A roller testing device

Abstract

This utility model discloses a roller testing device, comprising: a frame; a roller mechanism disposed in the middle of the frame, the roller mechanism including a test roller and a roller drive device, the test roller being convexly connected to the roller drive device; a testing mechanism disposed on the frame, the testing mechanism including a roller frame, a testing drive device, and a pressure sensor, the roller frame being convexly connected to the testing drive device, a first end of the pressure sensor being convexly connected to the roller frame, and a second end of the pressure sensor being convexly connected to the testing drive device; and a controller electrically connected to the roller drive device, the testing drive device, and the pressure sensor. This utility model can simulate the working environment of a roller and test its service life.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a roller testing device. Background Technology

[0002] Guide shoes are sliding nylon blocks between the elevator guide rails and the car. They secure the car to the guide rails, allowing it to move only up and down. Each elevator car is equipped with four sets of guide shoes, installed on both sides of the upper beam and below the safety gear seat at the bottom of the car. Four sets of counterweight guide shoes are installed at the bottom and top of the counterweight beam. The guide shoes fixed to the car can move back and forth along the fixed guide rails installed on the building shaft walls, preventing the car from tilting or swaying during operation. Elevator guide shoes are divided into rolling guide shoes and sliding guide shoes. Rolling guide shoes, also known as roller guide shoes, use 3 or 6 wheels that are engaged with the guide rails. During elevator operation, the rollers are in direct contact with the guide rails. Therefore, the service life of the rollers directly affects the service life of the roller guide shoes and the safety performance of the elevator. Existing roller testing equipment generally tests the roller's ultimate service life by pressing the roller against the rotating wheel and rolling it for a long time. This testing method cannot effectively simulate the working conditions of the rollers and therefore cannot accurately test the service life of the rollers under real conditions. Therefore, a roller testing mechanism is needed to detect the service life of the rollers. Utility Model Content

[0003] This invention provides a roller testing device that can simulate the working environment of a roller and test its service life.

[0004] To solve the above-mentioned technical problems, this utility model provides a roller testing device, characterized in that it includes:

[0005] frame;

[0006] A rotating mechanism is provided in the middle of the frame. The rotating mechanism includes a test rotating wheel and a rotating wheel drive device. The test rotating wheel is connected to the rotating wheel drive device in a transmission manner. The rotating wheel drive device is used to drive the rotating wheel to rotate in both directions.

[0007] The testing mechanism is mounted on the frame and includes a roller frame, a test drive device, and a pressure sensor. The roller frame is used to mount the roller to be tested and is driven by the test drive device. The first end of the pressure sensor is driven by the roller frame and the second end of the pressure sensor is driven by the test drive device. The test drive device is used to drive the roller frame to move relative to the roller.

[0008] The controller is electrically connected to the wheel drive device, the test drive device, and the pressure sensor.

[0009] As a preferred embodiment of the above technical solution, the testing mechanism further includes a guide rail, and the roller frame is disposed on the guide rail and can slide on the guide rail.

[0010] As a preferred embodiment of the above technical solution, the bottom of the roller frame is provided with a sliding groove, the sliding groove is engaged on the guide rail, and the inner sidewall of the sliding groove abuts against the outer sidewall of the guide rail.

[0011] As a preferred embodiment of the above technical solution, a connecting part is provided on one side of the roller frame, the connecting part includes a connecting shaft, and a connecting ring is provided at the first end of the pressure sensor. The connecting ring is sleeved on the connecting shaft, so that the pressure sensor and the roller frame are rotatably connected.

[0012] As a preferred embodiment of the above technical solution, the roller frame includes a positioning shaft and a fixing member. The upper part of the positioning shaft is provided with a mounting part, the fixing member is detachably connected to the positioning shaft, and the lower surface of the fixing member cooperates with the mounting part to form a mounting groove.

