Adjustable roller coupling assembly

Abstract

The utility model provides an adjustable roller coupler assembly, which relates to the field of couplings, and adopts the technical scheme that the adjustable roller coupler assembly comprises a connecting assembly used for connecting a roller, and further comprises an adjusting toothed bar, one end of the adjusting toothed bar is provided with an outer gear, the outer gear is a bevel gear, and the outer gear is meshed with an inner gear of the connecting assembly; the adjusting toothed bar can drive the connecting assembly to rotate, the other end of the adjusting toothed bar is used for being connected with a power shaft, the adjusting toothed bar further comprises a threaded section, the threaded section is close to the outer gear, and threads are arranged on the outer circumferential face of the threaded section. The rotating thread sleeve is rotatably and coaxially arranged at the end, away from the roller, of the connecting assembly, a threaded inner hole is formed in the rotating thread sleeve, and the threaded section penetrates through the threaded inner hole; the lock nut is arranged on the threaded section and can abut against the end face of the rotating threaded sleeve. According to the utility model, the adjustment error can be reduced, and the adjustment efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of couplings, and more particularly to an adjustable roll coupling assembly. Background Technology

[0002] Ribbed anchors are anchors with regularly raised ribs on their surface, typically made of high-strength steel (such as rebar). Their rib design significantly improves anchoring performance by increasing friction with grouting materials (such as cement mortar) or soil. Compared to ordinary smooth round anchors, the unique structure of ribbed anchors makes them perform better under complex geological conditions. The ribs are manufactured using a hot-rolling process, where the steel billet is heated and then rolled using a three-roll skew mill to form spiral ribs. Ribbed anchors are commonly used in tunnel engineering, mine support, and slope stabilization. Different scenarios require different rib angles, and the rib angle affects the performance of the ribbed anchor.

[0003] In the prior art, ribs with different tilt angles are obtained by adjusting the roll phase angle of a three-roll skew rolling mill. The rolls are connected to the output shaft of a reducer via an adjustable coupling, as shown in the attached figure. Figure 1 As shown, the adjustable coupling includes two discs and a lead screw connected by multiple bolts. Two sliders are located at both ends of the lead screw. One disc is connected to the roll, and its end face has two grooves. The two grooves are not collinear, and the width of the groove is greater than the width of the slider. The sliders can move along the corresponding grooves, and the two can rotate relative to each other. During adjustment, the connecting bolts are first released, and the lead screw is rotated a corresponding number of turns (the number of turns corresponds to the roll phase angle). The two sliders move along the lead screw. Because the grooves are not collinear, when the sliders move linearly, the sliders and grooves rotate, causing the crankshaft disc to move circumferentially, driving the roll to the corresponding position. After adjustment, the connecting bolts are tightened.

[0004] The above technical solutions for adjusting the roll angle using adjustable couplings present the following technical problems: First, before adjustment, multiple connecting bolts between the two crankshaft discs need to be loosened, and after adjustment, they need to be tightened, which involves a large workload and affects adjustment efficiency. Second, to ensure smooth adjustment, the gap between the slider and the groove is large, which makes the crankshaft disc adjustment inaccurate and increases the roll adjustment error. Utility Model Content

[0005] To address the technical problems of low efficiency and inaccuracy in adjusting the roll angle of a three-roll skew mill in the prior art, this invention provides an adjustable roll coupling assembly that can reduce adjustment errors and improve adjustment efficiency.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an adjustable roll coupling assembly, including a connecting assembly for connecting rolls, and further including: an adjusting rack, one end of which is provided with an external gear, the external gear being a helical gear, the external gear meshing with the internal gear of the connecting assembly, the adjusting rack being able to drive the connecting assembly to rotate, the other end of which is used to connect a power shaft, the adjusting rack also including a threaded section, the threaded section being close to the external gear, the outer circumference of the threaded section being provided with threads; a rotating screw sleeve, the rotating screw sleeve being rotatable and coaxially disposed at one end of the connecting assembly from the roll, the rotating screw sleeve being provided with a threaded inner hole, the threaded section penetrating the threaded inner hole; and a locking nut, the locking nut being disposed on the threaded section and being able to abut against the end face of the rotating screw sleeve.

[0007] This invention converts threaded transmission into gear transmission. The gear drives the connecting component to rotate, which in turn drives the roller to rotate, thus adjusting the phase angle. Compared with the prior art, on the one hand, only the locking nut needs to be rotated to unlock, eliminating the need to disassemble multiple bolts, which greatly improves efficiency. On the other hand, there is no large gap, and the number of rotations of the screw sleeve corresponds more accurately to the final rotation angle of the roller, improving the adjustment accuracy.

