Motor output shaft locking structure and torque detection device using same

Abstract

The utility model discloses a motor output shaft locking structure and a torque detection device using the same. Belongs to the technical field of motor torque detection. According to the technical key points, the device comprises a base and a connector connected with detection equipment, the front end of the connector is provided with a connecting hole matched with a motor output shaft, and the side wall of the connector is provided with an elastic pin assembly perpendicular to the connecting hole; a pin taking assembly matched with the elastic pin assembly is arranged on the base. The utility model aims to provide a motor output shaft locking structure which is simple in structure and convenient to use and a torque detection device using the locking structure. The motor output shaft locking device is used for locking a motor output shaft during torque detection.

Description

Technical Field

[0001] The utility model relates to a motor output shaft locking structure, and more specifically, to a motor output shaft locking structure and a torque detection device using the locking structure. Background Art

[0002] At present, the characteristics of the newly developed soft water valve gearbox motor products of our company are: noise ≤55dB / 0.3m and meet the AC24V minimum starting torque ≥3.3Nm. In order to meet the product technical requirements, it is necessary to test the motor starting torque to select qualified motor products. The existing torque detection equipment needs to be fixedly connected to the motor output shaft when in use. Usually, the pin hole on the motor output shaft is connected to the torque detection equipment by manual alignment, which is a slow connection method. Utility Model Content

[0003] The utility model aims to provide a motor output shaft locking structure with simple structure and convenient use and a torque detection device using the locking structure in view of the above-mentioned deficiencies in the prior art.

[0004] The technical solution of the utility model is implemented as follows: a motor output shaft locking structure includes a base and a connector connected to a detection device, the front end of the connector is provided with a connecting hole matching with the motor output shaft, and an elastic pin assembly perpendicular to the connecting hole is provided on the side wall of the connector; a nail removal assembly matching with the elastic pin assembly is provided on the base.

[0005] In the above-mentioned motor output shaft locking structure, the elastic pin assembly includes a mounting hole arranged on the side wall of the connecting head perpendicular to the connecting hole, the mounting hole is a stepped hole which is larger at the top and smaller at the bottom, and a cover plate is provided at the open end of the mounting hole; a pin which matches the pin hole of the motor output shaft is provided in the mounting hole, a limiting ring which adapts to the inner wall of the upper end of the mounting hole is provided in the middle section of the pin, and a spring is sleeved on the pin between the limiting ring and the cover plate.

[0006] In the above-mentioned motor output shaft locking structure, the nail removal assembly includes a two-dimensional movable assembly arranged on a base, a latch plate is provided on the two-dimensional movable assembly, and a notch matching with the elastic pin assembly is provided on the latch plate; the length of the elastic pin assembly is greater than the sum of the thickness of the outer wall of the connecting head and the diameter of the motor output shaft, and a lifting ring is provided at the outer end of the elastic pin assembly.

[0007] In the above-mentioned motor output shaft locking structure, a proximity sensor is provided on the base on one side of the connecting head, and a sensing head matching the proximity sensor is provided on the connecting head, and the angle between the sensing head and the elastic pin is 90°; when the sensing head matches the proximity sensor, the elastic pin is opposite to the latch plate.

[0008] After the utility model adopts the above structure, when the motor output shaft is located in the connecting hole and runs until the pin hole on the output shaft is aligned with the pin of the elastic pin assembly, the pin is quickly inserted into the pin hole under the elastic force to connect the motor output shaft with the connecting head. There is no need to deliberately align the pin hole with the pin, which can effectively improve the connection efficiency.

[0009] A torque detection device using the above locking structure includes a torque detection unit arranged at one end of a base, the connector is arranged at the input end of the torque detection unit shaft, and the output end of the torque detection unit is connected to an external measuring instrument and a control terminal.

[0010] In one of the above-mentioned torque detection devices, a positioning groove for placing the motor is provided on the base at the end opposite to the torque detection unit.

[0011] In one of the above-mentioned torque detection devices, the torque detection unit is a magnetic powder clutch; the input end of the rotating shaft of the magnetic powder clutch is connected to the connector, and the output end is connected to an external measuring instrument.

[0012] After the utility model adopts the above structure, the motor drives the connector to drive the torque detection unit to realize the motor load torque test operation, and cooperates with the external measuring instrument to detect defective products. When in use, the motor output shaft and the connector can be quickly connected and fixed, which can effectively improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described in detail below in conjunction with the embodiments in the accompanying drawings, but this does not constitute any limitation to the present invention.