[0013] As a preferred embodiment of the above technical solution, the roller frame includes a clamping base, the clamping base includes a fixed part and an elastic clamping part, the bottom of the fixed part is provided with the sliding groove, the fixed part and the elastic clamping part cooperate to form a clamping hole, the positioning shaft is detachably inserted into the clamping hole, the first end of the elastic clamping part is connected to the fixed part, the second end of the elastic clamping part is provided with a first locking part, the fixed part is provided with a second locking part that cooperates with the first locking part, the roller frame also includes a locking member, the first locking part and the second locking part are connected by the locking member, the locking member can drive the elastic clamping part to undergo elastic deformation so that the second end of the elastic clamping part moves toward the direction closer to the fixed part to reduce the diameter of the clamping hole.

[0014] As a preferred embodiment of the above technical solution, the first locking part is a through hole, the second locking part is a threaded hole, the locking member is a bolt, and the locking member passes through the first locking part and is threadedly connected to the second locking part.

[0015] As a preferred embodiment of the above technical solution, there are four testing mechanisms, which are evenly distributed on the frame.

[0016] As a preferred embodiment of the above technical solution, the test drive device is a servo drive motor, and the wheel drive mechanism is a drive motor.

[0017] As a preferred embodiment of the above technical solution, the controller is a programmable controller.

[0018] This utility model provides a roller testing device, characterized in that it includes: a frame, a rotating wheel mechanism, a testing mechanism, and a controller. In use, the roller to be tested is mounted on the roller frame. The testing drive device drives the roller frame to move, causing the roller to be tested and the testing rotating wheel to come into contact, forming a friction transmission pair. At this time, the pressure sensor is squeezed by the roller frame and the testing drive device, and transmits the measured pressure value to the controller. When the value measured by the pressure sensor is less than a preset value, the controller controls the testing drive device to continue driving the roller frame to move until the value measured by the pressure sensor matches the preset value. During the test, the outer edge of the roller to be tested will gradually wear down as the test progresses, making it impossible for the roller to come into contact with the testing wheel. The roller abuts against the test roller, causing the pressure sensor reading to be lower than a preset value. The test drive device continues to move the roller frame toward the test roller until the pressure sensor reading matches the preset value. By setting the pressure sensor, it can be ensured that the roller under test bears a fixed load throughout the test, which is approximately equal to the load on the roller during elevator use, thus improving test accuracy. In addition, it can be ensured that the test results will not be affected by wear of the roller under test during the test, thereby further improving test accuracy. The rotation drive device drives the test roller to rotate in both directions, thereby driving the roller under test to rotate in both directions, which can simulate the forward and reverse rotation of the roller when the elevator car is moving up and down, making the test more accurate.

[0019] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a roller testing device according to an embodiment of the present utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of the testing mechanism of a roller testing device according to an embodiment of the present utility model;

[0022] Figure 3 This is a three-dimensional structural diagram of the clamping base of a roller testing device according to an embodiment of the present utility model;

[0023] Figure 4 This is a schematic block diagram of the control circuit of a roller testing device according to an embodiment of the present invention;

[0024] In the diagram: 1. Frame; 2. Rotary wheel mechanism; 3. Testing mechanism; 4. Roller frame; 201. Testing rotary wheel; 202. Rotary wheel drive device; 301. Testing drive device; 302. Pressure sensor; 303. Guide rail; 304. Connecting ring; 401. Slide groove; 402. Connecting part; 403. Positioning shaft; 404. Fixing part; 405. Mounting part; 406. Mounting groove; 407. Clamping base; 408. Fixing part; 409. Elastic clamping part; 410. Clamping hole; 411. First locking part; 412. Second locking part; 413. Locking element; 414. Connecting shaft. Detailed Implementation

[0025] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] See Figures 1 to 4 This utility model provides a roller testing device, characterized in that it includes:

[0027] Rack 1;

[0028] Rotary wheel mechanism 2 is disposed in the middle of the frame 1. The rotary wheel mechanism 2 includes a test rotary wheel 201 and a rotary wheel drive device 202. The test rotary wheel 201 is connected to the rotary wheel drive device 202 in a transmission manner. The rotary wheel drive device 202 is used to drive the rotary wheel to rotate in both directions.

