston rod head is provided with a wedge 13. Figure 2 Four fixing devices were selected, but the invention is not limited to these.

[0046] Both sides of the trolley 6 are fixed with inclined blocks 22. The hydraulic cylinder 9 drives the inclined wedge 13 to press the inclined blocks 22, as detailed below:

[0047] After the trolley 6 delivers the distribution box 4 to its position, the hydraulic cylinder 9 drives the wedge 13 to press down the inclined block 22 on the trolley 6, thus fixing the trolley 6 in place.

[0048] like Figure 2 As shown, the fixing device consists of four sets, including hydraulic cylinder 9, support 10, slide plate 11, second bolt 12, and wedge 13. Hydraulic cylinder 9 is installed on support 10, and wedge 13 is installed at the front end of hydraulic cylinder 9. After the trolley 6 delivers the distribution box 4 to the position, hydraulic cylinder 9 drives wedge 13 to press against the inclined block 22 on the trolley 6, thus fixing the trolley 6.

[0049] To adjust the lateral position of the fixing device, this embodiment also includes a base 23. The support 10 is fixed to the base 23 by multiple second bolts 12. The base 23 also has elongated holes, such as... Figure 3 As shown, the lateral position of the entire fixing device can be adjusted by the third bolt 19, which is parallel to the ground and perpendicular to the track 17.

[0050] That is, by pushing the support 10 with the third bolt 19, the support 10 is brought closer to or away from the track 17, thereby adjusting the distance between the wedge 13 on the support 10 and the inclined block 22 on the track 17.

[0051] Reference Figure 3 A slide plate 11 is fixed on the support 10. The wedge 13 is clamped between the slide plate 11 and the inclined block 22. While the hydraulic cylinder 9 drives the wedge 13 to rise and fall, the wedge 13 slides up and down along the slide plate 11. The function of the slide plate 11 is to guide the wedge 13 to slide up and down along it, that is, to slide up and down along the slide plate 11 while squeezing the inclined block 22.

[0052] like Figure 3 As shown, multiple sets of guide plates 14 are also installed on the two tracks 17. Each set contains two guide plates 14. The two guide plates 14 in each set are parallel and face each other. The trolley 6 passes through the middle of each set of guide plates 14. The function of the guide plates 14 is to guide and ensure the alignment of the trolley 6.

[0053] The slide plate 11 is bolted to the support 10, and the wedge 13 slides on the slide plate 11. The support 10 is fixed to the base 23 by the second bolt 12. The bolt holes of the base 23 are elongated holes, and the lateral position of the entire fixing device can be adjusted by the third bolt 19. The guide plate 14 is used to ensure the centering of the trolley 6. The first support plate 15 and the second support plate 18 are fixed to the track 17 by screws. The end of the track 17 has a ramp 20. When the trolley 6 is about to reach the position, the wheel 16 reaches the ramp 20 and begins to suspend in the air. The bottom of the trolley 6 contacts the first support plate 15 and the second support plate 18. After reaching the position, the track 17 bears the force through the first support plate 15 and the second support plate 18.

[0054] Second implementation method:

[0055] This embodiment also provides a method for quickly replacing a transmission device, including the following steps:

[0056] Place the quick-change transmission device between the power source and the leveling machine;

[0057] The roller box carriage 21 inside the leveling machine is connected to the carriage 6 inside the quick change transmission device via pin 7;

[0058] Quickly replace the power source connected to the distribution box 4 inside the transmission device;

[0059] When the roller box needs to be replaced, the roller box carriage 21 and carriage 6 are pulled out as a whole for replacement.

[0060] The transmission device can be quickly changed. The motor 1 and the gearbox 2 are connected by the coupling 3. The shaft end of the distribution box 4 is a chamfered spline, which facilitates the alignment of the distribution box 4 and the coupling 3. The distribution box 4 is connected to the roller box inside the leveling machine by the universal coupling 5. The distribution box 4 is bolted to the trolley 6. The trolley 6 is connected to the roller box trolley 21 by the pin 7. When the roller box trolley 21 is transported out of the leveling machine, it takes the trolley 6 out with it.

[0061] The trolley 6 is connected to the leveling machine frame by the first bolt 8, which is used to fix the trolley 6 during leveling. The front end of the hydraulic cylinder 9 is equipped with a wedge 13. After the trolley 6 delivers the distribution box 4 into place, the hydraulic cylinder 9 drives the wedge 13 to press down the inclined block 22 on the trolley 6, thus fixing the trolley 6. There are a total of four sets of this fixing device. The slide plate 11 is connected to the support 10 by bolts. The wedge 13 slides on the slide plate 11. The support 10 is fixed to the base 23 by the second bolt 12. The bolt holes of the base 23 are elongated holes, and the lateral position of the entire fixing device can be adjusted by the third bolt 19. The guide plate 14 ensures the centering of the trolley 6. The first support plate 15 and the second support plate 18 are fixed to the track 17 by screws. The wheel 16 is on the track 17, and the end of the track 17 has a ramp. When the trolley 6 is about to reach the position, the wheel 16 reaches the ramp 20 and begins to suspend in the air; the bottom of the trolley 6 contacts the first support plate 15 and the second support plate 18. After reaching the position, the track 17 bears the force through the first support plate 15 and the second support plate 18.