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 It is a partial structural schematic diagram of A of the utility model;

[0017] Figure 4 It is a main structural schematic diagram of the utility model.

[0018] In the figure: 1. base; 2. connecting head; 3. connecting hole; 4. elastic pin assembly; 4a. mounting hole; 4b. cover plate; 4c. pin; 4d. limiting ring; 4e. spring; 5. pin removal assembly; 5a. two-dimensional moving assembly; 5b. latch plate; 5c. notch; 5d. lifting ring; 6. proximity sensor; 7. sensor head; 8. torque detection unit; 9. positioning groove. DETAILED DESCRIPTION

[0019] See also Figure 1-4 As shown, a motor output shaft locking structure of the utility model comprises a base 1 and a connector 2 connected to a detection device, characterized in that a connection hole 3 matching with the motor output shaft is provided at the front end of the connector 2, and an elastic pin assembly 4 perpendicular to the connection hole 3 is provided on the side wall of the connector 2; a pin removal assembly 5 matching with the elastic pin assembly 4 is provided on the base 1. When the motor output shaft is located in the connection hole and is operated until the pin hole on the output shaft is aligned with the pin of the elastic pin assembly, the pin is quickly inserted into the pin hole under the elastic force to connect the motor output shaft with the connector. After the detection is completed, the pin is pulled out of the pin hole by the pin removal assembly, and the motor output shaft can be removed from the connection hole.

[0020] In this embodiment, preferably, the elastic pin assembly 4 includes a mounting hole 4a arranged on the side wall of the connector 2 perpendicular to the connecting hole 3, the mounting hole 4a is a stepped hole with a larger upper portion and a smaller lower portion, and a cover plate 4b is arranged at the open end of the mounting hole 4a; a pin 4c matching the pin hole of the motor output shaft is arranged in the mounting hole 4a, a stop ring 4d adapted to the inner wall of the upper end of the mounting hole 4a is arranged in the middle section of the pin 4c, and a spring 4e is sleeved on the pin 4c between the stop ring 4d and the cover plate 4b. The motor output shaft is pushed into the connecting hole, and the power supply is turned on to the motor after the torque detection unit is powered on for 1 second, and the pin removal assembly releases the pin at the same time. When the motor runs to the point where the pin hole on the output shaft is aligned with the elastic pin, the pin is quickly inserted into the pin hole under the action of the spring.

[0021] In this embodiment, the nail removal assembly 5 includes a two-dimensional moving assembly 5a arranged on the base 1, a latch plate 5b is provided on the two-dimensional moving assembly 5a, and a notch 5c matched with the elastic pin assembly 4 is provided on the latch plate 5b; the length of the elastic pin assembly 4 is greater than the sum of the thickness of the outer wall of the connector 2 and the diameter of the motor output shaft, and a lifting ring 5d is provided at the outer end of the elastic pin assembly 4. The two-dimensional moving assembly includes a horizontal cylinder arranged on the base, a lifting cylinder is provided on the piston rod of the horizontal cylinder, the latch plate is connected to the piston rod of the lifting cylinder, and the cylinder moves at a relatively fast speed, so that the pin can be released and extracted quickly. In addition, the two-dimensional moving assembly can also be composed of other conventional moving assemblies in the art such as screws and motors.

[0022] Further preferably, a proximity sensor 6 is provided on the base 1 on one side of the connector 2, and a sensing head 7 matched with the proximity sensor 6 is provided on the connector 2, and the angle between the sensing head 7 and the elastic pin assembly 4 is 90°; when the sensing head 7 is matched with the proximity sensor 6, the elastic pin assembly 4 is opposite to the latch plate 5b. After the motor runs for a set load time or load running number of revolutions, when the sensing head runs to the proximity sensor position, the motor and the torque detection unit are simultaneously powered off and stopped, and the pin assembly pin is lifted.

[0023] When the motor is working, the output shaft is inserted into the connection hole and the power is turned on to start the operation. The two-dimensional moving component moves the latch plate to release the pin. When the motor runs until the pin hole on the output shaft is aligned with the pin, the pin is quickly inserted into the pin hole under the action of the spring to connect the motor output shaft with the connector. After the motor runs for the set load time or load operation number of revolutions, the two-dimensional moving component drives the latch plate to pull up the pin and remove the motor output shaft from the connection hole.

