Torque sensor for electric steering engine loading test bench

Abstract

The utility model discloses a torque sensor for an electric steering engine loading test bench, which comprises a test mechanism, a correction mechanism and a height adjusting mechanism, and is characterized in that the test mechanism comprises a sensor main body, two clamping sleeves sleeved on the outer side of the sensor main body, a connecting plate connected between the two clamping sleeves, and a plate sleeve slidably sleeved on the outer side of the connecting plate; a groove and a correction mechanism are formed in the bottom of an inner cavity of the plate sleeve, and the correction mechanism comprises a plate body connected between the two clamping sleeves. According to the utility model, after the plate sleeve is connected with an external test bed, the connecting plate and the sensor are mounted in sequence, then the supporting rod is rotated, the sliding sleeve is translated, so that rays of the double-head laser lamp are aligned with the center of the test end of the sensor main body, then the multilateral turntable is rotated, and then the threaded rod jacks the connecting plate to rise; the method has the advantages that the operation steps are simple, and the mounting efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of torque sensors, in particular to a torque sensor used for an electric steering gear loading test bench. Background Art

[0002] A torque sensor uses a torsion shaft to convert torque into torsional stress or torsional angle, and then into an electrical signal related to the torque. Torsion shafts can be solid, hollow, or rectangular. Based on their operating principles, torsional stress torque sensors can be categorized into two types: resistive strain gauge and piezomagnetic. Torsion angle torque sensors can be categorized into three types: vibrating wire, photoelectric, and phase difference.

[0003] Application number CN201520346201.7 relates to a quick installation and adjustment device for a torque and speed sensor, comprising a base, a drive motor, a torque and speed sensor, a water pump, and a structure mounted on the base for adjusting the drive motor. This utility model effectively ensures installation accuracy and improves installation speed. While this application speeds up installation, it still presents some inconvenience during operation, and installation efficiency still needs to be improved. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] To this end, the technical solution adopted in this utility model is:

[0006] A torque sensor for an electric servo loading test bench comprises a testing mechanism, a correction mechanism and a height adjustment mechanism, wherein the testing mechanism comprises a sensor body, two ferrules sleeved on the outside of the sensor body, a connecting plate connected between the two ferrules, a plate sleeve slidably sleeved on the outside of the connecting plate, a groove being provided at the bottom of the inner cavity of the plate sleeve, a correction mechanism comprising a plate body connected between the two ferrules, a support rod movably plugged into the plate body, a sleeve slidably sleeved on the outside of the sleeve, and a double-headed laser lamp installed on one side of the sleeve, and a height adjustment mechanism comprising a partition installed inside the groove, a threaded rod vertically penetrating the partition, and a polygonal turntable sleeved on the bottom end of the threaded rod.

[0007] By adopting the above technical solution, after connecting the plate sleeve to the external test bench, the connecting plate and the sensor are installed in sequence, and then the support rod is rotated and the sliding sleeve is translated to align the beam of the double-headed laser lamp with the center of the test end of the sensor body. Then the polygonal turntable is rotated, and the threaded rod pushes the connecting plate to rise. The rising operation continues until the beam at the other end of the double-headed laser lamp is aligned with the center of the electric servo joint. The operation steps are simple and the installation efficiency is high.

[0008] In a preferred example, the present invention can be further configured as follows: the connecting plate is set to be in a "⊥" shape, and both side walls inside the plate sleeve are provided with L-shaped openings suitable for the lifting of the connecting plate.

[0009] In a preferred example, the present invention can be further configured as follows: two holes are provided on the connecting plate, and the two holes are respectively connected to the interiors of the two L-shaped openings.

[0010] In a preferred example, the present invention can be further configured as follows: the plate body is attached to the front side of the sensor body, and the length thereof is equal to the distance between the two ferrules.

[0011] In a preferred example, the present invention can be further configured as follows: the support rod and the sliding sleeve are both made of transparent material.

[0012] In a preferred example, the present invention can be further configured as follows: rectangular pieces are movably installed inside the two L-shaped openings, and the rectangular pieces are located at the tops of the two hole grooves.

