Linear motor air gap on-line measuring device

Abstract

The utility model relates to the technical field of linear motor air gap measurement, and discloses a linear motor air gap on-line measurement device, which comprises a base, a detection box is arranged at the top end of the base, and a mounting frame is mounted in the detection box. According to the linear motor air gap online measuring device, the placement frame, the moisture absorption particle bag and the weight sensor are arranged, the moisture absorption particle bag can absorb moisture in the base through the through hole, moisture absorption particles can become water after the moisture absorption particle bag absorbs the moisture, and the weight of the moisture absorption particle bag can be increased; a weight sensor at the bottom end of the moisture absorption particle bag can sense the change of the moisture absorption particle bag, an alarm can give an alarm to remind a worker to replace the moisture absorption particle bag in time after the moisture absorption particle bag reaches a certain weight, and moisture in the detection box can be adsorbed to prevent the moisture from affecting the service life of the measurement assembly; the problems that moisture in a detection box is inconvenient to process, and the measurement accuracy and the service life of an assembly are easily affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of linear motor air gap measurement technology, specifically to an online air gap measurement device for linear motors. Background Technology

[0002] Gap detection devices are typically used for two components that can move relative to each other. Accurately measuring the gap between them plays an important role in ensuring the normal function of the equipment. Gap detection devices are widely used in various mechanical equipment. Measuring the air gap of a linear motor is essential to ensure that the distance between the linear motor and the induction plate meets the requirements. When measuring the air gap of a linear motor, an online air gap measurement device for the linear motor is required.

[0003] Common online air gap measurement devices for linear motors also have some problems. For example, the inside of the test chamber is prone to moisture, which is inconvenient to deal with and can easily affect the accuracy of the measurement and the service life of the components.

[0004] Therefore, we propose an online air gap measurement device for linear motors to improve upon the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide an online air gap measurement device for linear motors, in order to solve the problem mentioned in the background art that it is inconvenient to deal with the moisture inside the test chamber, which easily affects the measurement accuracy and the service life of the components.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an online air gap measuring device for a linear motor, including a base, a detection box at the top of the base, an installation frame inside the detection box, laser sensors on the left and right sides of the installation frame, and dehumidification structures for dehumidifying the inside of the detection box on the left and right sides inside the detection box.

[0007] The dehumidification structure includes a moisture-absorbing granular bag and a through hole. Placement racks are fixedly connected to the left and right sides inside the detection box. A weight sensor is installed at the bottom of the placement rack, and a moisture-absorbing granular bag is installed at the top of the weight sensor. A through hole is opened on the outer wall of the placement rack, and an alarm is installed at the top of the left side inside the detection box.

[0008] As a further technical solution of this utility model, the moisture-absorbing granule bag is arranged inside the placement rack, and two sets of the moisture-absorbing granule bag are provided.

[0009] As a further technical solution of this utility model, shock absorbers are installed at the front and rear ends of the base and the testing box, and a buffer pad is installed between the base and the testing box.

[0010] As a further technical solution of this utility model, mounting holes are respectively provided at the four corners inside the base, mounting bolts are provided inside the mounting holes, and spring washers are provided at the top of the mounting bolts.

[0011] As a further technical solution of this utility model, the spring washer is set at the four corners of the top of the base, and the mounting holes are symmetrically distributed about the vertical center line of the base.

[0012] As a further technical solution of this utility model, a cover plate is provided at the top of the detection box, a hinge block is fixedly connected to the right side of the bottom end of the cover plate, and connecting plates are fixedly connected to the front and rear ends of the top right side of the detection box, a servo motor is installed at the front end of the connecting plate, a rotating shaft is fixedly connected to the output end of the servo motor, and the hinge block is installed outside the rotating shaft.

[0013] As a further technical solution of this utility model, threaded rods are movably connected to the left and right ends inside the mounting bracket, a rotating plate is fixedly connected to the top of the threaded rods, a limit groove is opened on the outer side wall of the rotating plate, a threaded sleeve is provided on the outside of the threaded rods, a support plate is fixedly connected to the side of the threaded sleeves near the outside, the laser sensor is set on the top of the support plate, and limit grooves are opened on the left and right sides of the top of the mounting bracket, with a limit rod movably arranged inside the limit groove.

