Transmission installation mechanism of paper tube machine

Abstract

The transmission installation mechanism of the paper tube machine includes a rotatable rotating shaft, which is rotatably connected to a support seat, and the rotating shaft is fixedly connected to a belt hub by an expansion sleeve; the belt hub includes a cylinder, and a mounting portion for mounting with the rotating shaft is provided inside the cylinder, and the height of the mounting portion is less than the height of the cylinder; the expansion sleeve includes an outer sleeve, an upper inner sleeve and a lower inner sleeve, and the side wall of the outer sleeve is provided with a longitudinal seam running through from top to bottom, the outer sleeve is in the mounting portion, and the outer sleeve is arranged outside the upper inner sleeve and the lower inner sleeve, the upper inner sleeve and the lower inner sleeve are sleeved on the rotating shaft and are respectively distributed at the upper and lower ends of the outer sleeve, the outer side surfaces of the inner sleeve and the outer side surfaces of the lower inner sleeve are respectively inclined surfaces, and the upper inner sleeve and the lower inner sleeve are locked by fasteners and brought close to make the outer sleeve expand, thereby fixing the belt hub and the rotating shaft.

Description

Technical Field

[0001] The utility model relates to a transmission installation mechanism of a paper tube machine. Background Art

[0002] The current structure of paper tube equipment is to use a shaft to connect the belt hub and the motor. The entire transmission structure is fixed on the sprocket box. The sprocket box is connected to the frame through a flange. The rotating joint of the sprocket box is two flanges, which has defects such as large rotational friction and inconvenient installation.

[0003] During the rotation of the belt hub of the paper tube machine, the belt hub and the main drive shaft adopt the method of upper cone sleeve and lower pin. In this method, the pin is easily damaged and the belt hub is difficult to disassemble. The bearing distance is too short, the belt pressure distance is far, and the bending moment of the bearing end cover and the main drive shaft is relatively large, which is easy to be damaged, resulting in the above defects. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a transmission installation mechanism for a paper tube machine.

[0005] The technical solution adopted by the utility model is: the transmission installation mechanism of the paper tube machine includes a rotatably arranged rotating shaft, the rotating shaft is rotatably connected with the supporting seat, and the rotating shaft is fixedly connected with the belt hub by adopting an expansion sleeve; the belt hub includes a cylinder, and the interior of the cylinder is provided with a mounting portion for mounting with the rotating shaft, and the height of the mounting portion is less than the height of the cylinder; the expansion sleeve includes an outer sleeve, an upper inner sleeve and a lower inner sleeve, and the side wall of the outer sleeve is provided with a longitudinal seam running through from top to bottom, the outer sleeve is in the mounting portion, and the outer sleeve is arranged outside the upper inner sleeve and the lower inner sleeve, the upper inner sleeve and the lower inner sleeve are sleeved on the rotating shaft and are respectively distributed at the upper and lower ends of the outer sleeve, the outer side surface of the inner sleeve and the outer side surface of the lower inner sleeve are respectively inclined surfaces, and the upper inner sleeve and the lower inner sleeve are locked by fasteners and approached to make the outer sleeve expand so as to fix the belt hub and the rotating shaft.

[0006] It also includes a flange, which is rotatably connected to the rotating shaft. The flange is located between the belt hub and the support seat. Bearings are distributed at both ends of the flange, and the rotating shaft and the flange are rotatably connected through the bearings.

[0007] Wherein, a bushing is arranged between the two bearings.

[0008] There is a space between the lower end surface of the mounting portion and the lower end surface of the cylinder body for the upper end of the flange to extend into.

[0009] Compared with the prior art, the beneficial effects of the present invention are: the transmission installation mechanism of the paper tube machine in the present invention is simple and reliable to install, the length of the rotating shaft can be longer, and the operation is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0011] The present invention will be further described below with reference to the accompanying drawings and by way of embodiments.

