A device for inspecting the precision of conveyor rollers

Abstract

This utility model discloses a conveyor roller precision inspection device, which consists of a fixed guide wheel and a movable guide wheel set on a guide groove chassis; a trigger rod fixed on a coaxial shaft, which rotates with the shaft; a vertical pressure sensor set on the outside of the roller in conjunction with the trigger rod; a drive support seat set on the front or rear side of the machine base, with a lower pressure plate hinged to the drive support seat, and a drive motor and a pressure roller set on the lower pressure plate; through the above structural configuration, the trigger rod and the vertical pressure sensor can be squeezed during downward pressure, thereby realizing the rotational resistance test; side bases are set on both the left and right sides of the base plate, with a side pressure cylinder fixed on one side base and a large-diameter drive head set on the side pressure cylinder; an axial pressure sensor and a small-diameter drive head are fixed on the other side base; the large-diameter drive head squeezes the outer diameter of the roller end, and the small-diameter drive head is used to drive the shaft; the above structure realizes the axial force test of the roller.

Description

Technical Field

[0001] This utility model belongs to the technical field of conveyor roller inspection equipment, and in particular relates to a conveyor roller precision inspection device. Background Technology

[0002] In the field of material conveying roller technology, most conveying rollers are currently composed of rollers, shafts, and bearings. In addition to good durability, these material conveying rollers must also possess the following performance characteristics during use: 1. Good rotational performance: When multiple rollers are used simultaneously, good rotational performance significantly reduces drive power, saving costs for the user; 2. Because the conveyor belt may deviate under uneven material pressure when combined with the rollers, the conveyor belt will always bear this axial force until the correction device corrects it. This situation severely tests the axial strength of the roller, shaft, and bearing combination. If the axial strength of the product is low, there will be a technical problem of overall axial separation and damage; 3. When the conveyor belt is under load, its operation must be stable. To prevent the conveyor belt from jumping, the runout of the roller's outer diameter must be strictly controlled.

[0003] To address the aforementioned technical issues, the characteristics of conveyor rollers must be inspected during production to ensure product quality. Currently, these inspections are conducted using a combination of single-function testing equipment and a universal testing machine. Single-function testing machines can only perform single-item tests on roller axial pressure or roller rotational resistance, and existing setups cannot detect runout; therefore, a universal testing machine is currently used for auxiliary testing. Because roller production is a niche industry, there is no mature system of testing equipment available on the market. Existing equipment is all modular, occupying significant space in the laboratory and increasing construction costs.

[0004] To address the aforementioned technical issues, it is essential for those skilled in the art to integrate the existing roller axial force test, rotational resistance test, and runout test into a single device. This would simplify the size of the testing equipment, enable the stable operation of the above tests on the same device, and ensure that the test accuracy meets the required standards. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, this utility model proposes a conveyor roller precision inspection device, which combines roller axial force testing and rotational resistance testing, enabling a single device to complete multiple test items. This not only reduces the overall size of the testing equipment but also ensures the rationality of the highly integrated equipment and improves testing stability.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A conveyor roller precision inspection device includes a machine base with a guide trough chassis mounted on the machine base.

[0008] The guide groove chassis is provided with a base plate, and at least two sets of fixed support platforms and movable support platforms are provided on the base plate. Fixed guide wheels are provided on the fixed support platforms, and movable guide wheels are provided on the movable support platforms. The movable support platform is connected to a lead screw through an adjusting nut, and an adjusting handwheel is provided at the end of the lead screw.

[0009] The base plate is provided with end positioning components;

[0010] A trigger rod is fixed on the shaft, and the trigger rod rotates with the shaft; a vertical pressure sensor is set on the outside of the roller in conjunction with the trigger rod;

[0011] The machine tool is provided with a drive support base on the front or rear side. A lower pressure plate is hinged to the drive support base. A drive motor and a pressure support base are provided on the lower pressure plate. The pressure support base is used to fix the pressure roller. The drive motor is provided with a pulley and a belt to drive the pressure roller. A lower pressure drive cylinder is provided on the lower pressure plate to drive it downward.

[0012] The base plate has side bases on both the left and right sides. A side pressure cylinder is fixed on one side base, and a large-diameter drive head is installed on the side pressure cylinder. An axial pressure sensor is fixed on the other side base. An adjusting cylinder assembly is connected to the axial pressure sensor, and a small-diameter drive head is connected to the adjusting cylinder assembly. The large-diameter drive head squeezes the outer diameter of the end of the roller, and the small-diameter drive head is used to drive the shaft rod.

[0013] Both the vertical pressure sensor and the axial pressure sensor are connected to an external control computer.

