A precision quick-installation drive roller

Abstract

The present invention relates to the technical field of drive rollers, in particular to a precision quick-installation drive roller, which includes a drive roller main body, a drive device, and a positioning device. The positioning device is installed in the drive device, and the drive devices are symmetrically arranged at both ends of the drive roller main body. The present invention utilizes that the drive device can be retracted into the drive roller main body. When installing in a narrow area, it is not necessary to disassemble other components. Only by rotating the second telescopic rod, the drive device can be retracted into the drive roller main body, thereby completing the disassembly of the present invention. At the same time, since the drive roller main body is easily worn, the separable structure of the drive device and the drive roller main body can be used to conveniently replace the new drive roller main body, improve work efficiency, and ensure processing quality. During use, the first telescopic rod and the second telescopic rod vertically arranged on the positioning device are used to stably fix the drive device in the drive roller main body, improving the use safety and convenience, and having broad application prospects.

Description

Technical Field

[0001] The present invention relates to the technical field of driving rollers, and particularly to a precision quick - installation driving roller. Background Art

[0002] Driving rollers are commonly used for transmitting workpieces. Generally, the structure is integral, that is, rotating mechanisms are fixedly connected to both ends of the driving roller. When the driving roller is worn and needs to be replaced, the main body of the driving roller and the relevant rotating mechanisms need to be removed together, and then a new transmission roller is replaced. Thus, the production cost is greatly increased; while using a separated structure will result in the structure of the main body of the driving roller being too complex. During the disassembly process, especially in the narrow space inside a machine tool, the rotating structure still needs to be disassembled first, which leads to too long maintenance time, seriously affecting the processing efficiency and further increasing the production cost.

[0003] Therefore, providing a precision quick - installation driving roller that enables the driving roller to be quickly replaced in a narrow space, reduces the removal of other components, and improves production efficiency and equipment utilization rate is what those skilled in the art need to do. Summary of the Invention

[0004] The object of the present invention is to provide a precision quick - installation driving roller to solve the technical problems in the prior art that the disassembly of the driving roller is complex, the equipment utilization rate is low, other components need to be removed in a narrow space, and the processing efficiency is affected.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a precision quick - installation driving roller, including a driving roller main body, a driving device, and a positioning device. The positioning device is installed inside the driving device. The driving devices are symmetrically arranged at both ends of the driving roller main body. There is a cavity formed between the two driving devices and the driving roller main body. The driving device is slidably arranged in the cavity; the driving device includes a telescopic slider. One side surface of the telescopic slider is fixedly connected with a connecting shaft. First positioning holes and second positioning holes are uniformly arranged on the circumferential side wall of the telescopic slider; a first telescopic rod is slidably arranged inside the telescopic slider, an elastic component is fixedly connected in the second positioning hole, a threaded hole is arranged inside the connecting shaft, and a groove is arranged on the surface of the telescopic slider away from the connecting shaft. The threaded hole is communicated with the groove; the positioning device includes a first telescopic rod and a second telescopic rod. The second telescopic rod is installed in the threaded hole. One end of the second telescopic rod passes through the threaded hole and is detachably connected with a positioning block. The circumferential side surface of the positioning block abuts against one end of the first telescopic rod. Part of the circumferential side surface of the positioning block is a conical surface, and the end of the first telescopic rod abutting against the positioning block is an arc surface. A spring is arranged between the first telescopic rod and the first positioning hole.

[0006] Further, a track is arranged on the inner side wall of the driving roller main body. Guide bosses are uniformly arranged on the circumferential side surface of the telescopic slider. The guide bosses are slidably connected in the track.

[0007] Further, the main body of the drive roller is in the shape of a hollow cylinder, and an end cover is detachably connected between the main body of the drive roller and the telescopic slider.

[0008] Further, the side surface of the main body of the drive roller is coplanar with the side surface of the telescopic slider.

[0009] Further, the axis of the main body of the drive roller coincides with the axis of the telescopic slider, and the axis of the telescopic slider coincides with the axis of the connecting shaft.