[0012] like Figure 1 As shown, the transmission installation mechanism of the paper tube machine in this embodiment includes a rotatable rotating shaft 1, which is rotatably connected to the support seat 2, and the rotating shaft 1 is fixedly connected to the belt hub 3 by an expansion sleeve 4; the belt hub 3 includes a cylinder 31, and the interior of the cylinder 31 is provided with a mounting portion 32 for mounting with the rotating shaft 1, and the height of the mounting portion 32 is less than the height of the cylinder 31; the expansion sleeve 4 includes an outer sleeve 43, an upper inner sleeve 41 and a lower inner sleeve 42, and the side wall of the outer sleeve 43 is provided with a longitudinal seam running through the upper and lower sleeves, the outer sleeve 43 is in the mounting portion 32, the outer sleeve 43 is arranged outside the upper inner sleeve 41 and the lower inner sleeve 42, the upper inner sleeve 41 and the lower inner sleeve 42 are sleeved on the rotating shaft 1 and are respectively distributed at the upper and lower ends of the outer sleeve 43, the outer side surfaces of the upper inner sleeve and the outer side surfaces of the lower inner sleeve are respectively inclined surfaces 33, the upper inner sleeve 41 and the lower inner sleeve 42 are locked by fasteners and approached to expand the outer sleeve 43, thereby fixing the belt hub 3 to the rotating shaft 1. In this embodiment, the belt hub 3 and the rotating shaft 1 are connected by an expansion sleeve 4. After installation, the structure is stable and reliable and easy to disassemble.

[0013] As a preferred embodiment, a flange 5 is further included, the flange 5 is rotatably connected to the rotating shaft 1, the flange 5 is located between the belt hub 3 and the support seat 2, bearings 51 are provided at both ends of the flange 5, and the rotating shaft 1 is rotatably connected to the flange 5 through the bearings 51. In this embodiment, after the flange 5 is arranged outside the rotating shaft 1, the flange 5 and the bearing 51 are fixed to each other, which can greatly reduce the adverse disturbance of the rotating shaft 1, and the length of the rotating shaft 1 can be made longer, so as to facilitate the installation of the belt hub 3.

[0014] As a preferred embodiment, a bushing 52 is provided between the two bearings 51 .

[0015] As a preferred embodiment, there is a space between the lower end surface of the mounting portion 32 and the lower end surface of the cylinder 31 for the upper end of the flange 5 to extend into. The flange 5 and the belt hub 3 form a nested structure, which can reduce the space.

Claims

1. The transmission installation mechanism of the paper tube machine is characterized by: It includes a rotating shaft that is rotatably arranged, the rotating shaft is rotatably connected to the support seat, and the rotating shaft is fixedly connected to the belt hub by an expansion sleeve; The belt hub comprises a cylinder, the interior of which is provided with a mounting portion for mounting with the rotating shaft, the height of the mounting portion being smaller than the height of the cylinder; The expansion sleeve includes an outer sleeve, an upper inner sleeve and a lower inner sleeve. The side wall of the outer sleeve is provided with a longitudinal seam running through from top to bottom. The outer sleeve is in the mounting portion, and the outer sleeve is arranged outside the upper inner sleeve and the lower inner sleeve. The upper inner sleeve and the lower inner sleeve are sleeved on the rotating shaft and are respectively distributed at the upper and lower ends of the outer sleeve. The outer side surfaces of the inner sleeve and the lower inner sleeve are respectively inclined surfaces. The upper inner sleeve and the lower inner sleeve are locked with fasteners and brought close to make the outer sleeve expand, thereby fixing the belt hub and the rotating shaft.

2. The transmission installation mechanism of the paper tube machine according to claim 1, characterized in that: It also includes a flange, which is rotatably connected to the rotating shaft. The flange is located between the belt hub and the support seat. Bearings are distributed at both ends of the flange, and the rotating shaft and the flange are rotatably connected through the bearings.

3. The transmission installation mechanism of the paper tube machine according to claim 1, characterized in that: A bushing is arranged between the two bearings.

4. The transmission installation mechanism of the paper tube machine according to claim 1, characterized in that: There is a space between the lower end surface of the mounting portion and the lower end surface of the cylinder body for the upper end of the flange to extend into.

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