[0029] The testing mechanism 3 is mounted on the frame 1. The testing mechanism 3 includes a roller frame 4, a testing drive device 301, and a pressure sensor 302. The roller frame 4 is used to mount the roller to be tested. The roller frame 4 is drivenly connected to the testing drive device 301. The first end of the pressure sensor 302 is drivenly connected to the roller frame, and the second end of the pressure sensor 302 is drivenly connected to the testing drive device 301. The testing drive device 301 is used to drive the roller frame 4 to move relative to the roller.

[0030] The controller is electrically connected to the rotary drive device 202, the test drive device 301, and the pressure sensor 302.

[0031] This utility model provides a roller testing device, characterized in that it includes: a frame 1, a rotating wheel mechanism 2, a testing mechanism 3, and a controller. In use, the roller to be tested is mounted on the roller frame 4. The testing drive device 301 drives the roller frame 4 to move, causing the roller to be tested and the testing rotating wheel 201 to abut against each other, forming a friction transmission pair. At this time, the pressure sensor 302 is squeezed by the roller frame 4 and the testing drive device 301, and transmits the measured pressure value to the controller. When the value measured by the pressure sensor 302 is less than a preset value, the controller controls the testing drive device 301 to continue driving the roller frame 4 to move until the value measured by the pressure sensor 302 matches the preset value. During the test, the outer edge of the roller to be tested will gradually wear down as the test progresses, causing the roller to wear down. If the roller cannot contact the test wheel 201, causing the pressure sensor 302 to measure a value lower than the preset value, the test drive device 301 continues to drive the roller frame 4 to move towards the test wheel 201 until the pressure sensor 302 measures the preset value. By setting the pressure sensor 302, it can be ensured that the roller under test bears a fixed load throughout the test, which is approximately equal to the load on the roller during elevator use, thus improving test accuracy. In addition, it can be ensured that the test results will not be affected by wear of the roller under test during the test, thereby further improving test accuracy. The rotation drive device drives the test wheel 201 to rotate in both directions, thereby driving the roller under test to rotate in both directions, which can simulate the working situation of the roller rotating in both directions when the elevator car is moving up and down, making the test more accurate.

[0032] In a further embodiment of this invention, the testing mechanism 3 further includes a guide rail 303, and the roller frame is disposed on the guide rail 303, and the roller frame can slide on the guide rail 303.

[0033] In this embodiment, the testing mechanism 3 further includes a guide rail 303. The testing drive device 301 can drive the roller frame to slide on the guide rail 303, limiting the travel of the roller frame. This makes the movement of the roller frame 4 more stable and ensures that the roller frame 4 will not be biased, thereby ensuring testing accuracy and reducing safety hazards.

[0034] In a further embodiment of this invention, the bottom of the roller frame is provided with a sliding groove 401, the sliding groove 401 is engaged on the guide rail 303, and the inner sidewall of the sliding groove 401 abuts against the outer sidewall of the guide rail 303.

[0035] In this embodiment, a groove 401 is provided at the bottom of the roller frame. The inner sidewall of the groove 401 abuts against the outer sidewall of the guide rail 303. When the roller to be tested abuts against the rotating wheel, the groove 401, together with the guide rail 303, can restrict the roller frame 4 from moving to both sides, ensuring that the roller frame 4 will not be biased, thereby ensuring testing accuracy and reducing safety hazards.

[0036] In a further embodiment of this invention, a connecting part 402 is provided on one side of the roller frame 4. The connecting part 402 includes a connecting shaft 414. A connecting ring 304 is provided at the first end of the pressure sensor 302. The connecting ring 304 is sleeved on the connecting shaft 414, so that the pressure sensor 302 and the roller frame 4 are rotatably connected.

[0037] In this embodiment, the connecting ring 304 is sleeved on the connecting shaft 414, allowing the pressure sensor 302 and the roller frame 4 to be rotatably connected. The second end of the pressure sensor 302 is connected to the test drive device 301 via a lead screw. During assembly, to ensure test accuracy and smooth operation of the roller frame 4 on the guide rail 303, the relative positions of the lead screw and the guide rail 303 need to be adjusted to ensure that the central axis of the lead screw is parallel to the direction of movement of the roller frame 4 on the guide rail 303. The rotatable connection between the pressure sensor 302 and the roller frame 4 allows the angle between the lead screw and the roller frame 4 to be adjusted after the roller frame 4 is installed on the guide rail 303, improving the convenience of adjusting the position of the lead screw, thereby improving assembly efficiency and ensuring test accuracy.