[0010] Further, the axis of the first telescopic rod is perpendicular to the axis of the second telescopic rod.

[0011] Further, the second telescopic rod is provided with an external thread, the threaded hole is provided with an internal thread, and the second telescopic rod is engaged with the threaded hole.

[0012] Further, the first positioning hole and the second positioning hole are arranged at intervals, and the axes of the first positioning hole and the second positioning hole are coplanar.

[0013] Further, the elastic member is a ball plunger.

[0014] The beneficial effects of the present invention are as follows:

[0015] (1) In the present invention, the drive device can be retracted into the main body of the drive roller. When installing in a narrow area, it is not necessary to disassemble other components. Only by rotating the second telescopic rod, the drive device can be retracted into the main body of the drive roller, thereby completing the disassembly of the present invention; at the same time, since the main body of the drive roller is easily worn, the separable structure of the drive device and the main body of the drive roller can be used to conveniently replace a new main body of the drive roller, improve work efficiency, and ensure processing quality; during use, the first telescopic rod and the second telescopic rod arranged vertically on the positioning device are used to stably fix the drive device in the main body of the drive roller, improve the safety and convenience of use, and have broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of the precision quick-installation drive roller of the present invention.

[0017] Figure 2 is Figure 1 the exploded view of

[0018] Figure 3 is a left view of the precision quick-installation drive roller of the present invention.

[0019] Figure 4 is Figure 3 the sectional view taken along line A-A in

[0020] Figure 5 is a top view of the precision quick-installation drive roller of the present invention.

[0021] Figure 6Yes Figure 5 Sectional view taken along line B-B in the middle

[0022] The markings of the components in the attached drawings are as follows: 11, main body of the drive roller; 12, end cover; 13, track; 20, drive device; 21, connecting shaft; 22, telescopic slider; 23, guiding boss; 24, threaded hole; 25, groove; 26, first positioning hole; 27, second positioning hole; 30, positioning device; 31, positioning block; 32, first telescopic rod; 33, spring; 34, second telescopic rod; 35, elastic member. Detailed implementation manners

[0023] Now, the present invention will be described in detail with reference to the attached drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present invention in a schematic manner, so it only shows the components related to the present invention.

[0024] Please refer to Figure 1 、 Figure 2 , the present invention provides a precision quick-installation drive roller, including a main body 11 of the drive roller, a drive device 20 and a positioning device 30. The positioning device 30 is installed in the drive device 20, and the drive device 20 is slidably arranged at both ends of the main body 11 of the drive roller. The present invention utilizes the relative or opposite sliding of the drive device 20 at both ends of the main body 11 of the drive roller, thereby achieving a telescopic effect and facilitating installation and disassembly.

[0025] Further, the drive device 20 includes a telescopic slider 22. One side surface of the telescopic slider 22 is fixedly connected with a connecting shaft 21. The telescopic slider 22 and the connecting shaft 21 are coaxially arranged. The connecting shaft 21 is used to externally connect a motor (not shown in the figure) to drive the drive device 20 to rotate.

[0026] Further, the main body 11 of the drive roller is in a hollow cylindrical shape. An end cover 12 is detachably connected between the main body 11 of the drive roller and the telescopic slider 22. Preferably, the side surface of the main body 11 of the drive roller and the side surface of the telescopic slider 22 are coplanar. In this embodiment, an O-ring (not marked in the figure) is provided on the end cover 12. The O-ring is used to make an interference fit between the end cover 12 and the main body 11 of the drive roller, and at the same time, the O-ring is used to make an interference fit between the end cover 12 and the telescopic slider 22, thereby improving the sealing effect.

[0027] Further, a track 13 is provided on the inner side wall of the main body 11 of the drive roller. Guiding bosses 23 are uniformly arranged on the circumferential side surface of the telescopic slider 22. The guiding bosses 23 are slidably connected in the track 13. In this embodiment, the guiding bosses 23 and the track 13 are used in cooperation to limit the rotation of the drive device 20, so that the drive device 20 can move along the axis direction of the main body 11 of the drive roller. Preferably, the axes of the main body 11 of the drive roller and the telescopic slider 22 coincide.