[0014] As a further technical solution of this utility model, the threaded sleeve and the threaded rod cooperate with each other, the limiting groove is arranged in multiple sets, the limiting groove is evenly distributed on the outer side wall of the rotating plate, and the limiting rod is stuck inside the limiting groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the linear motor air gap online measuring device not only makes it easy to handle the moisture inside the detection box and easy to install and fix the device, but also makes it easy to adjust the height of the laser sensor;

[0016] (1) By setting up a rack, a moisture-absorbing particle bag, a through hole, an alarm and a weight sensor, the moisture-absorbing particle bag can absorb the moisture inside the base through the through hole. After the moisture-absorbing particle bag absorbs the moisture, the moisture-absorbing particles will turn into water, and the weight of the moisture-absorbing particle bag will increase. The weight sensor at the bottom of the moisture-absorbing particle bag can sense the change of the moisture-absorbing particle bag. When the moisture-absorbing particle bag reaches a certain weight, the alarm will sound to remind the staff to replace the moisture-absorbing particle bag in time. Absorbing the moisture inside the detection box can prevent the moisture from affecting the service life of the measuring components.

[0017] (2) By setting buffer pads, shock absorbers, mounting bolts, mounting holes and spring washers, the buffer pads and shock absorbers can buffer the test box. When the device needs to be installed in a suitable position, align the mounting holes inside the base with the mounting holes at the installation location. After alignment, screw the mounting bolts into the mounting holes to limit and fix the base, preventing the base from moving accidentally and affecting the accuracy of the measurement. The spring washers at the top of the mounting bolts can prevent the mounting bolts from accidentally coming out of the mounting holes.

[0018] (3) By setting a rotating plate, a limiting slot, a limiting rod, a threaded rod, a limiting slide groove and a threaded sleeve, when it is necessary to adjust the height of the laser sensor, push the limiting rod to disengage from the inside of the limiting slot, and then rotate the rotating plate. When the rotating plate drives the threaded rod to rotate, the threaded sleeve drives the support plate and the laser sensor to rise and fall. The laser sensor can be raised and lowered according to the needs. After adjustment, push the limiting rod back into the inside of the limiting slot to limit and fix the rotating plate. Attached Figure Description

[0019] Figure 1 This is a frontal cross-sectional view of the present invention.

[0020] Figure 2 This is a top view enlarged cross-sectional schematic diagram of the rotating plate of this utility model;

[0021] Figure 3 This is a front enlarged structural schematic diagram of the threaded rod of this utility model;

[0022] Figure 4 For the present utility model Figure 1 Enlarged cross-sectional view of point A in the middle.

[0023] In the diagram: 1. Base; 2. Buffer pad; 3. Detection box; 4. Shock absorber; 5. Mounting bolt; 6. Mounting hole; 7. Spring washer; 8. Placement rack; 9. Moisture-absorbing granule bag; 10. Through hole; 11. Alarm; 12. Laser sensor; 13. Rotating plate; 14. Cover plate; 15. Connecting plate; 16. Servo motor; 17. Weight sensor; 18. Mounting rack; 19. Support plate; 20. Limiting slot; 21. Limiting rod; 22. Threaded rod; 23. Limiting slide; 24. Threaded sleeve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 The present invention provides an embodiment of an online air gap measuring device for a linear motor, comprising a base 1, a detection box 3 at the top of the base 1, an installation frame 18 inside the detection box 3, laser sensors 12 on the left and right sides of the installation frame 18 respectively, and dehumidification structures for dehumidifying the inside of the detection box 3 on the left and right sides inside the detection box 3.

[0026] The dehumidification structure includes a moisture-absorbing granular bag 9 and a through hole 10. A placement rack 8 is fixedly connected to the left and right sides inside the detection box 3. A weight sensor 17 is installed at the bottom inside the placement rack 8. A moisture-absorbing granular bag 9 is set at the top of the weight sensor 17. A through hole 10 is opened on the outer wall of the placement rack 8. An alarm 11 is installed at the top of the left side inside the detection box 3.

[0027] The moisture-absorbing granule bag 9 is placed inside the placement rack 8. There are two sets of moisture-absorbing granule bags 9. Shock absorbers 4 are installed at the front and rear ends between the base 1 and the detection box 3, and buffer pads 2 are installed between the base 1 and the detection box 3.