[0014] The machine base or guide trough chassis is provided with a vertical support rod, and a positioning ring is provided on the vertical support rod. A vertical sleeve is inserted into the upper part of the positioning ring. The vertical pressure sensor is fixed by the vertical sleeve. The vertical sleeve can be locked and rotated on the vertical support rod.

[0015] The side base is provided with a vertical fixing seat, and the side pressure cylinder is locked and fixed in the vertical fixing seat, with the bottom of the side pressure cylinder in pressure contact with the side base.

[0016] A pull rod is connected between the side bases on the left and right sides of the base plate, and the pull rod is used to fix the two side bases laterally.

[0017] The lower pressure plate is equipped with multiple pressure rollers that are evenly spaced apart. The purpose of this is to apply pressure to multiple parts of the entire roller, which can avoid the distortion of test data caused by local roller pressure during the runout test.

[0018] The side base is an L-plate, the bottom of which is locked and fixed to the guide groove chassis. A reinforcing plate is provided inside the L-plate to achieve overall reinforcement.

[0019] This invention has the following advantages: It features at least two sets of fixed and movable support platforms on the guide groove chassis. Fixed guide wheels are mounted on the fixed support platforms, and movable guide wheels are mounted on the movable support platforms. The movable guide wheels are connected to an adjusting screw for adjustment. A trigger rod is fixed to the shaft body and rotates with the shaft body. A vertical pressure sensor is mounted outside the roller in conjunction with the trigger rod. A drive support seat is located on the front or rear side of the machine base, and a lower pressure plate is hinged to the drive support seat. A drive motor and a pressure roller are mounted on the lower pressure plate. Through this structural design, the trigger rod and the vertical pressure sensor can be pressed together during downward pressure, thereby achieving rotational resistance testing.

[0020] Side bases are provided on both the left and right sides of the base plate. A side pressure cylinder is fixed to one side base, and a large-diameter drive head is mounted on the side pressure cylinder. An axial pressure sensor and a small-diameter drive head are fixed to the other side base. The large-diameter drive head squeezes the outer diameter of the roller end, while the small-diameter drive head drives the shaft. This structure enables the testing of the axial force on the roller. This invention integrates rotational resistance testing and axial force testing into one unit, allowing for the testing of two or more items on a single device. Its testing environment is closer to actual usage conditions. This invention can also be extended to runout testing, and this test can be performed under the pressure of multiple pressure rollers, making the test more accurate and reasonable. It is an ideal device for inspecting the precision of conveyor rollers. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure I ;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure II ;

[0024] Figure 3 A schematic diagram of the assembly structure of the fixed support platform and the movable support platform;

[0025] Figure 4 This is a schematic diagram of the main structure of this utility model;

[0026] Figure 5 This is a side view of the structure of this utility model;

[0027] In the figure, 1 is the machine base, 11 is the guide groove chassis, 12 is the vertical support rod, 121 is the positioning ring, 13 is the vertical sleeve, 14 is the vertical pressure sensor, 15 is the shaft sleeve, 16 is the trigger rod, and 17 is the end positioning component.

[0028] 20. Base plate, 21. Adjusting handwheel, 22. Fixed support platform, 23. Guide wheel fixing plate I, 24. Fixed guide wheel, 25. Screw end plate, 26. Movable support platform, 27. Guide wheel fixing plate II, 28. Movable guide wheel, 29. Screw seat, 20. Screw;

[0029] Side base, 31. Reinforcing plate, 32. Pull rod;

[0030] 41. Drive support seat, 42. Hinge shaft, 43. Lower pressure plate, 44. Drive motor, 45. Pressure support seat, 46. Pressure roller, 47. Protective cover, 48. Lower pressure drive cylinder.

[0031] Side pressure cylinder, 51. Vertical fixed seat, 52. Large diameter drive head, 53. Axial pressure sensor, 54. Adjusting cylinder assembly, 55. Small diameter drive head;

[0032] Roller, 61, shaft rod. Detailed Implementation

[0033] The conveyor roller precision inspection device disclosed in this utility model has a novel and reasonable structure, but the beneficial effects of its overall structural improvement are obvious. In order to make the improved effects of this utility model clearer, the following describes this utility model in further detail through specific embodiments.

[0034] Example 1: A conveyor roller precision inspection device, which includes a machine base 1, a support leg at the bottom of the machine base 1, and a guide groove chassis 11 on the top surface of the machine base 1. The specific structure of the guide groove chassis 11 can refer to the material placement table on the milling machine and machining center in the prior art.