[0028] In another embodiment, the telescopic slider 22 is in the shape of a regular polygon and is slidably connected within the main body of the transmission roller 11. The outer contour of the regular polygon is used to automatically limit the rotation of the transmission device 20, reducing the track 13 and lowering the manufacturing cost.

[0029] Please refer to Figure 2 、 Figure 3 、 Figure 4 , a threaded hole 24 is provided in the connecting shaft 21, and a groove 25 is provided on the surface of the telescopic slider 22 away from the connecting shaft 21. The threaded hole 24 communicates with the groove 25.

[0030] Furthermore, the positioning device 30 includes a first telescopic rod 32 and a second telescopic rod 34. The first telescopic rod 32 is slidably disposed on the telescopic slider 22, and the second telescopic rod 34 is installed in the threaded hole 24; preferably, the axis of the first telescopic rod 32 is perpendicular to the axis of the second telescopic rod 34.

[0031] Furthermore, an external thread is provided on the second telescopic rod 34, and an internal thread is provided in the threaded hole 24. The second telescopic rod 34 meshes with the threaded hole 24.

[0032] In this embodiment, a spring (not shown in the figure) is provided between the second telescopic rod 34 and the threaded hole 24. When the second telescopic rod 34 moves inward, the spring is compressed, and when the second telescopic rod 34 moves outward, the spring resets. The spring is used to increase the pre-tightening force and locking effect of the second telescopic rod 34.

[0033] Furthermore, a shoulder (not shown in the figure) is provided at one end of the second telescopic rod 34. The shoulder end of the second telescopic rod 34 passes through the threaded hole 24 and is detachably connected with a positioning block 31. Specifically, one side surface of the positioning block 31 abuts against the side wall of the shoulder of the second telescopic rod 34, and a snap ring (not shown in the figure) is connected in a clamping manner on the other side surface of the positioning block 31. At the same time, the surface of the positioning block 31 that abuts against the shoulder of the second telescopic rod 34 also abuts against the bottom wall of the groove 25.

[0034] In this embodiment, the positioning block 31 is fixedly connected to the end of the second telescopic rod 34 by using a snap ring (not shown in the figure), and the positioning block 31 can also be fixedly connected to the end of the second telescopic rod 34 by using a pin. Preferably, the side surface of the positioning block 31, the bottom wall of the groove 25, and the side wall of the shoulder of the second telescopic rod 34 are coplanar.

[0035] Please refer to Figure Figure 4 、 Figure 5 、 Figure 6, the circumferential side of the positioning block 31 abuts against one end of the first telescopic rod 32. A part of the circumferential side of the positioning block 31 is a conical surface. In this embodiment, the end of the circumferential side of the positioning block 31 close to the bottom wall of the groove 25 is a conical surface. When the second telescopic rod 34 moves inward, the positioning block 31 moves inward together, and the first telescopic rod 32 moves downward; when the second telescopic rod 34 moves outward, the positioning block 31 moves outward together, and the first telescopic rod 32 moves upward.

[0036] In another embodiment, the end of the circumferential side of the positioning block 31 away from the bottom wall of the groove 25 is a conical surface, that is, when the second telescopic rod 34 moves inward, the positioning block 31 moves inward together, and the first telescopic rod 32 moves upward; when the second telescopic rod 34 moves outward, the positioning block 31 moves outward together, and the first telescopic rod 32 moves downward.

[0037] Further, first positioning holes 26 are uniformly arranged on the circumferential side wall of the telescopic slider 22, and the first telescopic rod 32 is slidably arranged in the first positioning holes 26.

[0038] Further, the end of the first telescopic rod 32 abutting against the positioning block 31 is an arc surface. Preferably, a ball (not shown in the figure) is snap-connected to the end of the first telescopic rod 32 abutting against the positioning block 31; a spring 33 is arranged between the first telescopic rod 32 and the first positioning hole 26.

