Belt pulley rotation detection device

Abstract

The utility model provides a belt pulley rotation detection device. The belt pulley rotation detection device comprises a workbench, a rotating mechanism, a motor, a lifting mechanism and a belt pulley end face detection mechanism. The rotating mechanism is arranged on the upper surface of the workbench. The motor is arranged on the lower surface of the workbench. A transmission shaft of the motor penetrates through the workbench and then is connected with the rotating mechanism. A to-be-detected belt pulley is placed on the rotating mechanism. The belt pulley end face detection mechanism comprises a first dial indicator and a second dial indicator, the first dial indicator and the second dial indicator are connected to a lifting mechanism, and the lifting mechanism is connected to the upper surface of the workbench. The first dial indicator contacts with the hub end face of the to-be-detected belt pulley, and the second dial indicator contacts with the rim end face of the to-be-detected belt pulley. Compared with the prior art, the method has the advantages that good products and defective products can be effectively identified efficiently and accurately, physical and mental pressure of operators is relieved compared with the prior art, and the quality of the products is guaranteed more effectively.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the pulley detection technical field, especially a pulley rotation detection device. BACKGROUND

[0002] The pulley is the commonly used part in the mechanical transmission system, and the end face runout, the rim end face runout and the outer diameter size precision directly affect the stability and service life of the transmission system. The traditional detection method usually adopts manual operation, and there are problems such as low efficiency, poor precision and insufficient consistency. Therefore, a pulley rotation detection device with high automation degree and high detection precision is needed to meet the needs of modern industrial production. CONTENT OF THE UTILITY MODEL

[0003] In view of the above problems, the purpose of the present application is to provide a pulley rotation detection device, which can realize efficient and accurate identification of good and bad products, and reduce the physical and mental pressure on the operators, and effectively guarantee the quality of the products.

[0004] To achieve the above part or all purposes or other purposes, the present application provides the following technical scheme: a pulley rotation detection device, comprising a workbench, a rotating mechanism, a motor, a lifting mechanism and a pulley end face detection mechanism; the rotating mechanism is arranged on the upper surface of the workbench, and the motor is arranged on the lower surface of the workbench; the transmission shaft of the motor is connected to the rotating mechanism after penetrating through the workbench, and the pulley to be detected is placed on the rotating mechanism; the pulley end face detection mechanism comprises a No. 1 micrometer and a No. 2 micrometer, the No. 1 micrometer and the No. 2 micrometer are connected to the lifting mechanism respectively, and the lifting mechanism is connected to the upper surface of the workbench; the No. 1 micrometer is in contact with the hub end face of the pulley to be detected, and the No. 2 micrometer is in contact with the rim end face of the pulley to be detected.

[0005] Further, the rotating mechanism comprises a chuck, a positioning platform, a rotating positioning reference table, a rotating shaft and a shell arranged coaxially; the chuck, the positioning platform, the rotating positioning reference table and the rotating shaft are connected in sequence, the chuck is in contact with the inner diameter of the hub of the pulley to be detected, and the positioning platform is in contact with the spoke of the pulley to be detected; an annular boss is arranged at the connection between the rotating shaft and the rotating positioning reference table; the circumferential surface of the rotating shaft is provided with the shell, the shell comprises a bottom and a circular ring part, the end surface of the circular ring part is in contact with the rotating positioning reference table, and a No. 1 plane thrust ball bearing is arranged between the inner end surface of the bottom and the rotating positioning reference table, and the No. 1 plane thrust ball bearing is connected with the circumferential surface of the annular boss.

[0006] Further, a platform connecting part is arranged between the rotating mechanism and the workbench, the platform connecting part is fixedly connected with the bottom of the shell, the platform connecting part is provided with a circular through hole, the rotating shaft penetrates through the circular through hole, and the circumferential surface of the rotating shaft is arranged with the second plane thrust ball bearing.

[0007] Further, the lifting mechanism comprises a lifting rod, a track and a sliding block; the track is arranged on the workbench and is perpendicular to the workbench, and the track is connected with the lifting rod through the sliding block.

[0008] Further, a reciprocating air cylinder is further arranged, the reciprocating air cylinder is arranged on the lower surface of the workbench, and the connecting rod of the reciprocating air cylinder is connected with the lifting rod after penetrating through the workbench.

[0009] Further, the lifting rod and the first dial gauge are connected through a first connecting support, the first connecting support is arranged in a Z shape, one end of the first connecting support is connected with the lifting rod, and the other end of the first connecting support is connected with the first dial gauge; the lifting rod and the second dial gauge are connected through a second connecting support, the second connecting support is arranged in a Z shape, one end of the second connecting support is connected with the lifting rod, and the other end of the second connecting support is connected with the second dial gauge.

[0010] Further, a motor connecting part is arranged between the workbench and the motor, and the transmission connecting shaft of the motor is connected with the rotating mechanism after penetrating through the motor connecting part.