[0028] Specifically, such as Figure 1 and Figure 2 As shown, the moisture-absorbing granule bag 9 can absorb moisture inside the base 1 through the through hole 10. After absorbing moisture, the moisture-absorbing granules will turn into water, and the weight of the moisture-absorbing granule bag 9 will increase. The weight sensor 17 at the bottom of the moisture-absorbing granule bag 9 can sense the change in the moisture-absorbing granule bag 9. When the moisture-absorbing granule bag 9 reaches a certain weight, the alarm 11 will sound an alarm to remind the staff to replace the moisture-absorbing granule bag 9 in time. Absorbing moisture inside the detection box 3 can prevent moisture from affecting the service life of the measuring components.

[0029] Mounting holes 6 are provided at the four corners inside the base 1. Mounting bolts 5 are installed inside the mounting holes 6. Spring washers 7 are installed at the top of the mounting bolts 5. The spring washers 7 are located at the four corners of the top of the base 1. The mounting holes 6 are symmetrically distributed about the vertical center line of the base 1. The top of the detection box 3 is provided with a cover plate 14. A hinge block is fixedly connected to the right side of the bottom of the cover plate 14. The front and rear ends of the top right side of the detection box 3 are fixedly connected with connecting plates 15. A servo motor 16 is installed at the front end of the connecting plate 15. A rotating shaft is fixedly connected to the output end of the servo motor 16. The hinge block is installed outside the rotating shaft.

[0030] Specifically, such as Figure 1 and Figure 4As shown, the buffer pad 2 and the shock absorber 4 can buffer the test box 3. When the device needs to be installed in a suitable position, align the mounting hole 6 inside the base 1 with the mounting hole 6 at the installation location. After alignment, screw the mounting bolt 5 into the inside of the mounting hole 6 to limit and fix the base 1, preventing the base 1 from moving accidentally and affecting the accuracy of the measurement. The spring washer 7 at the top of the mounting bolt 5 can prevent the mounting bolt 5 from accidentally coming out of the inside of the mounting hole 6.

[0031] The left and right ends of the mounting bracket 18 are movably connected with threaded rods 22. The top of the threaded rods 22 is fixedly connected to a rotating plate 13. The outer side wall of the rotating plate 13 is provided with a limiting groove 20. The threaded rods 22 are provided with a threaded sleeve 24. The side of the threaded sleeve 24 closest to the outside is fixedly connected to a support plate 19. The laser sensor 12 is located at the top of the support plate 19. The left and right sides of the top of the mounting bracket 18 are provided with limiting grooves 23. The limiting grooves 23 are movably provided with limiting rods 21. The threaded sleeve 24 and the threaded rods 22 cooperate with each other. The limiting grooves 20 are provided in multiple sets. The limiting grooves 20 are evenly distributed on the outer side wall of the rotating plate 13. The limiting rods 21 are locked inside the limiting grooves 20.

[0032] Specifically, such as Figure 1 and Figure 3 As shown, when the height of the laser sensor 12 needs to be adjusted, push the limiting rod 21 to disengage it from the inside of the limiting slot 20. Then rotate the rotating plate 13. When the rotating plate 13 drives the threaded rod 22 to rotate, the threaded sleeve 24 drives the support plate 19 and the laser sensor 12 to rise and fall. The rise and fall of the laser sensor 12 can adjust the height of the laser sensor 12 as needed. After adjustment, push the limiting rod 21 back into the inside of the limiting slot 20 to limit and fix the rotating plate 13.