[0039] The present invention uses the positioning block 31 with a conical surface to move the first telescopic rod 32 up and down in the first positioning hole 26. The specific implementation method is as follows:

[0040] When the first positioning hole 26 moves to the track 13, rotate the second telescopic rod 34 outward, and the positioning block 31 moves outward together. The first telescopic rod 32 moves upward and makes one end of the first telescopic rod 32 snap-connected in the track 13, so that the telescopic slider 22 is fixedly connected in the transmission roller main body 11.

[0041] When it is necessary to remove the telescopic slider 22, rotate the second telescopic rod 34 inward, and the positioning block 31 moves inward together. The first telescopic rod 32 moves downward under the action of the spring 33 and makes one end of the first telescopic rod 32 retract into the first positioning hole 26, so that the telescopic slider 22 can slide in the transmission roller main body 11.

[0042] Further, second positioning holes 27 are uniformly arranged on the circumferential side wall of the telescopic slider 22, and elastic members 35 are fixedly connected in the second positioning holes 27; further, the first positioning holes 26 and the second positioning holes 27 are arranged at intervals, and the axes of the first positioning holes 26 and the second positioning holes 27 are coplanar.

[0043] In this embodiment, the elastic member 35 is a ball head plunger. Specifically, the roller of the ball head plunger protrudes from the circumferential side wall of the telescopic slider 22. When the telescopic slider 22 moves along the axis of the transmission roller main body 11, the roller of the ball head plunger is squeezed and pressed into the interior of the ball head plunger. When the second positioning hole 27 moves to the track 13, the roller in the ball head plunger will protrude and be embedded in the track 13, thereby completing the pre-positioning. By making the axes of the first positioning hole 26 and the second positioning hole 27 coplanar, the first positioning hole 26 and the track 13 can be accurately positioned, improving the accuracy and convenience of the positioning of the present invention.

[0044] In another embodiment, the elastic member 35 is a spring. The spring abuts against the roller, and the roller is embedded in the second positioning hole 27. During the movement of the telescopic slider 22, the roller is squeezed and pressed into the second positioning hole 27. When the second positioning hole 27 moves to the track 13, the roller will protrude and be embedded in the track 13, thereby completing the pre-positioning. When the telescopic slider 22 continues to move, the roller will be squeezed and retracted into the second positioning hole 27 again, so that the telescopic slider 22 can continue to telescopically move within the transmission roller main body 11. The present invention uses the elastic member 35 to provide positioning for the movement of the telescopic slider 22, which can not only accurately and quickly align the first positioning hole 26 with the track 13, but also ensure the telescopic distance of the telescopic slider 22, improving the practicability of the present invention.

[0045] Please refer to again Figure 4 , the transmission devices 20 are symmetrically arranged at both ends of the transmission roller main body 11, and a cavity is formed between the two transmission devices 20 and the transmission roller main body 11. The transmission devices 20 can be retracted into the cavity. The present invention utilizes that the transmission devices 20 can be retracted into the transmission roller main body 11. When installing in a narrow part, it is not necessary to disassemble other components. Only by rotating the second telescopic rod 34, the transmission devices 20 can be retracted into the transmission roller main body 11, thereby completing the disassembly of the present invention; at the same time, since the transmission roller main body 11 is easily worn, using the separation structure of the transmission devices 20 and the transmission roller main body 11, a new transmission roller main body 11 can be conveniently replaced, improving work efficiency and ensuring processing quality; during use, by using the first telescopic rod 32 and the second telescopic rod 34 vertically arranged on the positioning device 30, the transmission devices 20 can be stably fixed in the transmission roller main body 11, improving the use safety and convenience, and having broad application prospects.

