Lightweight back-up roll for automobile production line

Abstract

The utility model relates to the technical field of supporting rollers, in particular to a lightweight supporting roller for an automobile production line. Comprising a connecting pipe, a supporting shaft, a synchronous belt wheel, two wheel cores, two bearings and two baffles. Wherein the supporting shaft is coaxially and rotatably arranged in a pipe cavity of the connecting pipe in a sleeved mode, the two wheel cores are detachably arranged outside the two ends of the connecting pipe in a sleeved mode respectively, the synchronous belt wheel is detachably arranged outside the connecting pipe in a sleeved mode, and one end of the synchronous belt wheel abuts against the other end of one wheel core; a groove is formed in the end, away from the connecting pipe, of the wheel core, the bearings are detachably arranged in the groove, and the two bearings at the two ends limit the two ends of the supporting shaft correspondingly. The baffle is detachably arranged at the end, away from the connecting pipe, of the wheel core, a through hole is formed in the middle of the baffle, and the end of the supporting shaft penetrates through the through hole. The supporting roller can be independently replaced under the condition that the whole supporting roller is not dismantled, so that when the surface of the polyurethane wheel is abraded or aged, only the damaged part needs to be replaced, and unnecessary comprehensive replacement is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of support rollers, in particular to a lightweight support roller for an automobile production line. Background Art

[0002] Support rollers play a critical role in the conveyor system on automotive production lines, transporting the skids that carry automotive parts. Traditional support rollers consist of components such as polyurethane wheels, synchronous pulleys, and steel tubes. These components, typically made of carbon steel, are welded together and then assembled with other components such as shafts and bearings to form a complete support roller.

[0003] However, over long-term use, support rollers face two major challenges: first, wear and aging of the polyurethane wheel surface, which increases resistance and reduces stability during skid movement; second, the tooth profile of the synchronous pulley may become damaged due to long-term operation, affecting transmission efficiency. Because existing designs tightly integrate the polyurethane wheel with other metal components, wear on the polyurethane layer typically requires replacement of multiple components, including the polyurethane wheel, synchronous pulley, and connecting pipe. This not only increases maintenance costs but also wastes resources. Utility Model Content

[0004] The purpose of the utility model is to provide a lightweight support roller for an automobile production line in view of the deficiencies in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The utility model provides a lightweight support roller for an automobile production line, comprising: a connecting pipe, a support shaft, a synchronous pulley, two wheel cores, two bearings, and two baffles;

[0007] The support shaft is coaxially rotatably sleeved in the tube cavity of the connecting tube, the two wheel cores are detachably sleeved outside the two ends of the connecting tube, and the synchronous pulley is detachably sleeved outside the connecting tube, with one end of the synchronous pulley abutting against the other end of one of the wheel cores;

[0008] Among them, a groove is provided at the end of the wheel core away from the connecting tube, and the bearing is detachably arranged in the groove, and the two bearings at both ends respectively limit the two ends of the support shaft; the baffle is detachably arranged at the end of the wheel core away from the connecting tube, and a through hole is provided in the middle of the baffle, and the end of the support shaft is arranged through the through hole; the outer surface of the wheel core is covered with a polyurethane layer.

[0009] Furthermore, it also includes: two retaining rings;

[0010] Wherein, the retaining ring is detachably arranged between the bearing and the support shaft.

[0011] Furthermore, a retaining ring is arranged at one end of the bearing close to the baffle.

[0012] Furthermore, the outer surface of the connecting tube is provided with a plurality of limiting grooves along the circumferential direction of the connecting tube, and the limiting grooves extend along the axial direction of the connecting tube; the inner surface of the wheel core is fixedly provided with a plurality of first protrusions matching the plurality of limiting grooves along the circumferential direction of the wheel core.

[0013] Furthermore, a plurality of second protrusions are fixedly provided on the inner surface of the synchronous pulley along the circumferential direction of the synchronous pulley. The second protrusions extend along the axial direction of the synchronous pulley, and the second protrusions match the limiting grooves.

[0014] Furthermore, the outer surface of the synchronous pulley has a plurality of gear teeth along the circumferential direction of the synchronous pulley.

[0015] The present invention adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0016] The utility model covers the outer surface of the wheel core with a polyurethane layer, and optimizes the connection between the synchronous pulley, wheel core, bearing, and baffle, so that the support roller can be replaced separately without removing the entire support roller. In this way, when the surface of the polyurethane wheel is worn or aged, or any other part is damaged, only the damaged part needs to be replaced, avoiding unnecessary comprehensive replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the axial side explosion structure of the utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the utility model;

[0019] The reference numerals include:

[0020] Connecting pipe 1; synchronous pulley 2; polyurethane layer 3; wheel core 4; baffle 5; support shaft 6; retaining ring 7; bearing 8. DETAILED DESCRIPTION

[0021] The specific implementation of the present utility model will be described in detail below.

[0022] Unless otherwise defined, the technical or scientific terms used in the claims and the specification shall have the common meanings understood by persons having ordinary skills in the technical field to which the present invention belongs.

[0023] The words "include" or similar used in the description and claims of this utility model patent application mean that the items before "include" include the items listed after "include" or their equivalents, and do not exclude other items.