[0013] In a preferred example, the present invention can be further configured as follows: a spring is connected between the connecting plate and the rectangular sheet, the diameter of the spring is smaller than the diameter of the hole, and the bottom end of the spring movably extends into the inside of the hole.

[0014] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0015] 1. In this utility model, after connecting the plate sleeve to the external test bench, the connecting plate and sensor are installed in sequence. Then, the support rod is rotated and the sliding sleeve is translated to align the beam of the double-headed laser lamp with the center of the test end of the sensor body. The polygonal turntable is then rotated, and the threaded rod pushes the connecting plate to rise. The rising operation continues until the beam of the other end of the double-headed laser lamp is aligned with the center of the electric servo joint. The operation steps are simple and the installation efficiency is high.

[0016] 2. In the utility model, when assembling the connecting plate and the plate sleeve, the rectangular sheet and the spring are pressed so that the spring is completely retracted into the hole groove, and then the connecting plate is inserted into the plate sleeve. After the spring loses pressure, it opens, and then the rectangular sheet is snapped into the L-shaped opening, effectively preventing the connecting plate from sliding out of the plate sleeve by itself, thereby improving the structural stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the assembly of the overall structure of the test mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the test mechanism of the utility model;

[0020] Figure 4 This is a schematic diagram of the correction mechanism of the utility model;

[0021] Figure 5 This is a schematic diagram of the height adjustment mechanism of the utility model.

[0022] Reference numerals:

[0023] 100, test mechanism; 110, sensor body; 120, ferrule; 130, connecting plate; 140, plate sleeve;

[0024] 200, calibration mechanism; 210, plate; 220, support rod; 230, sliding sleeve; 240, double-headed laser light;

[0025] 300, height adjustment mechanism; 310, partition; 320, threaded rod; 330, polygonal turntable;

[0026] 400, rectangular piece;

[0027] 500. Spring. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0029] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0030] The following describes a torque sensor for an electric steering gear loading test bench provided by some embodiments of the present invention in conjunction with the accompanying drawings.

[0031] Example 1:

[0032] Combine Figure 1-5 As shown, the present invention provides a torque sensor for an electric servo loading test bench, comprising a test mechanism 100, a correction mechanism 200, and a height adjustment mechanism 300. The test mechanism 100 comprises a sensor body 110, two ferrules 120 sleeved on the outside of the sensor body 110, a connecting plate 130 connected between the two ferrules 120, and a plate sleeve 140 slidably sleeved on the outside of the connecting plate 130. A groove is formed at the bottom of the inner cavity of the plate sleeve 140.

[0033] The calibration mechanism 200 includes a plate 210 connected between the two ferrules 120, a support rod 220 movably connected to the plate 210, a sleeve 230 slidably connected to the outside of the sleeve 230, and a double-headed laser light 240 mounted on one side of the sleeve 230;

[0034] The height adjustment mechanism 300 includes a partition 310 installed inside the groove, a threaded rod 320 vertically passing through the partition 310, and a polygonal turntable 330 sleeved on the bottom end of the threaded rod 320.

[0035] Furthermore, the connecting plate 130 is configured to be in a “⊥” shape, and both side walls inside the plate sleeve 140 are provided with L-shaped openings suitable for lifting and lowering the connecting plate 130 . The shape design of the connecting plate 130 enables it to be lifted and lowered smoothly.

[0036] Furthermore, two holes are provided on the connecting plate 130 , and the two holes are connected to the interior of the two L-shaped openings respectively. The holes can guide the spring 500 , reduce the probability of deformation of the spring 500 , and ensure its service life.

[0037] Furthermore, the plate 210 is attached to the front side of the sensor body 110 , and its length is equal to the distance between the two ferrules 120 . This size design ensures the aesthetics of the device to a certain extent.

[0038] Example 2:

[0039] Combine Figure 1 and Figure 4 As shown, based on the first embodiment, the support rod 220 and the sleeve 230 are both made of transparent material. The use of transparent material ensures that the light emitted by the double-headed laser lamp 240 can hit the sensor body 110, ensuring that the sensor body 110 and the external electric servo can be smoothly transversely coaxial.