[0008] Furthermore, the connecting assembly includes a rotating sleeve and a transmission gear sleeve. The rotating sleeve is used to connect with the roll. The transmission gear sleeve is disposed inside the rotating sleeve and can drive the rotating sleeve to rotate. The internal gear is coaxially disposed inside the transmission gear sleeve. One end of the transmission gear sleeve extends out of the rotating sleeve and is rotatably connected to the rotating screw sleeve.

[0009] Furthermore, a drum-shaped gear is coaxially arranged on the outside of the transmission sleeve, and an inner transmission gear is arranged on the inner wall of the rotating sleeve, wherein the drum-shaped gear meshes with the inner transmission gear.

[0010] This invention uses a drum-shaped gear to transmit power between the transmission sleeve and the rotating sleeve. On the one hand, the gear transmission clearance is small and the precision is high, which further improves the adjustment accuracy. On the other hand, the drum-shaped design of the drum gear can adapt to axial displacement within a certain range, ensuring good meshing and power transmission between gears, and avoiding problems such as poor tooth surface contact, increased wear, or even gear jamming caused by axial displacement.

[0011] Furthermore, a limiting disk one is coaxially provided at the end of the transmission gear sleeve, and an annular limiting groove is provided on the inner wall of the opening of the rotating screw sleeve. The limiting disk one is rotatably disposed in the limiting groove. A limiting disk two is coaxially provided at the end of the rotating screw sleeve near the transmission gear sleeve. The limiting disk two is rotatably disposed at the end of the transmission gear sleeve, and the end face of the limiting disk two can abut against the end face of the limiting disk one.

[0012] This invention effectively prevents the axial movement of the rotating screw sleeve by the cooperation of limiting plate one and limiting plate two, which can ensure the transmission accuracy of the thread and further ensure the adjustment accuracy of the roll angle.

[0013] Furthermore, the first limiting disk and the transmission gear sleeve, as well as the second limiting disk and the rotating screw sleeve, are all connected by bolts. The first limiting disk has an annular positioning protrusion on its end face near the second limiting disk. The positioning protrusion surrounds the outer side of the end of the rotating sleeve. The second limiting disk is correspondingly provided with an annular positioning groove, and the positioning protrusion can extend into the positioning groove.

[0014] This invention facilitates installation and positioning by using positioning protrusions and positioning grooves, preventing misalignment.

[0015] Furthermore, the connecting assembly also includes a connecting sleeve for connecting the roll. The connecting sleeve is coaxially arranged with the rotating sleeve. The end of the connecting sleeve near the rotating sleeve is provided with a connecting hole. The end of the rotating sleeve is provided with a connecting shaft. The connecting shaft extends into the connecting hole and the two are keyed together. The end of the connecting shaft is provided with a limiting disk three, which can abut against the bottom of the hole of the connecting sleeve.

[0016] This utility model facilitates connection with the rolling mill by setting a connecting sleeve.

[0017] Furthermore, the lock nut is provided with an anti-loosening set screw along its radial direction, and the anti-loosening set screw can abut against the threaded section.

[0018] This invention prevents the lock nut from loosening by using an anti-loosening set screw.

[0019] Furthermore, the rotating screw sleeve is provided with a screw hole along its radial direction, and the screw hole is used to connect with the screw rod.

[0020] This invention facilitates the installation of the screw rod by providing a screw hole, and makes it easy to operate by rotating the screw sleeve.

[0021] As can be seen from the above technical solutions, this utility model has the following advantages:

[0022] This utility model provides an adjustable roll coupling assembly. By converting threaded transmission into gear transmission, the gear drives the connecting assembly to rotate, which in turn drives the roll to rotate, thus adjusting the phase angle. Compared with existing technologies, firstly, unlocking is achieved simply by rotating the locking nut, eliminating the need to disassemble multiple bolts, significantly improving efficiency. Secondly, there is no large clearance, and the number of rotations of the screw sleeve corresponds more accurately to the final rotation angle of the roll, improving adjustment precision. Power transmission between the transmission sleeve and the rotating sleeve is achieved through a drum-shaped gear. On the one hand, the gear transmission has small clearance and high precision, further improving adjustment accuracy. On the other hand… The drum-shaped design of the gears allows them to adapt to axial displacement within a certain range, ensuring good meshing and power transmission between gears and avoiding problems such as poor tooth surface contact, increased wear, or even gear jamming caused by axial displacement. The cooperation of limit disc one and limit disc two effectively prevents axial movement of the rotating sleeve, ensuring the transmission accuracy of the thread and further guaranteeing the accuracy of the roll angle adjustment. The positioning protrusions and positioning grooves facilitate installation and positioning, preventing misalignment. The connecting sleeve facilitates connection with the roll. The anti-loosening set screw prevents the lock nut from loosening. The screw hole facilitates the installation of the screw rod and facilitates operation to rotate the rotating sleeve. Attached Figure Description

[0023] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the existing technology.