[0011] Further, a pulley outer diameter detection mechanism is further arranged, the pulley outer diameter detection mechanism comprises a third dial gauge, and the third dial gauge is in contact with the flange outer diameter of the pulley to be detected.

[0012] Compared with the prior art, the beneficial effects of the utility model are that the rotating mechanism drives the product to rotate by 360 degrees, the product is detected for jumping, thickness and step difference during the rotating process, the hub and the flange of the pulley are synchronously detected, the two dial gauges for detecting the hub and the flange are fixedly connected on the same lifting mechanism, synchronous lifting and descending are realized, system errors caused by asynchronization during lifting and descending of the two dial gauges are avoided, the precision and stability of the rotating detection are realized, and the product can be effectively identified as a good product or a defective product in a high-efficiency and accurate manner during normal cyclic use, the physical and mental pressure of the operator is reduced, and the quality of the product is more effectively guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model;

[0014] Figure 2 It is a front view of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the pulley to be tested;

[0016] Figure 4 This is a partially enlarged schematic diagram of the present invention;

[0017] Figure 5 This is a partially enlarged schematic diagram showing the replacement of the No. 2 planar thrust ball bearing with a radial ball bearing.

[0018] In the diagram: 1. Workbench; 2. Pulley to be tested; 201. Hub; 202. Flange; 203. Spoke; 3. Chuck; 4. Positioning platform; 5. Rotary positioning reference table; 6. Rotary shaft; 7. Housing; 8. No. 1 planar thrust ball bearing; 901. No. 2 planar thrust ball bearing; 902. Radial ball bearing; 10. Platform connection part; 11. Motor; 12. Motor connection part; 13. Lifting rod; 14. Rail; 15. Slider; 16. Reciprocating cylinder; 17. No. 1 dial indicator; 18. No. 2 dial indicator; 19. No. 1 connecting bracket; 20. No. 2 connecting bracket; 21. No. 3 dial indicator. Detailed Implementation

[0019] To make the structure and function of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0020] See appendix Figures 1-5 A pulley rotation detection device includes a worktable 1, a rotating mechanism, a motor 11, a lifting mechanism, and a pulley end face detection mechanism. The rotating mechanism is disposed on the upper surface of the worktable 1, and the motor 11 is disposed on the lower surface of the worktable 1. The drive shaft of the motor 11 passes through the worktable 1 and is connected to the rotating mechanism. The pulley 2 to be tested is placed on the rotating mechanism. The pulley end face detection mechanism includes a first micrometer 17 and a second micrometer 18, which are respectively connected to the lifting mechanism, which is connected to the upper surface of the worktable 1. The first micrometer 17 contacts the end face of the hub 201 of the pulley 2 to be tested, and the second micrometer 18 contacts the end face of the rim 202 of the pulley 2 to be tested.

[0021] Based on the above technical solution, the pulley has two end faces, the hub 201 end face and the rim 202 end face. By setting two dial indicators on the two end faces, the runout, thickness and step difference values ​​are detected to determine whether it is a good product. The two dial indicators are fixed on the same lifting mechanism. The lifting mechanism drives the two dial indicators to rise and fall simultaneously, avoiding system errors caused by the asynchronous rise and fall of the two dial indicators, and can more accurately detect the runout, thickness and step difference values ​​of the two end faces.

[0022] The rotating mechanism includes a chuck 3, a positioning platform 4, a rotating positioning reference table 5, a rotating shaft 6, and a housing 7, all coaxially arranged. The chuck 3, positioning platform 4, rotating positioning reference table 5, and rotating shaft 6 are connected in sequence. The chuck 3 contacts the inner diameter of the hub 201 of the pulley 2 to be tested, and the positioning platform 4 contacts the spokes 203 of the pulley 2 to be tested. An annular boss is provided at the connection between the rotating shaft 6 and the rotating positioning reference table 5. The housing 7 is provided on the circumferential surface of the rotating shaft 6. The housing 7 includes a bottom and an annular portion. The end face of the annular portion contacts the rotating positioning reference table 5. A first planar thrust ball bearing 8 is provided between the inner end face of the bottom and the rotating positioning reference table 5. The first planar thrust ball bearing 8 is connected to the circumferential surface of the annular boss.

[0023] A platform connection part 10 is provided between the rotating mechanism and the worktable 1. The platform connection part 10 is fixedly connected to the bottom of the outer shell 7. The platform connection part 10 is provided with a circular through hole. The rotating shaft 6 passes through the circular through hole. A second planar thrust ball bearing 901 or a radial ball bearing 902 is provided between the circumferential surface of the rotating shaft 6 and the platform connection part 10.

[0024] The lifting mechanism includes a lifting rod 13, a track 14, and a slider 15; the track 14 is set on the workbench 1, the track 14 is perpendicular to the workbench 1, and the track 14 is connected to the lifting rod 13 through the slider 15.