[0035] The base plate 2 is bolted to the guide groove chassis 11. Two sets of fixed support platforms 21 and movable support platforms 25 are provided on the base plate 2. Each fixed support platform 21 and movable support platform 25 constitutes a set. Fixed guide wheels 23 are fixed on the fixed support platform 21 via guide wheel fixing plate I 22. A lead screw end plate 24 and a lead screw seat 28 are provided on the base plate 2, supporting the lead screw 29. An adjusting handwheel 20 is provided at the end of the lead screw 29. Movable guide wheels 27 are provided on the movable support platform 25 via guide wheel fixing plate II 26. The movable support platform 25 is connected to the lead screw 29 via an adjusting nut. An adjusting handwheel 20 is provided at the end of the lead screw 29. The distance between the fixed guide wheel 23 and the movable guide wheel 27 is adjusted by tightening the adjusting handwheel 20, thereby supporting rollers 6 with different outer diameters.

[0036] The base plate 2 is provided with two end positioning parts 17, which are respectively located on both sides of the roller 6. After the fixed guide wheel 23 and the movable guide wheel 27 support the roller 6, the two end positioning parts 17 are used for blocking and positioning at both ends of the roller 6.

[0037] This invention features a central sleeve 15 fixedly mounted on a central shaft 61 inside the roller 6. The central sleeve 15 secures the trigger rod 16, which rotates with the central shaft 61. A vertical support rod 12 is also provided on the machine base 1, with a positioning ring 121 on it. A vertical sleeve 13 is inserted into the upper part of the positioning ring 121, securing the vertical pressure sensor 14. The vertical sleeve 13 can be locked and rotated on the vertical support rod 12. When performing other tests, the vertical sleeve 13 and the vertical pressure sensor 14 can be removed.

[0038] A drive support base 4 is provided on the rear side of the machine base 1. A lower pressure plate 42 is hinged to the top of the drive support base 4 via a hinge shaft 41. A drive motor 43 and two pressure support seats 44 are provided on the lower pressure plate 42, which fix the pressure roller 45. The drive motor 43 is equipped with a pulley and a belt to drive the pressure roller 45. A lower pressure drive cylinder 47 is provided at the bottom of the lower pressure plate 42 between the lower pressure plate 42 and the machine base 1 to drive the lower pressure plate 42 downward. When this equipment is running, the drive motor 43 and the pressure roller 45 on the upper part of the lower pressure plate 42 pose a safety hazard to personnel outside due to high-speed rotation. To avoid injury, a protective cover 46 is provided on the upper part to cover all rotating devices.

[0039] The vertical pressure sensor 14 is connected to an external control computer. The pressure data sensed by the vertical pressure sensor 14 is displayed on the computer through the external control computer. This method of connecting the sensor to the computer is common in the prior art, especially in universal testing machines. Those skilled in the art can use the existing mature digital-to-analog conversion system to realize the display or warning of the above end data. The detection system principle and circuit connection will not be described in detail here.

[0040] The above structure is used to realize the rotational resistance test. When the pressure roller 45 squeezes the roller 6 to realize the drive, if the roller manufacturing precision is poor, the resistance between the roller 6 and the shaft rod 61 at the shaft center will be large. The roller 6 will rotate synchronously with the shaft rod 61, fixing the trigger rod 16 on the shaft rod 61. The shaft rod 61 drives the trigger rod 16 to rotate. When the trigger rod 16 squeezes the vertical pressure sensor 14, the greater the pressure on the vertical pressure sensor 14, the greater the rotational resistance. When it exceeds a certain value, it means that the conveyor roller is unqualified.

[0041] Example 2: The present invention also provides two side bases 3 on the left and right sides of the base plate 2 and on the guide groove base plate 11. The side bases 3 are L-plates, the bottom surface of which is locked and fixed to the guide groove base plate 11. A reinforcing plate 31 is provided inside the L-plate, and the overall reinforcement of the L-plate is achieved by the reinforcing plate 31.

[0042] A vertical fixing seat 51 is provided on one side of the side base 3, which fixes the side pressure cylinder 5. The tail end of the side pressure cylinder 5 rests on the side base 3. A large-diameter drive head 52 is bolted to the side pressure cylinder 5. The large-diameter drive head 52 is used to compress the outer diameter of the end of the roller 6. An axial pressure sensor 53 is fixed on the other side of the side base 3. An adjusting cylinder assembly 54 is connected to the axial pressure sensor 53. A small-diameter drive head 55 is connected to the adjusting cylinder assembly 54. The small-diameter drive head 55 is used to bear the force applied by the shaft rod 61. The adjusting cylinder assembly 54 is used to realize axial extension and retraction adjustment. Therefore, this type of adjusting cylinder assembly 54 is commonly used in the field of traction. Its specific structure will not be described in detail here.