[0046] It will be understood that the present invention is described by way of some embodiments, and those skilled in the art will be aware that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present invention. Additionally, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A precision quick - mounting drive roller, characterized in that, It includes a driving roller main body (11), a driving device (20) and a positioning device (30). The positioning device (30) is installed in the driving device (20). The driving devices (20) are symmetrically arranged at both ends of the driving roller main body (11). A cavity is formed between the two driving devices (20) and the driving roller main body (11). The driving device (20) is slidably arranged in the cavity. The driving device (20) includes a telescopic slider (22). One side of the telescopic slider (22) is fixedly connected with a connecting shaft (21). First positioning holes (26) and second positioning holes (27) are evenly arranged on the circumferential side wall of the telescopic slider (22). A first telescopic rod (32) is slidably arranged in the telescopic slider (22). An elastic member (35) is fixedly connected in the second positioning hole (27). A threaded hole (24) is arranged in the connecting shaft (21). A groove (25) is arranged on the surface of the telescopic slider (22) away from the connecting shaft (21). The threaded hole (24) communicates with the groove (25). The positioning device (30) includes a first telescopic rod (32) and a second telescopic rod (34). The second telescopic rod (34) is installed in the threaded hole (24). One end of the second telescopic rod (34) passes through the threaded hole (24) and is detachably connected with a positioning block (31). The circumferential side surface of the positioning block (31) abuts against one end of the first telescopic rod (32). A part of the circumferential side surface of the positioning block (31) is a conical surface. The end of the first telescopic rod (32) abutting against the positioning block (31) is an arc surface. A ball is embedded and connected at the end of the first telescopic rod (32) abutting against the positioning block (31). A spring (33) is arranged between the first telescopic rod (32) and the first positioning hole (26). The positioning block (31) has a circumferential conical surface and a circumferential plane that can both abut against the arc surface of the first telescopic rod (32). The circumferential plane is located on one side of the circumferential conical surface away from the bottom wall of the groove (25). When the second telescopic rod (34) is moved outward, the arc surface of the first telescopic rod (32) can slide from the circumferential conical surface to the circumferential plane. When the end of the positioning block (31) away from the circumferential plane abuts against the bottom wall of the groove (25), the arc surface of the first telescopic rod (32) moves to the circumferential plane, and one end of the first telescopic rod (32) relative to the arc surface is embedded in the driving roller main body (11). By using the driving device (20) to contract into the driving roller main body (11), when installing in a narrow part, there is no need to disassemble other components. Just by rotating the second telescopic rod (34), the driving device (20) can be contracted into the driving roller main body (11), and then the disassembly is completed.

2. The precision quick - mounting drive roller according to claim 1, wherein, A track (13) is arranged on the inner side wall of the driving roller main body (11). Guide bosses (23) are evenly arranged on the circumferential side surface of the telescopic slider (22). The guide bosses (23) are slidably connected in the track (13).

3. The precision quick-installation drive roller according to claim 2, wherein The driving roller main body (11) is in the shape of a hollow cylinder. An end cover (12) is detachably connected between the driving roller main body (11) and the telescopic slider (22).

4. The precision quick - mounting drive roller according to claim 3, wherein, The side surface of the driving roller main body (11) is coplanar with the side surface of the telescopic slider (22).

5. The precision quick-installation drive roller according to claim 1, characterized in that, The axis of the driving roller main body (11) coincides with the axis of the telescopic slider (22), and the axis of the telescopic slider (22) coincides with the axis of the connecting shaft (21).

6. The precision quick - mounting drive roller according to claim 1, characterized in that, The axis of the first telescopic rod (32) is perpendicular to the axis of the second telescopic rod (34).

7. The precision quick-installation drive roller according to claim 1, wherein, The second telescopic rod (34) is provided with an external thread, and the threaded hole (24) is provided with an internal thread, and the second telescopic rod (34) is engaged with the threaded hole (24).

8. The precision quick-installation drive roller according to claim 1, characterized in that, The first positioning hole (26) and the second positioning hole (27) are arranged at intervals, and the axes of the first positioning hole (26) and the second positioning hole (27) are coplanar.

9. The precision quick-installation drive roller according to claim 1, characterized in that, The elastic member (35) is a ball head plunger.

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