[0062] The specific replacement methods include:

[0063] Pull out the original roller box carriage 21 and the original carriage 6 as a whole, and connect the new roller box carriage 21 to the new carriage 6.

[0064] The new trolley 6, carrying the distribution box 4, gradually approaches the power source. When the trolley 6 reaches the ramp 20 on the track 17, the wheel 16 above the ramp 20 begins to suspend in the air. The bottom of the trolley 6 contacts the first support plate 15 and the second support plate 18. At the same time, the distribution box 4 is inserted into the power source through the chamfered spline. The first bolt 8 connects the trolley 6 to the leveling machine. The hydraulic cylinder 9 drives the wedge 13 to press down the inclined block 22, fixing the trolley 6 and completing the replacement of the transmission device.

[0065] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes in form and detail may be made without departing from the spirit and scope of the present invention.

Claims

1. A quick-change transmission device for driving the roller box inside a leveling machine, characterized in that: It includes a track (17), on which a trolley (6) is slidably mounted. A distribution box (4) is detachably fixed on the trolley (6). The input end of the distribution box (4) is used to connect to a power source, and the output end is connected to a universal coupling (5). The universal coupling (5) is connected to a roller box. Depending on the change in the force on the trolley (6), some of the wheels (16) of the trolley (6) may contact or disengage from the track (17). A second support plate (18) is provided between the two tracks (17); When the trolley (6) runs along the track (17) to the ramp (20), the wheel (16) directly above the ramp (20) leaves the track (17), and the trolley (6) directly above the wheel (16) is suspended in the air and contacts the first support plate (15) and the second support plate (18), and bears the force through the two support plates; The power source refers to the motor (1), the gearbox (2), and the coupling (3) connected in sequence; The first support plate (15) and the second support plate (18) are both parallel to the trolley (6); The motor (1) and the gearbox (2) are connected by a coupling (3); the shaft end of the distribution box (4) is a chamfered spline, which can make the distribution box (4) and the coupling (3) aligned; the distribution box (4) is bolted to the trolley (6), and the trolley (6) is connected to the roller box trolley (21) by a pin (7). When the roller box trolley (21) is transported out of the leveling machine, it takes the trolley (6) out with it.

2. The quick-change transmission device as described in claim 1, characterized in that: There are two tracks (17) laid in parallel. Each track (17) has a ramp (20) at its end. A first support plate (15) is provided on the track (17) where the ramp (20) is located.

3. The quick-change transmission device as described in claim 1 or 2, characterized in that: A plurality of fixing devices are evenly arranged around the trolley (6). The fixing devices include a support (10), on which a cylinder (9) with the piston rod pointing downward is installed. The piston rod head is provided with a wedge (13). Inclined blocks (22) are fixed on both sides of the trolley (6). The cylinder (9) drives the wedge (13) to squeeze the inclined blocks (22).

4. The quick-change transmission device as described in claim 3, characterized in that: A slide plate (11) is fixed on the support (10), and the wedge (13) is clamped between the slide plate (11) and the inclined block (22). While the hydraulic cylinder (9) drives the wedge (13) to rise and fall, the wedge (13) slides up and down along the slide plate (11).

5. The quick-change transmission device as described in claim 2, characterized in that: Multiple sets of guide plates (14) are also installed on the two tracks (17), each set containing two guide plates (14). The two guide plates (14) in each set are parallel and facing each other, and the trolley (6) passes through the middle of each set of guide plates (14).

6. A method for quickly changing a transmission device, characterized in that, Includes the following steps: The quick-change transmission device according to any one of claims 1-5 is placed between the power source and the leveling machine; The roller box carriage (21) inside the leveling machine is connected to the carriage (6) inside the quick change transmission device via a pin (7); Quickly replace the power source by connecting the distribution box (4) inside the transmission device; When the roller box needs to be replaced, the roller box carriage (21) and carriage (6) are pulled out as a whole for replacement.

7. The method for quickly changing the transmission device as described in claim 6, characterized in that, The specific replacement methods include: Pull out the original roller box trolley (21) and the original trolley (6) as a whole, and connect the new roller box trolley (21) to the new trolley (6); The new trolley (6) carrying the distribution box (4) gradually approaches the power source. When the trolley (6) travels to the slope (20) of the track (17), the wheel (16) above the slope (20) begins to suspend in the air. The bottom of the trolley (6) contacts the first support plate (15) and the second support plate (18). At the same time, the distribution box (4) is inserted into the power source through the chamfered spline. The trolley (6) is connected to the leveling machine with the first bolt (8). The hydraulic cylinder (9) drives the wedge (13) to press down the inclined block (22) and fix the trolley (6), thus completing the replacement of the transmission device.

Citation Information

Patent Citations

  • Device for replacing rollers of pilger seamless tube mill

    CN102441575A

  • Straightening machine capable of automatically replacing various roller boxes

    CN111633056A

  • Quick roll changing device of two-roll horizontal rolling mill

    CN216937702U