[0025] It also includes a reciprocating cylinder 16, which is disposed on the lower surface of the worktable 1, and the connecting rod of the reciprocating cylinder 16 passes through the worktable 1 and is connected to the lifting rod 13.

[0026] The lifting rod 13 and the first micrometer 17 are connected by a first connecting bracket 19, which is configured in a Z-shape. One end of the first connecting bracket 19 is connected to the lifting rod 13, and the other end is connected to the first micrometer 17. The lifting rod 13 and the second micrometer 18 are connected by a second connecting bracket 20, which is configured in a Z-shape. One end of the second connecting bracket 20 is connected to the lifting rod 13, and the other end is connected to the second micrometer 18.

[0027] A motor connection part 12 is provided between the workbench 1 and the motor 11, and the transmission connection shaft of the motor 11 passes through the motor connection part 12 and is connected to the rotating mechanism.

[0028] It also includes a pulley outer diameter detection mechanism, which includes a No. 3 micrometer 21, which contacts the outer diameter of the rim 202 of the pulley 2 to be tested.

[0029] Working principle: The product is placed on the positioning platform of the rotating mechanism. First, the outer diameter of the pulley is checked by the pulley outer diameter detection mechanism to see if it is qualified. After the detection is qualified, the pulley outer diameter detection mechanism moves away from the pulley to be tested. The lifting mechanism drives two dial indicators to descend to the set position at the same time. At this time, a signal is sent to the motor, and the high-precision rotating mechanism drives the product to start rotating 360°. The pulley end face detection mechanism starts to work, and the two dial indicators simultaneously detect the end face of the hub and the end face of the rim. If the runout, thickness, or step difference exceeds the set value, it is a defective product. The rotation stops at the defective point and a buzzer alarm sounds.

[0030] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

Claims

1. A pulley rotation detection device, characterized in that: The device includes a worktable, a rotating mechanism, a motor, a lifting mechanism, and a pulley end face detection mechanism. The rotating mechanism is located on the upper surface of the worktable, and the motor is located on the lower surface of the worktable. The drive shaft of the motor passes through the worktable and connects to the rotating mechanism, on which the pulley to be tested is placed. The pulley end face detection mechanism includes a first dial indicator and a second dial indicator, which are respectively connected to the lifting mechanism, which is connected to the upper surface of the worktable. The first dial indicator contacts the hub end face of the pulley to be tested, and the second dial indicator contacts the rim end face of the pulley to be tested.

2. The pulley rotation detection device according to claim 1, characterized in that: The rotating mechanism includes a chuck, a positioning platform, a rotating positioning reference table, a rotating shaft, and a housing, all coaxially arranged. The chuck, positioning platform, rotating positioning reference table, and rotating shaft are connected in sequence. The chuck contacts the inner diameter of the hub of the pulley to be tested, and the positioning platform contacts the spokes of the pulley to be tested. An annular boss is provided at the connection between the rotating shaft and the rotating positioning reference table. A housing is provided on the circumferential surface of the rotating shaft. The housing includes a bottom and an annular portion. The end face of the annular portion contacts the rotating positioning reference table. A first planar thrust ball bearing is provided between the inner end face of the bottom and the rotating positioning reference table. The first planar thrust ball bearing is connected to the circumferential surface of the annular boss.

3. The pulley rotation detection device according to claim 2, characterized in that: A platform connection part is provided between the rotating mechanism and the worktable. The platform connection part is fixedly connected to the bottom of the outer shell. The platform connection part is provided with a circular through hole. The rotating shaft passes through the circular through hole. A second planar thrust ball bearing is provided between the circumferential surface of the rotating shaft and the platform connection part.

4. The pulley rotation detection device according to claim 1, characterized in that: The lifting mechanism includes a lifting rod, a rail, and a slider; the rail is set on the worktable, the rail is perpendicular to the worktable, and the rail is connected to the lifting rod through the slider.

5. The pulley rotation detection device according to claim 4, characterized in that: It also includes a reciprocating cylinder, which is disposed on the lower surface of the worktable, and the connecting rod of the reciprocating cylinder passes through the worktable and is connected to the lifting rod.

6. The pulley rotation detection device according to claim 4, characterized in that: The lifting rod and the first dial indicator are connected by a first connecting bracket, which is configured in a Z-shape. One end of the first connecting bracket is connected to the lifting rod, and the other end is connected to the first dial indicator. The lifting rod and the second dial indicator are connected by a second connecting bracket, which is also configured in a Z-shape. One end of the second connecting bracket is connected to the lifting rod, and the other end is connected to the second dial indicator.

7. The pulley rotation detection device according to claim 1, characterized in that: A motor connection part is provided between the worktable and the motor, and the transmission shaft of the motor passes through the motor connection part and is connected to the rotating mechanism.

8. The pulley rotation detection device according to claim 1, characterized in that: It also includes a pulley outer diameter detection mechanism, which includes a No. 3 dial indicator, and the No. 3 dial indicator is in contact with the outer diameter of the rim of the pulley to be tested.

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