[0025] Figure 2 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0027] In the diagram, 1. Connecting assembly; 101. Connecting sleeve; 102. Limiting disc three; 103. Rotating sleeve; 104. Drum gear; 105. Internal gear; 2. Adjusting rack; 201. External gear; 202. Threaded section; 3. Rotating screw sleeve; 4. Locking nut; 5. Limiting disc two; 501. Positioning groove; 6. Limiting disc one; 601. Positioning protrusion; 7. Disc; 8. Lead screw; 9. Slider; 10. Connecting bolt; 11. Roller. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0029] like Figure 2 As shown in the figure, this specific embodiment provides an adjustable roll coupling assembly, including a connecting component 1, an adjusting rack 2, a rotating sleeve 3, and a locking nut 4. The connecting component 1 is used to connect the roll 11. One end of the adjusting rack 2 is provided with an external gear 201, which is a helical gear. The external gear 201 meshes with the internal gear 105 of the connecting component 1. The adjusting rack 2 can drive the connecting component 1 to rotate. The other end of the adjusting rack 2 is used to connect a power shaft. The adjusting rack 2 also includes a threaded section 202, which is close to the external gear 201. The outer circumferential surface of the threaded section 202 is provided with threads. The rotating sleeve 3 is rotatably and coaxially disposed at one end of the connecting component 1 from the roll 11. The rotating sleeve 3 is provided with a threaded inner hole, and the threaded section 202 passes through the threaded inner hole. The locking nut 4 is disposed on the threaded section 202 and can abut against the end face of the rotating sleeve 3.

[0030] When adjustment is required, first rotate the locking nut 4, and then rotate the rotating sleeve 3. Since the rotating sleeve 3 cannot move axially, the adjusting rack 2 can move axially, thereby driving the external gear 201 to move axially. Since the external gear 201 and the internal gear 105 are engaged by helical teeth, the internal gear 105 can rotate, thereby causing the connecting assembly 1 to rotate, thus realizing the adjustment of the phase angle of the roll 11. This specific embodiment converts the threaded drive into a gear drive, and the gear drives the connecting assembly 1 to rotate, thereby driving the roll 11 to rotate, thus realizing the adjustment of the phase angle. Compared with the prior art, on the one hand, only the locking nut 4 needs to be rotated to unlock and lock, without disassembling and assembling multiple bolts, which greatly improves efficiency. On the other hand, there is no large gap between the gear drive and the threaded drive, and the number of rotations of the sleeve 3 corresponds more accurately to the final rotation angle of the roll 11, improving the adjustment accuracy.

[0031] like Figure 2 As shown, in order to prevent loosening and backing, the locking nut 4 is provided with anti-loosening set screws along its radial direction. The anti-loosening set screws can abut against the threaded section 202. In this specific embodiment, three anti-loosening set screws are provided.

[0032] like Figure 2As shown, in this specific embodiment, the connecting component 1 can adopt the following specific structure: the connecting component 1 includes a rotating sleeve 103, a transmission gear sleeve, and a connecting sleeve 101. The rotating sleeve 103 is connected to the connecting sleeve 101, and the connecting sleeve 101 is used to connect to the roll 11. The rotating sleeve 103 can drive the roll 11 to rotate. The transmission gear sleeve is disposed inside the rotating sleeve 103 and can drive the rotating sleeve 103 to rotate. The internal gear 105 is coaxially disposed inside the transmission gear sleeve. One end of the transmission gear sleeve extends out of the rotating sleeve 103 and is rotatably connected to the rotating screw sleeve 3. Furthermore, a drum-shaped gear 104 is coaxially disposed outside the transmission gear sleeve, and an internal transmission gear is disposed on the inner wall of the rotating sleeve 103. The drum-shaped gear 104 meshes with the internal transmission gear. The connecting sleeve 101 and the rotating sleeve 103 are coaxially arranged. The end of the connecting sleeve 101 near the rotating sleeve 103 is provided with a connecting hole, and the end of the rotating sleeve 103 is provided with a connecting shaft. The connecting shaft extends into the connecting hole and the two are keyed together. The end of the connecting shaft is provided with a limiting disk 3 102, which can abut against the bottom of the hole of the connecting sleeve 101. The power transmission between the transmission sleeve and the rotating sleeve 103 is realized by the drum-shaped gear 104. On the one hand, the gear transmission clearance is small and the precision is high, which further improves the adjustment accuracy. On the other hand, the drum-shaped design of the drum-shaped gear 104 can adapt to axial displacement within a certain range, ensuring good meshing and power transmission between gears, and avoiding problems such as poor tooth surface contact, increased wear, or even gear jamming caused by axial displacement.