[0024] The numerical values ​​mentioned in the present invention include all numerical values ​​that increase by one unit from the lowest to the highest, assuming that there are at least two units between any lower value and the higher value. For example, if a component or a physical quantity is said to be from 1 to 100, preferably from 10 to 90, and most preferably from 20 to 80, it is intended to express that values ​​such as 5 to 95, 14 to 76, 23 to 67, 32 to 58, and 41 to 49 are clearly listed in this specification; for values ​​less than 1, 0.0001, 0.001, 0.01, or 0.1 are considered to be more appropriate units. The above examples are for illustrative purposes only. In fact, all numerical combinations between the lowest value and the highest value listed are considered to be clearly listed in this specification in a similar manner.

[0025] Example

[0026] This embodiment provides a lightweight support roller for an automobile production line, comprising: a connecting tube 1, a support shaft 6, a synchronous pulley 2, two wheel cores 4, two bearings 8, two retaining rings 7, and two baffles 5;

[0027] wherein, the support shaft 6 is coaxially rotatably sleeved in the tubular cavity of the connecting tube 1, the two wheel cores 4 are respectively detachably sleeved on the outside of the two ends of the connecting tube 1 by screws, and the synchronous pulley 2 is detachably sleeved on the outside of the connecting tube 1 by screws, and one end of the synchronous pulley 2 abuts against the other end of one of the wheel cores 4; wherein, a groove is provided at the end of the wheel core 4 away from the connecting tube 1, and the bearing 8 is detachably arranged in the groove, and the two bearings 8 at both ends respectively limit the two ends of the support shaft 6; the baffle 5 is detachably arranged at the end of the wheel core 4 away from the connecting tube 1 by screws, a through hole is provided in the middle of the baffle 5, and the end of the support shaft 6 is arranged through the through hole; the outer surface of the wheel core 4 is covered with a polyurethane layer 3, and the retaining ring 7 is detachably arranged between the bearing 8 and the support shaft 6, and the retaining ring 7 is arranged at the end of the bearing 8 close to the baffle 5.

[0028] Among them, the outer surface of the connecting tube 1 is provided with a plurality of limiting grooves along the circumferential direction of the connecting tube 1, and the limiting grooves extend along the axial direction of the connecting tube 1; the inner surface of the wheel core 4 is fixedly provided with a plurality of first protrusions matching the plurality of limiting grooves along the circumferential direction of the wheel core 4, and the connecting tube 1 and the synchronous pulley 2 are snap-connected through the cooperation of the first protrusions and the limiting grooves.

[0029] Among them, the inner surface of the synchronous pulley 2 is fixedly provided with a plurality of second protrusions along the circumferential direction of the synchronous pulley 2, the second protrusions extend along the axial direction of the synchronous pulley 2, the second protrusions match the limiting grooves, and the cooperation between the second protrusions and the limiting grooves is a snap-fit ​​connection.

[0030] The outer surface of the synchronous pulley 2 has a plurality of gear teeth along the circumferential direction of the synchronous pulley 2 .

[0031] To summarize, the present invention covers the outer surface of the wheel core with a polyurethane layer, and optimizes the connection method between the synchronous pulley, the wheel core, the bearing, and the baffle, so that the support roller can be replaced individually without dismantling the entire support roller. In this way, when the surface of the polyurethane wheel is worn or aged, or any other part is damaged, only the damaged part needs to be replaced, avoiding unnecessary comprehensive replacement.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the implementation method and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A lightweight support roller for an automobile production line, characterized in that: include: A connecting pipe (1), a supporting shaft (6), a synchronous pulley (2), two wheel cores (4), two bearings (8), and two baffles (5); The support shaft (6) is coaxially rotatably sleeved in the tube cavity of the connecting tube (1), the two wheel cores (4) are detachably sleeved outside the two ends of the connecting tube (1), the synchronous pulley (2) is detachably sleeved outside the connecting tube (1), and one end of the synchronous pulley (2) is in contact with the other end of one of the wheel cores (4); The wheel core (4) is provided with a groove at one end away from the connecting tube (1), the bearing (8) is detachably arranged in the groove, and the two bearings (8) at both ends respectively limit the two ends of the support shaft (6); the baffle (5) is detachably arranged at one end of the wheel core (4) away from the connecting tube (1), a through hole is provided in the middle of the baffle (5), and the end of the support shaft (6) is arranged to pass through the through hole; the outer surface of the wheel core (4) is covered with a polyurethane layer (3).

2. The lightweight support roller for automobile production line according to claim 1, characterized in that: Also includes: Two retaining rings (7); Wherein, the retaining ring (7) is detachably arranged between the bearing (8) and the support shaft (6).

3. The lightweight support roller for automobile production line according to claim 2, characterized in that: The retaining ring (7) is arranged at one end of the bearing (8) close to the baffle (5).

4. The lightweight support roller for automobile production line according to claim 1, characterized in that: The outer surface of the connecting tube (1) is provided with a plurality of limiting grooves along the circumferential direction of the connecting tube (1), and the limiting grooves extend along the axial direction of the connecting tube (1); the inner surface of the wheel core (4) is fixedly provided with a plurality of first protrusions matching the plurality of limiting grooves along the circumferential direction of the wheel core (4).

5. The lightweight support roller for automobile production line according to claim 4, characterized in that: The inner surface of the synchronous pulley (2) is fixedly provided with a plurality of second protrusions along the circumferential direction of the synchronous pulley (2), the second protrusions extending along the axial direction of the synchronous pulley (2), and the second protrusions matching the limiting grooves.

6. The lightweight support roller for automobile production line according to claim 1, characterized in that: The outer surface of the synchronous pulley (2) has a plurality of gear teeth along the circumferential direction of the synchronous pulley (2).

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