Variable angle measuring device of pull rope displacement sensor

Abstract

The utility model discloses a pull rope displacement sensor variable angle measuring device, which relates to the technical field of sensors and comprises a guide table and an air bearing table slidably arranged on the surface of the guide table, a hook device and an interferometer reflector are fixedly arranged at the top of the air bearing table, and a rotary table and an interferometer generator are fixedly arranged at two ends of the surface of the guide table respectively. A mounting shell is arranged on the upper surface of the rotary table, vertical plates are fixedly arranged on the two sides of the top of the mounting shell, supporting rods are fixedly arranged in the two vertical plates, the ends, close to each other, of the two supporting rods are jointly and rotationally sleeved with a positioning cover, a guide rod is fixedly arranged on one side of the inner wall of the positioning cover, and the rod wall of the guide rod is rotationally sleeved with a positioning silica gel belt. According to the utility model, before variable angle measurement is carried out on the pull rope displacement sensor, the sensor can be quickly positioned, and the rope outlet end of the sensor and the center of the turntable are positioned on the same vertical line, so that stable variable angle measurement can be carried out when the turntable rotates to any angle.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a variable angle measuring device of a pull rope displacement sensor. Background Art

[0002] The draw rope displacement sensor consists of a stretchable stainless steel rope wrapped around a threaded hub, which can output an electrical signal proportional to the distance the rope moves. By measuring the output signal, the displacement, direction or speed of the moving object can be obtained.

[0003] A search revealed patent document CN112504193A, which discloses a variable angle measurement device and method for a wire-drawn displacement sensor. The device consists of a guide mechanism, a wire-drawn sensor, an air-bearing platform, an interferometer reflector, an interferometer, a hook adjustment mechanism, an interferometer display, a turntable driver, a sensor power supply and output signal measuring instrument, a turntable, and a sensor mounting mechanism. The rotation of the turntable provides the wire-drawn sensor with a standard angular displacement within the turntable plane. The movement of the air-bearing platform drives the sensor wire in a linear motion, and the interferometer generates a highly accurate linear displacement value.

[0004] Since the rope outlet of the pull-wire displacement sensor must always be located at the center of the turntable during the measurement process, frequent and cumbersome adjustments to the mounting mechanism are required when installing sensors of different specifications, reducing measurement convenience. Utility Model Content

[0005] In view of the above problems existing in the existing variable angle measuring device of the rope displacement sensor, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide a variable angle measuring device for a rope displacement sensor, which solves the problem in the prior art that the installation position of the rope displacement sensor needs to be adjusted multiple times and frequently.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A variable angle measuring device for a pull-wire displacement sensor comprises a guide platform and an air-floating platform slidably arranged on the surface of the guide platform, a hook device and an interferometer reflector are fixedly provided on the top of the air-floating platform, a turntable and an interferometer generator are fixedly provided at both ends of the surface of the guide platform, a mounting shell is provided on the upper surface of the turntable, vertical plates are fixedly provided on both sides of the top of the mounting shell, support rods are fixedly provided inside the two vertical plates, two support rods are close to one end and are rotatably sleeved with a positioning cover, a guide rod is fixedly provided on one side of the inner wall of the positioning cover, a positioning silicone belt is rotatably sleeved on the rod wall of the guide rod, and a clamping positioning mechanism is provided between the other end of the positioning silicone belt and the positioning cover.

[0009] Preferably, a vertical rod is fixedly provided on the bottom of the mounting shell, and the vertical rod is rotatably provided on the top of the turntable.

[0010] Preferably, the clamping and positioning mechanism includes a positioning bolt, a through-hole for fitting the positioning silicone band is provided on the side of the mounting shell, an adjustment groove is provided on the side of the mounting shell, the positioning bolt is threaded in the adjustment groove and is arranged to resist the positioning silicone band.

[0011] Preferably, guide grooves are provided on both sides of the mounting shell, and a slide rod is slidably passed through the two guide grooves, and the slide rod is fixedly connected to the mounting shell;

[0012] The sliding sleeve of the rod wall of the sliding rod is provided with a positioning plate, and a strip hole is opened inside the positioning plate to cooperate with the sliding of the sliding rod. A spring is fixed between the sliding rod and the strip hole. The outer wall of the mounting shell is fixed with multiple baffles arranged in a symmetrical manner. The positioning plate is arranged between two adjacent baffles.