[0033] like Figure 2 and Figure 3As shown, to achieve the rotational connection between the connecting component 1 and the rotating sleeve 3 and to prevent the rotating sleeve 3 from moving axially, in this specific embodiment, a limiting disk 6 is coaxially provided at the end of the transmission sleeve. An annular limiting groove is provided on the inner wall of the opening of the rotating sleeve 3. The limiting disk 6 is rotatably disposed in the limiting groove, and the outer circle of the limiting disk 6 is clearance-fitted with the bottom of the limiting groove. A limiting disk 5 is coaxially provided at the end of the rotating sleeve 3 near the transmission sleeve. The limiting disk 5 is rotatably disposed at the end of the transmission sleeve, and the inner hole of the limiting disk 5 is clearance-fitted with the outer circle of the transmission sleeve. The end face of the limiting disk 5 can abut against the end face of the limiting disk 6. When the rotating sleeve 3 is rotated, if it needs to move axially, the limiting disk 25 abuts against the limiting disk 6 to restrict its movement away from the roll 11. The positioning groove abuts and restricts its movement towards the roll 11. It can be seen that the cooperation of the first positioning plate 6 and the second positioning plate 5 effectively prevents the axial movement of the rotating sleeve 3, ensuring the transmission accuracy of the thread and further ensuring the angle adjustment accuracy of the roll 11. Furthermore, the first positioning plate 6 and the transmission gear sleeve, as well as the second positioning plate 5 and the rotating sleeve 3, are all connected by bolts. The first positioning plate 6 has an annular positioning protrusion 601 on its end face near the second positioning plate 5. The positioning protrusion 601 surrounds the outer side of the end of the rotating sleeve 103. The second positioning plate 5 is correspondingly provided with an annular positioning groove 501. The inner hole of the positioning protrusion 601 is clearance-fitted with the outer circle of the transmission gear sleeve. The positioning protrusion 601 can extend into the positioning groove 501. The positioning protrusion 601 and the positioning groove 501 facilitate installation and positioning and prevent misalignment.

[0034] like Figure 2 As shown, for ease of operation, in this specific embodiment, the rotating screw sleeve 3 is provided with a screw hole along its radial direction, and the screw hole is used to connect with the screw rod; when rotation is required, the screw rod is installed and force is applied to rotate, which is convenient and labor-saving.

[0035] In this specific embodiment, the external gear 201 and the adjusting rack 2 are integrated structures, and the internal gear 105, the transmission gear sleeve, and the drum gear 104 are integrated structures.

[0036] The adjustment process for this coupling is as follows:

[0037] After removing the anti-loosening set screw, rotate the lock nut 4 away from the rotating sleeve 3, and then rotate the rotating sleeve 3 a set number of turns or angle to adjust the axial movement of the rack 2. As the external gear 201 and the internal gear 105 gradually mesh or disengage, they drive the transmission gear sleeve to rotate, which in turn drives the rotating sleeve 103 to rotate forward or backward at a set angle, so that the connecting sleeve 101 drives the roller 11 to rotate to a suitable phase angle. After adjustment, rotate the lock nut 4 until it abuts against the rotating sleeve 3, and then tighten the anti-loosening set screw.

[0038] As can be seen from the above specific embodiments, this utility model has the following beneficial effects:

[0039] 1. By converting the threaded drive into a gear drive, the gear drives the connecting component 1 to rotate, which in turn drives the roller 11 to rotate, thereby achieving the adjustment of the phase angle. Compared with the existing technology, on the one hand, only the locking nut 4 needs to be rotated to unlock, without the need to disassemble and install multiple bolts, which greatly improves efficiency. On the other hand, there is no large gap, and the number of rotations of the screw sleeve 3 corresponds more accurately to the final rotation angle of the roller 11, which improves the adjustment accuracy.

[0040] 2. The power transmission between the transmission sleeve and the rotating sleeve 103 is realized by the drum-shaped gear 104. On the one hand, the gear transmission clearance is small and the precision is high, which further improves the adjustment accuracy. On the other hand, the drum-shaped design of the drum-shaped gear 104 can adapt to axial displacement within a certain range, ensuring good meshing and power transmission between gears, and avoiding problems such as poor tooth surface contact, increased wear, or even gear jamming caused by axial displacement.