[0038] In a further embodiment of this invention, the roller frame 4 includes a positioning shaft 403 and a fixing member 404. The positioning shaft 403 has an upper mounting part 405. The fixing member 404 is detachably connected to the positioning shaft 403. The lower surface of the fixing member 404 cooperates with the mounting part 405 to form a mounting groove 406.

[0039] In this embodiment, the roller frame 4 includes a positioning shaft 403 and a fixing member 404. In use, the fixing member 404 is first removed from the positioning shaft 403, and then the center hole of the roller to be tested is fitted into the mounting part 405. The fixing member 404 is then installed on the top of the positioning shaft 403, and fasteners are used to fix the fixing member 404 to the positioning shaft 403. The lower surface of the fixing member 404 cooperates with the mounting part 405 to form a mounting groove 406. The mounting groove 406 can limit the position of the roller to be tested, ensuring that the roller to be tested can abut against the test roller, improving the convenience of operation. The mounting groove 406 can also limit the movement of the roller to be tested, preventing the roller to be tested from detaching from the roller frame 4 during the test, which can reduce safety hazards.

[0040] In a further embodiment of this invention, the roller frame 4 includes a clamping base 407, which includes a fixing part 408 and an elastic clamping part 409. The bottom of the fixing part 408 is provided with the sliding groove 401. The fixing part 408 and the elastic clamping part 409 cooperate to form a clamping hole 410. The positioning shaft 403 is detachably inserted into the clamping hole 410. The first end of the elastic clamping part 409 is connected to the fixing part 408. The second end is provided with a first locking part 411, and the fixing part 408 is provided with a second locking part 412 that cooperates with the first locking part 411. The roller frame 4 also includes a locking member 413. The first locking part 411 and the second locking part 412 are connected by the locking member 413. The locking member 413 can drive the elastic clamping part 409 to undergo elastic deformation, causing the second end of the elastic clamping part 409 to move toward the fixing part 408 to reduce the diameter of the clamping hole 410.

[0041] In this embodiment, during actual testing, the size of the rollers to be tested often varies. Therefore, the positioning shafts 403 of the mounting slots 406 with different sizes are needed to match the rollers of different sizes. The roller frame 4 includes a clamping base 407, which includes a fixing part 408 and an elastic clamping part 409. The fixing part 408 and the elastic clamping part 409 cooperate to form a clamping hole 410. When the positioning shaft 403 needs to be installed, the positioning shaft 403 is detachably inserted into the clamping hole 410, and the locking member 413 can drive the elastic clamping part 409 to undergo elastic deformation, causing the elastic clamping part 409 to undergo elastic deformation. The two ends move towards the fixing part 408 to reduce the diameter of the clamping hole 410, thereby clamping the positioning shaft 403 with the clamping base 407. When the positioning shaft 403 needs to be replaced, the locking member is released, and the elastic clamping part 409 returns to its original position under its own elastic force. The second end of the elastic clamping part 409 moves away from the fixing part 408 to expand the diameter of the clamping hole 410, making it easier for the operator to remove the positioning shaft 403. Through the cooperation of the fixing part 408 and the elastic clamping part 409, the replacement of the positioning shaft 403 can be completed quickly, further improving the convenience of operation and increasing efficiency.

[0042] In a further embodiment of this invention, the first locking part 411 is a through hole, the second locking part 412 is a threaded hole, the locking member 413 is a bolt, and the locking member 413 passes through the first locking part 411 and is threadedly connected to the second locking part 412.

[0043] In this embodiment, the locking member 413 is a bolt. The locking member 413 passes through the first locking part 411 and is threadedly connected to the second locking part 412. By tightening or loosening the bolt, the operation of clamping the positioning shaft 403 and loosening the positioning shaft 403 can be completed. The structure is simple and reliable and the operation is convenient.