[0040] Example 3:

[0041] Combine Figure 5 As shown, in the above embodiment, rectangular pieces 400 are movably installed inside the two L-shaped openings. The rectangular pieces 400 are located at the top of the two hole grooves. The rectangular pieces 400 can limit the top of the spring 500 to prevent the spring 500 from deviating left and right.

[0042] Furthermore, a spring 500 is connected between the connecting plate 130 and the rectangular sheet 400. The diameter of the spring 500 is smaller than the diameter of the hole groove. The bottom end of the spring 500 is movable and extends into the inside of the hole groove. The spring 500 is provided to press the connecting plate 130 to prevent the connecting plate 130 from sliding out of the plate sleeve 140 by itself.

[0043] The working principle and usage process of the present invention are as follows: when the device is put into actual use, a technician in this field connects the plate sleeve 140 to the external test bench, and then clamps the sensor body 110 between the two clamping sleeves 120, and then rotates the support rod 220 to align the sliding sleeve 230 with the test end of the sensor body 110, and then slides the sliding sleeve 230 to fine-tune the double-headed laser lamp 240 so that the light of the double-headed laser lamp 240 hits the center of the test end of the sensor body 110, and then the ray from the other end of the double-headed laser lamp 240 hits the electric servo, and then rotates the polygonal turntable 330, and then the threaded rod 320 pushes the connecting plate 130, the clamping sleeve 120, and the sensor body 110 to rise. The rising process continues until the laser ray is aligned with the center of the electric servo joint to ensure that the sensor body 110 is transversely coaxial with the electric servo. The operation steps are simple and the installation efficiency is high.

[0044] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A torque sensor for an electric servo loading test bench, characterized in that: include: A test mechanism (100) includes a sensor body (110), two ferrules (120) sleeved on the outside of the sensor body (110), a connecting plate (130) connected between the two ferrules (120), and a plate sleeve (140) slidably sleeved on the outside of the connecting plate (130), wherein a groove is provided at the bottom of the inner cavity of the plate sleeve (140); A correction mechanism (200), the correction mechanism (200) comprising a plate body (210) connected between two clamping sleeves (120), a support rod (220) movably connected to the plate body (210), a sliding sleeve (230) slidably sleeved on the outside of the support rod (220), and a double-headed laser lamp (240) mounted on one side of the sliding sleeve (230); A height adjustment mechanism (300) includes a partition (310) installed inside the groove, a threaded rod (320) vertically penetrating the partition (310), and a polygonal turntable (330) sleeved on the bottom end of the threaded rod (320).

2. The torque sensor for an electric servo loading test bench according to claim 1, characterized in that: The connecting plate (130) is configured in a "⊥" shape, and both side walls inside the plate sleeve (140) are provided with L-shaped openings suitable for the lifting of the connecting plate (130).

3. The torque sensor for the electric steering gear loading test bench according to claim 2, characterized in that: The connecting plate (130) is provided with two holes and slots, and the two holes and slots are respectively communicated with the interiors of the two L-shaped openings.

4. The torque sensor for an electric steering gear loading test bench according to claim 1, characterized in that: The plate (210) is attached to the front side of the sensor body (110), and has a length equal to the distance between the two ferrules (120).

5. The torque sensor for an electric steering gear loading test bench according to claim 1, characterized in that: The support rod (220) and the sliding sleeve (230) are both made of transparent material.

6. The torque sensor for an electric steering gear loading test bench according to claim 3, characterized in that: A rectangular piece (400) is movably installed inside the two L-shaped openings, and the rectangular piece (400) is located at the top of the two hole grooves.

7. The torque sensor for an electric steering gear loading test bench according to claim 6, characterized in that: A spring (500) is connected between the connecting plate (130) and the rectangular sheet (400), the diameter of the spring (500) is smaller than the diameter of the hole groove, and the bottom end of the spring (500) is movably extended into the inside of the hole groove.

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