[0041] 3. The cooperation of limit plate 6 and limit plate 5 effectively prevents the axial movement of the rotating screw sleeve 3, ensuring the transmission accuracy of the thread and further ensuring the angle adjustment accuracy of the roll 11.

[0042] 4. The positioning protrusion 601 and positioning groove 501 facilitate installation and positioning, and prevent misalignment;

[0043] 5. The connecting sleeve 101 facilitates connection with the roll 11;

[0044] 6. The locking nut 4 is prevented from loosening by using the anti-loosening set screw;

[0045] 7. The screw hole facilitates the installation of the screw rod and the operation of the rotating screw sleeve 3.

[0046] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An adjustable roll coupling assembly comprising a connecting assembly (1) for connecting the rolls, characterized in that, Also include: Adjusting rack (2), one end of the adjusting rack (2) is provided with a gear (201), the gear (201) is a helical gear, the gear (201) is engaged with the inner gear (105) of the connecting assembly (1), the adjusting rack (2) can drive the connecting assembly (1) to rotate, the other end of the adjusting rack (2) is used for connecting power shaft, the adjusting rack (2) further includes a threaded section (202), the threaded section (202) is close to the gear (201), the outer circumferential surface of the threaded section (202) is provided with threads; Rotary sleeve (3), the rotary sleeve (3) is rotatable and coaxially arranged at one end of the connecting assembly (1) principle roll, the rotary sleeve (3) is provided with a threaded hole, the threaded section (202) penetrates the threaded hole; Lock nut (4), the lock nut (4) is arranged on the threaded section (202) and can abut against the end face of the rotary sleeve (3).

2. The adjustable roll coupling assembly of claim 1, wherein, The connecting assembly (1) includes a rotating sleeve (103) and a transmission gear sleeve, the rotating sleeve (103) is used for connecting with a roll, the transmission gear sleeve is arranged inside the rotating sleeve (103) and can drive the rotating sleeve (103) to rotate, the inner gear (105) is coaxially arranged inside the transmission gear sleeve, one end of the transmission gear sleeve protrudes from the rotating sleeve (103) and is rotatably connected with the rotary sleeve (3).

3. The adjustable roll coupling assembly of claim 2, wherein, The transmission gear sleeve is coaxially provided with a drum gear (104) outside, the inner transmission gear is arranged on the inner wall of the rotating sleeve (103), and the drum gear (104) is engaged with the inner transmission gear.

4. The adjustable roll coupling assembly of claim 2, wherein, The end of the transmission gear sleeve is coaxially provided with a limiting disc one (6), the inner wall of the opening of the rotary sleeve (3) is provided with an annular limiting groove, the limiting disc one (6) is rotatably arranged in the limiting groove, the rotary sleeve (3) is coaxially provided with a limiting disc two (5) close to the end of the transmission gear sleeve, the limiting disc two (5) is rotatably arranged at the end of the transmission gear sleeve, and the end face of the limiting disc two (5) can abut against the end face of the limiting disc one (6).

5. The adjustable roll coupling assembly of claim 4, wherein, The limiting disc one (6) and the transmission gear sleeve and the limiting disc two (5) and the rotary sleeve (3) are connected by bolts, the end face of the limiting disc one (6) close to the limiting disc two (5) is provided with an annular positioning protrusion (601), the positioning protrusion (601) surrounds the outside of the end of the rotating sleeve (103), and the limiting disc two (5) is correspondingly provided with an annular positioning groove (501), and the positioning protrusion (601) can be inserted into the positioning groove (501).

6. The adjustable roll coupling assembly of claim 2, wherein, The connecting assembly (1) further comprises a connecting sleeve (101) for connecting a roller, the connecting sleeve (101) is coaxially arranged with the rotating sleeve (103), the end of the connecting sleeve (101) close to the rotating sleeve (103) is provided with a connecting hole, the end of the rotating sleeve (103) is provided with a connecting shaft, the connecting shaft extends into the connecting hole and is key connected with the connecting hole, the end of the connecting shaft is provided with a limiting disc three (102), the limiting disc three (102) can abut against the bottom of the hole of the connecting sleeve (101).

7. The adjustable roll coupling assembly of claim 1, wherein, The lock nut (4) is provided with a lock top screw in the radial direction thereof, and the lock top screw can abut against the threaded section (202).

8. The adjustable roll coupling assembly of claim 1, wherein, The rotating screw sleeve (3) is provided with a screw hole in the radial direction thereof, and the screw hole is used for connecting with a screw rod.

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