[0043] Furthermore, multiple tie rods 32 are connected between the side bases 3 on the left and right sides of the base plate 2. The tie rods 32 are used to achieve lateral traction and fixation between the side bases 3. Because there is a strong lateral force on the side bases 3 during the roller axial force test, the tie rods 32 can ensure the overall structural stability during the roller axial force test.

[0044] During testing, the two end positioning parts 17 need to be removed to avoid interference when axial force is applied. The roller 6 is placed above the fixed guide wheel 23 and the movable guide wheel 27. The large-diameter drive head 52 is driven by the side pressure cylinder 5 to squeeze the roller, and the small-diameter drive head 55 bears the force applied by the shaft rod 61 and transmits the force to the axial pressure sensor 53. If the roller 6 is not damaged when the side pressure cylinder 5 applies a fixed pressure, it means that the product is qualified.

[0045] Example 3: This utility model can also be extended to perform runout testing, that is, to test the change in the outer diameter of the test roller 6 during rotation, so as to avoid affecting the stability of the conveyor belt during use.

[0046] This invention provides multiple pressure rollers 45 on the lower pressure plate 42, with the multiple pressure rollers 45 evenly spaced apart. The purpose is to synchronously extrude and drive multiple parts of the entire roller 6. With the help of an external dial indicator, the runout of the outer diameter of the rotating roller 6 can be tested at multiple points. By synchronously driving multiple points, the test data distortion caused by local roller pressure can be avoided.

[0047] In summary, this invention integrates rotational resistance testing, axial force testing, and runout testing into one unit, enabling the implementation of these three tests on a single device. Furthermore, the axial force testing is conducted in an environment closer to actual usage conditions. This invention can also be extended to runout testing, which can be performed under the pressure of multiple pressure rollers, resulting in more accurate and reasonable testing. It is an ideal device for inspecting the precision of conveyor rollers.

Claims

1. A conveyor roll precision inspection apparatus characterized by: It includes a machine base, on which a guide trough chassis is installed; The guide groove chassis is provided with a base plate, and at least two sets of fixed support platforms and movable support platforms are provided on the base plate. Fixed guide wheels are provided on the fixed support platforms, and movable guide wheels are provided on the movable support platforms. The movable support platform is connected to a lead screw through an adjusting nut, and an adjusting handwheel is provided at the end of the lead screw. The base plate is provided with an end positioning component; a trigger rod is fixed on the shaft body, and the trigger rod rotates with the shaft body; a vertical pressure sensor is provided on the outside of the roller in conjunction with the trigger rod; The machine tool is provided with a drive support seat on the front or rear side. A lower pressure plate is hinged to the drive support seat. A drive motor and a pressure support seat are provided on the lower pressure plate. The pressure support seat fixes the pressure roller. The drive motor is provided with a pulley and a belt to drive the pressure roller. A lower pressure drive cylinder is provided on the lower pressure plate. The base plate has side bases on both the left and right sides. A side pressure cylinder is fixed on one side base, and a large-diameter drive head is installed on the side pressure cylinder. An axial pressure sensor is fixed on the other side base. An adjusting cylinder assembly is connected to the axial pressure sensor, and a small-diameter drive head is connected to the adjusting cylinder assembly. The large-diameter drive head squeezes the outer diameter of the end of the roller, and the small-diameter drive head is used to drive the shaft rod. Both the vertical pressure sensor and the axial pressure sensor are connected to an external control computer.

2. A precision checking device for a feed roller as claimed in claim 1, characterized in that: The machine base or guide trough chassis is provided with a vertical support rod, and a positioning ring is provided on the vertical support rod. A vertical sleeve is inserted into the upper part of the positioning ring, and the vertical pressure sensor is fixed by the vertical sleeve.

3. A precision check device for a feed roller as defined in claim 1, characterized in that: The side base is provided with a vertical fixing seat, and the side pressure cylinder is locked and fixed in the vertical fixing seat, with the bottom of the side pressure cylinder in pressure contact with the side base.

4. A precision check device for a feed roller as defined in claim 1, characterized in that: A pull rod is connected between the side bases on the left and right sides of the base plate, and the pull rod is used to fix the two side bases laterally.

5. A precision check device for a feed roller as defined in claim 1, wherein: The lower pressure plate is provided with multiple pressure rollers, which are evenly distributed at intervals.

6. A precision check device for a feed roller as defined in claim 1, wherein: The side base is an L-shaped plate, the bottom of which is locked and fixed to the guide groove chassis, and a reinforcing plate is provided inside it.

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