[0033] Working principle: In use, the buffer pad 2 and shock absorber 4 cushion the detection box 3. When installing the device in a suitable position, align the mounting hole 6 inside the base 1 with the mounting hole 6 at the installation location. After alignment, screw the mounting bolt 5 into the mounting hole 6 to limit and fix the base 1, preventing accidental movement of the base 1 and affecting measurement accuracy. The spring washer 7 at the top of the mounting bolt 5 prevents the mounting bolt 5 from accidentally dislodging from the mounting hole 6. When adjusting the height of the laser sensor 12, push the limit rod 21 to dislodge it from the limit slot 20. Then rotate the rotating plate 13. The rotating plate 13 drives the threaded rod 22 to rotate, and the threaded sleeve 24 drives the support plate 19 and the laser sensor 12 to rise and fall. The height of the laser sensor 12 can be adjusted as needed. After adjustment, re-align the limit rod 21. The rod 21 is pushed into the inner limit slot 20 to limit and fix the rotating plate 13. The laser sensor 12 measures the gap between the linear motor and the induction plate and transmits the data of each train to the server, so that the inspection personnel can intuitively and accurately observe the air gap distance. When the distance exceeds the specified range, the air gap detection device will generate an alarm to remind the maintenance personnel to adjust the distance. The moisture-absorbing particle bag 9 can absorb the moisture inside the base 1 through the through hole 10. After the moisture-absorbing particle bag 9 absorbs the moisture, the moisture-absorbing particles will turn into water, and the weight of the moisture-absorbing particle bag 9 will increase. The weight sensor 17 at the bottom of the moisture-absorbing particle bag 9 can sense the change of the moisture-absorbing particle bag 9. When the moisture-absorbing particle bag 9 reaches a certain weight, the alarm 11 will sound an alarm to remind the staff to replace the moisture-absorbing particle bag 9 in time. Absorbing the moisture inside the detection box 3 can prevent the moisture from affecting the service life of the measuring components.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An online air gap measuring device for a linear motor, comprising a base (1), characterized in that: The top of the base (1) is provided with a detection box (3), and the inside of the detection box (3) is provided with a mounting frame (18). Laser sensors (12) are provided on the left and right sides of the mounting frame (18). The left and right sides inside the detection box (3) are provided with dehumidification structures for dehumidifying the inside of the detection box (3). The dehumidification structure includes a moisture-absorbing granular bag (9) and a through hole (10). The left and right sides of the inside of the detection box (3) are fixedly connected to a placement rack (8). A weight sensor (17) is installed at the bottom of the inside of the placement rack (8). A moisture-absorbing granular bag (9) is provided at the top of the weight sensor (17). An alarm (11) is installed at the top of the left side of the inside of the detection box (3).

2. A linear motor air gap on-line measuring device according to claim 1, characterized in that: The moisture-absorbing granule bag (9) is placed inside the placement rack (8), and there are two sets of the moisture-absorbing granule bag (9).

3. The air gap on-line measuring device of a linear motor according to claim 1, characterized in that: Shock absorbers (4) are installed at the front and rear ends of the base (1) and the test box (3), and a buffer pad (2) is installed between the base (1) and the test box (3).

4. The air gap on-line measuring device of a linear motor according to claim 1, characterized in that: The base (1) has four corners with mounting holes (6) respectively. The mounting holes (6) are equipped with mounting bolts (5) and the top of the mounting bolts (5) is equipped with spring washers (7).

5. A linear motor air gap on-line measuring device according to claim 4, characterized in that: The spring washers (7) are located at the four corners of the top of the base (1), and the mounting holes (6) are symmetrically distributed about the vertical center line of the base (1).

6. A linear motor air gap on-line measuring device according to claim 1, characterized in that: The top of the test box (3) is provided with a cover plate (14), and a hinge block is fixedly connected to the right side of the bottom end of the cover plate (14). The front and rear ends of the top right side of the test box (3) are respectively fixedly connected with connecting plates (15). A servo motor (16) is installed at the front end of the connecting plate (15). A rotating shaft is fixedly connected to the output end of the servo motor (16), and the hinge block is installed outside the rotating shaft.

7. A linear motor air gap on-line measuring device according to claim 1, characterized in that: The mounting bracket (18) has threaded rods (22) movably connected to its left and right ends. A rotating plate (13) is fixedly connected to the top of the threaded rod (22). A limiting slot (20) is opened on the outer side wall of the rotating plate (13). A threaded sleeve (24) is provided on the outside of the threaded rod (22). A support plate (19) is fixedly connected to the side of the threaded sleeve (24) near the outside. The laser sensor (12) is located at the top of the support plate (19). Limiting grooves (23) are opened on the left and right sides of the top of the mounting bracket (18). A limiting rod (21) is movably provided inside the limiting groove (23).

8. A linear motor air gap on-line measuring device according to claim 7, characterized in that: The threaded sleeve (24) and the threaded rod (22) cooperate with each other. The limiting slots (20) are arranged in multiple sets. The limiting slots (20) are evenly distributed on the outer side wall of the rotating plate (13). The limiting rod (21) is stuck inside the limiting slots (20).

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