[0044] In a further embodiment of this example, there are four testing mechanisms 3, which are evenly distributed on the frame 1.

[0045] In this embodiment, there are four testing mechanisms 3, which enables the testing equipment to test four rollers at once, improving testing efficiency. In addition, the positioning shaft 403 is designed to be detachable and replaceable, which allows for the simultaneous testing of four different types of rollers, further improving testing efficiency.

[0046] In a further embodiment of this invention, the test drive device 301 is a servo drive motor, and the wheel drive mechanism is a drive motor.

[0047] In this embodiment, the test drive device 301 is a servo drive motor, which can accurately control the movement stroke of the roller frame to ensure that the roller under test abuts against the test roller 201, thereby ensuring test accuracy.

[0048] In a further embodiment of this example, the controller is a programmable controller.

[0049] In this embodiment, the controller is a programmable logic controller (PLC). The PLC can control and record the working state of the rotary drive device 202 and the working state of the test drive device 301. It can also receive and record the pressure signal emitted by the pressure sensor 302.

[0050] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0052] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A roller test device, characterized by, include: frame; A rotating mechanism is provided in the middle of the frame. The rotating mechanism includes a test rotating wheel and a rotating wheel drive device. The test rotating wheel is connected to the rotating wheel drive device in a transmission manner. The rotating wheel drive device is used to drive the rotating wheel to rotate in both directions. The testing mechanism, mounted on the frame, includes a roller frame, a test drive device, and a pressure sensor. The roller frame is used to mount the roller under test and is driveably connected to the test drive device. A first end of the pressure sensor is driveably connected to the roller frame, and a second end is driveably connected to the test drive device. The test drive device moves the roller frame relative to the rotating roller. The roller frame includes a positioning shaft and a clamping base. The positioning shaft mounts the roller under test, and the clamping base includes a fixing part and an elastic clamping part. The fixing part and the elastic clamping part cooperate to form a clamping hole. The positioning shaft can be detachably inserted into the clamping hole. The first end of the elastic clamping part is connected to the fixing part. The second end of the elastic clamping part is provided with a first locking part. The fixing part is provided with a second locking part that cooperates with the first locking part. The roller frame also includes a locking member. The first locking part and the second locking part are connected through the locking member. The locking member can drive the elastic clamping part to undergo elastic deformation, causing the second end of the elastic clamping part to move toward the fixing part to reduce the diameter of the clamping hole. The controller is electrically connected to the wheel drive device, the test drive device, and the pressure sensor.

2. The roller test device of claim 1, wherein, The testing mechanism also includes a guide rail, and the roller frame is mounted on the guide rail and can slide on the guide rail.

3. The roller test device of claim 2, wherein, The bottom of the roller frame is provided with a sliding groove, which is engaged with the guide rail, and the inner side wall of the sliding groove abuts against the outer side wall of the guide rail.

4. The roller test device of claim 3, wherein, A connecting part is provided on one side of the roller frame. The connecting part includes a connecting shaft. A connecting ring is provided at the first end of the pressure sensor. The connecting ring is sleeved on the connecting shaft, so that the pressure sensor and the roller frame are rotatably connected.

5. The roller test device of claim 3, wherein, The roller frame includes a fixing member, and the upper part of the positioning shaft is provided with a mounting part. The fixing member is detachably connected to the positioning shaft, and the lower surface of the fixing member cooperates with the mounting part to form a mounting groove.

6. The roller test device of claim 5, wherein, The bottom of the fixing part is provided with the sliding groove.

7. The roller test device of claim 6, wherein, The first locking part is a through hole, the second locking part is a threaded hole, the locking member is a bolt, and the locking member passes through the first locking part and is threadedly connected to the second locking part.

8. The roller test device of claim 1, wherein, There are four testing mechanisms, which are evenly distributed on the frame.

9. The roller test device of claim 1, wherein, The test drive device is a servo drive motor, and the wheel drive mechanism is a drive motor.

10. The roller test device of claim 1, wherein, The controller is a programmable controller.

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