Self-adaptive expansion roller assembly

Abstract

The roller assembly comprises a rotating shaft, a movable positioning block and a first bearing, a cylindrical groove matched with the diameter of the first bearing is formed in the movable positioning block, a through hole is formed in the movable positioning block, and the through hole is communicated with the cylindrical groove. The end face of the outer side of the first bearing is in contact connection with the cylindrical groove, the rotating shaft penetrates through the through hole and then is connected with an inner ring of the first bearing in an inserted mode, two first clamping pieces are further arranged on the rotating shaft, and the movable positioning block is located between the two first clamping pieces. By arranging the movable positioning block, the first bearing can move in the cylindrical groove, the first bearing and the cylindrical groove can be prevented from being locked or separated from each other, the rotating shaft is connected with the inner ring of the first bearing to keep the rotating effect, and the transmission efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission equipment, in particular to an adaptively expanding and contracting roller assembly. Background Art

[0002] Roller assemblies are used in transportation equipment to realize material sheet conveying. However, in electroplating production, the material sheets need to be conveyed at a specific temperature during transportation. However, due to temperature reasons, the shaft and bearings are prone to heat generation and cold contraction reactions. At the same time, there are the following problems: If the shaft is in a high temperature environment, the shaft expands and has an interference fit with the connector, causing it to lock and become stuck. The shaft cannot rotate, affecting the transmission effect; or the shaft directly pushes the connector open, causing it to fall off the equipment and fail to achieve transmission. Utility Model Content

[0003] The purpose of the utility model is to provide a self-adaptive expansion and contraction roller assembly, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adaptive expansion and contraction roller assembly, comprising a rotating shaft, a movable positioning block and a first bearing, the movable positioning block is provided with a cylindrical groove adapted to the bearing diameter, the movable positioning block is provided with a through hole, the through hole and the cylindrical groove are interconnected, the outer end face of the first bearing is in contact with and connected to the cylindrical groove, the rotary pull is inserted into the inner ring of the first bearing after passing through the through hole, two first clamping pieces are also provided on the rotating shaft, and the movable positioning block is located between the two first clamping pieces.

[0005] Preferably, a fixed installation block, a synchronous gear and a transmission gear are provided at one end of the rotating shaft away from the movable positioning block, and a second bearing inner ring is provided in the fixed installation block and fixedly connected to the rotating shaft.

[0006] Preferably, two second clamping members are further provided on the rotating shaft, and the fixed mounting block, the synchronous gear and the transmission gear are located between the two second clamping members.

[0007] Preferably, a slot matching the second locking member is provided on the rotating shaft, the second locking member is in a "C" shape, and the second locking member is embedded in the corresponding slot.

[0008] Preferably, a slot matching the first locking member is provided on the rotating shaft, the first locking member is in a "C" shape, and the first locking member is embedded in the corresponding slot.

[0009] Preferably, a plurality of rollers are evenly arranged on the rotating shaft, and the plurality of rollers are located between the fixed positioning block and the movable positioning block.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model provides a movable positioning block, a cylindrical groove provided in the movable positioning block and a first bearing provided in the cylindrical groove, so that the first bearing can move in the cylindrical groove, thereby preventing the first bearing and the cylindrical groove from being locked or separated from each other, and the rotating shaft is connected to the inner ring of the first bearing to maintain the rotation effect, thereby ensuring the transmission efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0015] Figure 4 for Figure 2 A partial enlarged view of point B in the middle. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1 to Figure 2 The utility model provides an embodiment: an adaptive expansion and contraction roller assembly, including a rotating shaft 1, a movable positioning block 2 and a first bearing 3, a cylindrical groove 4 adapted to the diameter of the first bearing 3 is arranged in the movable positioning block 2, a through hole 5 penetrating the cylindrical groove 4 is arranged on the movable positioning block 2, the cylindrical groove 4 and the through hole 5 are communicated with each other, the outer end surface of the first bearing 3 is in contact with the inner end surface of the cylindrical groove 4, under high temperature conditions, the expansion of the rotating shaft 1 can drive the first bearing 3 to slide in the cylindrical groove 4, and the rotating shaft 1 passes through the through hole 5 and is in contact with the first bearing 3 inner ring plug-in, through the above structure, can provide the first bearing 3 with movable space, prevent the shaft 1, the first bearing 3 and the movable positioning block 5 from being locked or ejected, the shaft 1 is also provided with two first clamping members 6, the movable positioning block 2 is located between the two first clamping members 6, the two first clamping members 6 are used to limit the movable positioning block 2 or the first bearing 3, prevent the movable positioning block 2 or the first bearing 3 from being displaced to the middle of the shaft 1 or prevent the movable positioning block 2 or the first bearing 3 from being separated from the end of the shaft 1, to ensure stable operation and work efficiency.