[0013] Furthermore, a pull rod is fixedly provided on the outer wall of the positioning plate.

[0014] Preferably, the mounting shell is hemispherical, and its center is located on the same vertical line as the center of the turntable and the rotation axis of the positioning cover.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. The utility model is equipped with a turntable, a mounting shell, a vertical plate, a rotating rod, a positioning cover, a support rod, a positioning silicone belt and a clamping positioning mechanism. Before the rope displacement sensor is measured at a variable angle, the sensor can be quickly positioned and the rope outlet end and the center of the turntable are in the same vertical line, ensuring that stable variable angle measurement can be performed when the turntable is rotated to any angle.

[0017] 2. The utility model is provided with a positioning cover, a slide bar, a guide groove, a mounting shell, a positioning plate and a baffle, so that the installation position of the pull rope displacement sensor can be adjusted at multiple angles, thereby improving the variable angle measurement range. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2This is a schematic diagram of the internal structure of the installation shell of the utility model;

[0021] Figure 3 This is a rear view of the mounting housing of the present invention;

[0022] Figure 4 For the utility model Figure 3 A magnified schematic diagram of part A;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the support rod of the utility model.

[0024] Description of reference numerals:

[0025] 1. Guide platform; 2. Air-bearing platform; 3. Hook device; 4. Interferometer reflector; 5. Turntable; 6. Mounting shell; 7. Vertical plate; 8. Support rod; 9. Pull rod; 10. Positioning cover; 11. Guide rod; 12. Positioning silicone tape; 13. Vertical rod; 14. Positioning bolt; 15. Through hole; 16. Guide groove; 17. Slide rod; 18. Positioning plate; 19. Spring; 20. Baffle; 21. Interferometer generator. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] The embodiment of the utility model discloses a variable angle measuring device of a pull rope displacement sensor.

[0028] Example 1

[0029] The utility model provides Figure 1-5The variable angle measuring device of a pull-wire displacement sensor shown in the figure includes a guide platform 1 and an air-floating platform 2 slidably arranged on the surface of the guide platform 1, characterized in that a hook device 3 and an interferometer reflector 4 are fixed to the top of the air-floating platform 2, a turntable 5 and an interferometer generator 21 are fixed to the two ends of the surface of the guide platform 1, a mounting shell 6 is provided on the upper surface of the turntable 5, a vertical rod 13 is fixed to the bottom of the mounting shell 6, and the vertical rod 13 is rotatably arranged on the top of the turntable 5, vertical plates 7 are fixed on both sides of the top of the mounting shell 6, and support rods 8 are fixed inside the two vertical plates 7, and the two support rods 8 are close to one end and rotate together with a positioning sleeve. The cover 10 and the mounting shell 6 are hemispherical, and the center is on the same vertical line as the center of the turntable 5 and the rotation axis of the positioning cover 10. A guide rod 11 is fixed on one side of the inner wall of the positioning cover 10, and a positioning silicone belt 12 is provided on the rod wall of the guide rod 11. A clamping positioning mechanism is provided between the other end of the positioning silicone belt 12 and the positioning cover 10. The clamping positioning mechanism includes a positioning bolt 14. A through hole 15 is provided on the side of the mounting shell 6 to cooperate with the positioning silicone belt 12. An adjustment groove is provided on the side of the mounting shell 6. The positioning bolt 14 is threaded in the adjustment groove and is set against the positioning silicone belt 12.

[0030] Before performing variable angle measurement, select the pull-wire displacement sensor that needs to be measured and place it in the positioning cover 10 so that the rope outlet end of the pull-wire displacement sensor is on the same horizontal line as the two rotating rods 8, and pull the positioning silicone belt 12. Under the support of the support rod 11, the positioning silicone belt 12 is sleeved on the outside of the sensor and inserted into the through hole 15. Then, the positioning bolt 14 is rotated to squeeze the positioning silicone belt 12 to complete the position fixation of the sensor. Since the rotation center of the positioning cover 10 is in the same vertical line as the rotation axis of the mounting shell 2 and the center of the turntable 5, the rope outlet end of the sensor is also in the same straight line as the center line of the turntable. At this time, even if the turntable 5 is rotated to any angle, it can be ensured that the pull-wire displacement sensor can perform stable and effective detection work.