[0024] See also Figure 1-2 As shown, a torque detection device of the locking structure of the utility model includes a torque detection unit 8 arranged at one end of the base 1, the connector 2 is arranged at the input end of the torque detection unit 8 shaft, and the output end of the torque detection unit 8 is connected to an external measuring instrument and a control terminal. The external measuring instrument adopts a digital electrical parameter measuring instrument, which is used to display voltage, current, and power, and can set the upper and lower limits of technical requirements and alarm prompts. The control terminal includes an adjustment display panel of the torque detection unit, a PLC program, and a proximity sensor control panel, which mainly controls the operation and operation steps of each component.

[0025] Preferably, a positioning groove 9 for placing the motor is provided on the base 1 at the end opposite to the torque detection unit 8. The positioning groove is provided to facilitate the alignment of the output shaft and the connecting hole when the motor is placed.

[0026] Preferably, the torque detection unit 8 is a magnetic powder clutch; the shaft input end of the magnetic powder clutch is connected to the connector 2, and the output end is connected to an external measuring instrument. The magnetic powder clutch has high linearity and high-precision torque control, and is vibration-free, impact-free, and noise-free in working state.

[0027] During operation, when the motor output shaft is fixedly connected to the connector through the locking structure, it drives the torque detection unit to rotate. The torque detection unit transmits the torque signal to the digital electrical parameter measuring instrument to display the motor load torque. When the load torque exceeds the upper and lower power limits, the alarm light will be on.

[0028] The above embodiments are preferred implementation modes of the present invention and are only used to facilitate the explanation of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the relevant technical field, if they do not depart from the scope of the technical features of the present invention, can make equivalent embodiments by partial changes or modifications to the technical contents disclosed in the present invention, and they still fall within the scope of the technical features of the present invention without departing from the technical features of the present invention.

Claims

1. A motor output shaft locking structure, comprising a base (1) and a connector (2) connected to a detection device, characterized in that: The front end of the connector (2) is provided with a connecting hole (3) that matches the output shaft of the motor, and a resilient pin assembly (4) perpendicular to the connecting hole (3) is provided on the side wall of the connector (2); and a pin removal assembly (5) that matches the resilient pin assembly (4) is provided on the base (1).

2. A motor output shaft locking structure according to claim 1, characterized in that: The elastic pin assembly (4) comprises a mounting hole (4a) arranged on the side wall of the connector (2) perpendicular to the connecting hole (3); the mounting hole (4a) is a stepped hole which is larger at the top and smaller at the bottom; a cover plate (4b) is provided at the open end of the mounting hole (4a); a pin (4c) which matches the pin hole of the motor output shaft is provided in the mounting hole (4a); a limiting ring (4d) which matches the inner wall of the upper end of the mounting hole (4a) is provided in the middle section of the pin (4c); and a spring (4e) is sleeved on the pin (4c) between the limiting ring (4d) and the cover plate (4b).

3. The motor output shaft locking structure according to claim 1, characterized in that: The nail removal assembly (5) comprises a two-dimensional movable assembly (5a) arranged on a base (1), a latch plate (5b) being arranged on the two-dimensional movable assembly (5a), and a notch (5c) matching with the elastic pin assembly (4) being arranged on the latch plate (5b); the length of the elastic pin assembly (4) is greater than the sum of the thickness of the outer wall of the connector (2) and the diameter of the motor output shaft, and a lifting ring (5d) is arranged at the outer end of the elastic pin assembly (4).

4. A motor output shaft locking structure according to claim 3, characterized in that: A proximity sensor (6) is provided on the base (1) on one side of the connector (2), and a sensing head (7) matched with the proximity sensor (6) is provided on the connector (2), wherein the angle between the sensing head (7) and the elastic pin assembly (4) is 90°; when the sensing head (7) is matched with the proximity sensor (6), the elastic pin assembly (4) and the latch plate (5b) are opposite to each other.

5. A torque detection device using the locking structure according to any one of claims 1 to 4, comprising a torque detection unit (8) arranged at one end of a base (1), characterized in that: The connector (2) is arranged at the input end of the rotating shaft of the torque detection unit (8), and the output end of the torque detection unit (8) is connected to an external measuring instrument and a control terminal.

6. A torque detection device according to claim 5, characterized in that: A positioning groove (9) for placing the motor is provided on the base (1) at the end opposite to the torque detection unit (8).

7. A torque detection device according to claim 5, characterized in that: The torque detection unit (8) is a magnetic powder clutch; the input end of the rotating shaft of the magnetic powder clutch is connected to the connector (2), and the output end is connected to an external measuring instrument.

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