[0018] The end of the rotating shaft 1 away from the movable positioning block 2 is provided with a fixed installation block 7, a synchronous gear 8 and a transmission gear 9. The fixed installation block 7 is provided with a second bearing 10 inner ring fixedly connected to the rotating shaft 1.

[0019] The movable positioning block 2 and the fixed mounting block 7 are respectively installed on both sides of the device, and the first bearing 3 and the second bearing 10 are coaxially arranged to allow the rotating shaft 1 to rotate smoothly.

[0020] Furthermore, the transmission gear 9 is used to connect the driving mechanism, and the driving mechanism can synchronously drive the transmission gear 9, the synchronous gear 8 and the rotating shaft 1 to rotate, and carry the material through the roller 12 arranged on the rotating shaft 1 to realize transmission.

[0021] Furthermore, multiple groups of roller assemblies may be provided, and the multiple groups of roller assemblies may be meshed with multiple synchronous gears 8 via synchronous toothed belts to achieve synchronous rotation of the multiple groups of roller assemblies.

[0022] Two second positioning members 11 are also provided on the rotating shaft 1, and the fixed mounting block 7, the synchronous gear 8 and the transmission gear 9 are located between the two second positioning members 11. The two second positioning members 11 are used to limit the fixed mounting block 7, the synchronous gear 8 and the transmission gear 9 to prevent the fixed mounting block 7, the synchronous gear 8 and the transmission gear 9 from moving to the middle of the rotating shaft 1 or preventing the fixed mounting block 7, the synchronous gear 8 and the transmission gear 9 from detaching from the end of the rotating shaft 1.

[0023] A plurality of slots 13 are provided on the rotating shaft 1, and the plurality of slots 13 are respectively matched with the first locking member 6 and the second locking member 11. The first locking member 6 and the second locking member 11 are both in a "C" shape. The first locking member 6 and the second locking member 11 correspond to the plurality of slots 13 one by one and are embedded and connected, thereby improving the connection stability between the first locking member or the second locking member 11 and the rotating shaft 1.

[0024] The plurality of rollers 12 are located between the fixed positioning block 7 and the movable positioning block 2 . The plurality of rollers 12 are used to carry the material sheet. The plurality of rollers 12 rotate along with the rotating shaft 1 , so as to realize the transmission of the material sheet.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An adaptively expandable and contractible roller assembly, comprising a rotating shaft, a movable positioning block and a first bearing, characterized in that: A cylindrical groove matched with the diameter of the first bearing is arranged in the movable positioning block, a through hole is arranged on the movable positioning block, the through hole and the cylindrical groove are communicated with each other, the outer end face of the first bearing is in contact with and connected with the cylindrical groove, the rotating shaft is inserted into the inner ring of the first bearing after passing through the through hole, two first clamping parts are also arranged on the rotating shaft, and the movable positioning block is located between the two first clamping parts.

2. The adaptive expansion and contraction roller assembly according to claim 1, characterized in that: A fixed installation block, a synchronous gear and a transmission gear are arranged at one end of the rotating shaft away from the movable positioning block, and a second bearing inner ring is arranged in the fixed installation block and fixedly connected to the rotating shaft.

3. The adaptive expansion and contraction roller assembly according to claim 2, characterized in that: Two second clamping parts are also arranged on the rotating shaft, and the fixed installation block, the synchronous gear and the transmission gear are located between the two second clamping parts.

4. The adaptive expansion and contraction roller assembly according to claim 3, characterized in that: The rotating shaft is provided with a slot matched with the second clamping piece, the second clamping piece is in a "C" shape, and the second clamping piece is embedded in the corresponding slot.

5. The adaptive expansion and contraction roller assembly according to claim 1, characterized in that: The rotating shaft is provided with a slot matched with the first clamping piece, the first clamping piece is in a "C" shape, and the first clamping piece is embedded in the corresponding slot.

6. The adaptive expansion and contraction roller assembly according to claim 1, characterized in that: A plurality of rollers are evenly arranged on the rotating shaft, and the plurality of rollers are located between the fixed positioning block and the movable positioning block.

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