[0031] Example 2

[0032] Example 2 is based on Example 1 in order to be able to install the wire rope displacement sensor at multiple angles and improve the variable angle measurement range, such as Figure 2-4 As shown, guide grooves 16 are provided on both sides of the mounting shell 6, and slide bars 17 are slidably passed through the two guide grooves 16, and the slide bars 17 are fixedly connected to the mounting shell 6;

[0033] The rod wall sliding sleeve of the slide rod 17 is provided with a positioning plate 18, and a strip hole is opened inside the positioning plate 18 to cooperate with the sliding of the slide rod 17. A spring 19 is fixed between the slide rod 17 and the strip hole. The outer wall of the mounting shell 6 is fixed with a plurality of baffles 20 arranged in a symmetrical manner. The positioning plate 18 is arranged between two adjacent baffles 20, and a pull rod 9 is fixed on the outer wall of the positioning plate 18.

[0034] After the pull-wire displacement sensor is set inside the positioning cover 10, when it is necessary to adjust its installation angle, the pull rod 9 can be pulled to make the pull rod 9 drive the positioning plate 18 to move longitudinally, so that the slide bar 17 slides in the positioning plate 18 and squeezes the spring 19. At this time, the lower end of the positioning plate 18 is pulled out from the baffle 20. At this time, the positioning cover 10 can be rotated with the support of the rotating rod 8 to complete the installation of the pull-wire displacement sensor at different angles. When the position is determined, the pull rod 9 is released. Under the elastic force of the spring 19, the positioning plate 18 is inserted between the two adjacent baffles 20 again to complete the position fixation of the positioning cover 10. No matter how the positioning cover 10 rotates, the rope outlet end of the internal pull-wire displacement sensor always coincides with the center line of the turntable.

[0035] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A variable angle measuring device for a pull-wire displacement sensor, comprising a guide platform (1) and an air-floating platform (2) slidably arranged on the surface of the guide platform (1), characterized in that: A hook device (3) and an interferometer reflector (4) are fixed on the top of the air-floating platform (2); a turntable (5) and an interferometer generator (21) are fixed on both ends of the surface of the guide platform (1); a mounting shell (6) is provided on the upper surface of the turntable (5); vertical plates (7) are fixed on both sides of the top of the mounting shell (6); support rods (8) are fixed inside the two vertical plates (7); the two support rods (8) are close to one end and are rotated together to be sleeved with a positioning cover (10); a guide rod (11) is fixed on one side of the inner wall of the positioning cover (10); a positioning silicone belt (12) is rotatably sleeved on the rod wall of the guide rod (11); a clamping positioning mechanism is provided between the other end of the positioning silicone belt (12) and the positioning cover (10).

2. The variable angle measuring device of the pull-wire displacement sensor according to claim 1, characterized in that: A vertical rod (13) is fixedly provided at the bottom of the mounting shell (6), and the vertical rod (13) is rotatably provided on the top of the turntable (5).

3. The variable angle measuring device of the pull-wire displacement sensor according to claim 1, characterized in that: The clamping and positioning mechanism includes a positioning bolt (14), a through hole (15) for fitting the positioning silicone band (12) is provided on the side of the mounting shell (6), an adjustment groove is provided on the side of the mounting shell (6), the positioning bolt (14) is threadedly arranged in the adjustment groove and is arranged to abut against the positioning silicone band (12).

4. The variable angle measuring device of the pull-wire displacement sensor according to claim 1, characterized in that: Guide grooves (16) are provided on both sides of the installation shell (6), and slide bars (17) are slidably passed through the two guide grooves (16), and the slide bars (17) are fixedly connected to the installation shell (6); The rod wall sliding sleeve of the slide rod (17) is provided with a positioning plate (18), the interior of the positioning plate (18) is provided with a strip hole for cooperating with the slide rod (17) to slide, a spring (19) is fixed between the slide rod (17) and the strip hole, and the outer wall of the mounting shell (6) is fixed with a plurality of baffles (20) arranged in a symmetrical manner around the outer wall, and the positioning plate (18) is arranged between two adjacent baffles (20).

5. The variable angle measuring device of the pull-wire displacement sensor according to claim 4, characterized in that: A pull rod (9) is fixedly provided on the outer wall of the positioning plate (18).

6. The variable angle measuring device of the pull-wire displacement sensor according to claim 1, characterized in that: The mounting shell (6) is hemispherical, and its center is located on the same vertical line as the center of the turntable (5) and the rotation axis of the positioning cover (10).

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